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ELECTRONIC TUBE MANUAL INDEX. All Manuals. This Index indicates the particular manual which contains com- plete data on any tube. For convenience, the tubes ...
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Electronic tube manual index. All Manuals. This Index indicates the particular manual which contains com-plete data on any tube.
GE Industrial Tube Manual 45 to 58
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Document DEVICE REPORTGE Industrial Tube Manual 45 to 58PUS 17.)P \ INDUSTRIAL PUBLISHED BY THE GENERAL ELECTRIC COMPANY ELECTRONICS DEPARTMENT Postage Will be Paid By Addressee Bli'SINESS REPLY CARD Pint Clan, Permit. ti o. ./10, P. 1.. & Fl -Seheneenu9.,A. T. ELECTRONICS DEPARTMENT GENERAL ELECTRIC COMPANY 1 RIVER ROAD SCHENECTADY, N. Y. DEPT. 269-206 No Postage Stamp Necessary If Mailed in the United States tta® 11111111111111111111111 1111111111511=111 11111111111111110111 MINENINSYMI 11.11111MINIMII 1/11111111MIIIMI 11110111111161110 INIMINEMIN SINEEMISIME EXEMBIONMI 445 (3 Pile 883) Postage Will be Paid By Addressee BUSINESS REPLY CARD Fin." Clan, Permit NO. 1-Sec. 510, P. L. Si. R.-Schenectady, N. 1', ELECTRONICS DEPARTMENT GENERAL ELECTRIC COMPANY 1 RIVER ROAD SCHENECTADY, N. Y. DEPT. 269-206 No Postage Stamp Necessary If Mailed in the United States CHANGE OF ADDRESS 6333 -I Manual Registration Number My new address is , Transfer my manual to (check one) Name Title Company Address City and State Transferred From (Name) Special Requests CHANGE OF ADDRESS 633 3 -I Manual Registration Number__ My new address is , Transfer my manual to (check one) Name Title Company Address City and State Transferred From (Name) Special Requests ELECTRONIC TUBE MANUAL INDEX All Manuals This Index indicates the particular manual which contains complete data on any tube. For convenience, the tubes are listed in alpha -numerical order. For listings by class refer to the Table of Contents sheet in each volume. Tube Type Class Manual* Tube Type Class 0A2 0A3 0A4 -G OB2 OB3 0C3 OD3 OZ4 OZ4-A OZ4-G KC -1 1A5-GT 1 A7-GT 1AD4 lAG4 1AH4 1A15 1AX2 1 B3-GT 1 DN5 1 G3-GT 1 H5-GT 1J3 1K3 1L4 1 L6 GL -1121 GL -1 L24 GL -1 L25 GL -1 L31 GL -1 L32 GL -1 L33 GL -1 L36 GL -1 L38 1 LA6 1 LH4 1 LN5 1N5-GT GL -1 P21 GL -1 P39 Glow Tube Glow Tube Gas Triode Glow Tube Glow Tube Glow Tube Glow Tube Diode Twin Diode Diode Rectifier Pentode Pentagrid Converter Pentode Beam Pentode Pentode Diode -Pentode Diode Diode Diode -Pentode Rectifier Diode -Triode Diode Diode Pentode Pentagrid Converter Vacuum Capacitor Vacuum Capacitor Vacuum Capacitor Vacuum Capacitor Vacuum Capacitor Vacuum Capacitor . Vacuum Capacitor Vacuum Capacitor Pentagrid Converter Diode -Triode Pentode Pentode Phototube Phototube F F F F F F F R F R R R R R R R R R R R R R R R R R R GL -1 P40 GL -1Q26 -A 1R5 1 S2 -A 1S4 1 S5 1T4 1U4 1U5 1V2 1V6 1X2 -A 1X2 -B 2A3 2AF4 2AF4-A GL -2B22 GL -2623 2BN4 GL -2C39 -B GL -2C40 GL -2C40 -A GL -2C42 GL -2C43 GL -2C46 2CY5 2D21 2E24 2E26 2E30 GL -2H21 2X2 -A KC -3 3A2 3A3 3AF4-A 3AL5 3AU6 3AV6 3B2 Phototube Reference Cavity Heptode Rectifier Pentode Diode -Pentode Pentode Pentode Diode -Pentode Diode Triode -Pentode Diode Diode Triode Triode Triode Diode Rectifier Triode Triode Triode Triode Triode Triode Triode Tetrode Thyratron Beam Pentode Beam Pentode Beam Pentode Phasitron Diode Rectifier Diode Diode Triode Twin Diode Pentode Duplex -Diode Triode Diode * R= Receiving Manual F = Five -Star and Special -Purpose Manual T =Transmitting Manual ELECTRONIC COMPONENTS DIVISION GENERAL d ELECTRIC Schenectady 5, N. Y. Supersedes ET -T1216 A dated 11-56 ET-T1216B PAGE 1 6-58 Manual* T R - R R R R R R R R R R R R T - R T T T T- R F F F F F- R R R R R R R ET-T1216B PAGE 2 6-58 Tube Type Class GL-3B24W 3BA6 3BC5 3BE6 3BN4 3BN6 3BU8 3BY6 3BZ6 GL -3C22 GL -3C23 3CB6 3CE5 3CF6 3CS6 3DK6 3DT6 3Q4 3Q5-GT 3S4 3V4 GL-3X2500A3 P1-4 4AU6 4BC8 4BN6 413Q7 -A 4BS8 4BU8 4BZ6 4BZ7 4CB6 4CS6 4CY5 GL -4D21/4 -125A 4DT6 GL-4X150A GL -4-1000A 5AM8 5AN8 5AQ5 5AS4 5AS8 5AT8 5AU4 5AV8 5AW4 5B8 513E8 5BK7-A 5BQ7-A 5BR8 5BT8 GL-5C21/C61 GL -5C24 Rectifier Pentode Pentode Heptode Triode Gated -Beam Twin Pentode Heptode Pentode Triode Thyratron Pentode Pentode Pentode Heptode Pentode Pentode Pentode Pentode Pentode Pentode Triode Triode Pentode Twin Triode Gated -Beam Twin Triode Twin Triode Twin Pentode Pentode Twin Triode Pentode Heptode Tetrode Tetrode Pentode Tetrode Tetrode-Pentode Diode -Pentode Triode -Pentode Beam Pentode Twin Diode Diode -Pentode Triode -Pentode Twin Diode Triode -Pentode Twin Diode Triode -Pentode Triode -Pentode Twin Triode Twin Triode Triode -Pentode Double -Diode Pentode Thyratron Triode INDEX Manual* Tube Type R R R R R R R R I R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R - 5CG8 5CL8-A 5CQ8 . 5CZ5 5DH8 SEAS 5J6 5R4-GYA - 5T8 5U4 -GA 5U4 -GB 5U8 5V3 5V4 -GA 5V6-GT - 5X8 5Y3-GT 5Y3-WGTB 5Y4-GT 5Z3 6A7 - 6A8 - 6AB4 - 6AC5-GT 6AC7 6AC7-WA 6AC7-Y 6AD7-G 6AF3 6AF4 6AF4-A 6AG5 6AG7 - 6AG7-Y 6AH4-GT 6AH6 - 6AK5 - 6AK6 6AL5 6AL7-GT 6AM4 6AM8 6AN5 6AN8 6AQ5 6AQ5-A 6AQ6 6AQ7-GT 6AR5 6AR8 6AS5 6AS6 - 6AS7-GA - 6AS8 - 6AT6 Class Manual* Triode -Pentode Triode-Tetrode Triode -Pentode Beam Power Triode -Pentode R R - - R Triode-Pentode..R Twin Triode R Twin Diode F Triple -Diode Triode R Twin Diode R Twin Diode Triode -Pentode Rectifier Twin Diode Pentode R R - R R Triode -Pentode Diode Service Designationt Twin Diode Diode R R - R R Pentagrid Converter Pentagrid Converter Triode Triode Pentode Service Designationt Pentode Triode -Pentode Diode Triode R R R R R - R R Triode R Pentode R Pentode R Pentode Triode R Pentode R Pentode R Pentode R Twin Diode R Electron -Ray Indicator R Triode R Diode -Pentode R Beam Power R Triode -Pentode R Beam Pentode R Beam Pentode R Duplex -Diode Triode R Duplex -Diode Triode R Pentode R Sheet Beam R Beam Power R Pentode R Twin Triode R Diode -Pentode R Duplex -Diode Triode R * I -= Industrial Manual R = Receiving Manual F =Five -Star and Special -Purpose Manual t Because of the special nature of this type, data sheets are not maintained. Refer to the applicable Armed Service specifications for ratings. Tube Type Class INDEX Manual* Tube Type Class ETT1216B PAGE 3 6-58 Manual* 6AT8 6AU4-GTA 6AU5-GT 6AU6-A 6AU6-WA 6AU8-A 6AV5-GA 6AV6 6AW8-A 6AX4-GT 6AX5-GT 6AZ8 6B8 6BA6 6BA7 6BA8-A 6BC5 6BC7 6BC8 6BD6 6BE6 6BF5 6BF6 66G6 -GA 6BH6 6BH8 6616 6617 66J8 6BK4 6BK5 66K7-6 6BL7-GTA 6BN4 6BN6 6BN8 66Q5 6BQ6-GA 6BQ6-GTB 6BQ7-A 6BR8 6BS8 6BU8 6BV8 6BW4 6BW8 6BX7-GT 6BY4 6BY5-GA 6BY6 6BY3 66Z6 66Z7 6BZ8 6C4 Triode -Pentode Diode Beam Pentode Pentode Service Designation t Triode -Pentode Beam Pentode Duplex -Diode Triode Triode -Pentode Diode Diode Triode -Pentode Duplex -Diode Pentode Pentode Pentagrid Converter Triode -Pentode Pentode Triple Diode Twin Diode Pentode Heptode Beam Power Duplex -Diode Triode Beam Pentode Pentode Triode -Pentode Pentode Triple Diode Double -Diode Triode Beam Triode Beam Pentode Twin Triode Twin Triode Triode Gated -Beam Double -Diode Triode Power Pentode Pentode Beam Pentode Twin Triode Triode -Pentode Twin Triode Twin Pentode Duplex -Diode Triode Rectifier Duplex -Diode Pentode Twin Triode Triode Twin Diode Heptode Pentode Pentode Twin Triode Twin Triode Triode R 6C5 R 6C6 R 6CA5 R - 6CB5-A 6CB6-A R 6CD6-GA R 6CE5 R 6CF6 R 6CG7 R 6CG8-A R 6CH8 R 6CK4 R 6CL6 R 6CW-A R 6CM6 R 6CM7 R 6CN7 R 6CQ8 R 6CR6 R 6CS6 R 6CS7 R 6CU5 R 6CU6 R 6CU8 R 6CX8 R 6CY5 R 6CY7 R 6CZ5 - 6D4 R 6D6 R 6DA4 R 6D65 R 6DE6 R 6DG6-GT R 6DK6 - 6DN7 - 6DQ5 R 6DQ6-A R 6DS5 R 6DT6 R 6E5 R 6EA8 R 6E88 R 6EH8 - 6EW6 R 6F5 R 6F6 R 6F6-GT - 6H6 R 6J4 - 6J5 R 6J6 R 6J7 R 6K6-GT R 6K7 Triode Pentode Beam Pentode Beam Pentode Pentode Beam Pentode Pentode Pentode Twin Triode Triode -Pentode Triode -Pentode Triode Pentode Triode-Tetrode Beam Pentode Double Triode Duplex -Diode Triode Triode-Tetrode Diode -Pentode Heptode Double Triode Beam Power Beam Pentode Triode -Pentode Triode -Pentode Tetrode Double Triode Beam Power Thyratron Pentode Diode Beam Pentode Pentode Beam Pentode Pentode Double Triode Beam Power Beam Pentode Beam Power Pentode Electron -Ray Indicator Triode -Pentode Triode -Pentode Triode -Pentode Pentode Triode Pentode Pentode Twin Diode Triode Triode Twin Triode Pentode Pentode Pentode R R R R R R R R R R - R R R R R - R R - R R - R R R R R - R R R R - R - R R R - - R R R R R R R R R R R * R = Receiving Manual F =Five -Star and Special -Purpose Manual Because of the special nature of this type, data sheets are not maintained. Refer to the applicable Armed Service specifications for ratings. ETT1216B PAGE 4 658 Tube Type Class INDEX Manual* Tube Type Class Manual* 6K8 6L6 616 -GB GL-C6M 6N7 6Q7 6S4 -A 6S8-GT 6SA7 6SA7-Y 6SB7-Y 6SC7 6SF5 6SF7 6SG7 6SG7-Y 6SH7 6SJ7 6SJ7-Y 6SK7 6SK7-WA 6SK7-Y 6SL7-GT 6SN7-GTB 6SQ7 6SR7 6SS7 6SV7 614 6T8 6T8 -A 6U5 6U8 6U8 -A 6V3 -A 6V6 6V6-GT 6V6-GTY 6V6 -Y 6W4-GT 6W6-GT 6X4 6X4 -WA 6X5-GT 6X8 6Y6 -G 6Y6-GT 7A4 7A6 7A7 7A8 7AF7 7AG7 7AU7 7B4 Triode-Hexode Beam Power Beam Power Thyratron Twin Triode Duplex -Diode Triode Triode Triple -Diode Triode Pentagrid Converter Pentagrid Converter Pentagrid Converter Twin Triode Triode Diode -Pentode Pentode Pentode Pentode Pentode Pentode Pentode Service Designationt Pentode Twin Triode Twin Triode Duplex -Diode Triode Duplex -Diode Triode Pentode Diode -Pentode Triode Triple -Diode Triode Triple -Diode Triode Electron -Ray Indicator Triode -Pentode Triode -Pentode Diode Beam Power Pentode Beam Power Receiving Diode Beam Pentode Twin Diode Service Designationt Diode Triode -Pentode Beam Power Beam Pentode Triode Twin Diode Pentode Octode Twin Triode Pentode Twin Triode Triode R 7B5 R 7B6 R - 7B7 7B8 R 7C5 R 7C6 R 7C7 R GL -7C29 R GL -7D21 - 7EY6 R 7F7 R 7F8 R 7F8 -TV R 7117 R 7J7 - 7K7 R 7N7 R 7Q7 - 7S7 R 7Y4 - 7Z4 - 8AU8-A R 8AW8-A R 813Q5 . R 8CG7 R 8CM7 R 8CN7 R 8CS7 R 8CX8 R 8EB8 R 9CL8 R 9U8 -A R 1008 R 1 ODE7 R 11CY7 R 12A6 R 12A8-GT - 12AB5 - 12AC6 R I 2AD6 R 12AE6 R - 12AF3 12AF6 R 12AJ6 R 12AL5 R I2AL8 R 12AQ5 R 12AT6 R 12AT7 R 12AT7-WA R 12AU6 R 12AU7 R 12AU7-A R 12AV5-GA R 12AV6 Pentode Duplex -Diode Triode Pentode Pentagrid Converter Beam Power Duplex -Diode Triode Pentode Triode Tetrode Pentode Twin Triode Twin Triode Twin Triode Pentode Triode-Heptode Duplex -Diode Triode Twin Triode Pentagrid Converter Triode-Heptode Diode Diode Triode -Pentode Triode -Pentode Pentode Twin Triode Double Triode Duplex -Diode Triode Double Triode Triode -Pentode Triode -Pentode. Triode-Tetrode Triode -Pentode Triode -Pentode Double Triode Double Triode Beam Power Pentagrid Converter Beam Pentode Pentode Heptode Duplex -Diode Triode Diode Pentode Duplex -Diode Triode Twin Diode Triode-Tetrode. Beam Power Duplex -Diode Triode Twin Triode Service Designationt Pentode Twin Triode Twin Triode . Beam Pentode Duplex -Diode Triode R R R R R R R T R R R R R R R R R R R R R - R R R - R - R R R R R R R R R R R R R R R - R R R R R * R =Receiving Manual T =Transmitting Manual t Because of the special nature of this type, data sheets are not maintained. Refer to the applicable Armed Service specifications for ratings. Tube Type Class 12AV7 12AW6 12AX4-GTA 12AX7 12AY7 12AZ7 12B4 -A 12BA6 12BA7 12BD6 1213E6 12BF6 12BH7-A 12BK5 12BL6 12BN6 12BQ6-GA 12BQ6-GTB 12BR7 12BV7 12BY7-A 12BZ7 12C5 12CA5 12CN5 12CR6 12CT8 12CU5 12CU6 12CX6 12D4 12DB5 12DE8 12DK7 12DL8 12DQ6-A 12DQ7 12DV8 12DZ6 12EA6 12EG6 12F8 12H6 12.15 12J8 12K5 12K7-GT 12K8 12L6-GT 12R5 12SA7 12SA7-Y 12SC7 12SF5 12517 Twin Triode Pentode Diode Twin Triode Twin Triode Twin Triode Triode Pentode Pentagrid Converter Pentode Heptode Duplex -Diode Triode Twin Triode Beam Pentode Pentode Gated Beam Pentode Beam Pentode Diode -Triode Pentode Pentode Twin Triode Beam Pentode Beam Pentode Pentode Diode -Pentode Triode -Pentode Beam Power Beam Pentode Pentode Diode Beam Pentode Receiving Double -Diode Tetrode Receiving Beam Pentode Pentode Duplex -Diode Tetrode Pentode Pentode Receiving Duplex -Diode Pentode Twin Diode Triode Double -Diode Tetrode Tetrode Pentode Triode-Hexode Beam Pentode Beam Pentode Pentagrid Converter Pentagrid Converter Twin Triode Triode Diode -Pentode * I =Industrial Manual R = Receiving Manual F =Five -Star and Special -Purpose Manual INDEX Manual* Tube Type R R R R F 12SG7 12SG7-Y 12S1-17 12SJ7 12SK7 R 12SK7-Y R 12SL7-GT R 125N7-GTA R 12SQ7 R 12SR7 R 12V6-GT R 12W6-GT R 12X4 R 14A7 R 14AF7 R 14B6 R 14Q7 R 14R7 R 14S7 R 17AX4-GT R 17D4 R 17DQ6-A R 171-13 R - 18A5 19AU4-GTA R 19BG6-GA R 19J6 R 19T8 R 21EX6 - 24A R 25AV5-GA - 25AX4-GT - 25BQ6-GA - 25BQ6-GTB - 25C5 R 25C6 -G R 25CA5 R 25CD6-GB R 25CU6 R 25DN6 - 25EC6 R 25L6-GT R 25W4-GT R 25W6-GT - 25Z5 R 25Z6-GT R 26 R 27 R FG-27-A R 28D7 R 32L7-GT - 35A5 R 35B5 R 35C5 R 35L6-GT ET-T1216B PAGE 5 6-58 Class Manual* Pentode Pentode Pentode Pentode Pentode Pentode Twin Triode Twin Triode Duplex -Diode Triode Duplex -Diode Triode R - R R R - R R R R Pentode R Beam Pentode R Twin Diode R Pentode R Twin Triode R Duplex -Diode Triode R Pentagrid Converter R Duplex -Diode Pentode R Triode-Heptode R Diode R Diode R Beam Pentode R Diode R Beam Pentode R Diode R Beam Pentode R Twin Triode R Triple -Diode Triode R Receiving.. ...... ....... Tetrode R Beam Pentode Diode Pentode Beam Pentode Beam Pentode Beam Power Beam Pentode Beam Pentode Beam Pentode Beam Pentode R R R R R - R R R R Beam Pentode R Beam Pentode R Diode R Beam Pentode R Diode R Diode Triode Triode Thyratron Twin Beam Power R R R 1 R Diode Beam Power R Beam Power R Beam Power R Beam Power R Beam Power R ETT1216B PAGE 6 6-58 Tube Type Class 35W4 35Y4 35Z3 35Z5-GT 41 42 47 50A5 50B5 5005 50DC4. 50L6-GT 50X6 50Y6-GT 50Y7-GT 58 70L7-GT 75 78 80 FG-81-A 83 84/6Z4 FG-97 FG-98-A GL -100TH FG-105 117N7-GT 117Z3 117Z6-GT FG-154 FG-172 GL -207 GL -242-C GL -266-B FG-280 SA -302 SA -350 GL -393-A FP -400 GL -411 GL -414 GL -441 502-A GL -575-A GL -592 Z-599 01-627 01-672-A GL -673 01-678 GL -801-A GL -802 GL -803 GL -805 Diode Diode Diode Diode Pentode Pentode Pentode Beam Power Beam Power Beam Pentode Diode Beam Pentode Diode Diode Diode Pentode Diode Beam Power Duplex -Diode Triode Triode Twin Diode Thyratron Diode Diode Thyratron Thyratron Triode Thyratron Diode Beam Power Diode Beam Power Diode Thyratron Thyratron Triode Triode Rectifier Rectifier Triode Triode Thyratron Rectifier Rectifier Thyratron Phototube Thyratron Rectifier Triode Magnetron Thyratron Thyratron Rectifier Thyratron Triode Pentode Pentode Triode * I =Industrial Manual R =Receiving Manual F = Five -Star and Special -Purpose Manual T =Transmitting Manual INDEX Manual* Tube Type R 807 R GL -809 R GL -810 R GL -811-A R GL -812-A R GL -813 R GL -814 R GL -815 R GL -816 R GL -828 R GL -829-B R GL -832-A R GL -833-A R GL -836 R GL -837 R GL -838 R GL -845 R GL -851 R GL -857-B R 01-862-A R R I - GL -866-A GL -868 GL -869-B - GL -870-A GL -872-A I R R R - GL -880 884 885 GL -889-A GL -889R -A - GL -893A -R I -- GL -898-A GL -918 GL -919 GL -920 - GL -921 GL -922 GL -923 I - GL -927 01-929 - GL -930 GL -931-A GL -1000T F GL -1454 I T 1612 -- 1614 GL -1616 GL -1619 1620 I T 2050 - GL -5513 - 01-5516 - GL -5518 - GL-5528/C6L - GL -5544 Class Beam Pentode Triode Triode Triode Triode Pentode Beam Power Beam Power Rectifier Pentode Pentode Beam Power Triode Rectifier Pentode Triode Triode Triode Rectifier Triode Rectifier Phototube Rectifier Rectifier Rectifier Triode Thyratron Thyratron Triode Triode Triode Triode Phototube Phototube Phototube Phototube Phototube Phototube Phototube Phototube Phototube Phototube Triode Phototube Heptode Beam Pentode Rectifier Pentode Pentode Thyratron Triode Beam Pentode Triode Thyratron Thyratron Manual* F-- -- - T I T T I T T I T T F T T T - - -- F F- F F TT- I Tube Type Class INDEX Manual* Tube Type Class ET-T1216B PAGE 7 6-58 Manual* GL -5549 GL -5550 GL -5551-A GL -5552-A GL -5553-B Triode Ignitron Ignitron Ignitron Ignitron GL -5554 GL -5555 GL -5556 GL -5557 GL -5558 Ignitron Ignitron Triode Thyratron . Rectifier GL -5559 GL -5560 GL -5561 GL -5564 GL -5581 Thyratron Thyratron Rectifier Ignitron Phototube GL -5593 5610 GL -5620 GL -5621 GL -5623 Phasitron Triode Ballast Tube Ballast Tube Ballast Tube GL -5624 GL -5625 GL -5626 GL -5627 GL -5628 Ballast Tube Rectifier Vacuum Switch Vacuum Switch Vacuum Gage GL -5629 GL -5630 GL -5632/C3.1 5636 5642 Vacuum Gage Ignitron Thyratron Five -Star Diode 5651 Glow Tube 5654 Five -Star 5654/6AK5W Service Designationt 5654/6AK5W/6096... Service Designationt 5662 Thyratron 5663 GL -5665/C16.1 5670 5670WA GL -5674 Thyratron Thyratron Five -Star Service Designationt Pentode 5686 5687 5691 5692 5693 Five -Star Twin Triode Twin Triode Twin Triode Pentode 5696 5718 5719 GL -5720 5725 Thyratron Five -Star Five -Star Thyratron Five -Star 5725/6AS6W Service Designationt 5726 Five -Star 5726/6AL5W Service Designationt 5726/6AL5W/6097 .. Service Designationt 5727 Five -Star - 5727/2D21W Service Designationt I GL -5728 Thyratron I GL -5736 Triode I GL -5740 Triode I 5749 Five -Star I 5749/6BA6W Service Designationt I 5750 Five -Star I 5750/66E6W Service Designationt I 5751 Five -Star I 5751 WA Service Designationt I GL -5762 I 5763 I GL -5779 I GL -5788 - 5814-A - 5814WA F GL -5820 - GL -5822-A - 5824 - GL -5830 -- 5840 5844 - GL -5855 - 5879 - 5881 - GL -5894 I - 5896 5899 F 5902 F GL -5948 Triode Beam Pentode Ignitron Ignitron Five -Star Service Designationt Image Orthicon Ignitron Pentode Thyratron Five -Star Twin Triode Thyratron Pentode Beam Pentode Tetrode Five -Star Five -Star Five -Star Thyratron F 5963 F 5964 - 5965 - GL -5973 F 6005 Twin Triode Twin Triode Twin Triode Rectifier Five -Star F 6005/6AQ5W Service Designationt - 6005/6AQ5W/6095. .Service Designationt F GL -6011/710 - GL-6014/C1K - GL -6019 Thyratron Thyratron Tetrode I - F - F - F - F F .. T F I F F F F .. .. F .. F F . F F F T .. F - . - .. - T F 6021 F GL -6039 F GL -6044 F 6046 F 6072 F F F ! F 6080 6087 6100/6C4WA 6111 6112 - 6134 F - 6135 6136 - 6137 F 6146 Five -Star Triode Thyratron Beam Pentode Five -Star Twin Triode Five -Star Service Designationt..... .. Five -Star Five -Star Five -Star Five -Star Five -Star Five -Star Beam Power F T - F F - F - F F - F - - * I =Industrial Manual F Five -Star and Special -Purpose Manual T =Transmitting Manual t Because of the special nature of this type, data sheets are not maintained. Refer to the applicable Armed Service specifications for ratings. ET-T1216B PAGE 8 6-58 Tube Type Class GL -6181 GL -6182 GL -6198-A 6201 6202 6203 6205 6206 6211 GL -6228 GL -6237 GL -6238 GL -6239 GL -6240 GL -6241 GL -6242 GL -6251 6265 GL -6283 GL -6299 GL -6301 GL -6346 GL -6347 GL -6348 6350 6386 6397 GL -6410 6414 GL -6442 GL -6452 6463 6485 GL -6504 GL -6509 GL -6511 GL -6512 GL -6513 GL -6514 GL -6515 6525 GL -6619 GL -6620 GL -6621 GL -6625 6660 Tetrode Tetrode Camera Tube Five -Star Five -Star Five -Star Five -Star Pentode Twin Triode Ignitron Klystron Klystron Klystron Klystron Klystron Klystron Tetrode Five -Star Tetrode Triode Reference Cavity Ignitron Ignitron Ignitron Triode Five -Star Power Pentode Magnetron Five -Star Triode Reference Cavity Twin Triode Pentode Ignitron Ignitron Ignitron Ignitron Ignitron Ignitron Ignitron Thyratron Gas -Discharge Device Gas -Discharge Device Gas -Discharge Device Klystron Pentode * I =Industrial Manual F =Five -Star and Special -Purpose Manual T =Transmitting Manual INDEX Manual* Tube Type - T T F F 6661 6662 6663 6669 6677 F 6678 F 6679 - 6680 F 6681 I GL -6787 T GL -6807 T GL -6808 T GL -6809 T 6829 T GL -6849 T GL -6855/716 T GL -6856/740 F GL -6857/740-P T GL -6858/760 T GL -6859/760-P T GL-6860/C6.1/F I GL -6878 I GL -6897 I GL -6917 - 6919 F - T F T GL -6930/635-P GL -6942 GL -6958 7036 GL -7042 T 7077 F GL -7085/356 F GL -7151 I GL -7171 I GL -7179 I GL -7180 I GL -8000 I GL -8002 I GL -8002-R I GL -8005 F T T T T F GL -8008 GL -8013-A GL -8020 9001 9002 9003 Class Pentode Pentode Twin Diode Beam Pentode Pentode Triode -Pentode Twin Triode Twin Triode Twin Triode Magnetron Thyratron Thyratron Thyratron Five -Star Image Orthicon Thyratron Thyratron Thyratron Thyratron Thyratron Thyratron Ignitron Triode Magnetron Twin Diode Rectifier Tetrode Ignitron Heptode Ignitron Triode Triode Ignitron Ignitron Ignitron Ignitron Triode Triode Triode Triode Rectifier Rectifier Rectifier Pentode Triode Pentode Manual* F F F F F F F F F - I I I F T - - I T T F T I F - T- - - I T - F F F ELECTRONIC COMPONENTS DIVISION GENERAL ELECTRIC Schenectady 5, N. Y. TABLE ETI-101AA PAGE 1 12-58 CONTENTS' NDUSTRIAL TUBE MANUAL TITLE PUBLICATION NUMBER TITLE PUBLICATION NUMBER Registration Page ET-T1043B Electronic Tube Manual Index-All Manuals ET-T1216B TABLE OF CONTENTS-GENERAL (Tabbed Divider) Table of Contents ETI-101AA INTERCHANGEABILITY CHART, BASE AND CAP DRAWINGS (Tabbed Divider) Interchangeability List. ET -T1468 Bases, Caps-Power Tubes ET -T1502 IGNITRONS (Tabbed Divider) Application Data (Including Typical Circuits) . ETI-108 Recommended Types and Selection Chart . . ET -T1507 Ignition Service Notes ET -T1470 Ignitron Accessories. ET -T1379 GL -5550 ETI -114B GL -5551-A ET-T1219A GL -5552-A ET-T1220A GL -5553-B ET-T1221A GL -5554 ET -T1129 GL -5555 ETI-1 10B GL -5564 ET -T1130 GL -5630 ETI-294A GL -5779 ET -T1376 GL -5788 ET -T1184 GL -5822-A ET -T1351 GL -6228 ET -T 1037 GL -6346 ET -T1034 GL -6347 ET -T1035 GL -6348 GL -6504 ET -T1036 ET-T1131A GL -6509 GL -6511 ET -T1132 ET-T1142A GL -6512 ET -T1133 GL -6513 ET -T1134 GL -6514 ET -T1185 GL -6515 GL -6878 ET -T1135 ET-T1284A GL -6958 ET -T1479 GL -7042 ET -T1510 GL -7151 ET -T1511 GL -7171 ET -T1512 THYRATRONS (Tabbed Divider) Application Data (Including Typical Circuits). ETI-116A Recommended Types and Selection Chart ET -T1469 THYRATRONS (Continued) GL -3C23 FG-27-A FG-97 FG-105 FG-172 GL -393-A GL -414 GL -5544 GL -5557 GL -5559 GL -5560 GL -5720 GL -5728 GL -5830 GL -5855 GL -5948 GL -6011/710 GL -6807 GL -6808 GL -6809 ET -T1475 ETI-119C ETI-126C ETI-128B ET -T1513 ET -T1476 ET-Tl 509 ETI-282 ET -T1472 EU-122C ETI-125C ETI-120B ETI-123B En -121B ET -T1139 ET -T1121 ET -T1377 ET-T1222A ET-T1222A ET-T1222A KENOTRONS (Tabbed Divider) Application Data (Including Typical Circuits). ETI-140 GL -5973 ET-T1038A PHANOTRONS (Tabbed Divider) Application Data (Including Typical Circuits). ETI-146A Recommended Types and Selection Chart ET -T1508 GL -575-A ET -T1477 GL -673 ET -T1478 GL -857-B ET -T1503 GL -869-B ET -T1504 GL 872-A E T -T1514 GL -5558 ETI-147C GL -5561 En -148C GL -8008 ETI-256A PLIOTRONS (Tabbed Divider) Application Data (Including Typical Circuits). ETI.156 GL -5556 ETI.158A MAGNETRONS (Tabbed Divider) Supersedes ETI-101Z, dated 12-57 ELECTRONIC COMPONENTS DIVISION GENERAL ELECTRIC Schenectady 5, N. Y. ETI-103 PAGE 1 MAINTENANCE AND SERVICE NOTES 4-45 TUBES This manual on G -E electronic tubes for industry may offer the maximum of service, please advise is recorded in your name below. In order that we us promptly if this information requires correction. . FS - Ge r El P c t ^ic Gomparly P. 0. EOK Par t land 7. Ore. 3 6- - The index -corner feature of the Description and or by ETI number. The first page of each DescripRating sheets enables you to locate data by tube type tion and Rating bears the following identification: Identifying Marks GL- 1 00 DESCRIPTION AND RATING ETI-100 PAGE 1 4-45 -. Tube Type Number Title Publication Number and Page Number Date In addition, the ETI number and date are shown on each page of the manual to provide complete indexing. You will receive new and revised data at various times during the subscription period. Prompt insertion of these data is vital in providing you with maximum value in the use of the technical in- formation. This service comes to you at an annual fee of $1.00. Your requests for lost or missing data sheets should state the tube type number and title or the publication [ ETI ] number. If you require only cer- fain sheets of a publication [ETI] mention the page numbers desired. Be sure to notify us of any change in your address or of the transfer of your manual to another person. The "change of address" cards included in the back of this manual are for your convenience. When corresponding with us please state the manual registration number as this will aid us in servicing your requests promptly. Notifications of changes or requests for supplementary data should be forwarded promptly to: 4-45 (4M) Filing No. 8850 TUBE SALES SECTION TUBE DIVISION ELECTRONICS DEPARTMENT GENERAL ELECTRIC COMPANY SCHENECTADY 5, N. Y. Electronics Department GENERAL ELECTRIC Schenectady, N. Y. PRICES AND ORDERING / INSTRUCTIONS ETI-1041 QUICK SELECTION CHART PAGE 1 10-50 TUBES INDUSTRIAL TYPES You will find the concise technical information and prices on these pages handy in quickly selecting the proper tube for your application. The various types of tubes are shown in tabular form by class of tube and conveniently arranged in order by key ratings and characteristics. Description and rating publication numbers for each type of tube are listed to provide you a ready reference to these data sheets included in other sections of the manual. Prices effective Oct. 1, 1950 IGNITRONS-high-peak-current, pool -cathode tubes Welding Control Types* Suggested User's Price Kva Demand MAXIMUM RATINGS Corresponding Maximum Average Anode Average Anode Current, Amps. Current, Amps. Corresponding Kva Demand Type of Cooling Shipping Weight in Lb Description and Rating GL-5550/GL-415 GL -5822** GL -5551 /FG-271 GL -5552 /FG-235-A GL -5553 /PG -258-A $50.00 143.00 80.50 121.00 265.00 300 424 600 1200 2400 12.1 20 30.2 75.6 192.0 22.4 70 56.0 140 355 100 Water 5 ETI-114B 188 Water 17 ETI-309 200 Water 12 ETI-113 400 Water 17 ETI-109A 800 Water 41 ETI-111B * Ratings are for voltages of 600 volts rms and below. Ignitor requirements for all welding -control types are 200 volts and 30 amperes. ** For Frequency Changer welding control. Power Rectifier Typest Suggested User's Price§ D -c Volts MAXIMUM CURRENT Peak Amp Average Amp Average Amp 1 Minute Type of Cooling Shipping Weight in Lb Description and Rating GL -5779 GL -5554 /FG-259-B GL -5555 /FG-238-B GL -5630 GL -506 $72.00 190.00 370.00 930.00 3000.00 125 300 600 300 1 600 6000 6000 30 900 600 1800 1200 200 900 10 150 112.5 300 225 50 150 .. . 200 1 150 400 300 50 300 Air Water Water Water Water 6 ETI-301 22 ETI-112 35 ETI-110A 44 ETI-294 170 ETI-293A t Typical ignitor requirements for power -rectifier ignitrons are 75-125 volts, 15-20 amperes. Maximum requirements are 150 volts, 40 amperes. THYRATRONS-grid-controlled gaseous -discharge rectifier tubes Type No. Suggested User's Price§ No. of Electrodes CATHODE Volts Amp ANODE Peak Peak Inv. Volts Amp Avg Amp Starting T Grid CondensedemRange Voltage Mercury C SWhiepipgihntg in Lb Description and Rating GL -5662 GL -5663 GL -884 GL -885 GL -2D21 GL -2050 FG-178-A GL -502-A FG-81-A FG-98-A FG-97 GL -5557 /FG-17 GL -627 GL -3C23 GL -393-A GL -678 FG-154 FG-27-A GL -5720 /FG-33 GL -5559 /FG-57 GL -5728 /FG-67 GL -5560 /FG-95 GL -672-A GL -5632 GL -5544 GL -5545 FG-105 $2.40 1.90 1.85 2.00 2.00 1.85 24.00 1.85 16.00 24.00 22.00 7.75 17.25 12.50 13.25 40.00 42.00 23.00 21.00 19.50 23.00 25.00 26.50 12.15 27.00 35.00 48.00 FG-172 65.00 GL -5830 /FG-41 182.00 GL -414 120.00 3 4 6.3 6.3 0.15 0.15 200 Fuse tube 500 0.060 0.020 Neg --5555--++9900* 3 3 ETI-300 ETI-284 3 6.3 0.6 350 0.300 0.075 Neg 3 ETI-136 3 2.5 1.4 350 0.300 0.075 Neg 3 ETI-137 4 6.3 0.6 1300 0.500 0.100 . -55--1-90* 4 3 6.3 0.6 1300 2.5 2.25 500 0.500 0.500 0.100 Neg 0.125 Neg -20-+50* 33 2 4 6.3 0.6 1300 1.0 0.100 Neg -50-- +90# 3 3 2.5 5.0 500 2.0 0.5 Neg -20-- +50* 2 EEBEET III----- 123323744 BCB 4 2.5 5.0 500 2.0 0.5 Neg -20--- +50* 4 ETI-127B 4 2.5 5.0 1000 2.0 0.5 Var 40-80 4 ETI-126C 3 2.5 5.0 5000 2.0 0.5 Neg 40-80 3 ETI-118C 3 3 3 2.5 6.0 2500 2.5 7.0 1250 2.5 7.0 1250 2.5 6.0 6.0 0.64 1.5 1.5 Neg Neg Neg --442005---+7+08800 1 ETI-253 3 ETI-117A 3 ETI-132 3 4 3 5.0 7.5 15000 6.0 5.0 7.0 500 10.0 5.0 4.5 1000 10.0 1.6 2.5 2.5 Neg Neg Neg -224050---+585000* 3 7 3 ETI-255A ETI-129 ETI-119C 3 5.0 4.5 1000 15.0 2.5 Pos 35-80 7 ETI-120A 3 5.0 4.5 1000 15.0 2.5 Neg 40-80 7 ETI-122C 3 5.0 4.5 1000 15.0 2.5 Var 40-80 3 ETI-123B 4 5 5.0 1 t55 4.5 5.0 1000 15.0 1000 40.0 2.5 Var 0.5 Var 40-80 1 7 ETI-125C 4 5.0 5.0 2500 40.0 3.2 Neg 0088000 445555 --____ 7: 1% ETI-254A 3 2.5 9.0 1250 30.0 2.5 Neg 2 ETI-292 3 3 2.5 12.0 1500 40.0 2.5 21.0 1500 80.0 3.2 6.4 Neg Neg _55-+70* 2 3 ETI-282 ETI-275B 1 5.0 10.0 2500 40.0 6.4 Var 4 15.5 11.0 750 77.0 2.5 Var t 15.0 10.0 10000 16.0 4.0 Var J 5.0 10.0 2000 40.0 6.4 Var 4 1 *5.5 11.0 750 77.0 2.5 Var 3 5.0 20.0 10000 75.0 12.5 Neg 4300--9850 25-50 40-80 3400--9655.1 7 ETI-128B 7 ETI-130A 8 ETI-121B 4 5.0 20.0 2000 100.0 12.5 Neg 40-80 9 ETI-133C * These tubes are inert -gas -filled, and the temperature ratings are expressed in terms of the ambient temperature range over wh'ch the tubes will operate. t These ratings apply only when the tube is used for ignitor firing. * These ratings apply only when the tube is used in thyratron welding -control service. # Ambient temperature Supersedes ETI-104H dated 10.49 E T1-1041 PAGE 2 10-50 KENOTRONS-h gh-vacuum rectifier tubes Type No. Suggested User's Price§ No. of Electrodes CATHODE Volts Amp PLATE Peak Volts Peak Amp Shipping Weight in Lb Description and Rating FP -400 $24.00 2 GL -2B23 21.00 2 GL -5741 /FP -85-A 75.00 2 GL -3824 11.75 2 GL -8020 22.00 2 GL -411 225.00 2 GL -5625 /KC -4 225.00 2 4.0 2.25 100 0.025 3 6.3 0.3 150 0.030 3 10.0 5.0 20000 0.100 3 1 2.5 1 5.0 3 3 20000 20000 0.150 0.300 J 3 5.0 5.8d 6.0 6.0 40000 12500A 0.750 2.00A f 8 10 14.5 100000 0.3 9 20 24.5 150000 1.00 9 A Surge -limiting diode operation. PHANOTRONS-gaseous-discharge rectifier tubes ETI-143 ETI-286 ETI-142 ETI-280 ETI-145 ETI-144A ETI-141B Type No. Suggested u se r's Price§ No. of Electrodes CATHODE Volts Amp Peak Volts ANODE Peak Amp Avg Amp Temp Range Shipping Condensed Weight Mercury C in Lb Description and Rating GL -866-A $ 1.95 2 FG-190 29.00 3 GL -872-A 8.20 2 GL -8008 8.20 2 GL -575-A 21.00 2 GL -673 21.00 2 GL -5558 /FG-32 14.00 2 GL -869-B 132.00 2 FG-280 56.00 2 GL -5561 /FG-104 38.00 2 GL -857-B 209.00 2 FG-166 150.00 2 Quadrature operation. 2.5 5 10000 2.5 12 175 5.0 7.5 10000 5.0 7.5 10000 5.0 10 15000 5.0 10 15000 5.0 4.5 5000 5.0 19 5 20000 5.0 10 5.0 10 5.0 30 200015000$ 3000 22000 2.5 100 1500 1 5 5 5 6 6 15 0.25 1.25 -2205--+6050* 1.25 20-60 1.25 20-60 1.5 20-50 1.5 20-60 2.5 30-60 3 3 8 8 3 3 3 10 2.5 1 f 30-40 7 4015: 6.45.0$ 40-80 3 40 6.4 40-80 20 5.0 30-40 3 10 40$ 10.0$ 75 20 20-60 6 ETI-153A ETI-150 ETI-155B ETI-256A ETI-244C ETI-2438 ETI-147B ETI-1548 ETI-151B ETI-1488 ETI-152 ETI-149A PLIOTRONS-grid-controlled high -vacuum tubes Control Types GL -5691 GL -5692 GL -5693 GL -5743 /PJ-21 GL -5742 /PJ-7 GL -5556 /PJ-8 Spec. Purpose GL -5740 /FP -54 GL -5674 GL -5739 /FP -62 Therapy Types FP -285 FP -265 Power Triodes GL -5610 GL -807 GL -810 GL -592 GL -833-A GL -1000-T GL -851 GL -8002 GL -8002-R GL -5549 GL -473 GL -889-A GL -889R -A GL -891 GL -891-R GL -207 GL -892 GL -892-R GL -893-A GL -893A -R GL -880 GL -895 GL -895-R GL -862-A Suggested User's Prices No. of Electrodes CATHODE Volts Amp $ 7.75 7.75 6.40 12.50 13.00 12.00 6 6.3 0.6 6 6.3 0.6 5 6.3 0.3 3 4.5 1.1 3 4.5 1.1 3 4.5 1.1 66.00 77.00 44.00 4 2.5 0.09 6 3.8 0.09 3 4.5 1.48 20.00 36.00 3 10 3 10 for high -frequency heating 1.98 2.50 14.50 33.00 49.50 125.00 300.00 132.00 160.00 275.00 144.00 210.50 285.00 223.00 362.00 242.00 223.00 362.00 630.00 1150.00 483.00 866.00 1180.00 1150.00 3 6.3 5 6.3 3 10 3 10 3 10 3 7.5 3 11 3 16 3 16 3 12.6 3 6.0 3 11 3 11 3 22 3 22 3 22 3 22 3 22 3 20 3 20 3 12.6 3 19 3 19 3 33 3.25 5.20 0.15 0.9 4.5 5.0 10.0 17.0 15.5 38.0 38.0 57.0 60.0 120.0 120.0 60.0 60.0 51.0 60.0 60.0 183.0 183.0 320.0 138.0 138.0 207.0 PLATE Max Volts Max Amp 275 0.010 275 0.015 300 0.010 350 0.019 350 0.040 350 0.040 Max Dis Watts 1.0 1.75 2.0 7.5 10 10 Mu 80 22 3 30 8.5 6 10 112.5 1350 1500 300 600 2000 3500 4000 7500 2500 3500 3500 8500 5000 8500 8500 12000 10000 15000 15000 12500 20000 20000 15000 ,17000 17000 20000 0.00015 0.0001 0.010 0.200 0.200 0.017 0.10 0.25 0.25 0.50 0.75 1.00 1.00 1.00 1.25 1.40 2.00 2.00 2.00 2.00 2.00 2.00 2.00 4.00 4.00 4.50 9.00 9.00 10.00 Low -grid -current measurement tube Low -grid -current measurement tube For gas -pressure measurements Max Max Input Dis Mu Watts Watts 270 100 12 350 160 75 Max Dis Watts Type Mu of Cooling 3 25 125 200 400 1000 750 1200 1200 4000 2500 5000 5000 6000 4000 10000 10000 4000 20000 20000 20000 40000 20000 100000 14 8 36 24 Air 35 35 Air 20.5 2.15 Water 21.5 Air 23 Air 22 Air 21 Water 21 Air 8 Water 8 Air 20 Water 50 Water 50 Air 34.5 Water 34.5 Air 20 Water 37 Water 37 45 Water Shipping Description Weight and in Lb Rating 3 ETI-297 3 ETI-298 3 ETI-299 3 ETI-159A 3 ETI-157A 3 ETI-158 7 ETI-160A 7 ETI-284 9 ETI-161A Shipping Weight in Lb 6 6 Shipping Weight in Lb 2 3 8 8 9 8 5 26 7 8 52 10 10 10 25 290 21 85 455 90 Description and Rating ETI-164 ETI-163 Description and Rating ETI-291 ETI-165 ETI-166A ETT-245B ETI-167A ETI-314 ETI-168 ETI-175B ETI-250A ETI-283 ETI-281 ETI-171 ETI-249 ETI-172A ETI-246A ETI-162A ETI-173A ETI-247A ETI-174A ETI-248 ETI-170B ETI-251B. ETI-252B ETI-169 GLOW TUBES -cold -cathode tubes for use as voltage regulators ETI-1041 PAGE 3 10-50 Type No. Suggested User's Price§ Starting Supply Operating Voltage Voltage, D -c Maintained, D -c Min Approx OPERATING CURRENT, MILLIAMPERES MM Max Shipping Weight in Lb Description and Rating GL -0A3 GL -083 GL -874 GL -0C3 GL -0B2 GL -0D3 GL -0A2 $1.35 105 75 1.20 125 90 3.10 125 90 1.35 133 105 3.55 133 108 1.30 185 150 3.20 185 150 PHOTOTUBES-light-sensitive tubes 5 40 3 ETI-176A 10 30 3 ETI-176A 10 50 3 ETI-176A 5 40 3 ETI-176A 5 30 3 ETI-306 5 40 3 ETI-176A 5 30 3 ETI-305 Type No. Saggested User's Price§ Gas or Vacuum Spectral Response RMA Standard Anode Volts Sensitivity in Microamperes per Lumen Window Dimensions in Inches Max Amb Temp. C GL -1P21 $50.00 Vacuum S4 1250 i6eit1Ms 75 GL -1P29 /FJ-401 2.95 Gas S3 100 13i6xl% 100 GL -1P37 2.85 Gas S4 100 120 f),§x1Y 7$ GL -1P39 GL -1P40 1.75 Vacuum S4 1.85 Gas Si 250 45 90 135 Is 54 xl. pl's %x1 75 100 PJ-22 2.50 Vacuum S1 500 20 1.1/18x1% 100 FJ-405 (Use GL -935) GL -441 GL -868 /PJ-23 4.50 Vacuum S4 2.50 Gas SI 250 45 100 50 i t 67,1% it 8,,i% 50 100 GL -917 3.50 Vacuum Si 500 20 I 6x1§4 100 GL -918 3.10 Gas Si 100 110 14(0(15/ 100 GL -919 3.50 Vacuum Si 500 20 1%i6,i1N 100 GL -920 GL -921 4.15 Gas 2.05 Gas Si Si 100 90 75 135 Rix/lx(e%ach unit 100 100 GL -922 GL -923 1.95 Vacuum Si 2.05 Gas Si 500 20 90 135 %1 yxi7,,,v 100 100 GL -927 GL -929 2.50 Gas 51 1.50 Vacuum SI 90 125 250 45 1714466xpg 100 50 GL -930 1.65 Gas Si 90 135 1Ksx% 100 GL -931-A 9.75 Vacuum S4 1250 2.0 amperes 1 szi 50 GL -935 7.80 Vacuum S5 250 30 Jeri.% 75 GL -5581 2.25 Gas S4 100 135 BA ,, 1 346 75 BALLAST TUBES -resistor -type tubes used to maintain a constant average current Shipping Description Weight and in Lb Rating 3 ETI-315 3 ETI-178 A 3 ETI-289 3 ETI-295 3 ETI-290 3 ETI-179 3 ETI-181 3 ETI-182 A 3 ETI-183 3 ETI-184 3 ETI-185 3 ETI-186 3 ETI-187 3 ETI-188 3 ETI-189 3 ETI-190 3 ETI-191 3 ETI-192 3 ETI-193A 3 ETI-270 3 ETI-295 Type No. GL -5620 /FB-50 GL -5622 /B25 GL -5623/B47 GL -5624/B-46 (11.-56711R-5 Suggested User's Price§ $13.00 11.00 12.00 12.00 12.00 VOLTS MM Max 5 8 7 16 8 18 8 18 15 21 AMPERES Min Max 0.225 1.07 2.05 2.70 0.95 0.275 1.16 2.35 3.25 1.01 Shipping Weight in Lb 3 3 3 3 3 Description and Rating ETI-194A ETI-194A ETI-194A ETI-194A ETI-194A VACUUM GAGES -to measure gas pressure Type No. GL-5628/FA-13 GL -5629 /FA -14 Suggested User's Prices $23.50 19.00 Volts 6 6 Range in Microns 0-600 CI Shipping Weight in Lb 3 3 Description and Rating ETI-195A ETI-195A *Used with GL-5628/FA-13 to compensate for temperature and voltage changes. VACUUM SWITCHES -single -pole, double -throw Type No. Suggested User's Price Max Hold -off Voltage, Peak Max Interrupting Rating, Amperes GL -5627 /FA -6 $24.00 700 10 GL-5626/FA-15 20.00 3000 10 GL -1521 15.50 7500 15 Shipping Weight in Lb 3 3 3 Description and Rating ETI-197A ETI-198A ETI-287 VACUUM CAPACITORS Type No. Suggested User's Price§ Peak Voltage, Volts, A -c D -c or R -f Capacitance, 5% Micromicrofarads Ambient Temperature Min. Max Net Weight in Oz Approx Shipping Weight in Lb Approx Description and Rating GL -1L21 $12.50 7500 12 GL -1L22 26.00 16000 25 GL -1L23 26.00 16000 50 GL -1L24 49.50 16000 100 GL -1L25 14.00 16000 12 GL -1L31 14.00 16000 6 GL -1L32 12.50 7500 6 GL -1L33 30.00 7500 100 GL -1L36 12.50 7500 25 GL -1L38 22.00 7500 50 -40 -40 +65 4 +65 6 -40 --4400 +65 6 +65 8 +65 6 -40 +65 6 -40 +65 4 -40 -40 +65 6 +65 4 -40 +65 4 1 ETI-262 1 ETI-263 1 ETI-264 1 ETI-265 1 ETI-266 1 ETI-307 1 ETI-308 1 ETI-267 1 ETI-268 1 ETI-269 § As prices shown on these pages are only corrected when regular supplements are issued, they snould not be used for quotation without further check. Prices and other data subject to change without notice FOR RADIO APPLICATIONS* SUGGESTED USER'S PRICES AND CONCISE TUBES TECHNICAL DATA ETI-105G PAGE 1 10-50 HIGH -VACUUM TYPES Type No. Suggested User's Price/ No. of Electrodes CATHODE Volts Amp Max Volts PLATE MAX. FREQ. MC. Max Max Max Input, Dissi- Max Amp Watts pation. Plate Watts Input @50% Max Plate Input Mu Gm Bulletin No. GL -2C40 GL -2C43 GL -2E24 GL -2E26 $29.00 29.00 5.10 3.85 GL -2E30 2.45 GL -4D21/ 4-125A 27.50 GL -5C24 40.00 GL -35T 9.50 GL -100TH 16.50 GL -146 24.00 GL -152 27.00 GL -159 145.00 GL -169 120.00 GL -203-A 13.75 GL -204-A 115.00 GL -211 13.75 GL -242-C 13.75 GL -800 11.50 GL -801-A 4.30 GL -802 4.75 GL -803 GL -805 GL -806 24.25 13.50 34.25 GL -809 4.00 GL -811-A 4.05 GL -812-A 4.05 GL -813 16.00 GL -814 14.25 GL -815 6.90 GL -826 GL -828 12.50 13.75 GL -829-B GL -830-B GL -832-A GL -835 GL -837 GL -838 GL -842 GL -843 GL -845 GL -849 GL -1613 GL -1614 GL -1619 GL -1623 GL -1624 16.25 11.50 12.90 19.50 5.80 13.75 4.05 2.60 13.75 138.00 2.65 2.05 2.50 4.05 4.00 3 6.3 0.75 3 6.3 0.90 5 6.3 0.65 5 6.3 0.80 5 6.0 0.65 4 5.0 6.5 3 10.0 5.2 3 5.0 4.0 3 5.0 6.3 3 10 3.25 3 10 3.25 3 10 9.60 3 10 9.60 3 10 3.25 3 11 3.85 3 10 3.25 3 10 3.25 3 7.5 3.25 3 7.5 1.25 5 6.3* 0.90 5 10 5.00 3 10 3.25 3 5 10.0 3 6.3 2.50 3 6.3 4.00 3 6.3 4.00 5 10.0 5.00 5 10.0 3.25 5 *6.3t 1.6t 3 7.5 4.0 5 10.0 3.25 *5t 3 5 3 5 3 3 3 3 3 5 5 4 3 5 6.3t 10.0 *6.3t 10.0 12.6* 10.0 7.5 2.5* 10.0 11.0 6.3* 6.3* 2.5 6.3 2.5 2.25t 2.0 1.6t 3.25 0.70 3.25 1.25 2.50 3.25 5.00 0.70 0.90 2.0 2.5 2.0 500 500 600 500 600 250 3000 1750 2000 3000 1500 1500 2000 2000 1250 2500 1250 1250 1250 600 500 600 2000 1500 3000 3300 750 1000 1250 1500 1250 1500 2000 2250 1250 1500 400 500 1000 1250 1500 750 1000 750 1250 500 1250 425 450 1250 2500 350 375 400 750 600 0.025 4.0 0.040 16.7 0.085 40 0.075 30 0.075 40 0.060 15 0.225 500 0.107 250 0.150 300 0.225 675 0.200 300 0.200 300 0.400 800 0.400 800 0.175 220 0.275 690 0.175 220 0.150 188 0.080 100 0.070 42 0.060 25 0.060 33 0.175 350 0.210 315 0.200 600 0.300 1000 0.100 75 0.100 100 0.175 175 0.175 260 0.175 175 0.175 260 0.180 360 0.225 500 0.150 180 0.150 225 0.150 60 0.150 75 0.125 125 0.160 200 0.180 270 0.240 120 0.150 150 0.090 36 0.175 220 0.080 32 0.175 220 0.028 0.040 0.175 0.350 875 0.050 17.5 0.110 35 0.075 30 0.100 75 0.090 54 6.5 3370 6.7 3370 13.5 125 10 125 13.5 10 165 125 120 160 50 100 100 125 15 125 15 250 15 250 15 100 15 250 3 100 15 100 6 35 60 20 60 10 30 13 125 20 125 30 150 30 225 25 60 30 45 30 65 45 30 65 100 30 125 50 30 65 20 125 25 60 250 70 30 80 40 200 60 15 15 200 100 20 12 20 160 30 12 15 6 75 400 3 10 45 2f 80 15 45 25 60 25 60 36 4850 ETX-123 48 8000 ETX-124 175 @ 68% 7.5 3200 ETX-223 6.5 3500 ETX-224 ETX-229A 250 @ 56% 60 60 35 35 80 30 80 30 180 @ 55% 120 100 ® 55% 6.2 2450 8 5500 39 2800 40 5500 75 25 20 85 25 . 23 12 12.5 15 8 2250 ETX-225 ETX-217 ETX-216 ETX-222 ETX-127 ETX-128 ETX-129 ETX-130 ETX-131 ETX-132 ETX-134A ETX-136A ETX-142 ETX-143 ETX-144 70 4000 ETX-145 80 ETX-146 100 12.6 . ETX-147 120 50 ETX-149 100 160 ETX-151A 100 @ 55% 29 ETX-152A 120 @ 50% 8.5 3750 ETX-153 C 75 @ 64% 3300 ETX-154 200 @ 70% 6.5 4000 ETX-155 300 @ 80% 31 ETX-157A 75 @ 65% 2700 ETX-158 250 @ 89% 60 @ 54% 250 @ 89% 100 60 @ 62% 120 30 @ 80% 30 90 @ 85% 120 @ 75% 90 @ 77% 115 125 55% 9 8500 25 7 3500 12 3600 3400 3 1250 7.7 . 5 . 19 2500 6050 4500 20 . 4000 ETX-159 ETX-160 ETX-161 ETX-163 ETX-165 ETX-166 ETX-167 ETX-168 ETX-169 ETX-170 ETX-191 ETX-192A ETX-19IA ETX-195A ETX-196 * Types shown are not included elsewhere in the Industrial Tube Manual. I As prices shown on these pages are only corrected when regular supplements are issued, they should not be used for quotation without further check. Prices and other data subject to change without notice Prices effective Oct. 1, 1950 Supersedes ETI-105F dated, 2-48 ET! -105G PAGE 2 10-50 HIGH -VACUUM TYPES (Cont'd) Type No. Suggested User's Price CATHODE o. of El e c- trodes Volts Amp Max Volts PLATE Max Max Max Dissi- Amp Watts pation, Watts MAX. FREQ. MC. qs, Max Pl4te Input @M5a0x% Plate Input Mu Gm Bulletin No.lletin GL -1625 $2.65 GL -5654 6.00 GL -5670 7.50 GL -5686 7.00 GL -5725 6.00 GL -5726 4.50 GL -5749 4.50 GL -5750 4.50 GL -5751 5.65 GL -5814 6.00 GL -5824 GL -8000 GL -8005 3.35 14.50 7.40 GL -8012-A 15.50 GL -8025-A 10.00 5 5 6 5 5 4 5 6 6 6 5 12.6* 6.3* 6.3* 6.3* 6.3* 6.3* 6.3* 6.3* 6.3* 12.6* 6.3* 12.6* 25.0* 0.450 0.175 0.350 0.350 0.175 0.300 0.300 0.300 0.350 0.175 0.350 0.175 0.300 600 0.100 750 0.100 180 0.007 300 0.018 250 0.040 180 0.0052 330 0.054 300 0.011 300 0.0026 330 0.0011 330 0.010 200 0.069 60 ---75 ---- 25 30 1.7 1.5 2.7 1.7 3.0 1.0 1.1 3.03t 12.5 60 -- - 125 @ 55% -8 3-----5 6000 ETX-197 -----5000 5500 ETX-241 ETX-233 ETX-244 ETX-258 ETX-257 ETX-261 ETX-262 70 1200 ETX-245 -17 2200 ETX-24E 5000 ETX-240 3 10.0 4.500 2500 0.300 750 175 30 100 16.5 . . ETX-215 3 10.0 3.250 1250 0.200 240 75 60 100 @ 60% 20 .. ETX-210 1500 0.200 300 85 3 6.3 2.000 1000 0.080 50 40 500 600 @ 63%0 18 .... ETX-204 3 6.3 1.920 1000 0.080 50 30 500 600 @ 70% 18 .. .. ETX-214 1000 0.080 75 40 HIGH -VACUUM, FORCED -AIR-COOLED TYPES Type No. CATHODE Suggested No. of User's Elec- Price trodes Volts Amp GL -2C39 GL -3C22 GL-4X150A GL-4-250A/5D22 GL -5D24 $41.50 80.00 48.00 37.50 37.50 GL -7C29 GL -7D21 GL -9C22 GL -1000T GL -5513 GL -5518 GL -5588 GL -5648 115.00 285.00 1225.00 125.00 275.00 495.00 110.00 41.50 3 6.3* 1.1 3 6.3* 2.0 4 6.0* 2.6 4 5 14.5 4 5.0 14.1 3 10.5 28.0 4 6.3 30.0 3 19.5 415 3 7.5 17.0 3 6.3 32.0 3 6.3 250.0 3 6.3 2.5 3 6.3 1.1 PLATE MAX. FREQ. MC. Max Max @50% Max Max Plate Dissi- Max Max Volts Amp Input, pation, Plate Plate Watts Watts Input Input Mu Bulletin No. ----- 350 0.045 15.8 1000 0.150 150 1250 0.250 4000 0.350 3500 0.350 600 4000 0.350 1000 3000 0.400 1200 4000 1.0 3000 17000 8.0 100000 7500 0.750 4000 4000 1.0 3600 7500 2.0 12000 1000 0.300 250 1000 1.00 50 4.8 500 125 1000 150 500 250 75 200 85 250 500 110 1200 110 20000 5 1000 50 1200 220 4000 110 200 1200 15 2500 100 40 5 120@62% 5.1 6.4 29 25 @70 % 41 87 22 100 ETX-122 ETX-126 ETX-237 ETX- 236 ETX-226 ETX-218 ETX-219A ETX-212 ETX-243 ETX-220A ETX-221A ETX-239 ETX-231 HIGH -VACUUM, WATER-COOLED TYPES GL -8D21 GL -9C21 GL -9C24 GL -858 GL -898-A** GL -8009 $1300.00 866.00 550.00 500.00 1150.00 816.00 6 3.2 125 6000 2.0 10000 6000 300 5 3 19.5 415 17000 9.0 150000 40000 15 25 670 % 40 3 6.3 240 6500 2.0 12000 5000 220 21 3 22 52.0 20000 2.00 40000 20000 1.5 40 42 3 16.5ft 70.0tf 20000 10.00 200000 100000 1.6 45 3 12.6 320 10500 6.00 60000 20000 25 100 20 ETX- 242 ET X-211 A ETX-213 ETX-173A ETX-190 ETX-203 GASKETS FOR WATER-COOLED TYPES Cat. No. Suggested User's Price Used on Tube Type Cat. No. Suggested User's Price Used on Tube Type 5182028P1 5182028P2 5182028P3 $1.18 .96 .20 GL -862-A, GL -880, GL -898-A GL -858, GL -893-A GL -207, GL -891, GL -892 5182028P8 5182028P10 5182028P11 $ .42 .20 1.18 GL -889-A GL -8002 GL -8009 Figures in bold type are ICAS ratings. * Heater -type cathode. ** Credit for return, prepaid, to Schenectady -carton $5.00, tube $10.00. t Parallel operation. if Single- or three-phase filament. Voltage is per strand, current is per strand. cp Maximum permissible percentage of only maximum plate voltage, the minimum plate input may be 100 per cent of its rated value. MERCURY-VAPOR RECTIFIERS Type No. Suggested User's Price No. of Electrodes CATHODE Volts Amp Max Peak Inverse Volts GL -266-B $209.00 2 5 30 22000 GL -816 1.65 2 GL -870-A 1300.00 2 HIGH -VACUUM RECTIFIERS 2.5 2.0 7500 5 65.0 16000 Type No. Sug- a-Uesseter'ds Price No. of CATHODE Electrodes Volts Amp PLATE Max Inv. Max Average Volts I) Amp Voltage Drop Volts Average Dissina ti.on Watts GL -2B22 $21.00 2 GL -217-C 21.50 2 GL -836 9.00 2 GL -1616 8.65 2 GL -1641 2.75 3 GL -8013-A 10.30 2 * Heater -type cathode. Quadrature operation. 6.3 10 2.5* 2.5 5.0 2.5 0.75 100 2.35 7500 5.0 5000 5.0 5500 3.0 2120 5.0 40000 0.7 0.600 1.0 0.800 0.250 0.150 0.25 0.13 0.020 0.020 210 45 75 61 PHASITRON Type No. Suggested User's Price No. of Electrodes CATHODE Volts Amp Anode Volts Deflector Volts RF Output, Volts GL -2H21 $90.00 10 6.3 0.30 300 100 4 GL -5593 77.00 10 6.3 0.30 300 100 4 Avg. Plate Amp 5.0 10.0¶ 0.125 75.0 . Frequency for Max Rating, Kc 500 250 ETI-105G PAGE 3 10-50 Bulletin No. ETX-137 ETX-156 ETX-177 Bulletin No. ETX-232 ETX-135 ETX-164 ETX-193 ETX-199 ETX-205 Bulletin No. ETX-125 ETX-230 TELEVISION CAMERA TUBES IMAGE ORTHICONS Type Suggested User's Price GL -5820 GL -5826 $1200.00 1300.00 CATHODE Voltage Current Amp 6.3 0.6 6.3 0.6 Anode Voltage 1500 1500 Photocathode Voltage Image Size Inches Bulletin No. -550 -550 1.6 Diagonal ETX-259 1.6 Diagonal ETX-260 TR, A-TR, AND PRE-TR TUBES -GAS SWITCHING TUBES FOR AUTOMATIC SWITCHING SERVICE IN PULSED MICROWAVE CIRCUITS TR Type No. Suggested User's Price Frequency Range Megacycles Max. Transmitter Power -Average Watts Spike Leakage Energy per Pulse -Ergs Flat Leakage Power Milliwatts Bulletin No. GL -1B63 -A A-TR Type No. $87.00 8940-9575 Frequency Range Megacycles 250 Equivalent Conductance 0.1 Minimum Firing Power 30 Loaded Q ETX-256 GL -1B35 $18.00 9000-9600 0.04 GL -1B37 21.00 8500-9000 0.04 GL -1B44 71.00 2680-2830 0.03 GL -1B56 71.00 2783-2922 0.03 PRE-TR Type No. 5 4 ETX-251 5 4 ETX-252 20 4 ETX-254 20 4 ETX-255 GL -1B38 $50.00 2700-2910 1000 Max. Leakage Energy = 1.3 x 10-4 Joules ETX-253 CATHODE-RAY TUBES -FOR MEASUREMENT USE Type No. Suggested User's Price Screen Diam, Minimum, Inches HEATER Volts Amp 2BP1 3KP1 3MP1 5UP1 $9.60 14.50 14.75 17.75 6.3 0.6 6.3 0.6 6.3 0.6 6.3 0.6 Screen Fluorescence Focusing and Deflection Green Green Green Green Electrostatic Electrostatic Electrostatic Electrostatic High - voltage Electrode, Max Volts 2500 2500 2500 2500 Bulletin No. ETI-310 ETI-311 ETI-313 ETI-312 Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 10-50 (11M) RECEIVING TYPES TUBES LIST PRICE ETI-106C PAGE 1 4-48 The G -E electronic receiving tubes listed below industrial applications. Information on other re include only those types most commonly used in ceiving type tubes will be furnished upon request. Type of Tube List Price* Type of Tube 1D8GT 1F4 1LA4 1LN5 1N5GT/G 1R5 1S4 1S5 1T4 1V 2A3 3Q4 3S4 5T4 5U4G 5V4G 5W4GT 5Y3GT 5Z3 5Z4 6A6 6AC7/1852 6AF6G 6AG7 6B7 6C5GT 6C8G 6D6 $3.20 2.20 2.65 2.65 1.80 1.80 2.20 1.65 1.80 1.80 2.65 1.80 1.80 3.20 1.35 2.20 1.25 .95 1.50 2.20 2.20 2.65 2.20 2.65 2.65 1.50 2.65 1.50 6E5 6F6GT 6F8G 6G6G 6H6GT 6J5GT 6J7GT 6K6GT 6K7GT 6K8GT 6L6G 6L7G 6N7GT 6R7GT 6SA7GT 6SC7 6SF5GT 6SG7 6SH7 6SJ7GT 6SK7GT 6SL7GT 6SN7GT 6SQ7GT 6V6GT 6X5GT 6Y6G 7C7 All prices include excise tax. All prices subject to change without notice List Price* $1.80 1.50 2.65 2.20 1.50 1.35 1.80 1.35 1.50 1.80 2.65 2.65 2.20 1.80 1.50 1.80 1.80 1.80 1.80 1.50 1.50 2.20 2.00 1.35 1.80 1.35 2.20 1.80 Type of Tube 7K7 10 12A7 12J5GT 12SJ7GT 12SL7GT 12SN7GT 25B6G 25L6GT 25Z5 25Z6GT 30 35/51 37 42 43 45 46 56 57 80 83 85 117N7GT 117P7GT List Price* $2.65 3.90 2.65 1.35 1.50 2.20 2.00 3.90 1.50 1.35 1.35 1.80 1.80 1.50 1.50 1.50 1.50 2.20 1.50 1.80 1.05 2.20 1.80 3.55 3.55 F.O.B. delivered destination in minimum quantities of 50 in one shipment. Electronics Department GENERAL ELECTRIC Schenectady, N. Y. Supersedes ETI-106B dated 70-47 WHERE TO BUY ETI-107 PAGE 1 4-45 TUBES G -E ELECTRONIC TUBES Send your electronic tube orders, requests for quotations or for delivery estimates to your nearest G -E office, distributor or dealer. These G -E electronic tube outlets are located strategically throughout the United States and are ready to serve you. Prompt attention will be given to your orders and requests by: Name BUSINESS ADDRESS FIRM STREET CITY STATE TELEPHONE HOME ADDRESS STREET. STATE TELEPHONE *If not available on emergency calls ask for: 1-46 (3M) Filing No. 8850 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. INTERCHANGEABILITY LIST Industrial Tubes This listing includes those types for which the General Electric Company has either a direct replacement or a similar type comparable in capabilities and application. ET -T1468 Page 1 1 2-57 TGRA-WL-17 Type No. Class Manufacturer Direct G -E Replacement Type G -E Similar Type Type No. Class Manufacturer TGRA R TGRB R CE -1 (A -D) P EL -C1 B EL -C1 B/A IH GL -575-A AX -3B28 R A IH GL -872-A .3B28/6277 R T CE GL -868 3C23 T GE, RCA, UE EL GL -3C23 NL-3C23 T NL EL GL -3C23 WL-3C23 T WL EL -C1 J/A EL GL -3C23 EL-Cl K GL -1 L21 EL GL-6014/C1K VC GE GL -1L21 CE -4 P 4B32 R GL -1 L24 GL -1 L25 VC GE GL -1L24 VC GE GL -1L25 CE -5 (A -D) P GL-5C21/C6J T EL-C6J T GL -1L31 GL -1 L32 GL -1 L33 GL -1 L36 GL -1 L38 VC GE GL -1L31 VC GE GL -1L32 VC GE GL -1L33 VC GE GL -1L36 VC GE GL -1L38 C61/5C21 T EL-C6J/A T C6J-A/5685 T EL-C6J/F T CE GE, CH CE GE EL RCA EL RCA EL 1 P21 1P32 1P39 1 P40 2-1500 CE -2 (A -D) 2 B4 GL -2B23 2D21 WL-2D21 EL -C31 C3J/5632 EL-C3J/A 3B24 3B28 P GE, RCA GL -1P21 P CE GL -927 P GE, RCA, S GL -1P39 P GE, RCA GL -1P40 R EM P CE T D 885 R GE GL -2623 GE, A, CH, NU, 2D21 RCA WL 2D21 EL-C6J/K T EL-C6J/KF T EL-C6J/KL T GL -8020 EL-C6J/L T EL-C6L T GL -930, EL -6B R GL -1 P40 605-G T CE -13 P NL-14 T EL-C16J T C16J/5665 T EL GL-5632/C3J RCA GL-5632/C3J 17 T T EL GL -5632/ DR -17 T C3J FG-17 T R GE, RK GL -3B24 TT -17 T R CH, RCA, UE GL -866-A WL-17 T EL EL EL EL EL EL D CE NL EL RCA CH GES A, NU T WL * Minor dimensional and grid voltage differences exist which will not affect interchangeability in the majority of circuits. f Minor dimensional differences which will not affect interchangeability in the majority of circuits. Direct G -E Replacement Type GL -866-A GL -866-A GL -3C23 GL -3C23 GL -3C23 G -E Similar Type GL -4332 GL-5C21/C6J GL -6807* GL -923 GL -927 GL-5C21/C6J GL -6807* GL -6807 GL -6860/ C6J/F GL -6807t GL -68081 GL -68091 GL -6809 GL-5528/C6L GL -5561 884 GL-5665/C16J GL-5665/C16J GL -868 GL -5557 GL -5557 GL -5557 GL -5557 GL -5557 GL -5557 MANUFACTURER'S IDENTIFICATION A-AMPEREX ELECTRONIC CORPORATION CE-CONTINENTAL ELECTRIC COMPANY (CETRON) CH-CHATHAM ELECTRONICS D-ALLEN B. DuMONT LABORATORIES, INCORPORATED EE-ELECTRONIC ENTERPRISES, INCORPORATED EL-ELECTRONS, INCORPORATED EM-EITEL-McCULLOUGH, INCORPORATED (EIMAC) F-FEDERAL TELEPHONE AND RADIO COMPANY GE-GENERAL ELECTRIC COMPANY GES-GENERAL ELECTRONICS, INCORPORATED IH-INDUCTION HEATING CORPORATION KU-KUTHE LABORATORIES ML-MACHLETT LABORATORIES, INCORPORATED NL-NATIONAL ELECTRONICS, INCORPORATED NU-NATIONAL UNION ELECTRIC CORPORATION R-THE RAULAND CORPORATION RCA-RADIO CORPORATION OF AMERICA RK-RAYTHEON MANUFACTURING COMPANY S-SYLVANIA ELECTRIC PRODUCTS, INCORPORATED T-TAYLOR TUBES, INCORPORATED UE-UNITED ELECTRONICS COMPANY WE-WESTERN ELECTRIC WL-WESTINGHOUSE ELECTRIC CORPORATION WT-WELTRONIC COMPANY TUBE CLASSIFICATION B-BALLAST I-IGNITRON P-PHOTOTUBE R-RECTIFIER RVG-RESISTANCE VACUUM GAGE T-THY RAT RON VC-VACUUM CAPACITOR VS-VACUUM SWITCH GENERAL ELECTRIC Supersedes ET-TI218 dated 10-55 ET-Tl 468 Page 2 1 2-57 CE-20-ML-315A INTERCHANGEABILITY LIST Type No. Class Manufacturer Direct G -E Replacement Type G -E Similar Type Type No. Class Manufacturer Direct G -E Replacement Type G -E Similar Type CE -20 P CE -21 (A -D) P RX-21A R CE -23 (A -D) P CE -25 (A -D) P CE GL -927 CE GL -920 EM CE GL -923 CE GL -927 WT210-0008 1I R WT210-0015 If T GL -872-A WT210-0017111 T WT210-0027 11 R WT210-0038 11 T WT GL -866-A WT GL -5557 WT GL -6856/740 WT GL -872-A WT FG-172 CE -29 (A -D) P CE -30 (A -D) P CE -31V P FG-32 R WL-32 R CE GL -929 WT210-0043 111 T CE GL -930 WT210-0044 11 R CE GL -919 WT210-0054 11 T CE GL -5558 WT210-0056 1I T WL GL -5558 WT210-005711 T WT GL-5632/C3J WT GL -575-A WT GL -5830 WT GL -5559 WT GL -5560 WL-33 T CE -36 (A -D) P CE -41 P WL-41 T CE -42 P WL CE CE WL GL -5720 GL -921 GL -5830 GL -927 WT210-00621; T WT210-0063 ll T WT210-00671 T CE GL -922 WT210-0069 11 T WT210-0070 ll I R -51A P R GL -927 53AWB P RK GL -927 WT210-0071 If I W L-57 T WL GL -5559 WT210-0072 1-1 I R -58A P R GL -927 WT210-0073 11 I CE -59 P CE GL -5581 WT210-0074 1il T R -59A SK -60 R -60A R -61-A SK -63 WT210-0077 If T P R GL -868 P P P P WL RK GL -920 R GL -930 WL GL -868 GL -918 WT210-0078 Ilf T WT210-0079 If T WT210-0106 Ilf T WT210-0116 11. T R -71A P R GL -930, GL -1 P40 WT210-014911 I FG-81-A T WL-81A T FG-97 T GE FG-81-A WL FG-81-A GE FG-97 CE -220 R Z -225/866A R CE -232 R FG-98-A T GE, T FG-98-A WT -245§1f T WT -246§ ¶ T 105WE-249C ML -100/5575 R 100R R WL-104 R WT -T104§11 T T ML EM WL WT GE, RCA GL -56251 GL -8020 GL -5561 See WT210-0044 FG-105 249A 249B 255-A R R R R WL-105 T AX-105/FG-105 T WT -T106§1[ T WT-T110§1f T WT -T111§¶ T WL FG-105 A FG-105 WT See WT210-0043 or WT210-0106 WT See WT210-0054 WT See WT210-0056 255B R HF-255B R 25813 R WT262§1f R 266B R WT WT WT WT WT WT WT WT WT WT WT WT WT WT WT CE NU, UE CE WT WT WE T, WE WE WE WE A A, T, UE WT WE GL -5557 GL -6807 GL -393-A GL -5557 GL -5550 GL -5551-A GL -5552-A GL -5553-B FG-105 5727 FG-172 FG-105 GL-5632/C3J GL -5560 GL -5551-A GL -5558 See WT210-0003 See WT210-0004 GL -8020 GL -866-A GL -866-A GL -866-A GL -866-A GL -869-B GL -869-B See WT210-0008 GL -869-B GL -866-A GL -857-B WT-T112§ 1f T WT -T117§11 T WT-T118§1f T WT -T119§ ¶ T WT -T133§11 T WT -T139§ If T WT -T149¶ T FG-154 T 172 T FG-172 T WT See WT210-0057 WT See WT210-0062 or WT210-0069 WT See WT210-0074 WT See WT210-0078 WT See WT210-0067 WT See WT210-0063 WT FG-172 GE FG-154 RCA FG-172 GE FG-172 F -266B R 266C R 267B R F -267B R HF-267B R WT -272§ ¶ T FG-280 R 287A T CE -302 T CE -305 T F GL -857-B WE GL -857-B WE GL -872-A F GL -872-A A GL -872-A WT See WT210-0015 GE FG-280 WE GL -5557 CE GL -3C23 CE GL -3C23 WL-172 T ML -199 R WT210-0001 ¶ T WT210-0003 11. T WT210-0004 11- T WL FG-172 ML WT 2D21 WT 884 WT 2050 CE -309 T CE GL -5557 GL -5973 CE -311 T CE GL -3C23 315A R A, WE GL -673 F -315A R F GL -673 ML -315A R ML GL -673 t At rated current of 1.0 ampere, the GL -5625 has a voltage drop of 4000 volts; whereas the ML -100/5575 has a voltage drop of 800 volts at 1.0 ampere. § Old part number. Refer to Weltronic's new part number for G -E equivalent. ¶ These are tube socket markings on equipment bearing the Weltronic trade mark. ET -T1468 Page 3 12-57 INTERCHANGEABILITY LIST 319A -872-A Type No. Class Manufacturer Direct G -E Replacement Type G -E Similar Type Type No. Class Manufacturer Direct G -E Replacement Type G -E Similar Type 319A R WE F -319A R F ML -319A R ML 321A R WE HF-321A R A GL -872-A GL -872-A GL -872-A GL -673 GL -673 673 ML -673 676 KU -676 GE, A, F, RCA ML RCA WL ML -321A R 323B NL-323B T UE-323B T F -353A R ML GL -673 678 CH NL UE F GL -872-A GL -3C23 GL -3C23 GL -3C23 WL-678 W L-679 WL-681/686 WL-688 WL-689 F -357-B 366A F -367-A 371-B F -375A R F GL -857-B R WE GL -866-A NL-710 R F GL -673 NL-710/6011 R EE, UE GL -8020 NL-714 R GL -575-A NL-715/5557 NL-716 393A CE -393A NL-393A UE-393A 394A WE GL -3C23 CE NL UE CH GL -393-A GL -3C23 GL -3C23 GL -627 ML -728 WL-735 WL-739 NL-740 GE, A, RCA WL WL WL WL WL NL NL NL NL NL ML WL WL NL FP -400 GL -41 1 GL -414 WL-414 WT -T439§ G L-441 502-A WL-502A 575-A DR -575-A F -575-A ML -575-A WL-575-A UE-578 WL-578 R GE FP -400 R GE GL -41 1 T GE GL -414 T WL GL -414 WT See WT210-0038 N L-740- P WL-741 NL-760 NL-760-L NL-760-P P GE GL -441 T GE, RCA 502-A T WL 502-A R GE, A, EE, NU, RCA GL -575-A R GES GL -575-A 857 857-B DR -857-B F -857-B ML -857-B WL-857-B R F GL -575-A 866 R ML GL -575-A 866-A R WL GL -575-A R UE GL -8020 DR -866-A R WL GL -8020 EE -866-A NL WL NL NL NL RCA GE, A, RCA GES F ML WL A, RCA GE, CE, CH, EM, NU, RCA, S GES EE WT -606§ NL-615 NL-618 627 KU -627 T R R WT NL NL GE, RCA WL See WT210-0001 GL -627 GL -627 GL -5558 GL -5561 FIF-866-A ML -866-A RK-866-A T -866-A UE-866-A A ML RK UE KU -628 WL-630 WL-630A W L-631 WL-632B T KU -634 635P R W L-651 /656 WL-652/657 WL-653B WL-655/658 672 WL-672 672-A WL-672-A WI WL WL WL WL WL NL WL WL WL WL RCA WL GE, RCA WL 2050 2050 GL -5559 GL -556011 GL -5559 GL -6930/635-P GL -5552-A GL -5551-A GL -5555 GL -5561 GL -5553-B GL -672-A GL -672-A GL -672-A GL -672-A WL-866-A 866-A/866 866 -AX 866-JR 868 W L-868 GL-868/PJ-23 869-A 869-B DR -869-B F -869-B ML -869-B WL-869-B 872 872-A WL RCA A NU, T GE, RCA WL GE RCA GE, A, RCA GES F ML WL RCA GE, CE, EM, NU, RCA, 5, T § Old part number. Refer to Weltronic's new part number for G -E equivalent. ¶ These are tube socket markings on equipment bearing the Weltronic trade mark. 3/8 inch shorter, R. inch greater in diameter; control -grid cap extends from side of bulb instead of from base. GL -673 GL -673 GL -678 GL -5632/ C3J GL -5632/ C3J GL -678 GL -5554 GL -5550 GL -5564 GL -6228 GL -6011/710 GL -6011/710 GL -5557 GL -6855/716 GL -5557 GL -5557 GL -868 GL -6856/740 GL -927 GL -6857/740-P GL -6807 GL -6809 GL -6808 GL -923 GL -857-B GL -857-B GL -857-B GL -857-B GL -857-B GL -857-B GL -866-A GL -866-A GL -866-A GL -866-A GL -866-A GL -866-A GL -866-A GL -866-A GL -866-A GL -866-A GL -866-A GL -868 GL -866-A GL -866-A GL -868 GL -868 GL -869-B GL -869-B GL -869-B GL -869-B GL -869-B GL -869-B GL -872-A GL -872-A ET -T1468 Page 4 12-57 DR-872-A-NL-5559/FG-57 INTERCHANGEABILITY LIST Type No. Class DR -872-A R EE -872-A R F -872-A R RK-872-A R UE-872-A R 872-A/872 R ML -872-A/872 R WL-872-A/872 R 872 -AX R EE -873 T 1-875-A R 884 T DR -884 T RX-884 T WL-884 T 885 T RX-885 T WL-885 T 918 P WL-918 P 919 P WL-919 P 920 P WL-920 P 921 P WL-921 P 922 P WL-922 P 923 P WL-923 P 927 P WL-927 P 929 P WL-929 P 930 P WL-930 P 931-A P WL-931A P UE-966 R UE-966-A R 967 T NU -967 T UE-967 T UE-972 R UE-972-A R UE-973 T 975-A R UE-975-A R NL-1001 I NL-1005 I NL-1051 I NL-1052 I NL-1053 1701 T 1754 T Manufacturer GES EE F RK UE RCA ML WL A EE T GE, A, CH, NU, RCA, S GES RK WL GE, A, CH, NU, RCA, S RK WL GE, RCA WL GE, RCA WL GE, RCA WL GE, RCA WL GE, RCA, S WL GE, RCA WL GE, RCA WL GE, RCA, S WL GE, RCA, S WL GE, RCA, S WL UE UE NU NU UE UE UE UE NU UE NL NL NL NL NL A KU Direct G -E Replacement Type GL -872-A GL -872-A GL -872-A GL -872-A GL -872-A GL -872-A GL.872.A GL -872-A GL.872.A GL -575-A 884 884 884 884 885 885 885 GL -918 GL -918 GL -919 GL -919 GL -920 GL -920 GL -921 GL -921 GL -922 GI -922 GL -923 GL -923 GL -927 GL -927 GL -929 GL -929 GL -930 GL -930 GL -931-A GL -931-A GL -866-A GL -866-A GL -5557 GL -5557 GL -5557 GL -872-A GL -872-A GL -575-A GL -5551-A GL -5552-A GL -5553-B GL -5557 GL -5948 G -E Similar Type Type No. Class Manufacturer Direct G -E Replacement Type GL -678 1904 T 2050 T WL-2050 T RK-2050 T 2051 T RK-2051 T 5544 T GL -5545 T 5550 I AX -5550 I GL-5550/GL- I 415 WL-5550/681/ I 686 5551 I AX -5551/652 I W L-5551/652 I 5551-A I WL-5551-A I 5552 I NL-5552 I AX -5552/651 I WL-5552/651 I 5552-A I WL-5552-A I 5553 I AX -5553/655 I WL-5553/655 I 5553-A I 5553-B I WL-5553-B I 5554 I RCA GE, A, CH, HY, NU, RCA, S WL RK A, CH, NU, RCA RK GE, A GE GE, NL, RCA A GE WL NL, RCA A WL GE, A WL NL, RCA NL A WL GE, A, NL, RCA WL RCA A WL RCA GE, A, NL, RCA WL GE, RCA GL -5728 2050 2050 2050 2050 2050 GL -5544 GL -6807 GL -5550 GL -5550 GL -5550 GL -5550 GL -5551-A GL -5551-A GL -5551-A GL -5551-A GL -5551-A GL -5552-A GL -5552-A GL -5552-A GL -5552-A GL -5552-A GL -5552-A GL -5553-B GL -5553-B GL -5553-B GL -5553-B GL -5553-B GL -5553-B GL -5554 AX -5554/679 I WL-5554/679 I GL-5554/FG- I 259-B 5555 I AX -5555/653-B I A WL GE GE, RCA A GL -5554 GL -5554 GL -5554 GL -5555 GL -5555 WL-5555/653B I GL-5555/FG- I 238-B 5556 R GL-5556/PJ-8 R 5557 T WL GE GE, RCA GE GE, RCA GL -5555 GL -5555 GL -5556 GL -5556 GL -5557 WL-5557/17 T AX-5557/FG- 17/1701 T GL -5559 GL-5557/FG- T 17 GL -575-A 5558 R GL -5550 WI -5558/32 R GL -5551 -A GL-5558/FG-32 R 5559 T AX -5559 T GL-5559/FG-57 T NL-5559/FG- T 57 WL A GE GE, RCA WL GE GE, RCA A GE NL GL -5557 GL -5557 GL -5557 GL -5558 GL -5558 GL -5558 GL -5559 GL -5559 GL -5559 GL -5559 G -E Similar Type ET:T1468 Page 5 12-57 INTERCHANGEABILITY LIST WL-5559/57-8020/10OR Type No. Class Manufacturer Direct G -E Replacement Type G -E Similar Type Type No. Class Manufacturer Direct G -E Replacement Type G -E Similar Type WL-5559/57 T 5560 T GL-5560/FG-95 T NL-5560/FG- T 95 5561 R WL GE, RCA GE NL RCA GL -5559 GL -5569 GL -5560 GL -5560 GL -5561 5728 T GL-5728/FG- T 67 GL-5740/FP-54 R GL -5779 I GL -5788 I GE, RCA GE GE GE GE GL -5728 GL -5728 GL -5740 GL -5779 GL -5788 GL -5561 GL-5561/FG104 WL-5561/104 F-5563 5563-A GL -5564 GL-5564/GL507 ML -5575 /100 5581 WL-5581 GL -5620 GL-5620/FB-50 GL -5621 GL -5621 /B-6 GL -5623 GL -5623/B-47 GL -5624 GL -5624/B-46 GL -5625 GL-5625/KC-4 GL -5626 GL-5626/FA-15 GL -5627 GL-5627/FA-6 GL -5628 G L-5628/ FA -13 GL -5629 GL-5629/FA-14 GL -5630 5632 GL-5632/C3J 5662 5663 5664 WL-5664 5665 GL-5665/C16J GL -5674 5683 5685/C6J R R R T T I I R P P B B B B B B B B R R VS VS VS VS RVG RVG RVG RVG I T T T T T T T T R T T AX-5685/C6J T WL-5685/C6J/ T A 5696 T GL -5720 T GL-5720/FG- T 33 NL-5720/FG-33 T 5727 T 5727/2D21 -W T GE GE WL F RCA GE GE ML GE, RCA WL GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE EL GE GE GE EL WL EL GE GE EL EL A WL GE, RCA GE GE NL GE GE GL -5561 GL -5561 GL -5561 GL -5564 GL -5564 GL -5625. GL -5581 GL -5581 5822 I N1-5822 I 5822-A I NL-5822-A I GL -678 GL -5830 T GL -678 GL-5830/FG- T 41 GL -5855 T 5948 T 5948/1754 T GL -5973 R GL -5620 GL -5620 GL -5621 GL -5621 GL -5623 GL -6011/710 T WL-6011/710 T 6014 T GL-6014/C1K T GL -6228 I GL -5623 GL -5624 GL -5624 GL -5625 GL -5625 GL -6228/506 I 6228/689 I 6277/3628A R GL -6346 I GL -6347 I GL -5626 GL -5626 GL -5627 GL -5627 GL -5628 GL -6348 I GL -6504 I GL -6509 I GL -6511 I GL -6512 I GL -5628 GL -5629 GL -5629 GL -5630 GL-5632/C3J GL -6011/710 5662 5663 GL-5665/C16J GL-5665/C16J GL -5674 GL -3C23 GL -3C23 GL -6513 I GL -6514 I GL -6515 I GL -6807 T GL -6808 T GL -6809 T GL -6855/716 T GL -6856/740 T GL -6857/740-P T GL -6858/760 T GL -6859/760-P T GL-6860/C6J/ T GL -3C23 F GL -6860/ GL -6878 I C6J/F GL -6930/635-P R 8008 R GL -6860/ C6J/F DR -8008 R GL -6807 EE -8008 R ML -8008 R 5696 GL -5720 UE-8008 R WL-8008 R GL -5720 8020 R DR -8020 R GL -5720 EE -8020 R 5727 5727 W L-8020 R 8020/100R R A, RCA NI. GE, A, RCA NL GE GE GL -5822-A GL -5822-A GL -5822-A GL -5822-A GL -5830 GL -5830 GE GE, CH, KU CH, KU GE GE WL EL GE GE GE WI T GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GE GL -5855 GL -5948 GL -5948 GL -5973 GL -6011/710 GL -6011/710 GL-6014/C1K GL-6014/C1K GL -6228 GL -6228 GL -6228 GL -866-A GL -6346 GL -6347 GL -6348 GL -6504 GL -6509 GL -6511 GL -6512 GL -6513 GL -6514 GL -6515 GL -6807 GL -6808 GL -6809 GL -6855/716 GL -6856/740 GL -6857/740-P GL -6858/760 GL -6859/760-P GL-6860/C6J/F GE GL -6878 GE GL -6930/635-P GE, A, CH, RCA, T GL -8008 GES EE ML UE WL GL -8008 GL -8008 GL -8008 GL -8008 GL -8008 GE, A, NU, RCA GES EE WL EM GL -8020 GL -8020 GL -8020 GL -8020 GL -8020 At rated current of 1.0 ampere, the GL -5625 has a voltage drop of 4000 volts; whereas the ML -5575/100 has a voltage drop of 800 volts at 1.0 ampere. This information has been carefully compiled from tube data available at the date of publication and is believed to be accurate. No responsibility, however, is assumed for errors caused by inaccuracies in tube data. APPLICATION DATA ETI-108 PAGE 1 4-45 IGNITRONS ETI-108 PAGE 2 4-45 DESCRIPTION I gnitrons are gas -discharge, pool -type cathode tubes in which the arc is started for each conducting cycle by means of a starting or ignition electrode. The tubes are of the half -wave type in which current is carried through the tube during only the positive part of the cycle. During the remainder or nonconducting part the residual ionization reaches very low values in comparison with the ionization present in the multi -anode type of pool tube where it is proportional to the load current carried. As a result of the so-called dark, negative half -cycle, the shielding required in half -wave tubes is greatly reduced from that in the multi -anode tube. Reduction of shielding in turn lowers the arc voltages so that tubes of this type may be efficiently applied in the lower voltage (125 to 250 volt) fields. Mercury -pool cathodes are capable of supplying emission currents of many thousands of amperes. By phase control of the point in the cycle at which the ignitor is fired, the output voltage or current may be reduced from the maximum to provide voltage or current control. The ignitron, therefore, possesses many of the control characteristics of the thyratron, and in addition has emission capacity for carrying very high currents. In general, the tubes are water-cooled, but in the smaller sizes may be air-cooled. Exceptions are the GL -415 ignitron for welder control use in which temperature control is provided by clamping the cathode portion of the tube in an air or water- cooled metal clamp, and the GL -427 ignitron which is a small glass tube designed specifically for ignitor demonstration purposes. GENERAL CLASS OF OPERATION AND APPLICATION There are three main fields of applications for which ignitrons are particularly suited-resistance welding, power rectification, and power conversion or transmission. 1. In welding control applications ignitron tubes are used to control the primary current supplied to resistance welding transformers. They are used in voltage supply circuits of 220, 440, 550, 1100, and 2300 volts rms. The control is the most exact that has been developed. The tubes operate as contactors and through suitable thyratrons and other electronic control, may be arranged to provide one, two, or a dozen cycles of current. Off periods may likewise be controlled with the same exactness in line welding operations. Given weld settings may be repeated indefinitely without change in the number of cycles. As a result, very great uniformity in the welds is obtained, and losses from poor welds are reduced almost to the vanishing point. 2. In the power rectification field ignitrons are available in sizes which permit d -c outputs of 40 to 1000 kilowatts to be obtained in single units depend- ing on the operating voltage. Usual d -c voltage levels are 125, 250, 600, and 900 volts. Such rectifiers are used to provide d -c power for machine shops, elevators, mines, electrolytic reduction plants, arc welding, and similar types of service. Suitable voltage regulating equipment may be provided to give practically constant output voltage from zero to full load. Variable voltage output and control (similar to the Thy-mo-trol) will provide speed control for d -c motors. 3. The third class of application is high -voltage d -c power transmission, or conversion of power at one frequency to power at another. In such applications the tubes are primarily for power conversion and are grouped to form units of 2000 to 20,000 kilowatt capacity. Higher capacity may, of course, be obtained by additional units. These electronic power converters provide a non -synchronous tie between two power systems and are able to transmit a constant amount of power independent of the usual variations in either the supply or receiving system frequencies and voltages. PRINCIPLES AND FUNDAMENTALS OF OPERATION The ignitor is a small rod of highly refractory material about the shape and size of the pointed end of an ordinary lead pencil. This point dips into a mercury pool and by passing a current of 10 to 30 amperes through the ignitor, a cathode spot is established at the junction between the ignitor and mercury pool. The mechanism is one in which the passage of current establishes sufficient voltage gradient at the mercury pool to draw electrons from the pool and start the cathode spot. Ionization from this initial spot spreads throughout the volume of the tube and if the main anode is positive, electrons begin to flow to it. Passage of the electrons in turn ionizes the gas and establishes the conditions for the low arc drop that is characteristic of gas -filled tubes. As the current increases above 20 amperes, the cathode spot divides and sub -divides until a sufficient number of spots exist to supply the anode current. These spots move rapidly and indis- criminately over the surface of the pool, tending in general to occupy a circle of given diameter for a given current, centered around the ignitor. The cathode spots in effect remain anchored around the ignitor, and the usual insulated pools used in the multi -anode tubes to prevent the arc from wandering onto the walls of the tube, are not required. At the end of conduction when the current begins to decrease, the number of spots decrease and finally at zero current die out altogether. Ionization rapidly decays at this point to values which permit the application of the inverse voltage for which the tubes are designed without the occurrence of arc backs (that is, current conduction in the reverse direction with the anode acting as cathode). Mercury which is evaporated by the action of the cathode spot is condensed on the water-cooled walls of the tube. From this point it rolls back into the mercury pool to maintain the required ignitor im- mersion. Approximately 3/1 grams of mercury are evaporated for each 100 ampere -seconds a tube conducts current. The pressure (see Fig. 1) due to this mercury must be controlled and the water cooling serves in this function as well as to remove the arc losses. The arc drop is relatively low, ap- proximately 12 to 18 volts, and the over-all efficiency even at low output voltages is, therefore, very high. ETI-108 PAGE 3 4-45 30 ) - 20 )- RELATION BETWEEN MERCURY-VAPOR PRESSURE AND TEMPERATURE FOR EQUILIBRIUM CONDITIONS 1 ) 8) 6) 4) 2 ) 8. I 6. 4. 2. ) 1 8 K-9033553 0 10 20 30 40 50 60 70 80 90 100 TEMPERATURE IN DEGREES C Fig. 1 12-6-44 DESIGN AND CONSTRUCTION General Electric ignitrons have a number of design and construction features (see Fig. 19, page 11) which provide reliable operation and long trouble -free service. The tube jackets and watercooling sections are constructed of stainless steel which minimizes corrosive effects as well as provides a vacuum -tight enclosing envelope. The insulating bushings which separate the anode from the main body of the tube, as well as the ignitor seals and leads, are constructed of fernico and a high -resistance borosilicate glass. Fernico is an iron -nickel cobalt alloy which was developed in the General Electric Research Laboratories. It has the unique characteristic of having an inflection point in its temperature elongation characteristic at the same temperature as that of certain hard glasses. The expansion of the fernico and the proper glass match very closely over the entire temperature range encountered in manufacture and use. Such seals are strain -free under usual operating conditions and form one of the strongest glass -to -metal combina- tions developed. The ignitor is one of the most essential parts in the tube and its manufacture requires very close control to insure uniformity of characteristics and life. Every operation in the manufacture of these ignitors is carefully controlled through inspection and testing. All of the welds in the General Electric ignitrons are made by means of ignitron controlled resistance welding machines. These welds are unusually strong and vacuum tight. ETI-108 PAGE 4 4-45 RATINGS The ratings of ignitron tubes, in common with other electronic tubes, are defined in terms of the maximum instantaneous voltage and current conditions under which the tube may operate. Other factors are the water temperature which controls vapor pressure; and the capacity of the tube to dissipate losses, which is described in terms of the average anode current. One of the larger rectifier ignitrons, the FG-238-B for example, has an average anode current rating of 200 amperes and an arc drop of approximately 17 volts, so that the water cooling is required to dissipate approximately 3.5 kilowatts. The electrodes of ignitron tubes in common with other electronic tubes have much smaller mass than rotating machinery or other heavy electrical apparatus. The time required for welder tubes to reach equilibrium temperature is only a few seconds and is shorter than the time constant of most other electrical apparatus. The limiting factor encountered in this service is the high -current short -time peaks which rapidly increase the vapor pressure to values which may cause loss of control or arc back. The same factors govern rectifier tubes, but since the usual load is of a continuous nature with relatively low ratios between maximum and average currents, the time constant is of the order of minutes. The instantaneous capacity in either case is very high and meets the usual welder requirements, or those of rectifiers to clear fuses or breakers in case of short circuit. Minimum and maximum outlet water temperatures are other ratings. The graph in Fig. 1 shows the relation between mercury-vapor pressure and temperature for equilibrium conditions. Roughly, mercury-vapor pressure doubles for each 10 -degree increase in temperature, so that at higher temperatures the limiting pressures may be approached rapidly. The ignitor will fire even in a pool of frozen mercury. The lower limit is usually dictated by the point of freezing water and by a vapor pressure so low that there are insufficient ions to carry the required current. Arc constriction or starvation under these conditions is very unlikely to occur in the welder tubes which are of relatively open construction. Neither does it occur in the rectifier ignitrons, which are more completely shielded, within the temperature limits given as part of the technical data. In tubes with grids, such as the pentode ignitron, the effect be- comes more pronounced and minimum temperatures are correspondingly higher. Ignitor The ignitor rating is described in terms of maxi- mum instantaneous potential and current required for ignition as well as maximum allowable forward and inverse voltages. The ignitor, when not operating and cold, may have a resistance of 20 to 100 ohms. Under operating conditions, this resistance decreases to about 2 to 10 ohms. The ignitor behaves as though it were a constant resistance over any one cycle, but due to wave motion in the mercury pool, resistance on successive cycles may vary widely. Ignition currents likewise vary widely from cycle to cycle, and normally require much less current than the values stated. Ignitors will not stand reverse current as this may cause a cathode spot on the ignitor itself and the resulting heat and burning tends to destroy the point. Some rectifying device such as a thyratron, or a dry -plate rectifier, must be connected in series with the ignitor. Welder Ignitrons The capacity of these tubes is described in terms of maximum kva demand for each type, for voltages from 220 to 600 rms and frequencies of 25 to 60 cycles. For higher voltages, tubes of the rectifier type are used and corresponding ratings applied. Each tube has a maximum average anode current rating which represents its heat dissipating ability and which may be read on an ordinary d -c ammeter. These two ratings, in conjunction with the supply voltage and the maxi- mum time of averaging the anode current completely describe the necessary conditions for welder service. For example, assume a power demand of 500 kva and a supply voltage of 250 volts (rms). The line current demand is: 'line - 500,000 250 -= 2000 amperes (rms) (1) or = V2 X 2000 ---- 2800 amperes (max) (2) Then, the demand average current per tube over any conducting cycle is: TD.avg/tube I max 2800 3.14 = 891 amperes (3) The demand kva is within the rating of the FG-271 and at this value of kva, the tube has an average anode current rating of 33 amperes, and at 250 volts a maximum time of averaging the anode current of 18 seconds as shown in the Techni- cal Information. The maximum tube capacity, therefore, in ampere -seconds is: Tube Iavg, X tmax. avg. = 33 x 18 = 594 ampere seconds The length of time the tube can conduct the demand current in any 18 -second period must be within the tube ampere -second capacity. The permissible length of conduction, or weld, may, therefore, be represented by t in the expression: 'Demand avg./tube X t = 594 ampere -seconds t max = 589914 = .67 seconds (4) or since we are usually interested in cycles, the corresponding number for a 60 -cycle supply is, n = t X 60 = 40 cycles (4a) A single weld using the 40 cycles is permissible or any number of welds using fewer cycles (2, 3, 4, etc.) may be made providing the total conduction does not exceed the maximum during any 18 - second averaging time. The duty in percent is the ratio of the on to total cycles in the averaging period. Duty = No. of conducting cycles No. of cycles in averaging time X 100 (5) which for the above case is: t max. avg. X 60 X 100 - 40 18 X 60 X 100 (5a) = 3.7% The maximum surge current represents a measure of the circuit stiffness in case of fault con- ditions. It is the maximum current that the tube may be expected to carry under fault conditions without immediate damage. Repeated operations under such conditions may, of course, shorten the tube life. Phased -back operation ratings are determined by the conditions at full advance (no phase retard). That is, phase -back operation produces a greater stress on the tubes. Therefore, the permissible cur- rent is reduced from full -on in proportion to the angle of retard. Rectifier Ignitrons Rectifier ignitron tube ratings also are given in terms of the usual circuit requirements. Most in - dustrial rectifiers have current ratings of 100 per cent continuous, 125 per cent for two hours, and 200 per cent for one minute. The maximum average anode current is described in these terms. The maximum instantaneous current repre- sents the maximum cycle -by -cycle duty for which the tube is designed to operate. Two levels of inverse voltage are given with different current ratings corresponding to output voltages of 300 and 600 volts d -c. The surge current represents the maximum forward current which the tube should carry under fault conditions. Its duration should not exceed the time given. These last two factors define the transformer and supply system impedance and the minimum operating speed of the circuit breakers. The value of the surge current is such that rectifiers having overall regulation of 6 to 7 per cent can be obtained with practicable designs of transformers. Higher regulation tends to reduce the duty on the tube by reducing the possible short-circuit current. In terms of d -c output, the current is simply the average current per tube times the number of tubes employed, provided the tubes are used in the usual circuits and that the peak anode current is not exceeded. ETI-108 PAGE 5 4.45 CLASSES OF TUBES There are three classes of ignitron tubes espec ially designed for each type of service : 1. Welder Ignitrons These tubes are of relatively open construction with little shielding and are designed specifically to carry the high currents encountered in resistance welding. They also may be used as rectifiers in certain welding equipment where the output voltage is usually less than 150 volts d -c. These tubes have the lowest arc drop voltage of any of the ignitrons. 2. Rectifier Ignitrons These tubes are more highly shielded to withstand the voltage and current conditions encountered each cycle during the commutation period at the end of conduction. The arc drop is approximately 2 volts higher than that of corresponding sizes of welder ignitrons. While used primarily for rectifier service, they are also applied in 2400 -volt welding control applications where the higher voltage requires a more shielded tube. 3. Grid -Pool Tubes This type of tube, such as the pentode ignitron, is primarily for high -voltage rectification or inversion in power or frequency -conversion work. Grids are added to the usual ignitron structure to provide additional control and deionization when the tube is used in inverter service. Its application requires considerable detailed coordination between the circuit and tubes, and it is recommended that appli- cations for this type of tube be referred to the Electronics Department, Tube Division, Schenectady 5, N. Y. APPLICATIO N CIRCUITS# Ignitrons for resistance welding control are used chines. Fig. 2 shows a typical circuit with two tubes in spot, pulsation, seam, and flash welding ma- in a back-to-back connection. Iles TI SEC T2 SEC EB-E M-5375506 (A) F;g. 2-Power Circuit for Synchronous Control of Welding Currents 11-29-44 ETI-1 08 PAGE 6 4-45 APPLICATION CIRCUITS (CONT'D)# One older method (for illustration) of controlling the number of on and off cycles in line welding con- sisted of a moving tape or chain with insulated sections which supplied off -on bias to the grids of the thyratrons. The length of the conducting sections was such that at synchronous speed, the on time corresponded to the number of cycles desired; say, 3, 5, etc. The non -conducting sections were of length to give off periods of say 4, 6, etc. It is present practice to use electronic control with thyratron tubes and capcitor-resistance combinations to give the proper time constant for controlling the on -off period. These electronic controls are comparatively complex and requests should be sent to the General Electric Company for a detailed description. Speed of control, cycle -by -cycle response, small space requirements, lack of noise, and flexibility of appli- cation all contribute to the success of welding ignitron control. Ignitron contactors which operate in the same manner but which do not have the precise control of the number of cycles are also in wide use. In effect, the ignitron units simply replace ordinary contactors with the advantage of noise reduction and decreased maintenance. Fig. 3 shows the typical connections for this type of service. This compares with 6 to 8 cycles for most mechanical breakers. Regular circuit breakers are still required for overall fault protection. Typical rectifier applications include the d -c supply for lighting and power loads in buildings, elevators, d -c motor supply in machine shops, printing presses, power for the electrolytic separation of hydrogen, oxygen, chlorates, aluminum and magnesium, plating and mining. Mining rectifiers, may be designed with very low head room (42 inches) so that the unit may be placed in the actual mine itself near the working source. As the mine is worked, the ignitron rectifier may be conveniently moved to provide full voltage at the location where the mining is centered. One particular advantage of rectifier equipment in mine service is that the rectifier does not have the problem of pull-out torque encountered in synchronous machines. Most mine IG NIT R ON S A -C SJPPLY L WELDING TRANSFORMER 1 WOR.( IAN IT R ORS K-9033544 IGNITRONS 12-6.44 Fig. 4-Three-Phase, Double -Way Rectifier Circuit for Three -Wire Service 9033541 INITIATING SWITCH FUSE WATER FLOW SWITCH 12 6-44 Fig. 3-Electronic Welding Contactor Circuit with Manual Non -Synchronous Control Such contactors are found in welding service where precise control is not required, and in applications where frequent opening and closing of the circuit is required such as in temperature -regulated furnaces. Phase control which permits a gradual change of the output voltage may be obtained by a modification of the control circuit and the addi- tion of phase shifting networks and thyratrons. Another application for this type of equipment is the interruption of the power supply for radio transmitters. In case of arc over in the transmission line or coils, or flashing in the vacuum tubes, it is desirable to remove the plate power supply as rapidly as possible to prevent possible gassing or burning of the transmitting tube. These contactors, when placed in each line of the primary of the rectifier, may be controlled completely to interrupt the flow of power in one to two cycles, in case of a fault. load stations are at a considerable distance from the power source and as a result, reactance in the supply lines is usually high. This decreases the overload that can be carried without exceeding the torque limit. Three -wire rectifiers are possible (see Fig. 4) where 125/250 volt supplies are needed. Such units have also been used for d -c arc welding power supplies. LL 00 RECTIFIER RECTIFIER 6000 250V SE G SE GOOV 250V K-9033539 25 50 75 100 125 PER CENT LOAD 12-6-44 Fig. 5-Overall Efficiency of 300KW, 250 -and 600 -Volt Ignitron Rectifier in Comparison with Motor -Generator Sets of Same Ratings # Circuits shown in ETT-108 are examples of possible tube applications and the description and illustration of them does not convey to the purchaser of tubes any license under patent rights of General Electric Company. Ignitron rectifiers have all the advantages of quiet operation, small space requirements, no special foundation requirements, ease of control, and low maintenance that are common to electronic tubes. The principal advantage from the user standpoint, how- ever, is efficiency. Fig. 5 (see bottom of page 6) shows efficiency of the 300 kilowatt, 250 volt ignitron rectifier in comparison with other forms of conversion equipment. ETI-108 PAGE 7 4-45 In terms of losses for this size rectifier, there is a constant kilowatt difference of approximately 10 kilowatts in favor of the ignitron rectifier over the usual load range. Therefore, if the rectifier is operated continuously during the year, there is a net power saving of approximately 10 kw X 8760 hours X .01 = $876 at a power rate of one cent per kilowatt hour. Such savings are more than adequate to pay for the probable tube replacement cost. SELECTION OF TUBES Selection of ignitron tubes for welder service de- viding the maximum tap settings have been used. pends primarily on the kilovolt -ampere demand The tube selected should have sufficient capacity to and the duty. The maximum kilovolt -ampere de- conduct the maximum current demand within the mand in terms of volts and amperes in the welding tube rating. The permissible duty is then detertransformer primary can be obtained from the man- mined by the average current capacity of the tube ufacturer. Where such data are not available, a and if this capacity is below that required, a larger clamp -on ammeter with' a pointer stop or maximum size of tube must be selected. For example, suppose swing indicator may be placed around one of the that a welder having a 1000 -ampere rms current primary leads and the secondary of the welder demand and a 20 per cent duty is required, and that shorted through well clamped copper bars or strips. the supply voltage is 500. Demand rms current for The welder is then energized for periods long enough this voltage in terms of percentage duty has been to allow equilibrium readings to be obtained on the plotted for convenience on curves included with the meter. With synchronous ignitron control, 3 or Technical Information. Reference will show that more cycles will give accurate readings. With non - the FG-235-A tube has sufficient capacity and is the synchronous control, longer periods may be neces- tube required. If the duty were less than 7 per cent sary to eliminate the probable starting transient. two FG-271 tubes could be used. This constitutes the maximum current demand pro - Selection of the size and number of tubes for KILOWATT RATINGS IGNITRONS AT 125V 300V 600V 900V D -C D -C D -C D -C NO. TYPE 40 75 100 100 3 FG-259-B 50 100 150 150 6 FG-259-B 75 150 200 200 6 FG-259-B 100 200 300 300 6 FG-238-B 150 -- -300 400 500 400 6 FG-238-B 500 6 FG-238-B 200 400 750 750 12 FG-238-B TRANSFORMER SECTION CONNECTIONS Y, ZIG-ZAG DOUBLE Y DOUBLE Y DOUBLE Y DOUBLE Y DOUBLE Y QUADRUPLE Y PHASE OPERATION INPUT 3 3 3 3 3 3 OUTPUT 3 6 6 6 6 6 3 6 or 12 PRINCIPLE RIPPLE COMPONENT IN OUTPUT VOLTAGE FREQUENCY MAGNITUDE 3X INPUT 0.25E ID -C 6X INPUT 0.057E D -C 6X INPUT 0.057E ID -C 6X INPUT 0.057E D -C 6X INPUT 0.057E D -C 6X INPUT 0.057E D -C 6 or 12X INPUT 0.057E D -C or 0.014E D -C 300 500 1000 1000 12 FG-238-B QUADRUPLE Y 3 6 or 12 6 or 12X INPUT 0.057E D -C or 0.014E ID -C Fig. 6-Ratings of Standard Sizes of General Electric Sealed Ignitron Rectifiers for Industrial Service rectifier service to supply a given d -c output is rela- (see Useful Factors pages 9 and 10). Fig. 6 shows tively simple. Assuming that the usual overload combinations for rectifiers of 40 to 1000 kilowatts ratings apply, the average current per tube is the at d -c outputs of 125 to 900 volts. d -c load current divided by the number of phases These values correspond to standard units which CIRCUITS FOR RECTIFIER TUBES (Figs. 7 through 16) CIRCUITS a HI III, E D -C HZ iii) db LOAD VOLTAGE AND CURRENT WAVE FORM TUBE CURRENT WAVE FORM I CYCLE I 1.4IEs IMAX IMAX -i CYCLE-I / 7 BI PHASE - HALF WAVE ETI-108 PAGE 8 4-45 the General Electric Company supplies as unit sub- stations. They require only electrical and water connections to function as a direct -current power substation. Various combinations of tubes may be used such as shown in Figs. 7 through 16, but in general the 3 -phase double -Y half -wave, and the 3 phase, half -wave circuits are widely used. These circuits give a 6 -phase and 3 -phase output ripple which is so low that it causes little effect on units using direct -current power. CIRCUITS FOR RECTIFIER TUBES (CONT'D) CIRCUITS CLOUADRVORLTAG1EMA1ND TUBE CURRENT WAVE FORM E D -C H2 a ill 8. BI PHASE -FULL WAVE 11,41 E1 s AMAX.IMAX.. I CYCLE-. i ---1 i CYCLE. Es 9. THREE PHASE -HALF WAVE E D -C 4111 f I 1.41Es IMAX It AX. 1- I CYCLE 1 ---I-kCYCLE 1---- H2 c " H3 HI 11, gb, 1111 ED -c ilb - .----. V Y i' / \/ /\ /\ \ ). 1.2c E s V/ / \ / \ / \ , \_ / , / \ / \./ V v V \/ v ' i -7- IMAX. \/-/----\h/--'-\-,v,\./ // \ ,/ v/ \I-IIMAX / 1/ 1 CYCLE -I ----liCYCLE 1-- 10. THREE PHASE- DOUBLE Y- HALF WAVE H2 1..i. H, 4, . ., " , : fit II II . It . : S "c%J-,-,-Iz -\\ Epc ,.,.,,':,,,.7, y,y-----; ,, _----,c,-, / \, ,/ \ / -;" / )'y',/ A 1\ /, \, v I^ 7/ /7iV7A/,/\-y-, -\A7</\'' 1 i 1.18 Es IMAX 1 \ / 0. k /Av4\/ 1 4 % I' .1 V 4/' I J V i X i /1 \ 4- IMAX _ 1\ I IA I CYCLE -IA -CYCLE I- I. THREE PHASE -QUADRUPLE Y -HALF WAVE I /\ /\ ,\ /\ f\ /\ /\ /,----\\ t ' /\ /\ /\ /\ /\ /\ / X V V V \/ I \ 1.141Es rolx. / \ IMAX. \ I / I. ii '.-. I------ 1 CYCLE -- --I ----I 1--- k CYCLE 12. SIX PHASE -HALF WAVE Notes for Figs. 7 through 16: The theoretical wave forms are for a resistance load neglecting voltage reduction due to tube arc drop and current overlap at commutation. Es = Secondary voltage, RMS value. CIRCUITS WI H2 *110 0 H 3 ASE: eMie 13. THREE PHASE -FULL WAVE OIA. H3 A-WMIN -C\24/IMAX _ ED LOAD VOLTAGE AND CURRENT WAVE FORM '-` 7.-\ /-\ r /\ \ i A. ----L -1- / A-- / -.\- I 5 Es TUBE CURRENT WAVE FORM -\\ //._..\-/ \ _V -/ X AV MAX. ...._. s _.., I CYCLE N..." 1 3 CYCLE _ E0_0 N \ 7---, \ /---\ ,..--- \_ -\ / \ / \ / A__. / k / , / \ \ / /\ \/\ / 245Es /\ /--"-J L/ _ \ \ i\ )\ 1 1MAX. / __L _ IMAX. ETI-108 PAGE 9 4-45 14. THREE PHASE -FULL WAVE -THREE WIRE _ H2 ,\ Dc \ Hi H3 + 15. FOUR PHASE -HALF WAVE I CYCLE --I k_ -§ CYCLE i / , V \/ / A\ / \ \i/ /\ f 14 1E3 \/ /\\ \i/ 1 f 1\ IMAX / I // f IMAX. I \i // / I CYCLE ------1 ---1 1--..--- i CYCLE H 2 / \ /\ /\ Ilt. i,,i H3 - 1 a a. a a 16. DOUBLE BIPHASE -HALF WAVE- WITH INTERPHASE TRANSFORMER 7,, e....,\ /.... /e^, ED -c \I V \,/ \/ \/ 1 [- I CYCLE H USEFUL FACTORS FIG. NO. 7 8 9 10 11 12 AVERAGE TUBE CURRENT LOAD CURRENT .500 .500 .333 .167 .0833 .167 ED -C (AVERAGE OUTPUT VOLTAGE) 0.900 Es 0.636 EM D -c 0.900 Es 0.636 Em D -C 1.170 Es 0.827 Em D -C 1.170 Es 0.955 Em D -C 1.170 Es 0.955 Em D -C 1.350 Es 0.955 Em D -c Note: EM D,c =Maximum of D -C voltage. // \\ / 2 AMAX. 1_._ isCYCLE--i 4 PEAK INVERSE VOLTAGE 2.282 Es 3.141 ED -C 1.414 Es 1.570 ED -c 2.450 Es 2.090 ED -c 2.450 Es 2.090 ED -C 2.450 Es 2.090 ED -C 2.280 Es 1.690 ED -c ETI-108 PAGE 10 4-45 FIG. NO. 13 14 15 16 USEFUL FACTORS (CONT'D) AVERAGE TUBE CURRENT LOAD CURRENT .333 E D- c (AVERAGE OUTPUT VOLTAGE) 2.340 Es 0.955 E m D -c .333 2.340 Es 0.955 E m D -c .250 1.273 Es 0.900 Em D -c .250 0.900 Es 0.900 Eh/ D -c PEAK INVERSE VOLTAGE 2.450 Es 1.045 ED -c 2.450 Es 1.045 ED -C 2.280 Es 1.790 ED -c 2.280 Es 2.530 ED -c DESIGN OF CIRCUITS Mechanical Tube supports should be of sufficient size to carry the tube weight and should be designed to provide sufficient electrical contact. Ignitrons are mechanically very strong and will withstand moderate shock. In general, however, excess vibration should be avoided. An adequate water supply of reasonably clean water should be available. Waters that are suitable for drinking are in general suitable for cooling tubes. In fact, such water is not contaminated in the passage through the ignitron water jacket and may be used for plant purposes. Water containing considerable acid or foreign matter which might clog the water jackets should be avoided. Stainless steel is immune to the effects of most corrosive waters, but is subject to attack by waters containing chlorides. If the chloride ion concentration exceeds 20 parts per million the water should be considered as suspicious and an analysis made to determine its corrosiveness. An excellent reference on the subject of water supplies is the United States Department of Interior, Geological Water Supply Paper 658. In general, local experience is one of the best guides as to the corrosiveness of water. Where highly corrosive waters are encountered, such as in mines, a heat exchanger may be employed of either the water -to -water or the water -to -air type. In such installations, corrosion may be minimized by the addition of 0.1 to 0.2 per cent by weight of sodium or potassium dichromate to the circulating water-cooling system. In general, tubes are connected in series when connected directly to water supplies, and in parallel when connected to heat exchanger units. The minimum water supply temperature must be such that the outlet temperature of the hottest rectifier does not exceed the values given under Technical Information for the voltage at which the unit is operated. The relation between water flow, temperature rise, and watts dissipated is as follows: Kilowatts = 263.5 X gpm X A C Electrical Electronic tubes of the ignitron type are power devices in exactly the same sense that transformers and rotating equipment are power devices and as a result adequate circuit breaker protection must be provided. In the case of the welder, the welding transformer acts in effect as a current limiting inductance. However, back-up or line protection in the form of fuses, contactors or breakers should be provided to remove the unit from the line in case there is a fault in the primary of the transformer. In the case of rectifiers, similar switch gear must be provided for the primary and, in addition d -c breakers are usually required in the output. The d -c breaker is required when several units are connected in parallel to form a common bus bar. In this case, arc back in one tube will permit direct current to be fed through the tube and transformer from the remaining units. These breakers may also be adjusted to limit the permissible overloads as is the case with any conversion apparatus. The primary breaker must be capable of interrupting the maxi- mum kilovolt -ampere of the supply system in case there is a short circuit directly across the primary terminals of the power transformer. Fig. 17 shows the schematic layout of a unit substation including circuit breaker equipment. Special switch gear for these requirements have been developed by the General Electric Company and reference should be made through the nearest General Electric office or the General Electric Company, Schenectady, New York. K-9033540 A-C SWITCHGEAR POWER TRANSFORMER IGN ITRONS D-C SWITCHGEAR AND DISTRIBUTION Fig. 17-Line Diagram Showing Component Parts of Ignitron Rectifiers 12-6-44 ETI-108 PAGE 11 4-45 FERNICO METAL ALLOY AND PYREX TYPE GLASS SEAL FLOW -DIRECTING VANES DEIONIZATION BAFFLE SPLASH -HOOD BAFFLE AUXILIARY ANODE WATER CONNECTION WATER CONNECTION STAINLESS -STEEL WATER JACKET MAIN GRAPHITE ANODE STARTING IGNITORS MERCURY POOL CATHODE TUBE SUPPORT AND CATHODE CONNECTION VACUUM "SEAL -OFF" Fig. 19-Cross-Sectional View of the Sealed Ignitron for Power -Rectifier Service ETI-10 8 PAGE 12 4-45 IGNITOR EXCITATION CIRCUITS Ignition power is usually provided by (1) diverting a part of the load current through the ignitor or (2) by a separate -excitation system which is independent of load current. The self or anode firing system (see Fig. 18) uses a thyratron to determine the instant of firing and to prevent reverse current from flowing through the ignitor. THYRATRON FG-95 Ul .00Irnf GRID CONTROL VOLTAGE WELDER SERVICE ALINE P.I0IGNITRON 22 OV 2 44 0 V 4 550V 5 OR ing the charging period, ignitor current wave shape, and output characteristics are shown in Fig. 20B. APACITOR VOLTAGE CAPACITOR CHARGIN VOLTAGE IGNITOR CURRENT EXCITATION CIRCUIT CHARACTERISTICS 50 1..10°15° CURRENT CONDUCTION PERIOD FOR 35. SINGLE WAY CIRCUITS 30 6\ANODE VOLTAGE 120 400 300 0 200 2 100 0 EQUIVALENT IGNITOP RESISTANCE 2,, 11 10 20 30 40 50 IGNITOR CURRENT IN AMPERES. K-9033542 12-6-44 Fig. 18-Self or Anode Excitation in which a Part of the Load Current is Diverted through the Ignitor HOLDING ANODE VOLTA GE ,..,HOLDING ANODE CURRENT A series resistor is used to reduce the duty on the thyratron by limiting the current which passes through the thyratron during the time between ignition and pickup of the main anode, or when misfiring occurs. The recommended value of this resistance depends upon the anode volage for which the set is designed to operate. It is usually 4 ohms for 600 volts and less, and approximately 50 ohms for 2300 volts. It is the simpler and, more direct system and is used in the majority of welder applications. In 'rectifier work the loads, even on large capacity sets, frequently reach such low values that the available current is below the required ignition current. As a result, there tends to be some flicker- ing of the output voltage which may be objectionable if lamps are a part of the connected load. Consequently, most rectifiers are equipped with a separate excitation system which fires the ignitor each cycle and is independent of the load. There is a small auxiliary anode near the cathode pool of each rectifier ignitron (see the cross sectional view, Fig. 19, page 11) which provides for cathode spot excitation current in case the main anode current falls below the stable value which is about 3 amperes. Fig. 20A shows one form of separate -excitation system in which a capacitor is discharged through a phanotron during one part of the cycle and discharged through a thyratron into the ignitor at the instant it is desired to carry current. The circuit is relatively simple and direct. Complete details show - PHA NOTRON FG-32 THYRATHON FG-105 OR FG-172 RID PEAK ER VOLTAGE RID CURRENT IMMO 1.10°15° K-9033552 (Sheet 2) PPROXIMATE USEFUL RANGE FOR SHIFTING PHASE ANGLE 12-11-44 Fig. 20B-Voltage, Current and Phase Relationships for Three -Phase Single Rectifier Circuit In another form of separate -excitation equipment magnetic circuits in conjunction with saturating reactors have been arranged to produce the required ignitor peak current. Fig. 21 shows the con- nections in this system. Special reactors are required both for the saturating reactor which determines the wave shape and for the saturable reactor which determines the phase position. IMPULSE FORMING NETWORK PHASE SHFTING SATURABLE REACTOR FOR CONTROL CONTROL OF OUTPUT VOLTAGE- IGNITOR PHASE IS CONTROLLED BY VARYING THE CONTROL DIRECT CURRENT EITHER MANUALLY OR THROUGH A VOLTAGE REGULATOR IN RESPONSE TO D-C OUTPUT VOLTAGE. K-9033546 12-6-44 AUX. ANODE SUPPLY Fig. 21-Magnetic Separate Excitation Circuit for Firing Diametrically Opposite Tubes Circuit constants for welder applications have been described previously and are essential to the CATHODE BUS ignitron tube in so far as the demands do not exceed K-9033552 (Sheet 1) 12-11-44 the tube ratings. The ignitrons in the back-to-back F'g. 20A-Capacitor-Inductance Separate Excitation Circuit connection operate simply as a switch. ET1-108 PAGE 13 4-45 RECTIFIER CONSIDERATIONS In the case of the rectifier, various circuit rela- tions in terms of d -c output, voltage and current wave shapes are given in Figs. 7 through 16. The constants give the theoretical output voltage at no- load conditions. Actually all rectifiers have a cer- tain amount of regulation usually of the order of 6 to 7 per cent depending on the reactance in the power transformer and a -c supply system. Voltage regulation in the rectifier is due to the increase in tube drop with increasing current, the IR drop in the transformer and the voltage loss due to commu- tation. During the commutation period, current is transferred from one winding to another and for a short time both windings conduct giving an output voltage which is the average of the two phase volt- ages rather than the higher. This effect is shown in Fig. 22. 0-C VOLTAGE /R \ ANODE CURRENT K-9033543 1.- COMMUTATING PERIOD 12-6-44 Fig. 22-Wave Diagram Showing Voltage Loss Due to Commutation I = Current at the start of commutation. This is equal (essentially) to the direct current in the case of simple rectifiers, or to the proportion carried if there are several simple rectifiers in the unit. The theoretical average or d -c output voltage of a rectifier is: Edo = P/7 N/2 Es (sin it/P) where Es = the rms value of the transformer secondary line to neutral voltage For the normal delta double - Y circuit where P = 3; Edo = 3/7A/2 Es (sin ir/3) = Es = 1.17E5 27r If it is desired to find the secondary voltage required to supply a given output, the theoretical d -c voltage is first determined by adding the resistance, commutation and tube losses to the full load output voltage. For example, assume a 300 -kilowatt, 3 -phase double -Y, 275 -volt rectifier. Then, The average voltage loss due to commutation is: E. = pfLI volts (d -c) (1) where p - Number of phases in each simple rectifier. Circuits shown in Figs. 7, 8, 9, 14 and 16 are simple single - way (current conducted in only one direction in transformer winding connected to tube) rectifiers having 2, 2, 3, 4, and 6 phases respectively. Rectifiers formed of simple units such as Figs. 10 and 15 have "p" factors corresponding to the simple rectifier, i.e. p = 3 and p = 2. f = Frequency in cycles per second. L = Commutating inductance in henrys. It is determined from the transformer secondary reactance (XL = 271-fL) of any two successively conducting phases in a sim- ple rectifier, and is most easily determined by short circuiting the primary and determining the voltage to force rated secondary current through any two successively conducting phases. Then, the im- pedance, E Z = - ohms I and if the resistance is known, XL may be determined from Z = A/R2 XL2 D -c voltage at full load = 275 v IR voltage loss in transformer Y at 545Assip = 4.5 v Commutation voltage loss at 545Amp = 10.5 v Tube arc drop = 15.8 v Summation: Edo = 305.8 v and 305.8 = 1.17 E Or Es = 30c.8 = 261 v (rms) 1.17 The regulation is due to the IR loss in transformer = 4.5 v Commutation loss = 10.5 v Change in tube drop (0 to 545Amp) = 2.4 v Total loss in voltage = 17.4 v and the percentage regulation: Reg = (no load voltage - full load voltage) full load voltage X 100 loss in voltage full load voltage X 100 = 17.4 275 = 6.25% Circuits other than those shown for rectifier or welder service may be desirable for a particular use. In general, the tube requirements for such circuits and service may be determined by writing to the Electronics Department, Tube Division, Schenectady 5, New York. ET1-108 PAGE 14 4-45 MAINTENANCE AND OPERATION There is very little maintenance in the usual sense of the word that is required for ignitron tubes. The tube should be clean and accumulations of waste should not be allowed to collect around the anode insulation bushing. (Caution: All power should, of course, be removed prior to any cleaning operation.) In case water jackets become clogged with silt, they can, of course, be cleaned out with the usual cleaning solutions. Operational failures of ignitron tubes which are due to the tubes themselves are usually the result of air leakage, gas, or ignitor failure. Gas and air leakage most frequently result in arc back and thus is usually accompanied by severe flashing or showers of red-hot sparks in the anode seal. Such failures can be indicated in general from a visual inspection of the equipment while it is operating. Spare tubes may be checked for vacuum by means of a spark coil of the make and break type. Ignitor failure where the tip has been burned off results in misfire. This fault can be detected by connecting an ohmmeter between the ignitor lead and cathode terminal and slightly tipping the tube to lower the mercury level on the ignitor. The normal tube may be tipped approximately 20 degrees from vertical before the ignitor -mercury contact breaks. Ignitor wetting sometimes occurs in tubes which have car- ried excessive current. In this case, the cathode spots form on the side walls of the tube and vaporize metal into the mercury pool to cause wetting. This metal in turn is re -evaporated by the arc around the ignitor and since the arc starts each cycle at the ignitor, it tends to become coated with a layer of vaporized metal. This in turn is usually without an oxide for protection, and amalgamation with the mercury takes place. A simple check for this type of failure is again to connect the ignitor and cathode terminals to a resistance analyzer. As the tube is tipped slightly to withdraw the ignitor from the mercury, there should be a gradual increase in the ignitor resistance. If the ignitor is wet, the resistance will remain constant and then suddenly jump to a new and higher value. Operation at too -high water temperatures usually results in arc back in the case of the rectifier tubes, and extra conduction cycles in the case of the welder tube. Ignitron tubes, in common with most other electronic devices, operate under the instantaneous conditions which occur cycle by cycle. In general, the ignitron tube forms the closing switch in the circuit whether it is a welder or rectifier. Most faults, there- fore, appear when this switch is closed, and trouble in other parts of the equipment may frequently be considered as tube trouble. The simplest initial check is to replace the tube which seems in trouble with a spare tube. If additional work is required, a cathode-ray oscilloscope will be found almost invaluable. These units permit a visual observation of the voltage wave shapes across the tube and across component parts of the circuit. A knowledge of these wave shapes under normal conditions and a comparison under fault conditions usually gives a direct solution to the trouble. The General Electric Company is preparing a cathode-ray oscilloscope particularly suited for industrial electronic use. In- formation on this may be obtained by writing to the Electronics Department, Specialty Division, Syra- cuse, New York. In addition to a cathode-ray oscilloscope one of the small volt -ohm analyzers is useful in checking circuit constants. 1-46 (3M) Filing No. 8650 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. ET -T1470 Page 1 11-57 IGNITRONS Service Notes The anode of an ignitron operates at red heat under normal loads. To prevent overheating of the inner -envelope walls at shutdown periods, cooling -water flow should be continued after anode power is removed. In the case of temperature -controlled tubes, where the water flow is maintained by the temperature -control switch, proper water flow will be assured provided the control -switch power supply is not removed simultaneously with the anode supply. The following table indicates the minimum time during which water flow should continue after removal of anode power: Ignitron Type GL -5552-A GL -5553-B GL -5554 GL -5555 GL -5564 GL -5630 GL -5822-A GL -6228 GL -6509 GL -6878 After Removal of Anode Voltage Continue Water Flow for 15 Minutes 30 Minutes 15 Minutes 30 Minutes 1 Hour 30 Minutes 15 Minutes 1 Hour 30 Minutes 1 Hour Temperature -Controlled Ignitron Type GL -6346 GL -6347 GL -6348 GL -6512 GL -6513 GL -6514 GL -6515 After Removal of Anode Voltage Maintain Power on Control Switch for 15 Minutes 15 Minutes 30 Minutes 15 Minutes 30 Minutes 30 Minutes 1 Hour ELECTRONIC COMPONENTS DIVISION GENERAL ELECTRIC Schenectady 5, N. Y. Current Average, Amperes Peak, Amperes 0.25 35,000 22.4 ... 50 200 56 700 70 1500 113 900 140 1600 1800 200 6000 207 1800 275 2000 350 2000 355 4000 IGNITRONS Recommended Types and Selection Chart Values listed are maximum and do not necessarily apply concurrently. Refer to data sheet for detailed technical information for a particular application. Demand KilovoltAmperes . . Voltage Peak Inverse, Volts 10,000 RMS Supply, Volts .... 300 .... 600 .... 20,000 600 1500 600 .... 1500 .... 1200 2100 2400 1200 500 600 .... 2100 .... 2000 20,000 500 2400 2100 2400 .... 4000 .... .... 4000 .... 2400 1500 600 Class of Service* Capacitor Discharge DC Short Circuiting AC Control Capacitor Discharge Power Rectifier Continuous Duty AC Control Frequency -Changer Resistance Welding Power RectifierIntermittent Duty Frequency -Changer Resistance Welding Power RectifierIntermittent Duty AC Control Power Rectifier- Continuous Duty AC Control Power RectifierIntermittent Duty Frequency -Changer Resistance Welding Power Rectifier Continuous Duty (Railroad Service) AC Control Capacitor Discharge DC Short Circuiting Power RectifierIntermittent or Continuous Duty AC Control Power Rectifier- Continuous Duty Inverter- Continuous Duty Power Rectifier- Continuous Duty Power Rectifier - Continuous Duty (Railroad Service) AC Control Frequency -Changer Resistance Welding Power RectifierIntermittent Duty Water Temperature, Centigrade - Inlet Outlet Min 1 Max Max Natural Convection 10 (Clamp 75 (Clamp - tempera- tempera- ture) ture) 35 40 45 0 30 40 10 40 - 10 10 30 30 35 - 6 50 60 -15 50 0 30 40 10 40 - 30 50 60 35 40 45 6 -15 -10 50 50 55 60 - 30 45 55 10 45 55 30 45 55 0 30 40 10 40 - ET -71507 Page 1 10-58 Tube Type GL -7171 GL -5550 GL -5630 GL -5551-A (Tempera ture-control bracket) GL -6346 (Integral temperature control) GL -5822-A (Tempera ture-control bracket) GL -6511 (Integral temperature control) GL -5554 GL -6512 (Integral temperature control) GL -5552-A (Tempera ture-control bracket) GL -6347 (Integral temperature control) GL -6509 GL -6228 G L-5555 GL -5788t GL -6513 (Integral temperature control) GL -6514 (Integral temperature confront GL -6958 GL -7042 (Integral temperature control) GL -6504 GL -5553-B (Temperature control bracket) GL -6348 (Integral temperature control) (over) GENERAL ELECTRIC ET -T1507 Page 2 10-58 IGNITRONS (Coned) Current Average, Amperes Peak, Amperes Demand Kilovolt- Amperes Voltage Peak Inverse , Volts RMS Supply Volts, Class of Service* Water Temperature, Centigrade Inlet Outlet Min I Max Max Tube Type 670 2500 700 (Max Peak .... Anode.... Voltage) Power Rectifier- Continuous Duty 675 2500 .... 4000 .... Power Rectifier Continuous Duty (Railroad Service) 30 40 50 GL -7179 10 40 50 GL-7180 (Integral temperature control) 30 40 55 GL -6878 AC Control 850 3600 4800 2100 2400 Power Rectifier- Continuous Duty 900 .... 4800 .... 600 AC Control 0 0 40 50 -60 GL -5564 GL -6515 (Integral - temperature control) 0 30 40 GL -7151 * The tubes isted are rated for the classes of service shown. However, each tube is capable of operating at other classes of service not shown here For a specific application, please consult your Power Tube Department sales representative. t Lower water pressure drop and more baffling than the GL -5555. Lower water pressure drop and more baffling than the GL -6513. ELECTRONIC COMPONENTS DIVISION GENERAL ELECTRIC Schenectady 5, N. Y. GL-5552/FG-235-A DESCRIPTION AND RATING ETI-109B PAGE 1 12-50 SPECIAL DESIGN FEATURES 1. Stainless -steel, seam -welded construction 2. Uniform water cooling 3. Strong, compact design 4. Easy to install IGNITRON 5. Copper terminals 6. Flexible anode lead 7. Mercury -pool cathode allows extremely high instantaneous currents to be passed through the tube without damage. DESCRIPTION The ability of this tube to carry very high peak currents for short periods makes it especially suited to welder -control service. In this service, two tubes in the inverse -parallel connection will control 1200 kilovolt -amperes at voltages of 250 to 600 volts and over the frequency range of 25 to 60 cycles. Ease of installation, economical use of space, and reliability of operation are assured by design features inherent in the steel -jacketed construction. The GL-5552/FG-235-A is similar to the GL5553/FG-258-A and the GL-5551/FG-271. All of these tubes can be used for a wide range of applications where welds are made infrequently or in rapid succession. The current range required for the welding operation determines which tube to use. Another factor, of course, is the nature of the material to be welded. Low -resistance materials, such as the aluminum alloys, require more current than such high -resistance metals as stainless steel. The GL-5552/FG-235-A ignitron is equivalent to a 600 -ampere magnetic contactor. GENERAL ELECTRIC Supersedes ETI-109A dated 10-47 GL-5552/FG-235-A ETI-10911 PAGE 2 12-50 *TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Type cathode excitation Type cathode spot starting Number of electrodes Main anodes Main cathodes Ignitors Arc drop at 6800 peak amperes Arc drop at 440 peak amperes Cathode excitation requirements Ignitor voltage required to fire Ignitor current required to fire Starting time at required voltage or current cyclic ignitor 1 1 1 28 volts 14 volts 200 volts 30 amperes 100 microseconds Mechanical Data Envelope material Over-all length, maximum Over-all width exclusive of water connections, maximum Net Weight (See outline drawing for details). Type of cooling Characteristic for water cooling at rated minimum flow Water temperature rise, maximum Pressure drop, maximum Thermal Water cooling Maximum outlet water temperature Minimum inlet water temperature Minimum water flow MAXIMUM RATINGS metal 274 inches 44 inches 8 pounds water 6 C 4.5 pounds per square inch 40 C 10 C 1.5 gallons per minute As Power Rectifier Tube (Intermittent Service) Maximum peak anode voltage Inverse Forward Maximum anode current Peak Average Maximum averaging time Surge Maximum duration of surge current Frequency range As A -c Control Tube (Two Tubes in Inverse Parallel) Voltage range Maximum demand Average current at maximum demand Maximum average current Demand at maximum average burrent Maximum averaging time at 600 volts rms Maximum averaging time at 250 volts rms Maximum peak surge current at 250 volts Maximum peak surge current at 600 volts 500 volts 500 volts 1600 amperes 100 amperes 6 seconds 6000 amperes 0.15 second 25-60 cycles per second 250 to 600 volts rms 1200 kilovolt -amperes 75.6 amperes 140 amperes 400 kilovolt -amperes 5.8 seconds 14.0 seconds 13450 amperes 5600 amperes Ignitor Maximum voltage Positive Negative Maximum current Peak Root mean square Average Maximum averaging time 900 volts 5 volts 100 amperes 10 amperes 1 ampere 5 seconds Note 1-RMS demand voltage, current, and kilovolt -ampere are all on the basis of full -cycle conduction (no phase delay) regardless of whether or not phase control is used. Note 2-For voltages below the minimum, the minimum voltage current rating applies. Completely revised. Note 3-With the use of log -log paper straight line interpolation between tabulated points may be used for other detailed ratings of: 1. Demand kilovolt -ampere vs average anode current. 2. Maximum averaging time vs anode voltage. GL-5552/FG-235-A CURVES K -69087-72A217, K -69087-72A218 AND K -69087-72A219 MUST NOT BE USED FOR INTERMITTENT RECTIFIER SERVICE ET1-1096 PAGE 3 12 50 10000 8000 6000 I I I I I I I I 11 I 1111 1 I I I KILOVOLT -AMPERE VS AVERAGE CURRENT RATING 250 TO 600 VOLTS CURVE NO I 4000 yr 2000 w a. t- 1000 800 0 z 600 0 400 GL-5553/FG-258-A GL-5582/FG-235-A GL-5550/GL-415GL -271 200 100 10 \20 40 60 80 no 200 400 AVERAGE ANODE CURRENT IN AMPERES PER TUBE K -69087-72A217 (New drawing) FIG. 1 600 800 1000 3-31-48 10000 8000 6000 4000 2000 4,40 14/s. DEMAND CURRENT VS PERCENT DUTY AT 250 VOLTS RMS CURVE NO 2 5'4434,60 SON GL-5553/FG-258-A -5552/FG-23 5-A 1000 800 600 400 Os. GL-5551/FG-271 GL-5550/GL- 415 200 100 2 4 680 20 40 DUTY IN PERCENT 2 TUBES CONNECTED IN INVERSE PARALLEL K -69087-72A218 (New drawing) FIG. 2 60 60 100 3-31-48 GL-5552/FG-235-A ETI-1093 PAGE 4 12-50 1000 800 DEMAND CURRENT VS PERCENT DUTY AT 500 VOLTS RMS CURVE NO. 3 600 WITHOUT PHASE CONTROL 400 EMIIMIIIIIIIIIIIIIMIIIIEIINIIIII..I.11I1./41fOktL. -.5553/FG-258-A 200 11111E191 4,,, MEM ../sOL-5552/FG-235-A OS ------iii.i.i.i.i.i.i.i.ik IN M gim Nos, MOO mommliirdithesL4:5551/FG-271 800 600 ...... 16, ...I..l.l..i. 400 Illiillos.GL-5550/GL-4111111 IMMIINIIIIIMIM 4, 1116: ht.. 1 II. 200 12-50 (11M) IOU 2 4 6 8 10 20 40 DUTY IN PERCENT 2 TUBES CONNECTED IN INVERSE PARALLEL K -69087-72A219 (New drawing) FIG. 3 ALTERNATE HOLE MANUFACTURERS OPTION -f 4 Ic1:1AXT1"±32 3 MAX. iNDIA. HOLE ANODE TERMINAL CLEARANCE FOR RADIATOR 60 80 100 3-31-48 WATER MAX. OUTLET I 27 n MAX. 1 -;PIPE IGNITOR TERMINAL 0.250+.010" DIA. CATHODE TERMINAL (MAX ±32-'t 5y:1k-4 NOTE', ENVELOPE IS AT CATHODE POTENTIAL MAXA. EXHAUST TUBE ALTERNATEpOSITION MANUFACTURER upTION I ,j;± EXHAUST TUBE 90°± 25± 14" MAX. I 122 IOW WATER INLET 371± 7"4.f 16_32 DIA.HOLES i6 MAX 12 MrAX+. r 2 -32 10° K-5309175 OUTLINE GL-5552/FG-235-A 10-21-49 Tube Divisions, Electronics Deportment GENERAL ELECTRIC Schenectady, N. Y. GL-5555/FG-238-B DESCRIPTION AND RATING ET1.110A PAGE 1 10-50 SPECIAL DESIGN FEATURES 1. Stainless -steel, seam -welded construction 2. Uniform water cooling 3. Strong, compact design 4. Easy to install IGNITRON 5. Copper terminals 6. Flexible anode lead 7. Mercury -pool cathode allows extremely high instantaneous currents to be passed through the tube without damage. DESCRIPTION This steel -jacketed ignitron is designed for rectifier service in the 125-, 250-, 600-, and 900 -volt d -c power fields. The GL-5555/FG-238-B is used for rectifiers rated up to 1000 kilowatts depending on the number of ignitrons used, the output voltage, and the circuit. This tube is also rated for 2400 -volt resistance welder -control service and has a capacity of 2400 kilovolt -amperes in this service. Continuous aver - age current rating is 200 amperes per tube in rectifiers rated up to 1000 kilowatts. Arc losses are low. Phase control of the ignitron impulses permits voltage control of the rectified output. Excitation of the small auxiliary anode stabilizes the cathode spot for very small anode currents. Two ignitors, only one of which is used at a time, assure long life. GENERAL ELECTRIC Supersedes ETI-1 10 dated 4-45 GL -5555 /FG-238-13 ET1 -110A PAGE 2 10-50 TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Cathode excitation Cathode spot starting Number of electrodes Main anodes Main cathodes Auxiliary anodes Ignitors Arc drop at 600 peak amperes Cathode excitation requirements Ignitor voltage required to fire Ignitor current required to fire (See curve for details) Excitation arc current required, minimum Excitation arc -drop voltage Excitation arc open -circuit voltage, minimum cyclic ignitor 1 1 1 2 16.2 =0.5 volts 150 volts 40 amperes 8 amperes 9 =0.5 volts 55 volts a -c Mechanical Data Envelope material Net weight Type of cooling Characteristics for water cooling Water temperature rise, maximum Pressure drop at 3 gallons per minute, maximum metal 25 pounds water 45 C 6 pounds per square inch Thermal Water cooling Maximum outlet water temperature Peak inverse anode voltage =900 Peak inverse anode voltage =2100 Minimum inlet water temperature Minimum water flow at continuous rated average current Minimum water flow at no load 60 centigrade 45 centigrade 6 C 3 gallons per minute 1 gallons per minute MAXIMUM RATINGS As Power Rectifier Tube* Maximum peak anode voltage Inverse Forward Maximum anode current Peak Average Continuous 2 hours 1 minute Surge Maximum duration of surge current Frequency range *Ratings are for zero phase -control angle. As A -c Control Tube Two tubes in Inverse parallel Voltage Maximum demand Average current at maximum demand Maximum average current Demand at maximum average current Maximum averaging time at 2400 volts Rms Maximum surge current 900 900 1800 200 400 12000 2100 volts 2100 volts 1200 amperes 150 amperes 300 amperes 9000 amperes 0.15 seconds 25 to 60 cycles per second 2400 Rms volts 2400 kilovolt -amperes 135 amperes 207 amperes 1105 kilovolt -amperes 1 66 seconds 6000 peak amperes TECHNICAL INFORMATION (CONT'D) Ignitor Maximum voltage Positive Negative Maximum current Peak Root mean square Average Maximum averaging time Starting time at required voltage or current Auxiliary Anode Maximum current Peak Average Maximum averaging time Rms Maximum peak forward voltage Maximum peak inverse voltage Main anode conducting Main anode not conducting CL-5555/FG-238-B ETI.110A PAGE 3 10-50 anode volts 5 volts 100 amperes 15 amperes 2 0 amperes 10 seconds 100 microseconds 20 amperes 5 amperes 10 seconds 10 amperes 160 volts 25 volts 160 volts GL-5555/FG-238-B 21011,1111 ,1.11/ k14L 11i4111 111111411.0101111111.1.11 cazin 1.111/1111111111E. smi i1.111.1111/1111111 IMO EIRM1111111.1 211111,1:1216 GL-5555/FG-238-B ELEMENTARY CIRCUIT FOR CAPACITOR FIRING 10:11,74/1,1 1:11.111 A AEA /M111111MLI IMMIEN !WC, ri LIENT1 MMMMMM 1111111 ). DI ii OF.11. Ii' 11 L/Ii1111:0J EFLMiLLWItINIIIEN 1111Frr MEMi, 11111111.5 MEND.' kil SEMI,. EMIL:AL 141.11MMO1 EMIL- 11111111111't 1m11o1MnIvUrii Ir ki k A ILA a Si 111 SIMI "ai1dnC11PI1AIiii AO rorc 1111..e± NIIIM101; _ MMINOr.NawlVt NEER r! ME MM I kj 17 1-1 1. IMMENk II, k 111 111111i1E- I 14.1111 I 41, K-9033525 FIG. 1 10-25-50 GL-5555/FG-238-B ELEMENTARY CIRCUIT FOR ANODE FIRING FUSE IlLY2111:11USLMIL11/3.!/Ell A 1141 MMM THYRATRON GNITRON K-9033883 4New drawing. 1 r-1 MAIN MI 1.1 L LIVIC wital 1111E111 IT FIG. 2 4411 MMMMM 6-14-45 TYPICAL VALUES OF R ANODE VOLTAGE = 600 VOLTS OR LESS - 4 OHMS ANODE VOLTAGE = 601 TO 1000 VOLTS - 10 OHMS ANODE VOLTAGE = 1001 TO 1500 VOLTS - 20 OHMS ANODE VOLTAGE = 1501 TO 2000 VOLTS - 35 OHMS ANODE VOLTAGE = 2001 TO 2400 VOLTS - 50 OHMS K-9033528 4Revised drawing. FIG. 3 10-25-50 GL -5555 /FG-238-B ETI-1 10A 22 PAGE 4 10-50 20 18 I- 16 O 0a. 14 0 5 12 10 8 6 0 200 400 600 800 1000 1200 1400 LOAD CURRENT IN PEAK AMPERES PER TUBE FG-238-B ARC DROP, OUTLET WATER TEMPERATURE -40 C TO 60 C, WATER FLOW -3 GPM K-6917495 FIG. 4 8-25-44 FG -238-B FG -259-B 1000 900 800 rn 700 IMk' 600 2 500 F FC 4 404 rn - r MF 300 rn 0 200 cC) 0 rn 0 rn 2 3 10 20 30 40 50 60708090 100 in DUTY- PERCENTAGE TWO TUBES CONNECTED IN INVERSE PARALLEL FG-238-B IGNITRON; DEMAND CURRENT VS PERCENTAGE DUTY AT 2400 VOLTS RMS, MAX OUTLET WATER TEMP 30 C, MIN WATER RATE 3 GAL/MIN, WELDER CONTROL SERVICE K-8074661 FIG. 5 9,-26-44 t GL -55 5 5/FG-238-13 ET1-1 10A PAGE 5 10-50 GL-5555/FG-238-B COMMUTATION LIMITS -1 -MINUTE LOADS INMIIMMMEMMIMIIIIIIIIIIIMP mmNommoommummicuirrernir . INIMEMEMENEMMII11111111661.11144N4111 i 1 111111111111 M 11 11 1;111/11T r v "w41c41r1n1.1r1i1e; 1m11r1rIits1c1 iIrI eYec1i1imm1i1n:1n!IIIeIIImI11m111u11111111l1i1ii1m11m111u1n119 I II 11 1.44.11N111011111 1111441161P11414111147411454111111111411111111111111111 N 111111111111 1111 1 MINIENCI111111111111111111111111111.1.=ILnliZ. 11 a 1,1:10111 I 11!".kElIJELILILWALLIAL3al3:11111111111111 1 1 11111111111111111 1 11111111111111111111111111111111111111111111111111111 III 1111 1111111111 El 11 IMIIIIIIMMEMININIIIIM1111111111111111111 111 I III 1 111111111 1111111 1 IMINNEENNIIIIIIII1111111111111111111111111 111 11111111111111 111 IIIIIMMIIIMIIIII111111111111111111111111111111111111 1111 111111111111111111 I NEIIIIIIIIMIIIII11111111111111111111111111111111111111111111111 1111 11 iminommiiiiimununiiiimilimii mum mum nu u II 1111111111111111111111111111111111111111111111111111111111111 1111111111 1111 1 IIIIME111111111111111111111111111111111111 111 11 11111 1111111111 1111 11 1 tunmumminummunmounim III [gm' !avail 111 11 ummomumrimilimmullumoup IIIIIIIIIIIIIIIIIIIII M =11= .1011.MM=1 - 17177771 '' ' B_=E=E .........,...." .............. MeammE MMWMOIMMIOAVMM o , ............... ....... 1111 mmmmmmmmwaimmmmmwmvma =m- r (V IMOIMMII INIIIIIIMIIMMIII . UM.. lllllII111111111 IMIIMMI111111111111111M11111111111111111111 11 MM mMMMmMMmMMmMMmMMuuIMmMmIML 111 IIIIUII1MLI=1MIOMM1IM1IMMS1INIIU1MMIM1MIIN1MMI1US1M`lMMMUMIMIMEMIWII\ffMiIIMMOOMMOTMMr . \ I%' W..M1.1..V. 1J. ; qui I 1111 l 91 cul 11 nennecu nun limsommEmmemmammunumv5 1111111 9n r 1 li U. all I I llll 11 11111 '7 3 -I q ii va 11 i, I II I l 11111411 1.11111111; 11 MMMEMENEMMMIN11111111111111111111111111111111111111111111 WM 11111111111111111111111111111111111`, IIMININNIIIIIIIIIMIIIIM1111111111111111111111111111111111111111111111111111111EMMEMMEN1111111111111111111111111111Ill IP MLIIIIIIIVIIVJAPi 'J MMENIMENEMMUMMINMII1111111111111111111IMM1111111111111.MBEIWMIEBIBINIIIIIIIIIIIIIII 1111111111111M13111111111141 MMUUMMEMiiiiMIEM11111IIIIIIIIIIII1111111111111111111111111 IMMEMEMINWINNOMMIEMIHNI Milli 111111111111111111411 1 INIMEN1111111111111.1111111111111111111111111 1111111111111111111111111111111111111115M1711=7,1111111111M11111111111111111111111111111 mimmisiiiiiimininiimmmo III Humom in viiimnimmosoulimmilinilacqnii ill 1111 11111HIIM11111111111 MEMENIIIIIIIIHM11111111111111111 1 1 1111111111 III III IIIIIMENIIIIIII1111111111111111111111111 1M1111111 111111i111111111111111 EIIIMMIIIIIP1111111111111111111911 1111119111!111 91 PIIIMENE1111119111111111!!!1111111119111111149110111/19111111199 - AVERAGE ANODE CURRENT IN AMPERES PER TUBE K -69087-72A180 New drawing. 11-29-48 GL-5555/FG-238-B COMMUTATION LIMITS -2 -HOUR LOADS INEM UI II CI .39-11111 II- 1 1 IA 3 lir111-1' I : 3 ee - _tk (5 Al AMPERES O a. 'ME 'TM 1 1.11M .M1= ! Nimma. 0 III NEMS: rAti&ammmmm = .. ........ 711- Min -`11 ,11. "12!!' U11W-m-W1111111L 41111 1111111 I 11111h1111111 smacm,rML- Tri111111 AILWILR7.01W...K.11111111111 1111 111111MMUNIDW1111111 r111111111111111 MOM TaktaliVali Ib MIN MEM K -69087-72A181 New drawing. 111111110111. m=mMIFIE 11111=1 sic weirerincmr-azai viii MIN 411 5 AVERAGE ANODE CURRENT IN AMPERES PER TUBE 495 en 1. 11-29-48 GL-5555/FG-238-B ET1- 110A PAGE 6 10-50 -2" DIA. 16 SERIAL NO. CUT -AWAY VIEW OF GL-5555/FG-238-B IGNITRON *OUTLINE GL-5555/FG-238-13 IGNITRON 1 8-32 ANODE TERMINAL 22-1"..1.14" DIA. WATER OUTLET CONNECTION I" TSEMI-FINISHED BRASS UNION,CRANE C0.4522 OR EQUIV. k FURNISHED A WITH MALE PART ONLY 1216- 4-r 4 4 A2--11'26 IN 2783"±2 716-2174.2 1416+-8 Is IGNITOR NO.1 TERMINAL., DIA 16 CATHODE TERMINAL K-5344658 4 Revised drawing. 1050 (11M) 14.1" 4-16 MAX. VARIATION ±3° -"±3-" AUXILIARY 16 32 ANODE TERMINAL -4-4, IGNITOR NO.2 TERMINAL NOTE: ONE IGNITOR USED AT A TIME 9-22-48 Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL-5553/FG-258-A DESCRIPTION AND RATING ETI-111B PAGE 1 3-50 SPECIAL DESIGN FEATURES 1. Stainless -steel, seam -welded construction 2. Uniform water cooling 3. Strong, compact design 4. Easy to install IGNITRON 5. Copper terminals 6. Flexible anode lead 7. Mercury -pool cathode allows extremely high instantaneous currents to be passed through the tube without damage. DESCRIPTION The ability of this tube to carry very high peak currents for short periods makes it especially suited to welder -control service. In such service, two tubes in the inverse -parallel connection will control 2400 kilovolt -amperes at voltages of 250 to 600 volts over the frequency range of 25 to 60 cycles. It may also be used for conversion in low -power circuits. Ease of installation, economical use of space, and reliability of operation are assured by design and construction features inherent in the steel jacketed construction. ARevised. The GL-5553/FG-258-A is similar to the GL5552/FG-235-A and the GL-5551/FG-271. All of these tubes can be used for a wide range of applications where welds are made infrequently or in rapid succession. The current range required for the welding operation determines which tube to use. Another factor, of course, is the nature of the material to be welded. Low -resistance materials, such as aluminum alloys, require more current than such high -resistance metals as stainless steel. The GL-5553/FG-258-A ignitron is equivalent to a 1200 -ampere magnetic contactor. GENERAL ELECTRIC Supersedes ETI-11 1 A dated 10-47 GL-5553/FG-258-A ETI-111B PAGE 2 3 -50 TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Cathode excitation-Cyclic Cathode spot starting-Ignitor Number of electrodes Main anodes Main cathodes Ignitors Arc drop at 13,600 peak amperes Arc drop at 1115 peak amperes Cathode excitation requirements Ignitor voltage required to fire Ignitor current required to fire (See Curve for details) Starting time at required voltage or current 1 1 1 36 volts 17 volts 200 volts 30 amperes 100 microseconds Mechanical Data Envelope material-Metal Net weight Type of cooling-Water Characteristics for water cooling at rated minimum flow Water temperature rise, maximum Pressure drop, maximum 21 pounds 9 degrees 5.1 pounds per square inch MAXIMUM RATINGS AS A -C CONTROL TUBE Two tubes in inverse parallel Voltage range Maximum demand Average current at maximum demand Maximum average current Demand at maximum average current Two tubes in inverse parallel Maximum averaging time at 250 volts rms Maximum averaging time at 600 volts rms Maximum surge current at 250 volts rms Maximum surge current at 600 volts rms 250 to 600 rms volts 2400 kilovolt -amperes 192 amperes .355 amperes 800 kilovolt -amperes 11 seconds 4.6 seconds 27,000 peak amperes 11,200 peak amperes Note 1-RMS demand voltage, current, and kva are all on the basis of full -cycle conduction (no phase delay) regardless of whether or not phase control is used. Note 2-For voltages below the minimum, the minimum -voltage current rating applies. Note 3-With the use of log -log paper straight line interpolation between tabulated points may be used for other detailed ratings of: 1. Demand kva vs. average anode current. 2. Maximum averaging time vs anode voltage. IGNITOR Maximum voltage Positive Negative Maximum current Peak Root mean square Average Maximum averaging time Thermal water cooling Maximum outlet water temperature Minimum inlet water temperature Minimum water flow AData completely revised. 900 volts 5 volts 100 amperes 10 amperes 1 ampere 5 seconds 40 C 10 C 3 gallons per minute 10000 8000 6000 4000 1111111111111 I 1 I 1111111 KILOVOLT-AMPERE VS AVERAGE CURRENT RATING 250 TO 600 VOLTS CURVE NO I 1 2000 a. 9g 1000 800 0 600 0 400 GL-5553/FG-2584 GL -5552/F03 -235-A 200 GL -5550/GL.""\5551G -27I GL-5553/FG-258-A ETI-11113 PAGE 3 3-50 100 20 40 60 80 00 200 400 AVERAGE ANODE CURRENT IN AMPERES PER TUBE K -69087-72A217 (Revised) FIG 1 600 800 1000 3 -31 -48 10000 8000 6000 4000 DEMAND CURRENT VS PERCENT DUTY AT 250 VOLTS RMS CURVE NO 2 144, 2000 GL-5553/FG-258-A GL-5552/FG-23 5-A 1000 800 600 400 RR aeda, QS GL-5551/FG-271 GL-5550VGL-4 15 200 100 2 4 68 0 20 40 DUTY IN PERCENT 2 TUBES CONNECTED IN INVERSE PARALLEL K -69087-72A218 (New drawing) 60 80 100 3-31-48 GL-5553/FG-258-A ETI-111B PAGE 4 3-50 10000 8000 6000 - 4000 DEMAND CURRENT VS PERCENT DUTY AT 500 VOLTS RMS CURVE NO. 3 WITHOUT PHASE CONTROL `,.. 1, /Ei 41/0._GL-5553/FG-258-A NtE. ss 84.0 )../ GL-5552/FG-235-ANOS S'4.,. '.04,06, a 1000 800 600 -271 9GL-5551/FG .94. Oa 0z z 40 0 o GL-5550/GL-415 94b0Nos 200 3.50 (11M) Filing No. 8850 10 2 K.69087 -72A219 New drawing 4 6 8 10 20 40 DUTY IN PERCENT 2 TUBES CONNECTED IN INVERSE PARALLEL OUTLINE GL-5553-FG-258A IGNITRON ALTERNATE HOLE MANUFACTURERS OPTION 2J;m4x. ANODE TERMINAL 48" MAX. 1.62MDAIAX.. MAX... cl2,A. HOLE CLEARANCE RADIATOR 60 80 100 3-31-48 WATER OUTLET 1 M8AX DIA. 28c±i' 3" MAX. 24.1z PIPE 55 MAX' DIA. 17" MAX. I0G.N2IT5O0R"T±E.R0M1IN0A"L DIA.) 1 I WATER INLET 144 CATHOD TERMINAL 4 i" 14"-39 1 16-2 -+ EXHAUST TU :ALTERNATE POSITION MANUFACTURERS 4 - 16 OPTION) 2.mAx HOLES IB MAX. 4±A" NOTE: ENVELOPE IS AT CATHODE POTENTIAL EXHAUST TUBE 90.2 104 t. K-5340877 90°±10° 10-29-46 Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. FG-259-B DESCRIPTION AND RATING ETI-1 12 PAGE 1 4-45 SPECIAL DESIGN FEATURES 1 Stainless -steel, seam -welded construction 2. Uniform water cooling 3. Strong, compact design 4. Easy to install IGNITRON 5. Copper terminals 6. Flexible anode lead 7. Mercury -pool cathode allows extremely high instantaneous currents to be passed through the tube without damage. DESCRIPTION This steel -jacketed ignitron is designed, as is the FG-238-B, for rectifier service in the 125-, 250-, 600-, and 900 -volt d -c power fields. The FG-259-B is used for rectifiers rated up to 200 kilowatts depending on the number of ignitrons used, the output voltage, and the circuit. The FG-259-B is also rated for 2400 -volt resistance -welder -control service and has a capacity of 1200 kilovolt -amperes in this service. The FG- 259-B has a continuous average current rating of 100 amperes per tube for use in rectifiers rated up to 200 kilowatts. Arc losses are low. Phase control of the ignitron impulses permits voltage control of the rectified output. Excitation of the small auxiliary anode stabilizes the cathode spot for very small anode currents. Two ignitors, only one of which is used at a time, assure long life. GENERAL 0 ELECTRIC FG-2 5 9-B ETI-112 PAGE 2 4-45 TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Electrical Voltage drop At 100 amperes instantaneous anode current At 300 amperes instantaneous anode current At 600 amperes instantaneous anode current 12.6 volts 14.4 volts 17.3 volts Mechanical Cathode pool type Number of ignitors 2 Number of main anodes . 1 Typical flow....1.5 to Number of auxiliary anodes Type of cooling . . 1 water 3 gallons per minute Pressure drop at above flow Temperature rise with lower rate of flow 2 to 5 pounds per square inch Net weight, 150 amperes per anode. approx...13.5 pounds .6 centigrade Shipping weight, approx 22 pounds MAXIMUM RATINGS Rectifier Service-For Power Supply -Frequency 25 to 60 Cycles, Phase Retard =0 Maximum inverse and forward anode voltage 900 volts 2100 volts Maximum anode current Instantaneous . .900 amperes 600 amperes Average continuous current 100 amperes 75 amperes 2 -hour -average current over any 2 -minute period 150 amperes 112.5 amperes 1 -minute -average current over any 1 -minute period . 200 amperes 150 amperes Surge current, maximum duration 0.15 second 6000 amperes 4500 amperes MMaxiimnuimmouutlemt waitenr tleempterwatuareter temperature...660 centigrade centigrade 45 centigrade 6 centigrade Minimum water flow At continuous average anode current ... minuteminute ...... . . . 1.5 gallons per 1.5 gallons per At no load*. . minuteminute 0 5 gallon per 0.5 gallon per *For systems in which the flow of water is controlled by the load. Welder -Control Service-Ratings are for 2400 Volts Rms, Frequency 25 to 60 Cycles Maximum demand . Corresponding average anode current Maximum average anode current Corresponding demand . Maximum time of averaging anode current at 2400 volts, rms Minimum water flow Maximum outlet water temperature . Maximum surge current Maximum duration of surge current 1200 kva 75 amperes 113 amperes 600 kva . 1.50 seconds 1 5 gallons per minute 30 centigrade .3000 amperes .0.15 second Ignition Requirements (Ratings are the same for both Welder and Rectifier Service) Ignitor voltage Maximum instantaneous allowed, ignitor positive-same as anode voltage Maximum instantaneous allowed, ignitor negative 5 volts Ignitor current Maximum instantaneous allowed 100 amperes Maximum average allowed .2.0 amperes Time of averaging current . . . 10 seconds Maximum ignition time 100 microseconds TECHNICAL INFORMATION (CONT'D) Anode firing (See elementary circuit K-9033528) Maximum instantaneous ignitor potential required Maximum instantaneous ignitor current required Typical resistance added to ignitor circuit for anode firing At anode voltage of 600 volts or less At anode voltage of 601 volts to 1000 volts At anode voltage of 1001 volts to 1500 volts At anode voltage of 1501 volts to 2000 volts At anode voltage of 2001 volts to 2400 volts . Separate excitation (See elementary circuit K-9033525) Minimum volt-ampere requirements for separate excitation Firing systems are shown on K-9033529 150 volts .40 amperes ..4 ohms 10 ohms .20 ohms . .... 35 ohms 50 ohms Auxiliary Anode Requirements (Ratings are the same for both Welder and Rectifier Service) Maximum average current . Maximum inverse voltage With main anode conducting . ..... With main anode not conducting ..5 amperes 25 volts 150 volts FG-259-B ETI-112 PAGE 3 4-45 FG-259-B MINIMUM VOLT-AMPERE REQUIREMENTS FOR SEPARATE -EXCITATION FIRING SYSTEMS 500 FG-259-B ELEMENTARY CIRCUIT FOR CAPACITOR FIRING N 400 VD z 300 -J z 0 200 a - a' 0 I. - z (..n 100 0 10 IGNITOR K-9033529 20 30 CURRENT IN AMPERES FIG. 2 K-9033525 FIG. 1 11-15-44 FG-259-B ELEMENTARY CIRCUIT FOR ANODE FIRING 40 K-9033528 11-15-44 FIG. 3 I GNITRON 12-16-44 FG-259-B ETI-112 PAGE 4 4-45 22 20 18 tIn- 16 0 0 14 cr C.) 12 I0 8 6 0 100 K-6917493 200 300 400 500 600 700 800 LOAD CURRENT IN PEAK AMPERES PER TUBE FG-259-B ARC DROP, OUTLET WATER TEMPERATURE -40 TO 60 C, WATER FLOW -1.5 GPM FIG. 4 900 7-1-44 FG -238-B FG -259-B Is..6, %.k.c, 41, q 2./ 1000 900 0 800 rn 700 600 2 0 500 F 404 0 - MF 300 m 2SF 0 200 H 0z 3 10 20 30 40 50 60708090 100 DUTY- PERCENTAGE TWO TUBES CONNECTED IN INVERSE PARALLEL FG-259-B IGNITRON; DEMAND CURRENT VS PERCENTAGE DUTY AT 2400 VOLTS RMS, MAX OUTLET WATER TEMP 30 C, K-8074661 MIN WATER RATE 1.5 GAL/MIN, WELDER CONTROL SERVICE 9-26-44 FIG. 5 "16 13" 32 DIA. HOLE ANODE CONNECTION ..100 10.4 i, .r0it0O. ..,__. 9" f 16 SERIAL NO. WATER iIf"SOEUMTIL-EFTINCISOHNENDECBTRIAOSNS UNION, CRANE C0.4522 OR EQUIV.,ONLY MALE END FURNISHED. FG-259-B ETI-112 PAGE 5 4-45 MAX. _- FROM VERTICAL c_ INLET A Lij fr/31111i-j I,. 14MAX.SEA!L"M-OAFFX., 4 DIA. r .HOLES 16 IGNITOR CONNECTION , 14±16 K-5344767 OUTLINE FG-259-B IGNITRON AUXILIARY ANODE CONN. CATHODE ..1.4_CONNECTION 8-10-44 Electronics Department GENERAL @ ELECTRIC Schenectady, N. Y. 1-46 (3M) Filing No. 8850 GL-5551/FG-271 DESCRIPTION AND RATING ETI-113A PAGE 1 12-50 SPECIAL DESIGN FEATURES 1. Stainless -steel, seam -welded construction 2. Uniform water cooling 3. Strong, compact design 4. Easy to install IGNITRON 5. Copper terminals 6. Flexible anode lead 7. Mercury -pool cathode allows extremely high instantaneous currents to be passed through the tube without damage. DESCRIPTION The ability of this tube to carry very high peak currents for short periods makes it especially suited to welder -control service. It may also be used for conversion in low -power circuits and for intermittent rectifier service. Ease of installation, economical use of space, and reliability of operation are assured by design features inherent in the steel -jacketed construction. The GL-5551/FG-271 is similar to the GL- 5552/FG-235-A and the GL-5553/FG-258-A. All of these tubes can be used for a wide range of ap- plications where welds are made infrequently or in rapid succession. The current range required for the welding operation determines which tube to use. Another factor, of course, is the nature of the material to be welded. Low -resistance materials, such as aluminum alloys, require more current than such high -resistance metals as stainless steel. The GL-5551/FG-271 ignitron is equivalent to a 300 -ampere magnetic contactor. GENERAL ELECTRIC Supersedes ETI-113 dated_4-45 GL-5551/FG-271 ETI-113A PAGE 2 12 50 +TECHNICAL INFORMATION These data are for reference only. For design information, refer to specifications. GENERAL Electrical Data Cathode excitation Cathode spot starting Number of Electrodes Main anodes Main cathodes Ignitors Arc drop at 3400 peak amperes Arc drop at 176 peak amperes Cathode excitation requirements Ignitor voltage required to fire Ignitor current required to fire Starting time at required voltage or current cyclic ignitor 1 1 1 26 volts 13 volts 200 volts 30 amperes 100 microseconds Mechanical Data Envelope material Over-all length, maximum Over-all width exclusive of water connections Net weight Type of cooling Characteristics for water cooling at rated minimum flow Water temperature rise, maximum Pressure drop Thermal Water Cooling Maximum outlet water temperature Minimum inlet water temperature Minimum water flow metal 23% inches 2% inches 3.6 pounds water 4 C 1.8 pounds per square inch 40 C 10 C 1.0 gallons per minute MAXIMUM RATINGS As Power Rectifier Tube Maximum peak anode voltage Inverse Forward Maximum anode current Peak Average Maximum averaging time Maximum anode current Surge Maximum duration of surge current Frequency range* *Ratings are for zero phase -control angle-see curve for details 500 volts 500 volts 700 amperes 40 amperes 6 seconds 8000 amperes 0 15 second 25-60 cycles per second As A -c Control Tube Two Tubes in Inverse Parallel Voltage range Maximum demand Average current at maximum demand Maximum average current Demand at maximum average current Maximum averaging time at 250 volts rms Maximum averaging time at 600 volts rms Maximum peak surge current at 250 volts Maximum peak surge current at 600 volts 250 to 600 rms volts 600 kilovolt -amperes 30.2 amperes 56.0 amperes 200 kilovolt -amperes 18 seconds 7.5 seconds 6720 amperes 2800 amperes GL-5551/FG-271 ET1-113A PAGE 3 12-50 TECHNICAL INFORMATION (CONT'D) MAXIMUM RATINGS Ignitor Maximum Voltage Positive Negative Maximum Current Peak RMS Average Maximum averaging time 900 volts 5 volts 100 amperes 10 amperes 1 ampere 5 seconds Note 1-RMS demand voltage, current, and kilovolt -ampere are all on the basis of full -cycle conduction (no phase delay) regardless of whether or not phase control is used. Note 2-For voltages below the minimum, the minimum voltage current rating applies. Note 3-With the use of log -log paper straight line interpolation between tabulated points may be used for other detailed ratings of: 1. Demand kilovolt -ampere vs average anode current. 2. Maximum averaging time vs anode voltage. Completely revised. CURVES K -69087-72A217, K -69087-72A218 AND K -69087-72A219 MUST NOT BE USED FOR INTERMITTENT RECTIFIER SERVICE 10000 8000 6000 I 1 11111111 11 I I ill I I 1 1I 1 KILOVOLT -AMPERE VS AVERAGE CURRENT RATING 250 TO 600 VOLTS CURVE NO I 4000 ui 2000 a. a. -J 1000 800 0z 600 400 GL-5555/FG-258-A GL -5551/FG 271 GL-5552/FG-235-A GL-5550/GL-415 200 \20 100 10 40 60 80 100 200 400 AVERAGE ANODE CURRENT IN AMPERES PER TUBE K -69087-72A217 (New drawing) 600 800 1000 3 -31 - 4 3 Note: For capacitor -corrected welder service, this curve may be used to 2000 volts rms to allow for the additional voltage caused by the presence of the capacitor. GL-5551/FG-271 ETI-113A PAGE 4 12-50 10000 8000 6000 4000 2000 1000 800 600 400 DEMAND CURRENT VS PERCENT 41, DUTY AT 250 VOLTS RMS CURVE NO. 2 /.7 '94'CO+A, kb4,0 S GL-5553/FG-258-A GL-5552/FG-23 5-A 22 ao GL-5551/FG-271 GL-5550/GL- 415 200 100 2 4 6 8 10 20 40 DUTY IN PERCENT 2 TUBES CONNECTED IN INVERSE PARALLEL K -69087-72A218 (New drawing) 60 80 100 3-31-48 1000 800 1 600 400 DEMAND CURRENT VS PERCENT DUTY AT 500 VOLTS RMS CURVE NO. 3 WITHOUT PHASE CONTROL ... 1, ,44 Q/4,014,G, L-5553/FG-258-A 200 1000 800 600 400 Stkob ,,./ GL-5552/FG-235-A °.9 - Sk. °04, 06. 9 GL-5551/FG-271 ..94.,, '°4,0 GL-5550/GL-415 Se Nos 200 100 2 4 6 8 10 20 40 DUTY IN PERCENT 2 TUBES CONNECTED IN INVERSE PARALLEL K -69087-72A219 (New drawing) 60 80 100 3.31-48 PEAK ANODE CURRENT IN AMPERES 00 0 0 0 11111111111 111111111 llllllllll 11111 lllllllllllllllllllllllllllllllllllllllllllllllll 1 11111111111111111 ill 1 11 111111111 11 111111111 11111", llllll 1 !Tim lllll 1 11 111111111 1111111Ii. lll,...... ,..,,. I 11 1111M11 11:1:11111a ............ Ill Slit lllllll 1J lll 111110111....11 1 1/11 11111,111111 "" irk llllll n O' ""IImop mn ' w llll MINIMENNIN ..11 111111111111 INNI111 n111111111111111111111111 III 111111M11 lllmNionmnmeoailgiar 0ii1i1i1i1i1i1i1i0ii11i1i1i1i1ii1i1 !mum 1111111111 11111111 111 1111111111H IIII 11011 no . ! 3111 l IMI ill"""1111 Hymn :gtrniiiiii.i,iinslaMIIIMI 1111 11111 111 1111 lhl lT 1111 ..mutelan lll ni l - "ibl NE ...,...................,,, llClll elwJinn'1e"i1."iH10r"1IM11..R"meil-iimilimpinap1in1ulmleuMmmieiRnunnuinru-i1"mm-nhmr.a.uH.m1r1m1.u1n.1nm1i0rn"0IuN1uu1iM1tlmMhlaMimAIrnIHmMNwuIM.mUhIlMl'NmmlI"lIIliluavul.lm.u..e..ll.ll.Nu.p.oix.ipllllluililslllat.miNl.l.lmMaunm. mummusIil..Y-IE-.1111 llll e'lnm1il11nll1 PIIlIiIIIII Ira I tilllifi :4 0 OD 6.1 l ClA V Cl lO O O cOo 0 OO GL-55511/FG-271 EU-113A PAGE 6 12-50 OUTLINE GL-5551/FG-271 MAXe I" MAX. ANODE TERMINAL MAX.0e; 12 DIA. 1' 32 -32DIA.HOLE I" tl I-2MAX WATER OUTLET DO ti" 2-2 A A 22 1" ÷ 3" -4 1 2 PIPE 2-34" MAX. IGNITOR TERMINAL 0.250"±.010" DIA. 13" MAX. MAX WATER INLET 311 III 98t 2 I MAX. CATHODE TERMINAL 1;2 2-1 NOTEi. ENVELOPE IS AT CATHODE POTENTIA8L -l 2 9 0° ± I 0° -/- 2" MIN. 28t--i4" 3.. 8- 8 =m..7-3"r2s DIA. HOLE ± 10° EXHAUST TUBE K-5344676 12-50 (11M) OUTLINE FG-27 I IGN ITRON 10-5-44 Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N, Y. ti DESCRIPTION AND RATING ETI-1148 PAGE 1 5-49 SPECIAL DESIGN FEATURES 1. Steel, seam -welded construction 2. Uniform water cooling 3. Compact and strong design 4. Easy to install IGNITRON 5. Copper terminals 6. Flexible anode lead 7. Mercury -pool cathode allows extremely high instantaneous currents to be passed through the tube without damage. DESCRIPTION The GL-5550/GL-415 ignitron is a sealed, clamp cooled, mercury -pool tube designed primarily for Resistance Welding Control. In this service, two tubes in the inverse -parallel connection will control 300 kilovolt -amperes at voltages of 250 to 600 volts and over the frequency range of 25-60 cycles. The tubes are also used in electrostatic energy storage types of resistance welding equipment to control the capacitor discharge. GENERAL 0 ELECTRIC Supersedes ETI-714 dated 4-45 GL-5550/GL-415 ETI-114B PAGE 2 5-49 TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications GENERAL Electrical Data Cathode excitation-Cyclic Cathode spot starting-Ignitor Number of electrodes Main anodes Main cathodes Ignitors Arc drop at 1697 peak amperes Arc drop at 70.4 peak amperes Cathode excitation requirements Ignitor voltage required to fire Ignitor current required to fire (See curve for details) Starting time at required voltage or current 1 1 1 30 volts 12 volts 200 volts 30 amperes 100 microseconds Mechanical Data Envelope material-Metal Over-all length Over-all width Net weight Type of cooling-Removable clamp Clamp contact width Clamp contact area 17,543 inches 2% inches 1.5 pounds 1 7/g N inches 9.4 square inches MAXIMUM RATINGS As A -c Control Tube Two tubes in inverse parallel Voltage range Maximum clamp temperature Minimum clamp temperature Maximum demand Average current at maximum demand Maximum average current 250 to 75 10 150 4 86 9.0 600 RMS volts 50 C 10 C 300 kilovolt -amperes 12.1 amperes 22.4 amperes Demand at maximum average current Maximum averaging time at 250 volts RMS Maximum averaging time at 600 volts RMS Maximum surge current at 250 volts RMS. 50.0 100 kilovolt -amperes 27.8 22 seconds 11.6 9.2 seconds 1680 3360 peak amperes Maximum surge current at 600 volts RMS 700 1400 peak amperes Note 1-RMS demand voltage, current and kva are all on the basis of full -cycle conduction (no phase delay) regardless of whether or not phase control is used. Note 2-For voltages below the minimum, the minimum -voltage current rating applies. Note 3-With the use of log -log paper straight line interpolation between tabulated points may be used for other detailed ratings of: 1. Demand kva vs. average anode current. 2. Maximum averaging time vs. anode voltage and temperature. 3. Demand kva and average anode current vs. temperature. As Capacitor Discharge Tube Maximum number of discharges per second Maximum peak forward anode voltage 60 60 3000 6000 volts Maximum peak inverse anode voltage Maximum peak anode current Maximum temperature of cooling clamp 3000 3000 volts 500 500 amperes 70 40 60 40 C Corresponding maximum average anode current Maximum time of averaging anode current 3 15 3.3 0.66 2.5 8 amperes 4.0 1.25 seconds Note 1-With the use of log -log paper straight line interpolation between tabulated points may be used for other detailed ratings of average anode current and maximum averaging time vs. temperature. Ignitor Maximum voltage Positive Negative Maximum current Peak Root mean square Average Maximum averaging time Technical Information completely revised. 900 volts 5 volts 100 amperes 10 amperes 1 ampere 5 seconds *000 8000 6000 4000 I 111111111111 1 I 1111111 1 KILOVOLT -AMPERE VS AVERAGE CURRENT RATING 250 TO 600 VOLTS CURVE NO I cn ,tu 2000 a. 1000 800 600 400 GL-5553/FG-258-A GL-5552/FG-235-A 200 GL -5550/03 L\415GL-5551G 27I GL-5550/GL-415 ET1-11413 PAGE 3 5-49 10 10 K -69087-72A217 10000 8000 6000 4000 2000 1000 800 600 400 40 60 OD 100 200 400 AVERAGE ANODE CURRENT IN AMPERES PER TUBE 600 800 *00 3-31-48 DEMAND CURRENT VS PERCENT 4i, k DUTY AT 250 VOLTS RMS CURVE NO 2 u. 1`4,_ .reeii /I St, '04,04 C(:)4,0, GL-5553/FG-258-A GL-5552/FG-235-A /e 6s4b04,41, GL-5551/FG-271 GL-5550/GL-415 200 100 2 4 6 80 20 40 60 80 100 DUTY IN PERCENT K -69087-72A218 2 TUBES CONNECTED IN INVERSE PARALLEL 3-31-48 GL-5550/GL-415 ETI-1142 PAGE 4 5-49 1000 800 600 400 2- 200 rc 1000 800 600 40 DEMAND CURRENT VS PERCENT DUTY AT 500 VOLTS RMS CURVE NO. 3 WITHOUT PHASE CONTROL Pei. R4 % GL-5653/FG-258-A 74, 4' . ss SFO ,>:, 0 V5552/FG'235,A NOS 94b04,04, 9GL-5551/FG-271 .94..,, '04,0 ii GL -5550/0L-415 66 04, °S. 200 5-49 (10M) Filing No. 8850 100 2 4 6 8 10 20 40 DUTY IN PERCENT 2 TUBES CONNECTED IN INVERSE PARALLEL K -69087-72A219 OUTLINE GL-5550/GL-415 IGNITRON r.2 MAX 1..- I "MAX 60 80 100 8-25-44 2"MAX. Kil3"+-31; DIA-HOLE ANODE TERMINAL ^ I32 -Li Ic MAX. DIA. 21"MAX. 4 DIA. FLANGE (OPTIONAL) el0 IMIIil Ell 7I4 MAX. 4'MAX. REFERENCE LINE If , T.- 4 I'MAX ---A,, t 2§ MAX t A_ I" MAXf 1 -E2.130" t .00" DIA. CATHODE TERMINAL AND., :MI= 216it161MIN. 1 i CLAMP -COOLED MIN. WIDTH AREA ke4 1 'FL--- -k----CLEARANCE LINE 1MIN IGN TOR TERMINAL 16 ' EXHAUST TUBE .250 " toio" DIA. K-6912327 6-22-45 III Outline drawing revised Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL -506 DESCRIPTION AND RATING ETI-293A PAGE 1 10-50 PENTODE-IGNITRON SPECIAL DESIGN FEATURES 1. Stainless -steel, seam -welded construction 2. Uniform water cooling 3. Strong, compact design 4. Easy to install 5. Copper terminals 6. Flexible anode lead 7. Mercury -pool cathode allows extremely high instantaneous currents to be passed through the tube without damage. DESCRIPTION The GL -506 is a sealed, stainless -steel -jacketed, service 6 tubes will rectify or invert up to 7500 water-cooled, mercury -pool tube designed primarily kilowatts at 17,500 volts. for use in electronic frequency changers. In this GENERAL ELECTRIC Supersedes ETI-293 dated 12-48 GL -506 En -293A PAGE 2 10-50 TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Electrical Cathode excitation-cyclic Cathode spot starting-ignitor Number of electrodes Main anodes Main cathodes Auxiliary anodes Ignitors Control grids Auxiliary grids Arc drop at 450 peak amperes (See arc -drop curve for details) Cathode excitation requirements Ignitor voltage required to fire Ignitor current required to fire (See curve for details) Grid requirements Positive current to establish conduction Minimum voltage to establish conduction Minimum voltage to prevent conduction (See curves for grid characteristics) Mechanical Envelope material-metal Over-all length Over-all width Net weight Type of cooling-water Characteristics for water cooling Water temperature rise, maximum Pressure drop at 5 gallons per minute, maximum Thermal Water cooling Maximum outlet water temperature Minimum inlet water temperature Minimum water flow at continuous rated average current Minimum water flow at no load MAXIMUM RATINGS AS POWER RECTIFIER TUBE Maximum peak anode voltage Inverse Forward Maximum anode current Peak Average Continuous 2 hours 1 minute Surge Maximum duration of surge current Frequency range* IGNITOR Maximum voltage Positive Negative Maximum current Peak RMS Average Maximum averaging time Starting time at required voltage or current 1 1 2 3 2 1 23 t 2 volts 450 volts 45 amperes 1 00 ampere +100 volts -50 volts 57 2 inches 121,' t 1 inch 100 t 5 pounds 4 C 4 pounds per square inch 45 C 35 C 5 gallons per minute 5 gallons per minute 20,000 volts 20,000 volts 900 amperes 150 amperes 200 amperes 300 amperes 5000 amperes 0 15 seconds 25-60 cycles per second 1000 volts 5 volts 100 amperes 17.5 amperes 2 5 amperes 10 seconds 100 microseconds TECHNICAL INFORMATION (CONT'D) AUXILIARY -ANODE Maximum current Peak Average Maximum averaging time RMS Maximum peak forward voltage.. Maximum peak inverse voltage Main anode conducting Main anode not conducting 20 amperes 5 amperes 1 second 10 amperes 200 volts 25 volts 150 volts GRID Maximum peak forward voltage Maximum peak inverse voltage Maximum grid -current Peak positive Peak negative Average RMS * Ratings are for zero phase -control angle 500 volts 200 volts 5 amperes 0 1 ampere 10 ampere 2.0 amperes GL -506 ARC DROP CHARACTERISTIC FOR COOLING WATER TEMPERATURES OF 30-60 C 35 MEMMIM MMMMM MMMMM MEMINIMMEMMMMEMEMEEMMAMMEMMEMEMMEMMEMEME MMMMMM M Mum EEMMIEWEENEMMEM MMMMM M MMMMM EMEMOMMMEMEIMEMMIMMEMEMMNIMMEMEMMEMENIMMOME mMIEME MMMMM M MMMMMM M MMMMM MEM MMMMM EMS nommummummiminimmmommimmummi mummommummommummismommummmma mgm mummomminummmionomMmmMmMiiMnnMusMmMmMM migomupmm. 30 aiimusmmmsmmmoooummmmmmmmgooommmmmmmmguommMmmmMmuMMimMMnmMMuuMmmmMmommiusmmmMmimMmuuMmumMummMmmumummomummmsomiumummmmmmuioummmmmmmmogurmmmnmimsociimsmmmagimmsomgMm.mMmmMMioMMmmMMmmMMMmEmMmiimmmnammgousMmmmMmmiMumuMmgmMmmmommimueummmmm g MMMMMMmMM:TACIT MMM M m Mmmm mng gammommmumommmmommnmminmmegimgewmumimmon.mummmmm mmummiilnmommummumuummmmiommmmoummmoimmummmmMmeMuMMmMMrMMMeMgnMmioum mmMmmMuomvmm.:dmMmMiiMlmmlmimigmmmmmeiimmnlmiimmmmoIugmmnmmimomgomimmommmoimmmim 25 mommamimmommummummimmimummmmiusmmmaaiimmummmiiimm.m:odirmammgmuommmmasmmmoomm m_o_m7g.l.i.m.mmom.i-mAmmommommommommmigm MMMMMM me MMMMM mom MMMMM MEMMINAn % MMMMMM Emmomm7:0MignimMEMMM MMMMM EMem MSEEMI=MMMMMEMMMMMEEMIEMMMMMMMEMEIMMMMEEnMiMEEEMMPAIMAiNmIEMMMMAEIEMMEEMMMMMWIMM.MOEMMAPMtEiEEMMMMEMIEMEMMMMMMEMMEEMMEAMEMMEMEEMMMSEEME EMMEIMMMEMMIUMMEMnMaEmEmMaCm1mMIPMEMEEMEWMEEIEEMmMiEgIBMMM.MEMMMMMMMMEMEMMMEMMMENNMEEMEMmMEMMMMMEMEEMMEMEEMMMEEMEEMMEEME mmEEM MMMMMMMM mr.nmomroMm MMMMM MINIMPIMmOMM MMMMMMM IIIMMIIMMEM MMMMMM M MMMMMMM ME 1IIHMUMMMEIMNNIIPMnMaIlPIMMiPMMMMEOM_MIOMNEMMEMNIINMIPMINMIMMEMIEMMIONMAMMMEMMMMMEMMMOMMMMIIIMMMOOMMMMIMMOMMMMOMMMMMEMMMMIIIMMMMEEMMOMSIEMMMMOEM 20 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MMMMMMM ME MMMMMM EMMEMIEMMMENIMENMMUM NEM 0 200 400 600 800 1000 1200 INSTANTANEOUS ANODE CURRENT IN AMPERES K -69087-72A196 Revised drowino 5-2-49 GL -506 ET1.293A PAGE 3 10-50 GL -506 ETI-293A PAGE 4 10-50 IGNITOR VOLT-AMPERE REQUIREMENTS SEALED-IGNITRON RECTIFIERS :AA WIWNWORTIMMOWIRMNIPROWNIIMMEM MMEMMEMEMEMINIMEMME MEMMEN:IMMUVIII0 ilirelfinvIlljaNAPIAPVIMAMIUMIMMI IIMMEMEMEMEMIIMMIUMM MUMEMEMMINOWnw IIIMMmuMPRIMEMMIMMOM EMEMMEEEMMEMMEMRIEMMMMIEMMMEEMMEEMEMMEMNEVMIMMAMIEMCMWOIMIEVMMMAIIIMMMMAUtMUEMaElMIEFMMMREWMMMOEOMIMMEIRUMREOMMIMUMEMMEEMMEEMN MEMMEMMEMMAMMEMEMMEMMEWIGNIMANWINAMMENMEMMEMEMMEMMERMMONEMMEMEM MMMEEMMMMEEMMOMMUMMEEMUOMMMMEMMUMMEMMIMNIIIMMMMEEMMEMMEEMMMEMMEEMMMMIIMMMEIMEMMIMMEMMIMNEUMMOMMEMMEEMMMMIETMEMMEMMEMMEMMOOMM 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MIUMWOMMMEMMEMMEMMENNWM2EMICOMMEWMOMMEMEMMONMEMMENIMMEMEMOMME MlmiMuimEmmmDmuwIiTmaAammImomRmmAuuImmUmumMumoNmmImmMimMomoEmmMmmoMmuEmuMmmmMmoEwapMdnReeWaaAammNmaaWarP00AaaMpmmUraMmnaWaw2mmMeaa2amRgwpEouMamMmumEmmMuuMmmmEomMmmuEommmmMimmEmoAimmMmMummEmuiMmmMmumEmMimuEmmmMmMmoEuiMmmsEm=mM MmIoImMmMuENmImNuImMMmEoMmEmRMeMmImNoWmOM=MaEmMmOMaMnEaAmCTaOiRm2e.2mEa2tAuMmMImMoMmUmMMoEmMmMuEMmMmEoMmENmuMmEmM 1mimm1ooom1mmmm1mmm1ouu1mm1mmm1mmmm1oor11mo1m1mmmu1umum1coMmmtmMiuqEmmMmuuMmammEmvmiMovPonFmumoWmmmMmmooPmwmImPmameMaomaMiarmEfMgaatOammWmmaReagmWraRaaaImmmKmiaaOamlMmmMaeaaE00amMaMakrtAmuaMummMmmmmEmmMouooEmmMmmMmEmmmMooMoommEmmmMmmoMmooEmmmmMmmuMmmUomoMummmImmmNimoIomMmmmEmimmM mmiommmmumumummmmomummmmomomummmommmoommmimmuuommmmmmmuoummmmmmfiotmmgamamamparemaaammmmaaammmaamampmalaeegraaaumcmuommmimmmomIurmmmmmuommmommmouummmmmmooimmmmmm MEEMMMEEMMEEMMMMEEMMMMEmIENMIMMEMMOMMIMMEMMEMMMEEMMMMEWMOWREW2EMRWEMI2BMMW2ERRWEEWWAIMEIWMOMEMMIENMIOMMMMEEMMMIEMMMINEEMIMMEM MMERMEMINIMMEMEMMEMEMMEMMEMENIMORWEWEWEWPWWIEROMMEMMEMMUMMEMMEMEME MMEMMEMMARIMMEMMEMSEMMIMMEMELM2M2RaWAWEMIPMEOUMMEMEMMEMMEMMEM MEMMOMMEMMEMIMMEMERMIUMMEMMEMMEaRigagaRralimAMMBEMIIMMEMMEMEMMEM MMEEMMMMEEMMMEEMMEMMEMMEMMEINEMMMEEMMMEEMMEMMEMMEMMEMEEKWMEMNEEMWOMNMWIENNAEWWAWRWAUWMWEWMIENMUEMMMMIEMMMMOEMMEMMEEMMM MEMMEMMEWEIMINOMMESMUMEMMONEMMUNIMOMMEMCUMMIIMMEWITMEMMOMMENEMMIN T l INIMMEMMEMW MEMMEMEMMXAMMOWEMILITAMEMMIggAMEMIMMWOMIMMOMMEMEMMEM MMMMMIIEIIMIMMIMOMEMMMMEEEMMIMOMEMIMMMNEEEMMMOMMMEMEMEMMMEIWMMMWMMEPMIMNEPMIEIMMMMUIMMLMILOOPN11I1LM11mTIMIMIl IMMNMI1I!PEIWt1IR1MRMNUMUPiMfP:M1PE1N(M7IM1M1E1MM,1EM1ME1EMIMMIEEMMMM K-9033883 6-14-45 GIL-5()6 ETI.293A PAGE 5 10-50 GL -506 STARTING CHARACTERISTIC 0 I ON ZAT ION 840 AWERES PEAK ION ZAT ION 540 AMPERES PEAK IONI LAI ION 240 AMPERES PEAK E BIAS 16 12 8 15 4 15 c\ 0 C \50C \ 5 C 11 50 C \\ \ \\ \s\ -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 410 GRID VOLTAGE AT START OF DISCHARGE IN VOLTS K -69087-72A216 3-30-48 GL -506 ETI-293A PAGE 6 10.50 30°,,,2SHIELD GRID TERMINAL ANODE TERMINAL 9 m CONTROL GRID TERMINAL VIEW AT "A" 6 DI 14 2 MAX. (HOLE I-MIN 16 ' 14- g±32 in 4 31{._ SHIELD GRID TERMINAL CONTROL GRID TERMINAL IN T-16-0" INTERMEDIATE ANODE TERMINAL 418 - 4 13" 23" 67 DIA. VIEW SHOWING IGNITOR 0 SHIELD GRID TERMINALS (t-t' Ng 11 4 DIA. VIEW SHOWING HOLDING ANODE S CONTROL GRID TERMINALS 1 42" MAX. WATER riOUTLET PS WITH CAP 29 2 + I" 4 - 8 - 4 HANDLE NAMEPLATE -2-13 TAP 2 HOLES 5"DEEP 8 CATHODE TERMIN IGNITOR TERMINALS N-22002 AZ I A (11001) 4 MAX. -4-- 9" DIA. MAX. -11P- HOLDING ANODE TERMINALS i; L -iM" AX 2 '1.4- WATER INLET -.-...4------- --1I. P SS. 4 WITH. _.s.''. --.4_ = _- - I =.E--_=..:.-11 i 1T -r---1- MI"AX. 1 1" MIN. 2 OUTLINE GL -506 IGNITRON CAP BOTTOM VIEW Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 9-29-47 PHASE CONTROL 1.0 0.8 o.6 0.4 0.2 GL -6228/506 ET -T1037§ PAGE 7 12-58 7,0 60 80 100 VOLTAGE REDUCTION BY PHASE CONTROL IN PERCENTAGE K -69087-72A513 9-10-52 IGNITOR VOLT-AMPERE REQUIREMENTS FOR SEPARATE EXCITATION SEALED-IGNITRON RECTIFIERS THE IGNITOR FIRING CIRCUIT SHOULD BE DESIGNED TO OPERATE WITHIN THE SHADED AREA 800 Mr 700 /MI 1 r.,MrP 600 500 :IFIRMIngriaral VERIMPP 400 delp .. am, imuu 300 IIIIIIiiIF .. unine 200 . ii Cii1i.. 1171T1111TF1.1- 100 ,,011.1 411 0 20 40 60 80 PEAK IGNITOR CURRENT IN AMPERES K -69087-72A741 § Supersedes pages 7 and 8 dated 9-53. 12-9-55 GL -6228/506 ET.T1037 PAGE 8 12-58 5"± 32 64 0.510 *.-0.03010 4 - - 23). I" 32'64 ILL.+ .L" 16 I +3 8MWAXA. SH3E4R4 RADIUS Id t -I" DIA. 64 VIEW SHOWING IGNITOR 8 SHIELD - GRID TERMINALS 1"+ I " Tt4111- 4 64 ,NL.e I. 4 D1A- +6-4 VIEW SHOWING HOLDING -ANODE 8 CONTROL -GRID TERMINALS 3 CAPACITOR GROUNDING TERMINAL NUTS- 3/8 "-I6TP1 '4-5" MAX. -be- J4.7-+ -8C. I i SHIELD -GRID TERMINAL 1-1 j A CONTROL GRID TERMINAL WATER OUTLET 4I.P S 3". I. WITH CAP 294 T2 25 2'+2" /INTERMEDIATE NODE TERMINAL 80°1.10° Oil 61'2 SHIELD 411011.14% 34RtT4 VC 0 ip 3°°±I° TER- GMRINIDAI. 40°!10° ik CONTROL- GRID TERMINAL 90°t 10e r- 41"! VIEW AT "A" NAMEPLATE HOLDING ANODE TERMINALS 3"t I" 2 -13 TAP 2 HOLES 5" DEEP MIN. TERMINALS 8 60° 60° .+10 2 /4 R 28-4 1"-I- I" 9" DIA. MAX. (t 4,)) 7 - -1- - CATHODE TERMINAL I-2T- 6)-4 WATER INLET WITH GAP C P BOTTOM VIEW NOTE: BOTTOM END OF TUBE WILL FIT AN ALIGNMENT RING WHOSE OUTSIDE 64 DIAMETER IS 7 I/2" MAX, INSIDE DIAMETER 7 "MIN. FOR A MINI MUM OF 1/4 " FROM OPEN END N-22002AZ-Outline revised. ELECTRONIC COMPONENTS DIVISION GENERAL ELECTRIC Schenectady 5, N. Y. 6-25-58 GL -5630 DESCRIPTION AND RATING ETI-294A PAGE 1 5-51 SPECIAL DESIGN FEATURES 1. Stainless -steel, seam -welded construction 2. Uniform water cooling 3. Strong, compact design 4. Easy to install IGNITRON 5. Copper terminals 6. Flexible anode lead 7. Mercury -pool cathode allows extremely high instantaneous currents to be passed through the tube without damage. DESCRIPTION The GL -5630 ignitron is a sealed, stainless -steel jacketed, water-cooled, mercury -pool tube designed primarily for use in radio -transmitter power sup - plies. In this service 6 tubes will rectify up to 2500 kilowatts at 17,000 volts. Use of the grid to prevent conduction gives one -cycle circuit -breaker action. GENERAL ELECTRIC Supersedes ETI-294 dated 12-48 GL -5630 ETI.294A PAGE 2 5-51 TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Electrical Type cathode excitation-cyclic Type cathode spot starting-ignitor Number of electrodes Main anodes Main cathodes Auxiliary anodes Ignitors Control grids Auxiliary grids Arc drop at 150 peak amperes Cathode excitation requirements Ignitor voltage required to fire Ignitor current required to fire Grid requirements Positive current to establish conduction Minimum voltage to establish conduction Minimum voltage to prevent conduction 1 1 1 2 1 1 18 t 1 volts 450 volts 42 amperes 0 200 amperes +100 volts -50 volts Mechanical Envelope material-metal Over-all length, maximum Over-all width, maximum Net weight Type cooling-water Characteristics for water cooling Water temperature rise Pressure drop at 3 gallons per minute THERMAL Water cooling Maximum outlet water temperature Minimum inlet water temperature Minimum water flow at continuous rated average current Minimum water flow at no load MAXIMUM RATINGS AS POWER RECTIFIER TUBE* Maximum peak anode voltage Inverse Forward Main anode current Peak Average Continuous 2 hours 1 minute Surge Maximum duration of surge current Frequency range * Ratings are for zero phase -control angle. 33H- 13 inches 9 inches 23 t 2 pounds 2 C maximum 4 pounds per square inch 45 C 35 C 3 gallons per minute 3 gallons per minute 20,000 volts 20,000 volts 200 amperes 50 amperes 50 amperes 50 amperes .2000 amperes 0 15 second 25-60 cycles per second TECHNICAL INFORMATION (CONT'D) IGNITOR Maximum voltage Positive. Negative Maximum current Peak RMS Average Maximum averaging time Starting time at required voltage or current AUXILIARY ANODE Maximum current Peak Average Maximum averaging time RMS Maximum peak forward voltage Maximum peak inverse voltage Main anode conducting Main anode not conducting GRID Maximum peak forward voltage Maximum peak inverse voltage Maximum grid -current Peak positive Peak negative Average RMS IGNITOR VOLT-AMPERE REQUIREMENTS GL -5630 ETI-294A PAGE 3 5-51 1000 volts 5 volts 100 amperes 17.5 amperes 2.5 amperes 10.0 seconds 100 microseconds 20 amperes 5 amperes 1 second 10 amperes 200 volts 25 volts 150 volts 500 volts 200 volts 5 0 amperes 01 ampere 10 ampere 2 0 amperes 4, .01,11.1 I MOO 1.41.01040.10:410k o 4. 1,00,41:/$41. logialebid .- .. . a:1 g , . 1111E11E11111111 11011111111111:11111 111111 111 11 11 III 111111111111i1911L10.1...10.1..1..1..1.,1.,.01111 1111111M11111111111111101117ARIIIMPIII II VIII WHIN 1111111111111111111 111111111111111/1101111i1111 1111 11111111111 mmommmulmornommom mitopm II 111111111111111111111111111111 111111/110111ilil 111111 1111 1111 IIIIIIIIImilmilimrpmelimpivoilumImol 11111 I K-9033883 6-14-45 GL -5630 ETI-294A PAGE 4 5-51 9" DI 16 MAX. OUTLINE GL -5630 IGNITRON /74-66u 4 "+ - 16 ri " 32 - 32 ANODE TERMINAL CONTROL -GRID TERMINAL I" + I" 2 -4 DIA. 3Is ± TIfl" DIA. Fl 294 t 16 4 3hDIA. -6" //yj, 3u MAX. fl 1-Q 1111 21 TE. 2 9. + 127 -4 i" _ - DIA 2 II WATER INLET 2 + 16 42--.1 ± I" 511 ...._ . 1-8 ...- GRADIENT GRID TERMINAL TOP VIEW WATER OUTLET K L-1 OUTLET AND INLET -J CONNECTIONS 1/4" SEMI- FINISHED BRASS UNION CRANE CO. *522 OR EQUIV. FURNISHED WITH MALE PART ONLY IGNITOR NO.1 TERMINAL 3° MAX. VARIATION IGNITOR NO. 2 TERMINAL ,-'-MAX," N-22003AZ I-1/2"MAX. i' 5_3/16" .t. 1/4 i' i 9/16" DIAC.P -... Z.'" DIA. i 4 MAX. ci I-i3/4' MAR 3/4"MAX. y CATHODE TERMINAL "°--lir\--101 4 \ 31.4. I' , I 4 - 16 _ 0 r5du+- IN 4 AUX. ANODE TERMINAL -2I MAX. BOTTOM VIEW 3-26-51 Tube Divisions, Electronics Department 5-51 (UM) GENERAL ELECTRIC Schenectady, N. Y. GL -5779 DESCRIPTION AND RATING ETI.301 PAGE 1 5-49 IGNITRON DESCRIPTION The GL -5779 is a small glass, air-cooled ignitron operating principles of ignitors and ignitron tubes. tube designed primarily for demonstrating the TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Cathode excitation-Cyclic Cathode spot starting-Ignitor Number of electrodes Main anodes Main cathodes Auxiliary anodes Ignitors Control grids Auxiliary grids Arc drop at 15 peak amperes 1 1 1 1 0 0 13 t 2 volts Cathode excitation requirements Ignitor voltage required to fire Ignitor current required to fire (See curve for details) 450 volts 45 amperes GENERAL ELECTRIC GL -5779 ETI-301 PAGE 2 5-49 TECHNICAL INFORMATION (CONT'D) Mechanical Data Envelope material-Glass Over-all length Over-all width Net weight Type of cooling-Air * * An ordinary desk fan will provide sufficient cooling for most purposes. Thermal Air cooling Maximum average tube temperature Minimum average tube temperature MAXIMUM RATINGS As Power Rectifier Tube Maximum peak anode voltage Inverse Forward Maximum anode current Peak Average Continuous Surge Maximum duration of surge current Frequency range** **Ratings are for zero phase -control angle. Ignitor Maximum voltage Positive Negative Maximum current Peak RMS Average Maximum averaging time Starting time at required voltage or current Auxiliary Anode Maximum current Peak Average Maximum averaging time RMS Maximum peak forward voltage Maximum peak inverse voltage Main anode conducting Main anode not conducting Cathode Maximum average current SA inches 2% inches 1 pounds 100 C 10 C 350 volts 350 volts 30 amperes 10 amperes 300 amperes .03 second 25-60 cycles per second Anode volts 5 volts 100 amperes 15 amperes 2 amperes 10 seconds 100 microseconds 20 amperes 5 amperes 1.0 second 10 amperes 150 volts 25 volts 150 volts 10 amperes GL -5779 IGNITRON IGNITOR VOLT-AMPERE REQUIREMENTS SEALED-IGNITRON RECTIFIERS GL -5779 ETI-301 PAGE 3 5-49 OMMEMEMPIPMMMEMMEMMIIMMEMMEMEMMINIMMEMMAIMMEMMEMEMMEMOMMEMMEMEMMIMEMMEN IIMEMMEN;JAMMEMMEMMEMEMEMMEMMENEMMUMMEMEMENEMENEMMEMMEMMINIMMEM 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mmommumummmmoinmimmwmommommmmmumMEwMoEoMMmEmMuEMmMwEmMOuImEmWEiRmImMPiAmRPm2uRm2Rm2u0m11m1u1m11m1uMmMEmMuMmMUmMoMmEMmMoEmMMmEuMmENm MEMEMEMMEMMEMEMMEM=CAMMEMMEMLIMMEMEMEMATAIMMEMSNUIMMEMMEMEMEMMEMMEMM MMEMMOMMEMEMIIMMEMEMERNEMIWPWITPWW,MTRWMFORIMPNWITTRWAMEMMEMEMMEMMINE MMEEMMMIENMIIMMMMUMEMMMMEEMMEMNEMMEMEMMMiMdEaMrMiIANMIIRMCMIIVMIMIEMMMIMMOCM0M6I1M.M4E01M1EMMRMIIUNWIWMAMRLEIM.MWE7NMMMEEMMEMMEEMMMMIEMMMMEEMMMM K-9033883 6-14-45 GL -5779 ETI-301 PAGE 4 5-49 4 OUTLINE GL -5779 IGNITRON I/4"DIA. ANODE TERMINAL 5. 7-6- f I" 4 I" 1" 716+4 2 2 DIA 5-49 (10M) Filing No. 8850 17"t 32 16 AUXILIARY ANODE t TERMINAL -4- DIA. .DfMAX. 8 SEAL OFF t .750.±...A.16" i 1/4" 11LF.- t IGNITOR TERMINAL 1.. MIN. 32 DIA. TUBULATION N-22012AZ /1-."--- TERMINAL r. 4 BOTTOM VIEW 9-22-48 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. DESCRIPTION AND RATING GL -5788 ET -T1184 PAGE 1 11-57 IGNITRON RECTIFIER SERVICE -200 AMPERES AC CONTROL SERVICE -2400 KILOVOLT -AMPERES AUXILIARY ANODE TWO IGNITORS The GL -5788 is a permanently sealed watercooled rectifier ignitron similar in construction and rating to the GL -5555. Special features are reliable operation at higher water temperature and lower water pressure drop than are possible with that tube, and distinctive (larger diameter) ignitor terminals. These features make possible the use of economical water -to -air heat exchangers at higher ambient temperatures than are possible with the other tube, the operation of six tube cooling jackets in series on normal water -supply line pressures, and assure the user against premature ignitor failures caused by connecting the auxiliary anode lead to an ignitor terminal. The tube is designed for operation in 300-, 600-, and 900 -volt d -c industrial rectifier circuits. The continuous average anode current rating is 200 amperes per tube in rectifiers rated up to 400 volts d -c. GENERAL ELECTRIC Supersedes pages OWL, 4, 7 and 8 dated 1-55 GL -5788 ET -T1184 PAGE 2 11-57 TECHNICAL INFORMATION GENERAL Electrical Cathode Excitation-Cyclic Cathode Spot Starting-Ignitor Number of Electrodes Main Anodes Main Cathodes Auxiliary Anodes Ignitors Arc Drop at 600 Peak Amperes (See Curve K-6917495 on page four for details) Peak Excitation Arc Current Required, minimum (See curve K -69087-72A438 on page seven for details) Excitation Arc -Drop Voltage Excitation Arc -Open -Circuit Voltage, minimum 1 1 1 2 16.2 =0.5 Volts 8 Amperes 9 =0.5 Volts 55 Volts AC Mechanical Envelope Material-Stainless Steel Net Weight, approximate 25 Pounds Thermal Type of Cooling-Water Inlet Water Temperature*, minimum 6 C Outlet Water Temperature, maximum Power -Rectifier Service Peak Inverse Anode Voltage =900 Volts Peak Inverse Anode Voltage =2100 Volts 60 C 55 C AC Control Service Voltage = 2400 Volts RMS 45 C Water Flow, minimum, solenoid water valve open At No Load t At Continuous Rated Average Current 1 Gallons per Minute 3 Gallons per Minute Characteristics for Water Cooling at Rated Minimum Flow * Water Temperature Rise, maximum Pressure Drop at 3 Gallons per Minute, maximum Dependent upon load conditions. For substantially constant load 6C is 4 5 3 satisfactory. For C Pounds widely per Square fluctuating Inch loads 20C is required. t Water flow should be continued for at least thirty minutes after removal of anode power. MAXIMUM RATINGS AND TYPICAL OPERATION Power -Rectifier Service, Continuous Duty Ratings are for Zero -Phase -Control Angle-See curves K -69087-72A504 on page five and K -69087-72A503 on page six for details. Maximum Peak Anode Voltage Inverse Forward 900 2100 Volts 900 2100 Volts Maximum Anode Current Peak 1800 1200 Amperes Average Continuous Two-Hours-Averaged Over Any Two -minute Interval One-Minute-Averaged Over Any One -minute Interval Fault Maximum Duration of Fault Current Frequency Range 200 300 400 12,000 0 15 25-60 150 225 300 9000 0.15 25-60 Amperes Amperes Amperes Amperes Seconds Cycles per Second AC Control Service Two Tubes in Inverse Parallel, Ratings per Tube Voltage Maximum Demand Average Current at Maximum Demand Maximum Average Current Demand at Maximum Average Current Maximum Averaging Time at 2400 Volts RMS Maximum Peak Fault Current Frequency Range 2400 2400 135 207 1105 1 66 6000 25-60 Volts RMS Kilovolt -Amperes Amperes Amperes Kilovolt -Amperes Seconds Amperes Cycles per Second TECHNICAL INFORMATION (CONT'D) Ignitor Characteristics Maximum Inverse Voltage 5 Recommended Pulse Length 800 Minimum Pulse Length, for average anode currents greater than 5 amperes 150 Maximum Pulse Length 4000 Volt -Ampere Characteristics See curve K -69087-72A803 on page four for details Volts Microseconds Microseconds Microseconds Auxiliary -Anode (See Curve K -69087-72A438 on page seven for details) Maximum Peak Forward Voltage Maximum Peak Inverse Voltage Main Anode Conducting Main Anode Not Conducting Maximum Current Peak Average Maximum Averaging Time Root Mean Square 160 Volts 25 Volts 160 Volts 30 Amperes 9 Amperes 10 Seconds 15 Amperes GL -5788 ET -71184 PAGE 3 11-57 GL -5788 ET -T1184 PAGE 4 11-57 IGNITOR VOLT-AMPERE REQUIREMENTS FOR SEPARATE EXCITATION SEALED-IGNITRON RECTIFIERS THE IGNITOR FIRING CIRCUIT SHOULD BE DESIGNED TO OPERATE WITHIN THE SHADED AREA 800 TOO 600 500 400 I IGNITOR 8000EC RECOMMENDED PULSE WIDTH ELEMENTARY CIRCUIT FOR CAPACITOR FIRING 300 200 100 MINI UM REOU IRED MAXIMUM ALLOWED K-9033525 5-25-54 0 20 40 60 80 K -69087-72A803 PEAK IGNITOR CURRENT IN AV.PERES 11-8-57 ARC DROP 22 20 18 16 14 12 10 8 60 200 K-6917495 400 600 800 1000 1200 PEAK ANODE CURRENT IN AMPERES 1400 2-14-55 AUXILIARY -ANODE REQUIREMENTS GL -5788 ET -T1184 PAGE 7 1 1 -57 i el..: :i1l:a PIIIII=MEM NMaEIMMMIIwUitl:igMlIIMIIIRM,I1I1I1I1IMIMMLI.IIFaIlk... 11...121 , r A. c1:1n.1P...1A..11I11FVIF1I .I1/IlPiIs.1II1n.tIoi1Iamo1a,14rI1io4r01it.1,1ii,m,.'.0.Ti1i:T11I76mmMiPi1aii.l:,r=±ie111mIJi1l1f1d11-I.i1Ir1iMm4ii/I1Mr1imi/M1wM1r0iEiVimNilaIvi/iiii1Ii-i7IIm.M0aIIItlMI IEl7iM.6,I1I-M.4rE19i1i"O41R1,1-ZPIZIZI1 igrtIilpiaulmlumneismAr.EL-P1INL1-LJiP,l2mmg_m,O..W.PurFpdFPdrTv,RzpW0I,N.n,I;FraAw0IA1pF,Fr2IiR,:,r.F§.F.rkFtP.eF,.7r.Iim.MpPF,gPF. 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'IN6 mmil uinmmnEnmmminno .; mm1.-.....0:'11: 1111111 nomm1u11noImnsmumm1""1" 1111I121on11a ErnmIollIII MAN .Jnni1 iml1111111ACIIIPSIPAIII0 gargl numunrus suirm 1114AMMILiamfidAMM4. mmim 11011 Ilea& AI MMIMMEM mum CSC " SMII IIMUMNIMMONNMEM mmmmmmmm 111r1m1o3dwLoImMmMdMmiUnLEmMmEmMmm:m:m, -MI Imm mmum MMMMMM WEI Iiiiiiiiiii mom simm NI 1M1U1M1MM1.4M1111.1111 II,I1I1I11M1 II GL -5788 ET -T1184 PAGE 8 57 I I A 8 t II 2 MAX. 23" .515"±.005" SERIAL NO. ANODE TERMINAL r7- &WATER OUTLET CQNNECTION 1/2 PIPE NIPPLE 5 1114 i" . I22+f 16-4 3 i2f+- _8f INLET r- /2" PIPE NIPPLE 88in+±34.14 IGNITOR TERMINALS 23/64" DIA. I"MAX. II IGNITOR NO.1 TERM1NAL9,, ri DIA CATHODE TERMINAL NOTE: ENVELOPE IS AT CATHODE POTENTIAL K-69087-72A685-Outline revised 3-- I4 32 16 32 f4 16 f MAX. VARIATION ± 3° FROM CENTVI.,INE -t- AUXILIARY 16 32 ANODE TERMINAL t 1/4" DIA. IGNITOR NO. 2 TERMINAL 3t1" NOTE: ONE IGNITOR USED AT A TIME 4-16 ELECTRONIC COMPONENTS DIVISION GENERAL ELECTRIC Schenectady 5, N. Y. 11-14-57 GL -5822 DESCRIPTION AND RATING ETI-309 PAGE 1 3-50 IGNITRON DESCRIPTION The GL -5822 ignitron is a sealed, stainless -steel jacketed, water-cooled, mercury -pool tube for control of frequency -changer resistance welders. This method of resistance welding converts three-phase 60 -cycle power to single-phase power at four to twelve cycles per second. A particular advantage of this method is the appreciable reduction of kva demand from that required in single-phase weld- ing, with consequent saving in the amount of power required. In addition, the three-phase circuit balances the power load and makes possible im- proved results in welding aluminum, magnesium, and their alloys. A feature of the GL -5822 is the use of baffles in the tube to reduce deionization time so that the tube will operate satisfactorily under the severe conditions of commutation imposed by this class of service. Other design features are an ignitor adapted to intermittent service, and a spiral metal tube within the ignitron through which the cooling water circulates to assure uniform cooling. GENERA ELECTRIC GL -5822 ETI-309 PAGE 2 3-50 TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Cathode excitation-Cyclic Cathode spot starting-Ignitor Number of electrodes Main anodes Main cathodes Ignitors Arc drop at 1500 amperes peak Cathode excitation requirements Ignitor voltage required to fire Ignitor current required to fire Starting time at required voltage or current 1 1 25 volts 200 volts 30 amperes 100 microseconds Mechanical Data Envelope material-Metal Over-all length, maximum Over-all width exclusive of water connections, maximum Net weight Type of cooling-Water Characteristics for water cooling Water temperature rise, maximum Pressure drop at 1.5 gallons per minute, maximum Thermal Water cooling Maximum outlet water temperature Minimum inlet water temperature Minimum water flow at continuous rated average current Minimum water flow at no load 27% inches 434 inches 8h pounds 6 C 5 pounds per square inch 35 C 10 C 1 5 gallons per minute 0.5 gallons per minute MAXIMUM RATINGS MAXIMUM PEAK ANODE VOLTAGE Inverse Forward MAXIMUM ANODE CURRENT* Peak Corresponding average Average Corresponding peak Maximum averaging time Ratio of average to peak current, maximum averaging time 0.2 second Ratio of surge to peak current Maximum duration of surge current Frequency range 1200 1500 volts 1200 1500 volts 1500 20 70 420 6.25 0.166 12.5 0 15 50 to 60 1200 amperes 16 amperes 56 amperes 336 amperes 6.25 seconds 0.166 12.5 0.15 second 50 to 60 cycles per second IGNITOR Maximum voltage Positive Negative Anode volts 5 volts Maximum current Peak Rms Average Maximum averaging time 100 amperes 10 amperes 1 ampere 5 seconds *Straight line interpolation on log -log paper is allowed between corresponding points. Ratings are for zero phase -control angle. GL -5822 POWER RECTIFIER RATING INTERMITTENT SERVICE MAXIMUM AVERAGING TIME=6.25 SECONDS 1 Average Maximum Averaging Time 0.2 Seconds=0.166 Maximum 1 Peak 1 Surge Maximum Duration of Fault Current 0.15 Seconds=12.5 Maximum 1 Peak 2 3 4 6 7 8 9 10 ''' r `,11 1 :1 m: 111 111111 111111 111111 1 1 111 III II I I OMM 1 11 ''''' 16V II 111 20 30 GL -5822 ETI-309 PAGE 3 3-50 40 50 60 70 80 90 00 30 11 11111 11 11 11111 1111 111111 1111 I M1U11U1111...11111111111 llllllllll 11111111 111116111 llllllllllll 111111111 1111111111 llllll I III 11111 11 111 111111111 I 1111 111 11111111 111 1111 1 1111 1111 lllll 1111111111 11111111 III 1 1111 1111 lllllllll 1 11111 20 1000 11:1 ''''ii'' 1 11111 1 11 MIN111.21111 ''''' n114 /111111:111 W'N1 ME G3121011111.11111 11 :111111.1i llllllll 1 11111111 1 111111 1111 II III UIIITlMl INIIIMUR 11111111111111111111 llllllllllllllll 111111 1111111 1111 11 111 1 1:::::.....::6:i i1 II 1 lllllllll 11111 111111111 11111111 1 1 11111111 lllll 1111 11111 111111111111 111111111 llllll 111111111 111111 minim inn lllll 11 11111111 llllllll I 111 1111 1111111111 111111 ill! lllllllll 111111 1111111111 I 111111111 lllll 1111111111 III 1111111111 11111111111 lllll 1111111111 10 9 8 7 6 5 4 l 1 II 111 IR II 1111 111 111 111 3 1111 III 1 111 II I I llll IIIII1I1I1I1II 1111111 11 III 1111 lllllllll 111111 2 h .N111101 1111 100 1 K -69087-72A3 1 6 ii 1111111 111111111 lllllll 1 1 1 1111 111 1 1 11 III II 111111 111 1 lllllllll 1111111l 1I1ii1ii1i8ii1ill1n11illI ii lllllllllll ii i1 0 AVERAGE ANODE CURRENT IN AMPERES PER TUBE /1111 111111n1il11 1111 1 1111 11 111111111 11111 111111111 11 111111111111111 1 111 1111111 111 11111 111111111111 Illlllllll 1111 100 2-28-50 GL -5822 EV-309 PAGE 4 3-50 3-50 (11M) Filing No. 8850 ALTERNATE HOLE MANUFACTURERS OPTION OUTLINE iGNITRON GL -5822 Ig1"MAX. 2 3 -12" IMffAvX1.AX l1'+6-16 I°± L32" 'IDIA HOLE ANUDE TERMINAL WATER MAX. OUTLET 4241D4IAA.-4-- CLEARANCE FOR RADJATOR A 27r. MAX. 212 I. -1P" IPE 8 IGNITOR TERMINAL 0.250u+.010" DIA. CATHODE TERMINAL (IMAX.-* 1" -32 8-16 NOTE- ENVELOPE IS AT i" CATHODE POTENTIAL MAX. EXHAUST TUBE ALTERNATEPOSITION MANUFACTUREP OPTION U 4- It EXHAUST TUBE 900+ 10° 25± 14" MAX. 12- MAX. 1043-+ 5 8 WATER INLET 2§-;± 2i '; 7+ I" DIA.HOLES "MAX I" E MAX. I" 2 ++-3I2 MA 4X. - " 90°+10° -161VIAX K-5309175 Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 10-2 1 -49 DESCRIPTION AND RATING GL -6504 ET-T1131A PAGE 1 11-57 IGNITRON LOCOMOTIVE RECTIFIER SERVICE -350 AMPERES THREE IGNITORS The GL -6504 is a double -grid ignitron designed for railroad locomotive rectifier service. In this service twelve tubes will supply d-c power for a 4000 -horsepower locomotive. A coaxial cathode -current return reduces magnetic fields due to tube currents. The tube also features baffles in the mercury pool to assure con - tact between the mercury and the ignitor points during swaying of the equipment. A companion tube, the GL -6509 ignitron, is available to supply the auxiliary power require- ments of applications which the main power source. use the GL -6504 as GENERAL TECHNICAL INFORMATION Electrical Cathode Excitation-Cyclic Cathode Spot Starting-Ignitor Number of Electrodes Main Anodes Main Cathodes Ignitors Shield Grids Control Grids ®Arc Drop at 1000 Peak Amperes ®Arc Drop at 2000 Peak Amperes (See Curve K -69087-72A709 on page three for details) 1 1 3 1 1 .20.5 3 2 24 t 2 Volts Volts GENERAL ELECTRIC Supersedes ET -T1131 dated 4-55 GL -6504 ET-T1131A PAGE 2 11-57 TECHNICAL INFORMATION (CONT'D) Mechanical Envelope Material-Stainless Steel Net Weight, approximate Thermal Type of Cooling-Water Inlet Water Temperature, minimum Outlet Water Temperature, maximum Water Flow, minimum At Continuous Rated Average Current At No Load§ Temperature Range Characteristics for Water Cooling at Rated Minimum Flow Water Temperature Rise, maximum Pressure Drop at 10 Gallons per Minute, maximum El Maximum Working Water Pressure Non Shock 95 Pounds 30 C 55 C 10 Gallons per Minute 1 Gallons per Minute 40 to 45 C 65 C 1.5 Pounds per Square Inch 100 Pounds per Square Inch MAXIMUM RATINGS AND TYPICAL OPERATION Power -Rectifier Service, Continuous Duty Ratings are for Zero -Phase -Control Angle Maximum Peak Anode Voltage Inverse Forward Maximum Anode Current* Peak Average Continuous Two Hours Fifty Minutes Twelve Minutes Six Minutes Four Minutes Fault Forward Direction Reverse Direction Maximum Duration of Fault Current Frequency Range Passengert 350 440 490 560 660 720 4000 Volts 100 Volts 2000 Amperes Freight 300 Amperes 380 Amperes 420 Amperes 490 Amperes 520 Amperes 540 Amperes 15,000 30,000 0 15 25-60 Amperes Amperes Seconds Cycles per Second Characteristics Maximum Inverse Voltage Recommended Pulse Length Minimum Pulse Length, for,average anode currents greater than 8 amperes Maximum Pulse Length Volt -Ampere Characteristics-See Curve K69087 -72A803 on page three for details. Shiald-Grid Voltage Minimum Peak Forward 200 Peak Inverse, Shield -Grid Current Peak Forward 0.2 Peak Inverse Control -Grid Voltage Peak Forward 200 Peak Inverse 100 Control -Grid Current Peak Forward 0 4 Peak Inverse 0 4 5 Volts 800 Microseconds 150 Microseconds 4000 Microseconds Maximum 500 Volts 200 Volts 5 Amperes 0.2 Amperes 500 Volts 200 Volts 5 Amperes 1 Amperes Service Factors Energized -50 percent of annual hours Passenger Service -80 percent Freight Service -80 percent Short time loads applied following light load. Short time loads applied following continuous operation at full load. § Water flow should be continued for at least one hour after removal of anode power. Denotes an addition. ej) Denotes a change. IGNITOR VOLT-AMPERE REQUIREMENTS FOR SEPARATE EXCITATION SEALED-IGNITRON RECTIFIER THE IGNITOR FIRING CIRCUIT SHOULD BE DESIGNED TO OPERATE WITHIN THE SHADED AREA 800 700 600 500 I IGNITOR 800p.SEC RECOMMENDED PULSE WIDTH 400 300 200 MINI UM REQUIRED 100 MAXIMUM ALLOWED 0 20 40 60 80 PEAK IGNITOR CURRENT IN AMPERES K -69087 -72A803 --New curve ARC DROP 25 11-8-57 GL -6504 ET.T1131A PAGE 3 11-57 20 15 0 500 1000 K-69087-72A709-Curve revised PEAK ANODE CURRENT IN AMPERES 1500 2000 11-8,57 GL -6504 ET-T1131A PAGE 4 11-57 4 13" L-2634"DIA.32 VIEW SHOWING SHIELD - GRID TERM INAL 1=-4-r 14L - VIEW SHOWING IGNITOR 8 CONTROL - GRID TERMINALS ANODE TERMINAL , 4TDIA. MAX 5" 164I-+43" 1" I" *TRI" IAL 2-4--+ig SHIELD -GRID TERMINAL I-4- CATHODE TERMINAL TUBULATION I" y9"DIA. HOLES 2 2"I 32 DIA. A 2 MAX' oit Pfoind es 5 DIA. 45°*5° 9-2-I -D+4I IA 2" TUBE MOUNTING - AREA + 278- -7 ig WATER OUTLET 3" IPS WITH CAP '"*1 I438"4-. I" HANDLES 12" MAX. 55 6-4'MAX. MAX rgD1A. CONTROL -GRID TERMINAL TOP VIEW 15° -16 90°1 5° .t10° 1" 22I +is WATER INLET a3'IPS WITH GAP I" MAX. -41 9" DI A. MAX. 1 3M 2" +1/2" ' 8 -316 ..v . 0 0-_,..,_- -=-_- 4,m=_'=i=._i_k___,, il I, ii -1 d. 14-3" iMAX Y e 1351 \s, IGNITOR TERMINALS BOTTOM VIEW 1 7 !"MIN. DIA1P1 8 TULE MOUNTING 51 I" O.D.,-. AREA 16 8 . N.22020AZ-Outline Revised 11-15-57 ELECTRONIC COMPONENTS DIVISION GENERAL d ELECTRIC Schenectady 5, N. Y. DESCRIPTION AND RATING GL -6511 ET-T1142A PAGE 1 12-57 IGNITRON TEMPERATURE CONTROLLED FREQUENCY -CHANGER WELDING SERVICE POWER -RECTIFIER SERVICE The GL -6511 ignitron is a sealed, stainless -steel jacketed, water-cooled mercury -pool tube for control of frequency -changer resistance welders. This method of resistance welding converts three- phase 60 -cycle power to single-phase power at four to twelve cycles per second. A particular advantage of this method is the appreciable reduction of kilovolt -ampere demand from that required in single-phase welding, with consequent saving in the amount of power required. In addition, the threephase circuit balances the power load and makes possible improved results in welding aluminum, magnesium, and their alloys. This tube is identical in ratings and characteristics to the GL -5822-A. Mechanically, it has the additional feature of an integral thermostatic arrangement with protective features. The arrangement includes a switch which controls a solenoid valve in the water -supply line to the tube in response to increasing and decreasing tube tern - perature, thus maintaining the amount of cooling water to the minimum required by the operating conditions. It also includes an over -temperature switch which may be used to remove power from the ignitron when its temperature exceeds a safe value. This new construction prevents excessive conden- sation over the external parts of the tube under conditions of high humidity. Another advantage is the appreciable saving in maintenance costs over tubes of the old design since this control feature, in addition to greatly reducing the amount of water required, eliminates the necessity for such safety devices as water -flow relays, water over -temperature relays, and water -pressure interlocks required with the older design tubes. In applications where the cooling water flows through three tubes in series, this tube can be used with two GL -5822 -A's since the GL -6511, in the position nearer the water drain where it receives the warmer water, can control the flow to all tubes under normal conditions. GENERAL ELECTRIC Supersedes ET -T1142 dated 1-55 GL -651 1 ET-T1142A PAGE 2 12-57 TECHNICAL INFORMATION GENERAL Electrical Cathode Excitation-Cyclic Cathode Spot Starting-Ignitor Number of Electrodes Main Anodes Main Cathodes Ignitors Arc Drop at 1500 Peak Amperes Mechanical Envelope Material-Stainless Steel Net Weight, approximate Thermal Type of Cooling-Water Inlet Water Temperature, minimum Inlet Water Temperature, maximum Water Flow, minimum I At Continuous Rated Average Current Characteristics for Water Cooling at Rated Minimum Flow Water Temperature Rise, maximum Pressure Drop at 1.5 Gallons per Minute, maximum Working Water Pressure-Non-shock 1 1 1 25 Volts 8.4 Pounds 10 C 30 C 1.5 Gallons per Minute 6C 5 Pounds per Square Inch 100 Pounds per Square Inch MAXIMUM RATINGS AND TYPICAL OPERATION Frequency -Changer Resistance Welding Service or Power -Rectifier Service-Intermittent Duty Ratings are for Zero -phase Control Angle-See curve K -69087-72A316 on page four for details. Maximum Peak Anode Voltage Inverse 1200 1500 Forward 1200 1500 Maximum Anode Current* Peak Corresponding Average 1500 20 1200 16 Average 70 56 Corresponding Peak Maximum Averaging Time Ratio of Average to Peak Current Maximum Averaging Time Ratio of Fault to Peak Current Maximum Duration of Fault Current 420 6.25 0.166 0.2 12.5 0.15 336 6.25 0.166 0.2 12.5 0.15 Frequency Range 50-60 50-60 Volts Volts Amperes Amperes Amperes Amperes Seconds Seconds Seconds Cycles per Second El Ignitor Characteristics Anode Firing Maximum Inverse Voltage Maximum Positive Voltage-Anode Voltage Ignitor Voltage Required to Fire Ignitor Current Required to Fire Starting Time at Required Voltage or Current Separate Excitation Maximum Inverse Voltage Recommended Pulse Length Minimum Pulse Length, for average anode currents greater than 20 amperes Maximum Pulse Length Volt -Ampere Characteristics-See Curve K -69087-72A741 on page three for details. 5 Volts 200 Volts 30 Amperes 100 Microseconds 5 Volts 500 Microseconds 150 Microseconds 4000 Microseconds Temperature -Control -Switch Ratings t Maximum Voltage Maximum Current Over -Temperature Switch Water -Control Switch 575 Volts 6 Amperes 1.5 Amperes GL -651 1 ET-T1142A PAGE 3 12-57 TECHNICAL INFORMATION (CONT'D) Temperature -Control -Switch Ratingst (Cont'd) Maximum Peak Potential of Tube Water Cylinder Above Switch Circuit Switch -Contact Arrangement Over-Temperature-Switch-Normally Closed (Contacts Open on Temperature Rise) Water -Control Switch-Normally Open (Contacts Close on Temperature Rise) 1500 Volts * Straight line interpolation on log -log paper is allowed between corresponding points. t Suitable fuses should be provided in the switch circuits to prevent a power arc, should a ground occur in the switch or wiring. t Water flow should be continued for fifteen minutes after removal of anode power. El Denotes an addition. IGNITOR VOLT-AMPERE REQUIREMENTS FOR SEPARATE EXCITATION SEALED-IGNITRON RECTIFIERS THE IGNITOR FIRING CIRCUIT SHOULD BE DESIGNED TO OPERATE WITHIN THE SHADED AREA 800 1111111111111 1 11 ELEMENTARY CIRCUIT FOR CAPACITOR FIRING 700 ril "' Vu'mAll 1 1 WilmmgmmmanaMMMMMMM i .... , 11111 91111111 a.11 Ammt,_ 1111 YMIIIMMIgNikiiiiiill 1111 MIMPA1M. 2 600 'A MM IVIII 1 IMMEMI 1 .1 irquiliii !milli... 1 :241t0;0111 riPlirm' pi M 500 tdadtAiCL , 110.5151 l Imam:1MAIM 1 .IIMI E1M1- il- :lmaiurds 1 : 1 Miran" MM '` 1691 1 nmar-m %IL uluel 400 ill A NleM 'x..M,A, . MM Imp 11: 111111111 1 1 M 1..irwmorie MMEI IMMEO 11111 ourairt 300 IIIMMINMlig 111 ra MMMM up, A owl IrJr411, / 41,/uw..1 1.1. C 1 MMMMM II1 114/51 WRIVAd li 200 a 1MM' aplipaw.111111 "' Onllrild1015111111 ° A Ma. MM M 1 :16 11 111 1 li 1111E1111111FA%A AMA Pitill 1.11 IIMMEL: MM u M1141111111E1 MM 111111111111 il ...,,,:rma."..7 MMM I 1111111.111.1.11 1 100 , M inta Orli Al 111111 111111 .m.a.m.m.a.,.,u.n.tr.A.m...4. DECD 1 0 20 40 60 80 K -69087-72A741 PEAK IGNITOR CURRENT IN AMPERES 12-9-55 K-9033525 5-25-54 SELF OR ANODE EXCITATION IN WHICH A PART OF THE LOAD CURRENT IS DIVERTED THROUGH THE IGNITOR THYRATRON GL 5560 ELM IMII .00Imf GRID CONTROL VOLTAGE OR. WELDER SERVICE A -C LINE R 220V 2 440V 4 550V 5 K-9033542 12-6-44 GL -651 1 ET-T1142A PAGE 4 12-57 FREQUENCY -CHANGER RESISTANCE WELDING SERVICE OR POWER RECTIFIER RATING-INTERMITTENT SERVICE -1-. 1E.1d1. ll L l kagemetk/ au: ikcppR 1 " MI inrailki," "kr 111111111Ili l (111111 1111i0 III 1111111111H I lilini1111114." 1 11111M.M 1 EM llll m1u11m111 mun 110111111 H 1 111 11 11111 11111 MIIIIIIIIMMIN11111111111 ".4 il'ideltd-dIelislintafilaimEr9 Tim% m. 1 11..11:111nuiliml nqiiiiii111101111111111111111" llemP nHIM111111111111111 H1111 in 11111101 IIIIIIHI1 NIC'f i S FAIJ//1 IF "" IIM N 111111. ..... EVIEN111.1111111.10111-114. I HEIN 1111111.IM "'"""Lifildnian INI111116111 1000 sammlal .:affirm IP 1" Ugh: 111 I AIME' in 7 llll ..n " algsmouriiiir,; iGw11 j . " limieeencarsu:rratit - 11111_11_11Ellk`in lllIIJ I IIMITIN 11111 1 1111H11 111111111 II 1 11111 'IN UNIT I Ill1111 .1 1:11: 1111. sonitor1 ;1 1111 100 .... h1 .... HI1111 pm . 11111111111 I UM MI0111111 111111J 111 1 II 1111111 11111111111111 111111ilu1m1llI1i 1u.u..l.. 111111 I 111im11o11s1i1m11im111iii1m1 1i1l1im11i1n1 1,1 ill 1111 11 1111 II 11 1111 IM1 11 1 11111 111111111 111111111111 1 11111 882888811u11n11u11n1HeWth111I1l1lI1l1ll1l1l1l 1811 2 e ... ..... .....=an LI- .... " .1 '111111PR: I m ni1111.. °1111 I.. n 111111111111111 lllllllllllll 11111111111 111111 1 1111111111 111111111 II llllll 1111111111111 111111111 llllllll 11111 lll 11111111111 111 11111111 111111111 lllllll M I llllll lllllll I II llllll I 11 11 lllllllllllll MINI lll 1111 I 1111111111 11111 /11111111111, 11 1 K -69087-72A316 AVERAGE ANODE CURRENT IN AMPERES PER TUBE 11-3-54 MAXIMUM AVERAGING TIME = 6.25 SECONDS I AVERAGE MAXIMUM AVERAGING TIME 0.2 SECOND = 0.166 MAXIMUM I PEAK I FAULT I PEAK MAX. MAXIMUM DURATION OF FAULT CURRENT 0.15 SECOND =12.5 MAXIMUM 25" 64 2 : -4--- 16 17 MAX 32 ANODE TERMINAL (NOTE 3) OUTLET ve PIPE I 2- MAX. r_ 116 MAX. CLEARANCE FOR RADIATOR 24 DIA. MAX. GL -651 1 ET-T1142A PAGE 5 12-57 ENVELOPE ( NOTE I) OVER -TEMPERATURE TERMINALS SEAL ClrecTR2L210VER 10 37";4_5 8" 4 4 DIA. MAX. IGNITOR TERMINAL I" 7I4" DIA I"MAX. WATER -CONTROL TERMINALS 14" MAX. 25 "t 4 8-16 CATHODE TERMINAL ( NOTE 3 ) EXHAUST TUBE 1- 2MAX ALTERNATE POSITION MANUFACTURER'S OPTION 1"+ i" T-F6 EXHAUST TUBE str±icr \I" n 7"+ I" 16 DIA. HOLE + I" 2 -32 2-4 MAX. I- MAX. -MAX. 90°±10° 16 MAX. NOTES: I. ENVELOPE IS AT CATHODE POTENTIAL. 2. CONTROL COVER IS AN ELECTRICAL INSULATOR. 3. BOTH AN ODE AND CATHODE TERMINAL SLOTTED FOR EASE OF INSTALLATION K-69087-72A674-Outline revised. 12-20-57 ELECTRONIC COMPONENTS DIVISION GENERAL ELECTRIC Schenectady 5, N. Y. DESCRIPTION AND RATING GL -6958 ET -T 1 479 Page 1 1 1 -57 IGNITION POWER -RECTIFIER SERVICE INVERTER SERVICE TWO IGNITORS The GL -6958 is a double -grid ignitron designed A particular design feature of this tube makes it for industrial rectifier or inverter applications where it will operate at peak inverse voltages as high as 4000 volts. In such applications six tubes will supply 3000 kilowatts at voltages of 1800 or 3600 volts d -c, depending upon the circuit used. especially suitable for use where voltage control by phase retard is in excess of the amounts usually required. In addition, the tube features a coaxial cathode current return which reduces magnetic fields caused by the tube currents. TECHNICAL INFORMATION GENERAL Electrical Cathode Excitation-Cyclic Cathode Spot Starting-Ignitor Number of Electrodes Main Anodes Auxiliary Anodes Main Cathodes Ignitors Shield Grids Control Grids Arc Drop At 1000 Peak Amperes At 2000 Peak Amperes (See curve K -69087-72A709 on page three for details) 1 1 1 2 1 1 20.5 t 2 Volts 24.0 t 2 Volts GENERAL ELECTRIC GL -6958 ET -T1479 PAGE 2 11-57 TECHNICAL INFORMATION (CONT'D) Mechanical Envelope Material-Stainless Steel Net Weight Thermal Type of Cooling-Water Inlet Water Temperature, minimum Outlet Water Temperature, maximum Water Flow At Continuous Rated Average Current, minimum At No Load, *minimum Temperature Range Characteristics for Water Cooling at 10 Gallons per Minute Water Temperature Rise, maximum Pressure Drop, maximum Working Water Pressure-Non Shock, maximum 95 Pounds 30 C 55 C 10 Gallons per Minute 1 Gallons per Minute 40 to 45 C 6.5 C 1.5 Pounds per Square Inch 100 Pounds per Square Inch MAXIMUM RATINGS AND TYPICAL OPERATION Power -Rectifier or Inverter Service, Continuous Duty Ratings Are for Zero -Phase -Control Angle Maximum Peak Anode Voltage Inverse 4000 Volts Forward 4000 Volts Maximum Anode Current Peak 2000 Amperes Average Continuous 275 Amperes Two Hours 350 Amperes One Minute 570 Amperes Fault Forward Direction 15,000 Amperes Reverse Direction 30,000 Amperes Maximum Duration of Fault Current 0.15 Seconds Frequency Range 25 to 60 Cycles per Second Ignitor Characteristics Maximum Inverse Voltage 5 Volts Recommended Pulse Length. 800 Microseconds Minimum Pulse Length, average anode current greater than 8 amperes 150 Microseconds Maximum Pulse Length . 4000 Microseconds Volt -Ampere Characteristics-See curve K -69087-72A803 on page three for details. Shield -Grid Voltage Peak Forward Peak Inverse Shield -Grid Voltage Peak Forward Peak Inverse Control -Grid Voltage Peak Forward Peak Inverse Control -Grid Current Peak Forward Peak Inverse DC Bias Minimum Maximum 200 500 Volts 200 Volts 0.2 5.0 Amperes 0.2 Amperes 200 500 Volts 100 200 Volts 0.4 5.0 Amperes 0.4 1.0 Amperes -90 -110 Volts * Water flow should be continued for one hour after removal of anode power. IGNITOR VOLT-AMPERE REQUIREMENTS FOR SEPARATE EXCITATION SEALED-IGNITRON RECTIFIER THE IGNITOR FIRING CIRCUIT SHOULD BE DESIGNED TO OPERATE WITHIN THE SHADED AREA 800 700 600 500 I IGNITOR 800p.SEC RECOMMENDED PULSE WIDTH 400 300 200 MINI UM REQUIRED 100 MAXIMUM ALLOWED 0 20 K -69087-72A803 40 60 80 PEAK IGNITOR CURRENT IN AMPERES ARC DROP 25 11-8-57 GL -6958 ET -T1479 PAGE 3 1 1-57 20 O z 0 15 0 K -69087-72A709 500 1000 PEAK ANODE CURRENT IN AMPERES 1500 2000 1 1 -8-57 32 1...7ULfb VIEW SHOWING IGNITOR AND SHIELD GRID TERMINALS 4 4.,A VIEW SHOWING AUXILIARY ANODE a CONTROL GRID TERMINALS ANODE TERMINAL 44DIA. MAX ANODE HEATER MOUNTING BRACKET It 270 2"MIN 14 MAX TUBE MOUNTING AREA r. MAX WATER OUTLE 3-IPS WITH C 48".1. 22P1' WATER INLET 12,'IPS WITH CAP I" MAX. I 3" 41t4i ifth jDIA 7,MAX iMAX VIEW AT "A" NDIA SHIELD -GRID TERMINAL 450150 CATHODE TERMINAL 1.01A HOLES I. 16 TUBULAT1ON 21-N N _/ 9p4DIA. TEDIF mTG Atit.il .111,40 HOLE CIRCLE atkiA pay' 15°f 10° 1111W N AI MAX 2. CONTROL GRID TERMINAL TOP VIEW 2 12,41' R. 16 MAX. TI -3/16" K69087 -72A787 7 f 'MIN. DIA 18 t; 450'110° m°±100 AUXILIARY ANODE TERMINAL 10° IGNITOR TERMINALS 10-30-57 ELECTRONICS DEPARTMENT GENERAL ELECTRIC Ignitron FG-235-A--Specifications General Equipment using this type should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum rat- ings given in the Technical Information. Mechanical Requirements The tubes shall have outline drawing. the dimensions and be within the tolerances shown on the Electrical Requirements TEST Ignitor Resistance Peak Voltage Drop Conduction Time Averaging I RMS Demand Ib Per Spot See Amp Current Amp Seconds Time Seconds Duration LIMITS Ep Note Min Amp -Min Min Minimum Max Of Test Volts Min Max 1 5 110 Ohms 2 100 16 Volts A -c Welder Control Operation -Intermittent 3 1265 100 1 6.19 15 min. Minimum 5 Arc Backs 200 Ignitor Voltage for Ignition 30 Ignitor Current for Ignition 100 Ignitor Ignition time High Potential 4 10 sec 12000 Notes 1. With no other voltage applied, the ignitor -to -cathode resistance shall be measured with the tube mounted vertically and shall be within the limits specified. For this test the tube temperature shall be between 15 and 35 C. 2. With the tube operating in a 60 -cycle, half -wave rectifier adjusted to give the specified peak anode current and no greater than average anode current, the peak voltage drop exclusive of starting voltage measured from anode to cathode shall not exceed the limit specified. This voltage may be observed by use of a cathode-ray oscilloscope connected directly, or through an amplifier to the tube under test. For this test the water temperature shall be less than 15 C. Rated water flow shall be used. 3. The tube shall be connected "back to back" with a previously tested good tube to control alternating current to an inductive load with a power factor lower than 30 per cent. The tube under test shall be in the trailing position. The ignitor of each tube shall be connected to a suitable firing control circuit in such a manner that current will flow through the ignitor in the forward direction only. The supply voltage shall be 575 plus or minus 25 volts rms, 60 cycles. With no phase retard the minimum rms demand current, conduction time per spot, and minimum average anode current shall be as specified. After the initial spot and for the next four spots, .the ignitor voltage for ignition shall not exceed 200 volts. During this and subsequent operation, the ignitor shall maintain control and the time required to initiate the arc shall not exceed 100 microseconds. During the last three minutes of tube operation, the ignitor firing shall be retarded in phase so that the rms demand current is 75 plus or minus 5 per cent of the previous value. During this period, the number of arc backs shall not exceed the specified maximum. At the end of this period, the ignitor current for ignition shall not exceed 30 amperes when flowing for a time not exceeding 100 microseconds. For this test rated water cooling shall be used at rated flow. 4. With the tube mounted in a vertical position, the specified voltage shall be applied for the specified time. During the last half of this test, there shall be no indication of current flow through the tube. Momentary flashes shall not be considered as an indication of current flow. This test shall be given at least 15 hours after operation for those tubes which have been operated. For this test the tube temperature shall be between 15 and 35 C. GENERAL ELECTRIC COMPANY, SCHENECTADY, N. Y. Electronics Department GENEP 1-1.T4 ELECTRIC ET -T513 5564-Technical Information Type of Pool Tube - Ignitron Principle Use - Rectification The 5564 is a mercury -pool tube of permanently sealed, steel construction, designed for rectifier service in the 125-, 250-, 600-, and 900 -volt d -c power fields. The tube has two ignitors, only one of which is used at a time. Outputs up to 2000 kilowatts may be obtained depending on the number of ignitions, the output voltage, and the circuit. Arc losses are low. Phase control of the ignition impulse permits voltage control of the rectified output. Excitation of the small auxiliary anode stabilizes the cathode spot for very small anode currents. GENERAL Electrical Data Type Cathode Excitation - Cyclic Type Cathode Spot Starting - Ignitor Number of Electrodes Main Anodes Main Cathodes Auxiliary Anodes Ignitors Control Grids Arc Drop at 1200 Peak Amperes 1 1 1 2 1 18.8 Volts Cathode Excitation Requirements Ignitor Voltage Required to Fire Ignitor Current Required to Fire Peak Excitation Arc Current Required, minimum Excitation Arc -Drop Voltage 150 Volts 40 Amperes 4 Amperes 12 Volts Grid Requirements Positive Current to Establish Conduction Minimum Voltage to Establish Conduction Minimum Voltage to Prevent Conduction 0.1 Ampere 50 Volts 100 Volts Mechanical Data Envelope Material - Metal Maximum Overall Length 41 Inches Maximum Overall Width, Exclusive of Handles and Water Connections 9 1/8 Inches Net Weight 90 Pounds Type of Cooling - Water Characteristics for Water Cooling at Rated Minimum Flow Water Temperature Rise, maximum 5 C Pressure Drop at 6 Gallons per Minute, maximum 1 Pound per Square -2- MAXIMUM RATINGS As Power Rectifier Tube* Maximum Peak Anode Voltage Inverse 900 2100 Volts Forward 900 2100 Volts Maximum Anode Current Peak 3600 2400 Amperes Average Continuous 400 300 Amperes 2 Hours 600 450 Amperes 1 Minute 800 600 Amperes Surge 25,000 Maximum Duration of Surge Current 0.15 19,000 Amperes 0.15 Second Frequency Range 25 60 Cycles per Second Maximum Outlet Water Temperature 6o 50 C Minimum Outlet Water Temperature 10 10 C Minimum Water Flow at Continuous Rated Average Current 6 6 Gallons per Minute Minimum Water Flow at No Load 1 1 Gallon per Minute Electrical ratings are for zero phase -control angle. Ignitor Maximum Voltage Positive Negative Maximum Current. Peak Average Maximum Averaging Time Starting Time at Required Voltage or Current Anode Volts 5 Volts 100 Amperes 15 Amperes 2 Amperes 10 Seconds 100 Microseconds Auxiliary -Anode Maximum Current Peak Average Maximum Averaging Time RMS Maximum Peak Forward Voltage Maximum Peak Inverse Voltage Main Anode Conducting Main Anode Not Conducting 30 5 10 12.5 150 Amperes Amperes Seconds Amperes Volts 25 Volts 150 Volts Grid Maximum Peak Forward Voltage Maximum Peak Inverse Voltage Maximum Grid -Current Peak Positive Peak Negative Average RMS 250 Volts 250 Volts 1,..5 Amperes 0.5 Ampere 0.5 Ampere 1.0 Ampere -6 2 -16 --Z. DIA 2 1401E5 3F r FT. 2 3211 234 MAX. VIEW A GRID T ! WATE R A OUT LET S. 4 IGNITOR RMINI\LS 81 5 .3-8+.7 r-- ,/2 3 -vri'D m/8 DEEP 4 -1 -IDLES ON 27/6' IGNIT0R,zt TERMINAL 17 4 DIA. AUXILIARY ANODE foGRID -TERMINALS AUXILIARY ANODE TEWIINAL IGNITOR 12 TERMINAL II 1 II 16± 94-: DuTSIDE. D A. WATER INLET 3.; I. P.S. 141" t 1-4-4 t 141" 194 TUBE SUPPORT 4CATHODE. TERMINA1.. L VIEW.B ivrAx" VARIATION ta! FRom4. -4 MAX, 5564 OUTLINE DESCRIPTION AND RATING GL -7042 ET -T1510 PAGE 1 12-58 IGNITRON POWER RECTIFIER SERVICE INVERTER SERVICE TWO IGNITORS TEMPERATURE CONTROLLED 2000 AMPERES PEAK The GL -7042 is a double -grid ignitron for industrial rectifier or inverter service at voltage levels up to 4000 volts peak inverse. This tube is particularly suitable where more than usual amounts of voltage control by phase retard are required. The GL -7042 is identical in ratings and characteristics to the GL -6958 but it has the additional advantage of an integral thermostatic control arrangement with protective features. The arrange - ment includes a switch which controls a solenoid valve in the water -supply line to the tube in response to increasing and decreasing tube temperature, thus maintaining the minimum amount of cooling water required by the operating conditions. It also includes an over -temperature switch which may be used to remove power from the ignitron if its temperature should ever exceed a safe value. TECHNICAL INFORMATION GENERAL Electrical Cathode Excitation-Cyclic Cathode Spot Starting-Ignitor Number of Electrodes Main Anodes Auxiliary Anodes Main Cathodes Ignitors Shield Grids Control Grids Arc Drop At 1000 Peak Amperes At 2000 Peak Amperes (See Curve K -69087-72A709 on Page Three for Details) 1 1 1 2 1 1 20.5 2 Volts 24.0 Volts GENERAL ELECTRIC GL -7042 ET -T1510 PAGE 2 12-58 TECHNICAL INFORMATION (CONT'D) Mechanical Envelope Material-Stainless Steel Net Weight, approximate Mounting Position-Vertical, Anode Terminal Up 95 Pounds Thermal Type of Cooling-Water Inlet Water Temperature, minimum* 10 Inlet Water Temperature, maximum t 45 Outlet Water Temperature, maximum 55 Water Flow, water valve open/ At Continuous Rated Average Current, minimum 10 Water flow should be continued for at least one hour after removal of anode power. Characteristics at 10 Gallons per Minute Water Temperature Rise, maximum 6 5 Pressure Drop, maximum 1 5 Working Water Pressure-Non-Shock, maximum 100 C C C Gallons per Minute C Pounds per Square Inch Pounds per Square Inch MAXIMUM RATINGS AND TYPICAL OPERATION Power -Rectifier or Inverter Service, Continuous Duty Ratings are for Zero -Phase -Control Angle Maximum Peak Anode Voltage Inverse Forward Maximum Anode Current Peak Average Continuous Two Hours One Minute Fault Forward Direction Reverse Direction Maximum Duration of Fault Current Frequency Range 4000 Volts 4000 Volts 2000 Amperes 275 Amperes 350 Amperes 570 Amperes 15,000 30,000 0 15 25 to 60 Amperes Amperes Seconds Cycles per Second Ignitor Ratings, Separate Excitation Maximum Inverse Voltage 5 Volts Recommended Pulse Length 800 Microseconds Minimum Pulse Length Average Anode Current Greater than 8 Amperes 150 Microseconds Maximum Pulse Length 4000 Microseconds Volt -Ampere Requirements (See Curve K -69087-72A803 on Page Four for Details.) Shield -Grid Characteristics Voltage Peak Forward Peak Inverse Minimum 200 Maximum 500 Volts 200 Volts Current Peak Forward Peak Inverse 0.2 5.0 Amperes 0.2 Amperes Control -Grid Characteristics Voltage Peak For ward Peak Inverse 200 500 Volts 100 200 Volts Current Peak Forward Peak Inverse DC Bias 0.4 5.0 Amperes 0.4 1.0 Amperes -90 -110 Volts TECHNICAL INFORMATION (CONT'D) MAXIMUM RATINGS AND TYPICAL OPERATION (Cont'd) GL -7042 ET -T1510 PAGE 3 12-58 Temperature -Control Switch Ratings§ Maximum Voltage 575 Maximum Current Over -Temperature Switch 6 Water -Control Switch 1 5 Maximum Peak Potential difference between Switch Circuit and Tube Water Cylinder. 1500 Volts Amperes Amperes Volts Switch -Contact Arrangement Over -Temperature Switch-Normally Closed (Contacts Open on Temperature Rise) Water -Control Switch-Normally Open (Contacts Close on Temperature Rise) *This value assumes that the water will be supplied through a rapid -closing solenoid valve which prevents all water flow except when the water -control switch closes. tIf two tubes are cooled in series this value must be low enough to prevent the maximum outlet water temperature from being exceeded. Water flow should be continued for one hour -after removal of anode power. §Suitable fuses should be provided in the switch circuits to prevent a power arc should a ground occur in the switch or wiring. APPLICATION NOTES In order to realize the advantage of safe tube operation on low temperature cooling water, water must be supplied to the tube through a rapid closing solenoid valve controlled by the water -control switch on the tube. The valve must completely stop the water flow to the tube except when the water -control switch is closed. The cooling water for two tubes may be connected in series provided the inlet water at the first tube is above +20 C and the outlet water of the second tube is below 55 C. If two tubes are connected in series only one solenoid valve is required for each pair of tubes and it is only necessary to use the thermostat on the tube installed in the outgoing end of the series pair. For more complete protection two temperature -controlled tubes should be used with their over -temperature switches in series and their water -control switches in parallel. For inlet water temperatures below 20 C, each tube should be connected to the water supply through a rapid -closing solenoid valve controlled by the water -control switch on the tube thermostat. To prevent excessive condensation of mercury on the inside of the glass, heat should be externally applied to the anode glass -seal area. ARC DROP 25 ..iiI1111111.311a 20 15 10 0 K -69087-72A709 500 1000 1500 PEAK ANODE CURRENT IN AMPERES 2000 11-8-57 GL -7042 ET 41510 PAGE 4 12-58 IGNITOR VOLT-AMPERE REQUIREMENTS FOR SEPARATE EXCITATION SEALED-IGNITRON RECTIFIER THE IGNITOR FIRING CIRCUIT SHOULD BE DESIGNED TO OPERATE WITHIN THE SHADED AREA 800 / 700 600 500 n I IGNITOR 800I.LSEC RECOMMENDED PULSE WIDTH 400 300 200 MINI UM REQUIRED 100 MAXIMUM ALLOWED 0 20 40 60 80 100 PEAK IGNITOR CURRENT IN AMPERES K -69087-72A803 120 140 11-8-58 SHORT -PERIOD OPERATION RATINGS PEAK INVERSE VOLTAGE -4000 VOLTS INLET WATER TEMPERATURE =45 C PHASE RETARD A =ZERO B =15%, ESTIMATED C =50%, ESTIMATED 600 500 400 300 200 100 0 I MINUTE K -69087-72A809 5 MINUTES I HOUR DURATION OF LOAD 2 HOURS 12 HOURS (CONTINUOUS) 1-29-58 1" 4 -6241"DIA VIEW SHOWING IGNITOR AND SHIELD GRID TERMINALS VIEW SHOWING AUXILIARY ANODE 8 CONTROL GRID TERMINALS ANODE TERMINAL 4-34" DIA MAX 45-.. MIN 8 2"MIN BRACKET 2MAX VIEW AT "A" SHIELD -GRID TERMINAL CATHODE TERMINAL ,., +50 a DIA HOLES 16 TUBULATION -5 DIA 16 g DIA 16 45" 5° NODE HEATER MTG. HOLE CIRCLE TUBE MOUNTING AREA 14- It MAX r* 12" MAX DIA J it I" I MIN 12-4 30 6-4 MAX 4 11 5 MAX I" 278- WATER OUTLET 4IPS WITH CAP 1# 6 -32 r SCREW 14 832+-8 8.14f MAX CONTROL COVER (INSULATING MATERIAL) HANDLES OVER- "` TEMPERATURE TERMINALS WATER -CONTROL TERMINALS 3., 2-4 MAX 5'+I"D16 IA 228 16 CONTROL GRID TERMINAL TOP VIEW 16 t 5° 90.t 1091105 TERMINALS 2212 - le, 8 WATER INLET 3" 4- IPS WITH CAP 1" MAX -4.1 - 91'MAX DIA --I. 6' -IT. -4- "MAX 7 3- 16" MAX r` 1. I III IL AUXILIARY ANOOf TERMINAL K -69087-72A815 ti MIN DIA --vj TUBE MOUNTING AREA 51.4. 8 16 - 8 135°+5° BOTTOM VIEW 2-26-58 ELECTRONIC COMPONENTS DIVISION GENERAL ELECTRIC Schenectady 5, N. Y. DESCRIPTION AND RATING GL -7151 ET -T1511 PAGE 1 12-58 IGNITRON THERMOSTAT BRACKET HIGH -EFFICIENCY COOLING AC CONTROL SERVICE -900 AMPERES The GL -7151 is a sealed water-cooled ignitron with a stainless -steel jacket for a -c control service. In such application two tubes in an inverse -parallel connection will control 4800 kilovolt -amperes at voltages of 250 to 500 volts over a frequency range of 25 to 60 cycles. The water-cooling chamber is especially designed to provide high -efficiency cool ing at the bottom of the tube without increasing the water pressure drop of the cooling jacket. GENERAL Electrical Cathode Excitation-Cyclic Cathode Spot Starting-Ignitor Number of Electrodes Main Anodes Main Cathodes Ignitors TECHNICAL INFORMATION Mechanical Envelope Material-Stainless Steel Net Weight Mounting Position-Vertical, Anode Terminal Up 1 1 1 70 Pounds GENERAL ELECTRIC GL -7 1 5 1 ET -T1511 PAGE 2 12-58 TECHNICAL INFORMATION (CONT'D) Thermal Type of Cooling-Water Inlet Water Temperature, minimum 0 Outlet Water Temperature, maximum 40 Water Flow, minimum 10 Water flow should be continued for at least one hour after removal of anode power Maximum Working Water Pressure, Non -Shock 100 Characteristics at 10 Gallons per Minute Water Temperature Rise, maximum 8 Pressure Drop, maximum 1 5 C C Gallons per Minute Pounds per Square Inch C Pounds per Square Inch MAXIMUM RATINGS AC Control Service, Two Tubes in Inverse Parallel, Ratings per Tube Voltage Range Maximum Demand Corresponding Average Current * Maximum Average Current* Corresponding Demand Maximum Demand Current Below 500 Volts* Maximum Peak Fault Current at 250 Volts Maximum Peak Fault Current at 600 Volts Frequency Range 250 to 600 4800 486 900 1600 9600 54,000 22,400 25-60 Volts RMS Kilovolt -Amperes Amperes Amperes Kilovolt -Amperes Amperes RMS Amperes Amperes Cycles per Second Ignitor Characteristics Anode Firing Maximum Inverse Voltage Maximum Positive Voltage-Anode Voltage Ignitor Voltage Required to Fire, minimum Ignitor Current Required to Fire, minimum Starting Time at Required Voltage or Current Separate Excitation Maximum Inverse Voltage Recommended Pulse Length Minimum Pulse Length, for average anode currents greater than 20 amperes Maximum Pulse Length Maximum Rate of Rise of Ignitor Current 5 Volts 200 Volts 30 Amperes 100 Microseconds 5 Volts 500 Microseconds 150 Microseconds 4000 Microseconds 2 5 Amperes per Micro- second Volt -Ampere Characteristics-See Curve K -69087-72A741 on Page Three for Details. *A concentric current -return path from the cathode terminal to the top of this tube should be provided in installations where high -current conductors, including other ignitrons, are operating within 20 inches of it. This is necessary to prevent the magnetic field established by the high current from disturbing the arc within the GL -7151. This return path can be made by clamping the cathode connection to the top of the tube jacket; or by extending, from the cathode terminal to a bus -bar connection at the top of the tube, four or more equally spaced copper bars placed around the circumference and running the length of the tube. Clean tight connections are necessary for proper conduction of the high currents. Control thermostats with mounting brackets are available through regular tube supply channels under the following catalog numbers: Flying -Lead Type Water -Control Thermostat-N15272AA Over -Temperature Thermostat-N15273AA Terminal -Block Type Water -Control Thermostat-N15286AA Over -Temperature Thermostat-N15287AA IGNITOR VOLT-AMPERE REQUIREMENTS FOR SEPARATE EXCITATION SEALED-IGNITRON RECTIFIERS THE IGNITOR FIRING CIRCUIT SHOULD BE DESIGNED TO OPERATE WITHIN THE SHADED AREA 800 II .: IIIIIIIIIIIIIIIMI.....1.1 ul mmummunmillunnquinumumwqmpummu ttruime-nadiiiinue""Haquiilighlidin 71 700 illimiliimi 4. leimill .5.1........... ............ . Ispdp iIsFillimaspill I moo 1;011 111111111111 1111111E4 1111 cill fi 11 III 1 "IIIMIIIMIIMEMMEMMIS .11,...m..11 1111 1 il I mu! IlIIim 600 IIIIIIM ill..IAMWD1 ME Illimplimilmr.. MI V 11 . 1. ...ill 1 UMWIMMIM MN MU PA.AWAORI MMMMMMMM MN e....-uwer zgo 9MMEM IIII I F-41:04111!!!!!!!!!!&:11! °1-11!4.1..11- 1.1!II !!!!!R IIIIIIIIIIIIIIIII alp: 500 14011/11111:11111111111111111111911 11111111 ' 1 Jim IIIIIIIIIIII 1....1. 1111101111ligimill IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII1 FIE 400 ii!'10111110101111 1111111111111111161111111111111111111 1 hill I iigglisio:i401011 IIIIIIIIIIII1111 IIIIIIIIIIIII Nils IIIIIAIIIIMIIIIIIIIIII MINIM Ell iiiii old ustimi iniii--- 1 41111 a II 141m!mmm, 14. Alippi me11111Numalliiiiiii ..111. 111111111051100. ' s IIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIII110 ' 'F'"'111.1 .... Fr 111111..1-11r11 200 11111111111110111101440111111111111110111111111111111111111111111 L allial°110002000itii111.111. 111111:111:11:1111:1111::::;;; iiiiillittlIPICIMIIIIPIIIIIIIII 11111111111111111111.1 .... .T71171111:-.0131 .. 1111. 100 IIIIIIIIIIIIII111010410,Pa IIIIIII 41111111111111111111111111 GL -7151 ET -T1511 PAGE 3 12.58 1111111111111111161111111111101111111111111111111 I 111 11111 20 40 60 80 PEAK IGNITOR CURRENT IN AMPERES K -69087-72A741 12-9-55 ARC DROP 40 30 DEMAND CURRENT VS PERCENTAGE DUTY TWO TUBES CONNECTED IN INVERSE PARALLEL Averaging Time 250 Volts -8.9 Seconds 500 Volts -4.5 Seconds 10,000 9000 8000 7000 6000 5000 sook 4 DSO 4),ffs, 4000 3000 20 2000 10 0 2000 4000 6000 8000 mp00 PEAK ANODE CURRENT IN AMPERES K -69087-72A847 5-1-58 1000 10 20 30 40 50 60 70 8090 IOD DUTY IN PERCENTAGE K -69087-72A854 6-9-58 GL -7151 ET -T1511 PAGE 4 12-58 2±32 DIA. 22 -3" MAX. 8 EXHAUST SEAL -OFF t--413M" AX. 16 DIA. f 2 MAX. WATER OUTLET (-I I. P S NIPPLE) 15-- MAX. 5 -i_n t 28 9"t 8. DIA. 3" 137 MAX. 2 - 13 THREAD 3" -4- DEEP 4 HOLES LOCATED ON 2P. 64 DIA. WATER INLET P S 4 NIPPLE -2 MAX. K -69087-72A816 (111 4 _4 3MAX CL -4 -11+ DIA.- 32 8 8 8 DIA. TUBE SUPPORT a CATHODE TERMINAL VARIATION t 3° FROM' IGNITOR TERMINAL .250"t .015" DIA. BOTTOM VIEW 1-2-58 ELECTRONIC COMPONENTS DIVISION GENERAL ELECTRIC Schenectady 5, N. Y. DESCRIPTION AND RATING GL -7171 ET -T1512 PAGE 1 12-58 IGNITRON CAPACITOR -DISCHARGE SERVICE DC SHORT -CIRCUITING -SWITCH SERVICE 35,000 AMPERES PEAK The GL -7171 is a sealed, stainless -steel jacketed the tube will carry peak currents up to 35,000 ignitron for use as a switch in capacitor -discharge amperes. circuits operating up to 10,000 volts. In this service TECHNICAL INFORMATION GENERAL Electrical Cathode Excitation-Cyclic Cathode Spot Starting-Ignitor Number of Electrodes Main Anodes Main Cathodes Ignitors Arc Drop At 4000 Amperes At 30,000 Amperes Peak Inverse Voltage, maximum Mechanical Envelope Material-Stainless Steel Mounting Position-Axis Vertical, Anode Lead Up Net Weight Thermal Type of Cooling-Convection Ambient Temperature, minimum Cathode Temperature, maximum Anode -Header Temperature, maximum* 1 1 1 20 Volts 55 Volts 10,000 Volts 2 Pounds 25 C 35 C 55 C GENERAL ha ELECTRIC GL -7171 ET -71512 PAGE 2 12-58 TECHNICAL INFORMATION (CONT'D) MAXIMUM RATINGS AND TYPICAL OPERATION Capacitor -Discharge Service, Pulse Duty, Sinusoidal Current Peak Anode Voltage Forward Inverse Critical Anode Starting Voltage, minimum Anode Current (See Curve K -69087-72A858 on Page Three for Details) Peak t Average Maximum Averaging Time Fault Maximum Duration Rate of Rise of Current Maximum Minimum Frequency of Current Conduction Periods, maximum Ionization Time DC Short -Circuiting -Switch Service Peak Anode Voltage Forward Inverse Critical Anode Starting Voltage, minimum Anode Current (See Curve K -69087-72A858 on Page Three for Details) Peak Average Maximum Averaging:Time Fault Maximum Duration Rate of Rise of Current Maximum Minimum Frequency of Current Conduction Periods, maximum Ionization Time 10,000 Volts 10,000 Volts 100 Volts 35,000 01 1 35,000 0 002 Amperes Amperes Cycle Amperes Seconds 5600 Amperes per Microsecond 1400 Amperes per Micro second 1 Per Minute 0 5 Microseconds 10,000 Volts 10,000 Volts 100 Volts 35,000 0 25 1 35,000 0 002 Amperes Amperes Cycle Amperes Seconds 5600 Amperes per Microsecond 1400 Amperes per Microsecond 1 Per Minute 0 5 Microseconds Ignitor Ratings Separate Excitation Ignitor Voltage Forward Open Circuit Inverse, maximum Ignitor Current Short Circuit Length of Firing Pulse, sine wave Anode Firing Ignitor Voltage Forward, maximum Inverse, maximum Peak Ignitor Current Minimum Maximum 1500 3000 Volts 5 Volts 200 250 Amperes 5 10 Microseconds 3000 Volts 5 Volts 200 250 Amperes *To prevent mercury condensation, the anode -header temperature should be higher than the cathode temperature at all times. Mercury must be kept away from the anode and anode seals. Before tube operation, the anode seals must be warmed, with respect to the cathode, long enough to vaporize all mercury from the seal area. Dampened oscillations are permissible provided the dampening coefficient is less than the value shown on the currentwaveform curve. The peak of the oscillation must not exceed 48,000 amperes. Tube must be operated within the area specified on the current -waveform curve. GL -7171 ET -T1512 PAGE 3 12-58 40,000 CURRENT -WAVEFORM CURVE MAXIMUM PERMISSIBLE CURRENT mmmimimmumumpimmumummpon pluming! oilmmi opmmommmummull limpommomm imiiihnoumominmommonimmommummummommmulou 30,000 1111111111111P111111111 111111111111111111111111111111111111111111111101111111111111011111111111111111111111111111111111 N 11111111111111 IINiiiiillE1111111111111111111111111111111111111111111111111111111111111111110111111111111111111111111111111 < 25,000 ce 20,00 U 11111101111111111111111111111111111111110111111111111111111011111111111111111111111111 15,000 mImmiummoimmimummummiammumwmuomunimummummumni6h..:2.1111111111111 Z 10,000 5000 100 K -69087-72A858 200 300 400 500 600 TIME IN MICROSECONDS 7-8-58 GL -7171 ET -T1512 PAGE 4 12-58 ANODE TERMINAL I. - MAX DIA. 16 3"± I" 8 - 20 NF -3 2.130"+.010 11 DIA. 21 MAX. I 1" 4 - 32 t'1 MIN. 16 IGNITOR TERMINAL 250"+ .010" DIA. K -69087-72A819 I, u -s- 5 - 8 CATHODE TERMINAL I MAX. t EXHAUST TUBE 9-8-58 ELECTRONIC COMPONENTS DIVISION GENERAL ELECTRIC Schenectady 5, N. Y. THYRATRONS APPLICATION DATA EU-116 PAGE 1 4-45 GENERAL 0 ELECTRIC THYRATRONS ETI-116 PAGE 2 4-45 DESCRIPTION A thyratron is a thermionic gas tube in which one or more electrodes initiate the current flow. The gas used may be one of the inert gases such as argon, xenon, or helium, or the vapor pressure of a few drops of mercury. The presence of this gas neutralizes by ionization, the electron space -charge around the cathode created by the electrons emitted from it. This space -charge, which is negative in effect and tends to drive the electrons back into the cathode, is one of the limitations on the amount of current a high -vacuum electronic tube can carry. Another limitation of high -vacuum tubes is the ability of the cathode to emit the electrons which comprise the unidirectional current flow. This factor however, can be controlled by design of an electron emitting source satisfactory for the size of the tube required. The absence of space charge and its accompany- ing losses in the thyratron allows larger electrode spacing and smaller -size electrodes for a given current -carrying capacity than is possible with high vacuum tubes. The elimination of space -charge also permits the use of an electron -emitting cathode of higher efficiency and much larger current -carrying capabilities than otherwise could be used. A gas - filled tube, therefore, can carry much higher current than a high -vacuum tube of corresponding dimensions. The vapor pressure, however, is sufficiently low so that the anode can withstand, when negative, the voltage for which the tube is designed. The construction of the thyratron is similar to that of the phanotron. In the thyratron, however, the addition of an electrode called a grid increases greatly the usefulness of the tube. Inasmuch as the action of the grid is quite different from that of the grid in the high -vacuum three -electrode tube, it is necessary to describe its action in detail. The grid, as employed in the thyratron, controls only the starting of the discharge. After starting, under usual operating conditions, it neither modulates, limits, nor extinguishes the arc. Herein lies the fundamental difference between the thyratron as ordinarily used, and the high -vacuum tube. In a gas tube, the positive ions neutralize the space charge with the result that a prohibitively high current would have to be supplied to the grid before it could gain control with anode current flowing. In order to enable the grid to act with practical amounts of current, the anode voltage must be reduced substantially to zero or made negative for a period long enough for the gas or vapor to become deionized. Once this deionization takes place the grid can resume control. In a high -vacuum tube, since this ionization is not present, the grid can control the flow of current. Any change in the grid voltage of a high -vacuum tube will cause a corresponding change in the current. If an alternating voltage is applied to the anode of the thyratron, the grid has an opportunity to regain control once each cycle and can delay the starting of the arc for as long a period during the subsequent positive half cycle as the grid voltage is sufficiently negative. This means that the grid can control the average current flowing through the tube and that this averaging can be made as fine-grained as desired by increasing the frequency of interruption. If the grid as well as the anode is supplied with alternating current, the phase relation between the grid and anode determines the amount of average current passing through the tube. Fig. 1 shows the wave forms occuring with a shift in phase between the grid and anode. Example A shows the wave forms with the tube in an almost nonconductive condition, while E illustrates rectification throughout the entire half wave. The other diagrams show several intermediate stages of grid control. ANODE VOLTAGE (A sr GRID VOLTAG CRITICA VOLTAGE LA, k,,,,,,, IC) (D) /3746. CE) K-9033592 Fig. 1-Control of Thyratron Anode Current by Variations in the Grid Voltage 1-10-45 The voltage conditions for starting the current depend largely upon the structural design of the tube. A tube may be designed so that within the normal anode voltage limits the current always starts at a negative grid voltage, always at a positive grid voltage, or at a negative voltage for high anode voltages and a postive voltage for low anode voltages. Negative -control tubes require relatively little grid power and are therefore suitable for use with high -impedance circuits. Positive -control tubes are useful in applications where it is desired that no current flow in the absence of grid excitation. The intermediate type of tube is often used in inverter circuits and is usually designed to ensure as rapid deionization as possible, as the time allowed for deionization in certain circuits is sometimes very short. ETI-1 1 6 PAGE 3 4-45 DEFINITIONS OF RATINGS The ratings of gas -discharge tubes are given in terms of fundamental conditions on the tube itself rather than in terms of any circuit constants. Values for a particular tube are given on the individual tube descriptive sheets, (i.e., in terms of actual anode voltage and current, grid voltage and current, etc.). The Maximum Peak Inverse Voltage is a rating which is common to both thyratrons and phanotrons. It is the highest instantaneous voltage that the tube will safely withstand in the direction opposite to that in which it is designed to pass current and depends upon operation within the specified temperature range and within the surge current rating. It should be emphasized that the maximum rating of the tube refers to the actual inverse voltage and not to the calculated values. A cathode-ray oscilloscope or a spark gap connected across the tube is useful in determining the actual peak inverse voltage. The Maximum Peak Forward Voltage is a rating which applies only to thyratrons. It is the maximum instantaneous voltage that can be held back by the action of a suitable grid voltage and for mercury-vapor tubes depends particularly upon operation within the maximum temperature specified. The Maximum Instantaneous Anode Current is the highest instantaneous current that a tube can safely conduct under normal operating conditions in the direction of normal current flow. The Maximum Surge Current rating is a measure of the ability of a tube to withstand extremely high transient currents ; it is also a measure of the stiffness of the anode circuit in which the tube will operate satisfactorily at rated temperature and with maximum peak inverse voltage applied. The Maximum Average Anode Current is a rating based on tube heating. It is the highest average current which can be carried continuously through the tube. The grid current ratings are given in terms of the Maximum Instantaneous Grid Current and the Maximum Average Grid Current; the integration period is the same as that for the anode current. In addition to the above ratings, there are a number of other tube characteristics. The Voltage Drop from anode to cathode is a characteristic which becomes important when the anode supply voltage is low, as it then becomes a large part of the working voltage. The typical voltage drop which may be encountered is included in the tube ratings, and the maximum is given in the Specifications. This in- cludes the effect of temperature change during tube life and variation between individual tubes. The Control Characteristic shows the relation between grid and anode voltage for the starting of a discharge, and gives the range of variations be- tween tubes held at a condensed -mercury tempera- ture of 40 C. In the case of gas tubes, temperature is not an important factor, The control character- istic is affected somewhat by the temperature, and this information is also available in the form of characteristic curves. The Ionization Time may be defined as the time required for conduction to occur when the tube is operated with ample anode voltage and with the grid or grids at a potential substantially more positive than required for discharge. The Deionizatoin Time is the time required under normal conditions to bring about the deioni- zation necessary to regain control. The time given is based on a condition of full maximum average anode current and condensed -mercury temperature of 40 C. Condensed -Mercury Temperature is the temperature which controls the mercury-vapor pressure and hence many of the tube characteristics. This is measured on the bulb just base, the point where the mercury vapor is condensing within the tube. Satisfactory tube operation de- pends upon operating within the specified tempera- ture limits. When the tube is being heated it must be remembered that the heating time specified on the Description and Rating sheets refers only to the cathode. Additional heating must be allowed to bring the condensed -mercury temperature within limits. CLASSES OF TUBES Thyratrons are built in both glass and metal for ease of installation and conservation of space. envelopes. The higher voltage tubes utilize glass Mercury tubes are available where temperature construction for ease of insulation. Tubes built for can easily be controlled. Tubes with insert -gas control of large amounts of power at lower voltages filling are available for those applications where a (as for motor control and welding applications) are wide range of ambient temperatures will be enof metal construction to withstand handling and countered. Where inert gas is used the tube charshock, and are adapted for panel -mounting, whereas acteristics vary only with pressure of the gas and smaller tubes are generally socket -mounted and are essentially independent of normal temperature may even have all electrodes connected at one end changes. APPLICATION CIRCUITS# The versatility of these gas -filled tubes gives plications is the control of the speed of d -c motors. them a wide field of application. One of their ap- One of the first motor speed -control applications #Circuits shown in ETI-116 are examples of possible tube applications and the description and illustration of them does not convey to the purchaser of tubes any license under patent rights of General Electric Company. was completed in 1929. Other trials followed and there is now a large demand for Thy-Mo-Trol (GE's trademark for motor control using electronic tubes) drives, by which d -c motors are operated from ETI-116 PAGE 4 4-45 APPLICATION CIRCUITS (CONT'D) constant potential a -c systems. These can provide speed control over ranges even larger than one hundred to one, operating at constant torque below basic speed by means of armature control and at constant horsepower above basic speed by means of field control. A circuit for such an application is shown in Fig. 2 below. Some of the uses to which such a circuit may be applied include the maintenance of the correct tension during the reeling of the wire output of wire -drawing machines, the correlation of the speeds of various sections of rubber process conveyors to maintain a given loop of rubber sheet between the conveyor sections. It may be used to vary over wide ranges the speed of d -c motors driving frequency changers which supply power to highspeed textile motors, and to maintain the speed of the motors within narrow limits at any given setting, in spite of wide load changes. Used in these and similar applications, the thyratron provides an efficient, dependable aid to modern industry. obtained from a tachometer and standard source of voltage. The use of gas -filled tubes for the control of power flow to resistance welders has revolutionized the fabrication of high -production units by accurate timing and uniform heating; the welding of high strength aluminum alloys has been made practical by the use of thyratron control. Welders so controlled vary in size from 3 to 5 kilovolt -amperes to as high as 2000 kilovolt -amperes. A typical welder control circuit is shown in Fig. 4 below. WELDING TRANSFORMER A- C 0.- INPUT '11F11111-0MITIRMSTinr. 1111.1). 00 THYRATRON P LOT GENERATOR D -C INPUT SOURCE OFA- CONSTANT VOLTAGE KENOTRON to K-9033570 Fig. 2-Electron Tube Motor Control Circuit 12-30-44 Another application is the thyratron motor control circuit illustrated in Fig. 3 below. This is another circuit arrangement which can be used to operate a motor at constant speed in spite of wide load changes. The error signal may be SHIELDED T S2 0000000000 GRID TRANSFORMER K-9033516 CONTROL SWITCH Fig. 4-Thyratron Welder -Control Circuit 11-2-44 One of the first large industrial applications of the thyratron tube was the light -draining control board of the Chicago Civic Opera. This was followed by that of the Radio City Music Hall where 313 lighting circuits were controlled electronically. Many subsequent applications have proved the greater smoothness, efficiency, and flexibility of tube control, particularly with large numbers of circuits, than can be obtained with the conventional resistor board. A circuit for illumination control is illustrated in Fig. 5. The same basic scheme, using a saturable reactor may be applied to electric furnaces where thyratron rectifiers provide precision temperature control. A -C SOURCE MAXI MUM ADJUSTMENT -cTN-TRCEETRANSFORMER ZERO -ADJUSTMENT THYRATRON LAMP LOAD POTENT10METER SHIELDED K-9033517 11-2-44 Fig. 3-Motor Control Circuit (*The Field of the D -c Motor is Supplied from a Separate D -c Source) SATURABLE -CORE REACTOR K-9033503 10-14.44 Fig. 5-Feed-back Circuit Used in Illumination Control Fig. 5-Henney, Electron Tubes in Industry, P-250; McGraw-Hill Book Co., Inc., 1937 Potentiometers are provided to adjust circuits properly when the intensity control is set at maximum and at zero. These adjustments are made easily at the time of installation and are fixed thereafter. The feed -back circuit compares the voltage on the lamps with the voltage from the intensity control and acts on the grid of the controlled rectifier to hold the lamp voltage constant for any one setting of the intensity control. Gas -filled tubes may be used in inverter circuits for the conversion of d -c to a -c power, using the deionization time of the tube for commutation. Three typical inverter circuits are shown in Figs. 6, 7, and 8. K-9033511 10-14-44 Fig. 6-Fundamental Single -Tube Inverter Circuit GRID EXCITATION to THYRATRON LOAD ET1-116 PAGE 5 4-45 K-9033510 Fig. 9-Time-Delay Circuit 10-14-44 Another use of the thyratron is in temperature control applications. A circuit for high -temperature control is shown in Fig. 10 below. This circuit is generally applicable at temperatures for which a resistance thermometer may be used to form one arm of the a -c Wheatstone bridge. Variation of resistance of any arm of the bridge controls the normal temperature which is obtained. The thyratron is used to control the operation of current contactors when the heater current is extremely high. FURNACE -1 RESISTANCE THERMOMETER D- C SUP PLY K-9033586 Fig. 7-A Series Connection of Thyratrons for Inverter Operation A -C OUTPUT 1-9-45 = THYRATRON D -C INPUT T1 Cs THYRATRON K-9033512 10-14-44 Fig. 8-Self-excited Parallel -type Inverter Circuit The time -delay circuit shown in Fig. 9 may be used for timing purposes in switching sequences for delayed applications of power, for printing presses, and for welding. Fig. 6-Henney, Electron Tubes in Industry, P-232; McGraw-Hill Book Co., Inc., 1937 Figs. 7,8,10 and 12-Hull, A. W., General Electric Review, Vol. 32, No. 7; July 1929. K-9033563 Fig. 10-High-temperature Control Circuit 1-1-45 The thyratron may be utilized in relaxation oscillator circuits to provide a linear time base for cathode-ray oscilloscopes. A relaxation -oscillator circuit is shown in Fig. 11 below in which R, and C1 determine the frequency of operation. SYNCHRONIZING VOLTAGE IF USED OUTPUT VOLTAGE K-9033506 10-14-44 Fig. 11-Relaxation Oscillator Circuit, for Time Base Figs. 9 and 11-Maddock, A. J., Journal of Scientific Instruments, March 1943. ETI- 1 16 PAGE 6 4-45 APPLICATION CIRCUITS (CONT'D) Thyratrons used with phototubes in circuits, POWER such as that shown in Fig. 12 provide a fast, SUPPLY trouble -free, automatic means for counting articles or persons, or for operating doors. It is useful in many switching operations. The turning on of RECTIFIED OUTPUT lights, when daylight falls below a certain level of intensity is an example. K-9033502 10-14-44 Fig. 14-Variable Resistance Method of Control Producing Variation in Phase Between Resistance and Capacity Voltages K-9033509 10-14-44 Fig. 12-Photoelectric Relay with a Thyratron (On -off Control Circuit) Thyratrons are used to control the duration and amount of current passing for welding, X-ray work, or spectographic analysis using spark electrodes. r A circuit for such applications is shown in Fig. 13. A -C eso *---0040901)(1. T I SPARK WELDING GAP THYRATRON JAWS Since thyratrons are essentially rectifiers, one of their main uses is in rectifier circuits providing controlled d -c from an a -c source. Two circuits that may be used for power supply applications are shown in Figs. 14 and 15. Fig. 14 shows an arrangement designed to supply d -c power from an a -c source while Fig. 15 shows a means of supplying a load with variable a -c power from an a -c source. K-9033565 1-1-45 Fig. 15-Power Supply Circuit Using Thyratrons (Supplying Variable A -c Power from an A -c Source) THYRATRON rPHASE SHIFTING OR TIMING CIRCUIT K-9033524 Fig. 13-Impedance Control of Alternating Current In general, applications of these tubes can be used to provide faster operation, reduced maintenance and more precise control than can be accom- plished by other methods. The automatic operation, amplification of power, quiet operation, flexibility, 11-45 and saving of space, are additional features valuable for many industrial applications. CIRCUIT DESIGN Tubes are selected for these applications by con- should be chosen so that the grid current will be sideration of the ratings, including peak and average small and cause negligible drop in the supply. currents to be conducted, and peak inverse and Ambient temperatures should be considered and forward voltages to be applied. mercury tubes used only where the condensed If very high -impedance grid -supply voltage is mercury can be held at temperatures above + 40 C. to be used, a tube of shielded -grid construction CIRC UITS The circuits illustrated are examples of types that may be used in some of the applications discussed in this article. It is impossible to illustrate in any discussion reasonably brief even a fraction of the circuits in which these tubes may be used for specific applications. Those illustrated show a few binations of these for the particular requirements of the task the tubes may be called upon to perform. When a tube has been chosen for the application, the Specifications should be consulted to determine the limits of operation. The remainder of the circuit constants, voltages, and currents may then be of the basic circuits for some of the major applica- checked to assure satisfactory operation of all tubes tions. Many of the others are modifications or corn - within the specified limits. Fig. 13-Griffith, R. C., General Electric Review, Vol. 33, No. 9, Sept. 1930. Fig. 14-Henney, Electron Tubes in Industry, P-798; McGraw-Hill Book Co., Inc., 1937 INSTALLATION ETI-116 PAGE 7 4-45 Mechanical Thyratrons should be mounted in sockets or supports of good quality with connections of sufficient current -carrying capacity. A shock absorbing mounting must be used if the tube is to be subjected to excessive vibration or sudden shock. Electrical The cathode should be operated preferably from an a -c source. If alternating current is not available, a d -c source may be used. The cathode must assume operating temperature before electron current is drawn. The delay may be accomplished either by manual or automatic control of the anode or grid circuit. The time required for the cathode to come up to normal operating temperature is included under Technical Information. In the case of mercury -filled tubes, it is also necessary to bring the condensed -mercury temperature to the minimum operating value. Thermal When a mercury-vapor thyratron tube is first placed in operation, it is necessary to distribute the mercury properly before anode voltage is applied. This is usually accomplished by applying filament voltage to distill the mercury into the cooling chamber of the tube. The location of the cooling chamber is indicated on the outline drawing by the words "controlling mercury temperature." The design of equipment should allow the tube to operate within the condensed -mercury temperature limits over the range of ambient temperatures to be encountered. OPER ATION Four of the fundamental limits on the operation of thyratron tubes are the maximum peak inverse anode voltage, maximum peak forward anode voltage, maximum instantaneous anode current, and the maximum average anode current. These ratings were previously defined under "Definitions of Ratings." Cathode Circuit The cathode voltage should not deviate from the rated value by more than five per cent and the temperature before any other potential is applied. Filament voltage should be set so that voltage fluctuations give an average value equal to the rated filament voltage. Too low filament voltage may result in very short life or perhaps immediate failure due to loss of emission. Too high voltage will shorten the life of the cathode somewhat. Anode Circuit Maximum Peak Inverse Voltage-The relations between the peak inverse voltage, the direct voltage, and the rms value of alternating voltage depend largely upon the individual characteristics of the rectifier circuit and the power supply. The presence of line surges, keying surges, or any other transient or wave -form distortion may raise the actual peak voltage to a value which is higher than that calculated from the sine -wave voltages in the trans- former. Maximum Instantaneous Anode Current-The ability of a given tube to conduct this instan- taneous current without excessive voltage drop will depend upon cathode heating and the condition of the emitting surface. Maximum Surge Current-The rating is intended to form a basis for set design in limiting the ab- normal currents that occur during short-circuit conditions. It does not mean that the tube can be subjected to repeated short circuits without the probability of a corresponding reduction in life and the possibility of a failure. Maximum Average Anode Current In the case of a rapidly repeating duty cycle, this current may be measured on a d -c meter. Otherwise, it is nec- essary to calculate the average current over a period not to exceed a definite interval of time which is specified for each design of tube. For example, in a two -tube, 60 -cycle rectifier feeding into an inductive load (so that the tube conducts approximately half the time with a square wave) a tube with a maximum instantaneous anode current of 15 amperes, a maximum average current of 2.5 amperes, and an integration period of 15 seconds, can carry a series of 15 -ampere, 180 -degree blocks of current (half the time) for 5 seconds out of each 15 seconds, or a series of 7.5 -ampere, 180 -degree blocks of current (half the time) for 10 seconds out of each 15 seconds. Ionization Time This time varies with the wave form and amplitude of the impressed grid voltage. When the tube is operated under normal conditions, this time will not exceed the value given. Deionization Time This time is dependent on temperature, grid voltage, anode voltage, and instantaneous anode current. The value under normal conditions is included under Technical In- formation. The ionization and deionization times place a limitation on the maximum frequency at which the tubes can operate for any set of conditions. The Voltage Drop Where uninterrupted service is desired, the tube voltage drop should be checked at regular intervals by means of a cathode-ray oscilloscope or other suitable means. This drop is one criterion of tube condition, and its rapid rise from one test to the next will anticipate failure. ETI- 1 1 6 PAGE 8 4-45 Grid Circuit Approximate Control Characteristic Since the control characteristic varies with individual tubes, only average curves can be given. In the case of mercury-vapor tubes, variation is also experienced as a function of temperature. For these reasons, and because of variable grid currents, it is always advisable in practice to supply the grid with several times the voltage apparently necessary. Whenever possible, a phase shift or some other method of control which does not give an objectionable error due to these changes in characteristic should be used. This method permits fixing the time of starting of anode current anywhere in the positive half cycle of anode voltage. The average value of anode current is thereby completely controlled for variations from zero to maximum. For a strictly on -and -off control, the magnitude method is satisfactory provided ample voltages are used on the grids. With the phase -shift method, more uniform control is obtainable since an excess of these voltages may be used at all times. This method eliminates the effects of grid currents, variation in grid supply voltages and variation in starting characteristic. Note: The ratings and characteristics of a particular tube are given under Technical Information on the Description and Rating sheet for that tube. Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 1-46 (3M) Filing No. 8850 THYRATRONS Recommended Types and Selection Chart Peak Cathode Current in Amperes* Average Peak Fault Max Peak Inverse Voltage At 100 Volts Control Characteristicst Intermediate Voltage At 1000 Volts Cathode Volts Amperes Max Temperature Range 0.5 2.0 40 5000 -1.0 1.0 1000 .... 25,000 .... 120 1250 -2.5 1.5 6.0 55 1250 -2.5 -1.6 2.5 15 200 30 250 1000 +1.0 1500 -1.0 3.2 40 560 1500 0 2000 +2.0 77 400 10,000 +1.0 6.4 80 112) 1500 0 -7.0 2.5 5.0 .... 6.3 30.0 -5.0 2.5 7.0 -5.5 2.5 7.0 -6.5 5.0 4.5 -9.0 5.0 4.5 -5.0 2.5 9.0 -8.0 2.5 12.0 -9.0 5.0 10.0 -9.) 5.0 10.0 -6.0 2.5 21.0 +40 to +80 -50 to +75 -40 to +80 -40 to +80 +40 to +80 +40 to +80 -40 to +80 -55 to +70 +30 to +95 +25 to +95 -55 to +70 75 1500 10,000 .... 12.5 100 1500 3000 .... 18.0 160 2000 1500 .... +1.0@l000V -6.0@8000V 0@200V 0 @300V .... 5.0 20.0 -10.0 5.0 19.0 -3.0 2.5 34.0 +40 to +65 +40 to +80 -55 to +70 * Values listed are maximum va ues and do not apply for all types of application. Refer to data sheet for detailed information. f Grid characteristic ratings are bogey values. The screen -grid voltage is zero for four -element tubes. 1 Designed for pulse switching applications. § Designed for a high commutation factor. Tubes identical except for bases. 11 ET -T1469 Page 1 1 2-57 Tube Type GL -5557 GL -5948$ GL -3C23 GL -393-A GL -5559 GL -5560 GI -6011/710 GL -5544§ FG-172 FG-105 GL -6807§1I GL -6808 GL -6809 GL -5830 GL -414 GL -5855§ ELECTRONIC COMPONENTS DIVISION GENERAL ELECTRIC Schenectady 5, N. Y. DESCRIPTION AND RATING GL -3C23 ET -T1475 PAGE 1 1 1-57 THYRATRON TRIODE TYPE NEGATIVE CONTROL CHARACTERISTIC INERT -GAS AND MERCURY-VAPOR The GL -3C23 is a 3 -electrode mercury-vapor and within wide temperature limits. The construction inert -gas -filled thyratron with negative control however, enables the tube to withstand higher characteristic. The mixture of inert -gas and mer- voltages than many gas -filled types. cury-vapor provides constancy of characteristic TECHNICAL INFORMATION GENERAL Electrical Minimum Bogey Cathode-Filamentary @Filament Voltage 2.37 2.50 ®Filament Current at 2.50 Volts 6.25 7.0 Heating Time Required 15 Anode -to -Control -Grid Capacitance 1.8 Deionization Time, approximate 1000 Ionization Time, approximate 10 Anode Voltage Drop . 15 Mechanical Type of Cooling-Convection O Equilibrium Condensed -Mercury Temperature Rise Above Ambient, typical At Full Load At No Load Mounting Position-Vertical, Base Down Net Weight, maximum Maximum 2.62 Volts .7...7.5 Amperes Seconds Microseconds Microseconds Volts 22 C 18 C 3 Ounces GENERAL ELECTRIC Supersedes ETI-1175 dated 4-51 GL -3C23 ET -T1475 PAGE 2 11-57 TECHNICAL INFORMATION (CONT'D) MAXIMUM RATINGS, Absolute Values Maximum Peak Anode Voltage Inverse Forward Condensed -Mercury Temperature Limits* 200 1250 Volts 200 1250 Volts -40 to +100 -40 to +80 C Maximum Cathode Current Peak . Average 0 Maximum Averaging Time Fault 6.0 6.0 Amperes 1.5 1.5 Amperes 5 5 Seconds 120 120 Amperes Maximum Duration 0.1 0.1 Seconds Maximum Negative Control -Grid Voltage Before Conduction During Conduction 500 500 Volts 10 10 Volts Maximum Positive Control -Grid Current Average, averaging time-one cycle Maximum Frequency 0.010 400 0.010 Amperes 400 Cycles per Second * The tube may be started and satisfactory operation will result between -40 C and +80 C. For maximum life the condensed -mercury temperature after warm-up should be as specified. O Denotes an addition. ® Denotes a change. TYPICAL CONTROL CHARACTERISTICS / SHADED AREA SHOWS RANGE OF CHARACTERISTIC 1200 1100 1000 900 800 700 600 500 400 300 200 ,..)A. 6.4A A 100 COND. Hg TEMP =-40 TO+80 C - 0 -9 K-9033533 -8 -7 -6 -5 -4 -3 -2 -I DC GRID VOLTAGE AT START OF DISCHARGE IN VOLTS 0 11-24-44 2rI6" DIA. MAX. CAP CI -5 ANODE TERMINAL GL -3C23 ET -T1475 PAGE 3 1-57 6-I MAX. 54-+4I" BASE A4-10 GRID TERMINAL NO CONNECTION K-8639392-Outline revised. FILAMENT TERM IN ALS 11-26-57 ELECTRONIC COMPONENTS DIVISION GENERAL ELECTRIC Schenectady 5, N. Y. FG-27-A DESCRIPTION AND RATING ETI-119C PAGE 1 5-49 THYRATRON DESCRIPTION The FG-27-A is a negative -control mercuryvapor tube for use where it is desired to actuate It requires relatively little grid power and is suitable for use in relay circuits where current flow the tube with a change in negative grid voltage. is desired in the absence of grid excitation. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes Electrical Cathode-Filamentary type Filament voltage Filament current, approximate Filament heating time, typical Peak voltage drop, typical Approximate control characteristics Anode voltage 60 Grid voltage 0 Anode to grid capacitance, approximate Ionization time, approximate Deionization time, approximate 100 -2.25 3 5 0 volts 4 5 amperes 60 seconds 16 volts 1000 volts -8.0 volts 4.4 micromicrofarads 10 microseconds 1000 microseconds GENERAL ELECTRIC Supersedes ET1-119A dated 12-45 FG-27-A ETI-1 19C PAGE 2 5-49 TECHNICAL INFORMATION (CONT'D) Mechanical Net weight, approximate Shipping weight, approximate Mounting position MAXIMUM RATINGS 4 ounces 3 pounds vertical, base down Maximum peak anode voltage Inverse Forward 1000 volts 1000 volts Maximum negative grid voltage Before conduction . During conduction 500 volts 10 volts Maximum anode current Instantaneous, 25 cycles and above 10.0 amperes Instantaneous, below 25 cycles 5.0 amperes Average 2.5 amperes Surge, for design only 200 amperes Duration of surge current 0 1 second Maximum grid current Instantaneous 1.0 ampere Average Maximum time of averaging current 0 25 ampere 15 seconds Temperature limits, condensed mercury Recommended temperature, condensed mercury.+.4.+0 4to0+c80encetingtirgaraddee THYRATRON FG-27-A TYPICAL CONTROL CHARACTERISTICS SHADED AREA SHOWS RANGE OF CHARACTERISTICS CONDENSED MERCURY TEMPERATURE 40 C 1000 800 600 400 200 -14 -12 -10 -8 -6 -4 -2 D -C GRID VOLTAGE AT START OF DISCHARGE OF VOLTS K-8639303 0 7-29-43 A FG-27A RATE OF RISE OF CONDENSED MERCURY TEMPERATURE ABOVE AMBIENT FG-27-A ETI-119C PAGE 3 5-49 30 MMUIMMERNMEMMORMEEMMEM U MIMEMMIUMEMEMEMMEMEMMEMMOI MMMEONINMMUIMIMMEMMIONIMMEINEIMMMAE=M9E1M1I4U1M1MMoMnHiNmIaMmImLoImMmMiEmMmMaImNmIuMmEMmMomMmoomm w 11111,M1111911!"11111111111II111111111111111111111111 c z 25 1MWMI8IM1NIM1MI1MME1MM1MI=EMM1MM,OUM1MM1EN1MMI1EM1MME.NUNMUIMMKA1A1IM1N;1I1=M1M1ME1I11111N1MO1MM1MI1EI1MM1EM1ME1MM1I1EN1ME1MM1II1MN1MM1I1EN1MI11M1EM1EM1MM1M1E=1MM1ME1E1MM1E1MM1Om1MI1Ml1Ul1M u-) IIIIIIIIIIIIIIIIIIIIIII 1111 II MEM WM MU WM = w 20 = 1- 15 U B 10 w 0 Id 16111111 I I 1 1 1 1 11111 111 III 1 1111111" 5 N-21539ZA A New curve. 10 15 20 25 30 HEATING TIME IN MINUTES A FG-27-A TYPICAL CONTROL GRID CURRENT VS CONTROL GRID VOLTAGE DURING CONDUCTION E1=5.0 VOLTS A -C 1000 900 111 000 z 700 q5 600 500 8 O 400 X 300 200 100 K -69087-72A136 A New curve. 0 10010 8 -6 4 -2 0 2 4 6 D C CONTROL GRID VOLTAGE IN VOLTS 35 40 3-10-47 4-30-47 FG-27-A ETI-119C PAGE 4 5-49 OUTLINE THYRATRON FG-27A ANODE TERMINAL CI -5 .566" .007" DIA. 400" MIN. CONTROLLING MERCURY TEMP LEVEL BASE A4-10 7,'A4 5-49 (10M) Filing No. 8850 FILAMENT TERMINAL GRID a ANODE RETURN TERMINAL FILAMENT MIDTAP GRID TERMINAL K-4909071 MRevised outline Electronics Department 8-29-47 GENERAL ELECTRIC Schenectady, N. Y. 1000 900 800 700 GL-5728/FG-67 TYPICAL CONTROL GRID CURRENT VS. CONTROL GRID VOLTAGE DURING CONDUCTION Ef =5.0 VOLTS A -C GL -5728 /FG-67 ETI-123E PAGE 5 5-49 600 500 400 1111111011111111111 1111 300 0 1 I 200 11 III r 100 .I 111111111111111 Midi" iiiihibillifillPlig1111 -100 -5 -4 -2 -1 0 1 2 3 K -69087-72A139 D -C CONTROL GRID VOLTAGE IN VOLTS I 4 4-8-48 GL -5728 /FG-67 ETI-123B PAGE 6 5-49 OUTLINE GL -5728 /FG-67 THYRATRON 3" DIA. MAX 400' MIN. ZONE FOR CONDENSED MERCURY TEMPERATURE MEASUREMENT 4 - 6 4 4 BASE A4-10 5-49 (10M) Filing No. 8850 HEATER TERMINALS *411 piel -.011111wir CATHODE TERMINALS K-3846065 El Revised outline. GRID 8 ANODE RETURN TERMINAL GRID TERMINAL 4-18-48 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. FG-81-A DESCRIPTION AND RATING ETI.124B PAGE 1 10-49 THYRATRON DESCRIPTION The FG-81-A is an inert -gas -filled thyratron with a negative control characteristic. Although inert -gas -filled tubes can be operated in much lower ambient temperatures than mercury-vapor types, they are not rated at as high voltages as mercury tubes of comparable size. This tube is particularly adapted to applications where it is desired to have current flow in the absence of grid excitation, where constancy of characteristic is required with large variations in ambient temperature and where the tube is subjected to intermittent operation. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes 3 Electrical Cathode-Filamentary type Filament voltage Filament current, approx Filament heating time, typical Peak voltage drop, typical Approximate control characteristics 2 5 volts 5 0 amperes 5 seconds 16 volts Anode voltage Grid voltage Anode to grid capacitance, approx Ionization time, approx. 25 100 500 volts 0 -3.0 -5.25 volts 4 4 micromicrofarads 10 microseconds Deionization time, approx 1000 microseconds GENERAL ELECTRIC Supersedes EP -124A dated 12-45 FG-8 1 -A ETI.124B PAGE 2 10-49 TECHNICAL INFORMATION (CONT'D) Mechanical Net weight, approx Shipping weight, approx Mounting position MAXIMUM RATINGS Maximum peak anode voltage Inverse Forward Maximum negative grid voltage Before conduction During conduction Maximum anode current Instantaneous, 25 cycles and above Instantaneous, below 25 cycles Average Surge, for design only Duration of surge current Maximum grid current Instantaneous Average Maximum time of averaging current Ambient temperature limits 4 ounces 3 pounds vertical, base down 500 volts 500 volts 70 volts 10 volts 2 0 amperes 10 ampere 0 5 ampere 40 amperes 01 second 0 25 ampere 0 05 ampere 15 seconds -55 to +85 centigrade 500 400 300 200 100 -8 -7 K-6917474 -6 -5 -4 -3 -2 -1 D -C GRID VOLTAGE AT START OF DISCHARGE IN VOLTS THYRATRON FG-81-A TYPICAL CONTROL CHARACTERISTICS SHADED AREA SHOWS RANGE OF CHARACTERISTICS 0 8-20-43 FG-8 1 -A ETI-124B PAGE 3 10-49 240 220 200 180 160 MEE 1M I MillE111111=11111111 mini I C171.111111..11111111111,11111116-11 ' iins4.1M1il MU ., Arirrnarmorz:yzrmnin I I II 111111111111111ME ,E1114 I ME11:11-/ IIIIIME11111 :11.; -1 -ealkIIIIEIEI111 ,11.1.1 1 1I IMNE EVIIIIIMINIESIM4b/SESE.11110=MISEMEEEEEME11111111 M EMMEN II W'F 1I14.11111111k1.111411,TMSEI1S\A"Ii1*,AMI IIIEILMLA7MA1/aMl 1A1111,1..11IN -1. M 11. .111'.11T1PrirTISECIMEEIT I IS 111111.,1101011 1101.111111111111 NEVI I1 - .;;L:11:111:." MEMBI II iffEEEEE111111111111111NEEEMBEENSIENIIIIINE MMMMMMMMMM I It .r-AMmille,11S11111,lI/J El SAE% 1 M IUI 111111111111111E1111111111111 1 NEBB MEW 1 1 1 1 I....1 111111111111111111111111111111111111111 El EEZBEE1111111111111111 II IIEIl!I 1 ENE111111ENNIMIENEEEEEEI II I IMIE1111111111ENNEEEMEIRMENEMBEEMMISIEN ultMI 1 ra 1E11 KEENE: IN I 1E11 .1-I.1 11111111.11EIu.1 man IiIsIII poonm. MEUNIER III M El AIMEE MMMMM III 1111111111111EMEMEEEENEMEEEEE ERB 140 120 IIII 111111111111.11111111fEE I El ENEMIES II I 1 1111111111111 I 11111 1111111 IIIIIMINUM111111El II Mum1E1I Ell MI I 1 MluIlIl WM. 11111111N111111111111111M1111111111IMMEnn 11111E MEM 11111 11111 1oEn11I 111111111 ISEBBEEEEE 100 Minn 80 I1n1n 1 60 El INN IMRUENNEE I m U. I 40 EINEM: 11111111EMEEI ninninummum 1 1 ME 20 1117 Cu...... IEEEITIEMEIEMEE 0 MMMMMMM 71111:411ST N...E1NM711111.1111Send..110/ I IIMS1/EIN MM 11,1,1111111rIst:. -20 10 -8 -6 -4 n M RE 1E1 RI I 10111 1E11 IIIII MN NENE IEiInIll11I NINE 1Ell MEI MAU 1 mum... 1111111.11 imNmEMix I 1111 IMNIr 1IN1I1I I1 NM I /I/I I III ram .IAolwl/1an IIIIII/ MU 1 /EWA M MEV ' A .1 mug lee m WIEN 1 11 En 111111NWISinill MMMMMMMMMMM EMENEWEBI E11111S1 EEEINE ME REEMEMBER 11111111 -2 0 2 K -69086-72A140 (New drawing) D -C CONTROL GRID VOLTAGE IN VOLTS 4-29-47 FG-8 1 -A ETI-124B PAGE 4 10 49 400 MIN. OUTLINE FG-81 -A THYRATRON 007" DIA ANODE TERMINAL C I- 5 6a3H-+4I" BASE A4-IO 10.49 (10M) Filing No. 8850 FILAMENT TERMINALS GRID TERMINAL K-4373365 8-20-45 Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. FG-97 DESCRIPTION AND RATING ETI-126C PAGE 1 10-49 THYRATRON DESCRIPTION The FG-97 is a mercury-vapor double -grid thyratron designed for applications where the avail- to actuate the grid from a high -impedance source. It may be used in applications where the tube able grid power is very small and where it is desired temperature can be maintained relatively constant. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes Electrical Cathode-Filamentary type Filament voltage Filament current, approximate Filament heating time, typical Peak voltage drop, typical Approximate control characteristics Anode voltage 100 Shield -grid voltage 0 Control -grid voltage +0.5 Anode to control -grid capacitance, approximate Ionization time, approximate Deionization time, approximate 4 2 5 volts 5 0 amperes 5 seconds 16 volts 1000 volts 0 volt -13.0 volts 0 3 micromicrofarad 10 microseconds 1000 microseconds GENERAL ELECTRIC Supersedes ETI-1268 dated 10-47 FG-97 ETI-126C PAGE 2 10-49 TECHNICAL INFORMATION (CONT'D) Mechanical Net weight, approximate Shipping weight, approximate Operating position MAXIMUM RATINGS Maximum peak anode voltage Inverse Forward Maximum negative control -grid voltage Before conduction During conduction Maximum negative shield -grid voltage Before conduction During conduction Maximum anode current Instantaneous, 25 cycles and above Instantaneous, below 25 cycles Average . Surge, for design only Duration of surge current Maximum control -grid current Instantaneous. Average Maximum shield -grid current Instantaneous Average Maximum time of averaging current Temperature limits, condensed mercury Recommended temperature, condensed mercury 5 ounces 4 pounds vertical, base down 1000 volts 1000 volts 1000 volts 10 volts 300 volts 5 volts 2.0 amperes 1 0 ampere 0 5 ampere 40 amperes 0 1 second 0 25 ampere 0 05 ampere 0.25 ampere 0.05 ampere 15 seconds +40 to +80 centigrade 40 centigrade 8 00 60 0 40 0 -22 20 18 16 14 12 10 8 6 4 2 0 +2 +4 +6 K-8639317 D -C GRID VOLTAGE AT START OF DISCHARGE IN VOLTS THYRATRON FG-97 TYPICAL CONTROL CHARACTERISTICS SHADED AREA SHOWS RANGE OF CHARACTERISTICS CONDENSED MERCURY TEMPERATURE 40 C SHIELD GRID VOLTAGE ZERO 11-13-44 25 U Uw) CD 20 z RATE OF RISE OF CONDENSED MERCURY TEMPERATURE ABOVE AMBIENT E1=2.37 VOLTS FG-97 ETI-126C PAGE 3 10-49 w 15 Li 4.1 Li! I- 10 - U Li 2LLJ 5 z 0 U 0 5 10 15 20 25 30 35 HEATING TIME IN MINUTES N-21528ZA 240 220 200 180 160 140 120 100 80 60 40 20 0 20,5 4 -3 2 3 4 5 D C CONTROL GRID VOLTAGE IN VOLTS K -69087-72A142 (New drawing) 4-29-47 40 3-11-47 FG-97 ET1-126C PAGE 4 10-49 .400" MIN. OUTLINE FG-97 THYRATRON 1".- .566"--0D0IAA7." -ANODE TERMINAL 01-5 /CGIR-ID5 TERMINAL CONTROLLING MERCURY TEMPERATURE (FG- 97 ONLY ) BA SE A4-IO FILAMENT TERMINAL 5L- MAX. 8 N.C. 45°1' 5e K-4955906 N Revised drawing 10-49 (10M) Filing No. 8850 SHIELD GRID TERMINAL Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 11-12-47 FG-105 DESCRIPTION AND RATING ETI.128B PAGE 1 10-50 THYRATRON DESCRIPTION The FG-105 is a double -grid, mercury-vapor thy- tions where the grid is actuated from a high-impedratron. Double -grid tubes are designed for applica- ance source and where available grid power is small. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes Continuous Electrical Service Cathode-Indirectly heated type Voltage 5.0 Current, approximate 10.0 Heating time, typical. 5 Peak voltage drop, typical . 16 Approximate control characteristics Anode voltage . . . . 100 1000 Shield -grid voltage . Control -grid voltage 0 0 +1.0 -9.0 Anode -to -control grid capacitance, approximate .. . 0.3 Ionization time, approximate . . 10 Deionization time, approximate .. . 1000 .4 Intermittent Service 5.5 5.0 volts 11.0 10.0 amperes 5 5 minutes 16 16 volts 100 1000 volts 0 0 volt +1.0 -9.0 volts 0.3 0.3 micromicrofarad 10 10 microseconds 1000 1000 microseconds GENERAL ELECTRIC Supersedes ET1-128A dated 10-47 FG-105 EYI-128B PAGE 2 1 0-50 TECHNICAL INFORMATION (CONT'D) Mechanical Net weight, approximate Shipping weight, approximate Mounting position .22 ounces 7 pounds . vertical, base down MAXIMUM RATINGS Inverse...2500 Maximum peak anode voltage Continuous Service Forward 2500 Maximum negative control -grid voltage Intermittent* Service 750 10,000 volts 750 10,000 volts Before conduction . During conduction .1000 10 1000 10 1000 volts 10 volts Maximum negative shield -grid voltage Before conduction . 500 500 500 volts During conduction 10 10 10 volts Maximum anode current Instantaneous, 25 cycles and above .. ..... .. .. .. .... 40 77 16 amperes Instantaneous, below 25 cycles . 12.8 5.0 8.0 amperes Average 6.4 2.5 4.0 amperes Surge, for design only 400 400 160 amperes Duration of surge current 0.1 0.1 0.1 second Maximum control -grid current Instantaneous 1.0 1.0 1.0 ampere Average.. Maximum shield -grid current . 0.25 0.25 0.25 ampere Instantaneous. 2.0 2.0 2.0 amperes Average . Maximum time of averaging current Temperature limits, condensed mercury. . 0.50 0.50 0.50 ampere 15 5 15 seconds . +40 to +80 +30 to +95 +25 to +50 centigrade Recommended temperature, condensed mercury 40 40 40 centigrade *Interpolate linearly for values of anode current and temperature for operation at voltages between 2500 and 10,000 volts. FG-105 RATE OF RISE OF CONDENSED MERCURY TEMPERATURE ABOVE AMBIENT 030 czuj c 25 !m!!m!!r!iSnuEmEuPmmRbEroElu!m!!m!!oMrmpilzIaKoEmIpLliFnlighWilliiiitallinI z ear .... lipmproonnippplimming w "rx 20 111111101111111111111111pommollimioro ccW guj 15 II Impomuim bitummmompE inummognimpliono w >- 10 CL2 141 1111 1111111 111 1111111 011 1111 da 11J 5 immmineiribeigmumuminumunnummuquunnumunmuuniiiiiiiinnumg muldNEP " TEN: h Lai Ca 6U 0 5 nuNIFIMPIOLTE 10 15 20 25 .. ..Rhino 30 35 40 45 50 55 N21540ZA HEATING TIME IN MINUTES 3-11-47 FG-105 RANGE OF CHARACTERISTICS VS SHIELD -GRID VOLTAGE CONDENSED MERCURY TEMPERATURE 40 C Ec .45 V11. TS VOL5 I/ / 0000 00/ ci 0// .-30 -.0 -10 0 10 20 30 40 50 60 70. D-C CONTROL-GRID VOLTAGE AT START OF CONDUCTION IN VOLTS K-9033537 .FG-105 CATHODE REHEATING CURVE ANODE VOLTAGE =0 6-17-46 4 >"' FG-105 ETI.128B PAGE 3 10-50 THYRATRON FG-105 TYPICAL CONTROL CHARACTERISTICS SHADED AREA SHOWS RANGE OF CHARACTERISTICS CONDENSED HG TEMPERATURE 40C SHIELD -GRID VOLTAGE ZERO 2600 2400 2200 2000 1800 1600 1400 1200 1000 800 600 400 200 0 -28.26-24 22 -20 18 -16 -14 -12 -10 -8 -6 -4 2 0 .2 4.4 .6 48 D -C GRID VOLTAGE AT START OF DISCHARGE IN VOLTS K-8639321 .FG-105 AVERAGE GRID CHARACTERISTICS BEFORE ANODE CONDUCTION 7-27-45 FG-I0 VERAGF GRID DHA AC ER ST CS .0.6 BEFORF 421015E CON1)UITLIti +0 4 +0 2 NE 0 CONDUC NON STARTS -1.0 2 K -69087-72A268 New drawing 3 4 5 6 7 8 TIME OFF IN MINUTES 10 2-21-49 4 -I 6 -I 8 -1000 -800 -600 -400 -200 0 EA- C GRID VOLTAGE IN VOLTS 4200 K -69087-72A274 New drawing 3-21-49 FG- 1 05 ETI-128B PAGE 4 10-50 FG-105 TYPICAL VARIATION OF CONTROL CHARACTERISTIC WITH A HEATER PHASE VARIATION OF 180 DEGREES 2800 111111111 1111111111111111111111111111111111111111111111111111111111111111111111 il millimillimilimilloppgq111411111001411 1111111111111111111111111111111111111111111Eilliiiiiiiliiiill 2400 1 I L 2000 11111111111111111111111111111111111111111111111111111111111111111111 1600 1200 11 1111111111111111111111111111111111111111111111111111,11111!! 800 400 I1,111,11,1 1.11111,11,111,11,11.11,11il1l111111I101 1 -24 -20 K -69087-72A18 -16 -12 -8 -4 D -C GRID VOLTAGE IN VOLTS 5-13-46 *FG-105 TYPICAL CONTROL GRID CURREN VS. CONTROL GRID VOLTAGE DURING CONDUCTION Ee2 = 0, Ef =5.0 VOLTS A -C FG-105 ETI.1288 PAGE 5 1 0-50 1000 I on 900 11111111110111111111111111111111111)601 800 700 600 1111111111111111111011 500 11111.1111111111111llllllllllllllll 400 300 1111 1111111 200 111111111111111111111111111111111111 100 01111101,11 1 I 11111101: 111111111I"111M1I1111I11I1I111114 1111111111 -100 11111110111111111111111111111111111111111111111111 -200 -10 -8 -6 -4 -2 0 2 4 6 K -69087-72A144 New drawing D -C CONTROL GRID VOLTAGE IN VOLTS 4-29-47 FG-105 ETI-128B PAGE 6 10-50 .800,1±.007" .795" MIN. *OUTLINE FG-105 THYRATRON 311 DIA. MAX. -0. ANODE TERMINAL CAP NO. CI -15 CONTROL-GRID TERMINAL CAP NO. CI-. IS 2-vs 2 MAX 74 -4 ZONE FOR CONDENSED-MERCURY TEMPERATURE MEASUREMENT is 4 --I-- 1 -- 7 BASE NO. A4-18 HEATER TERMINAL CATHODE a HEATER TERMINAL SHIELD-GRID TERMINAL K-4955972 'Revised drawing 10-50 (11M) 45° CATHODE, GRIDSANODE RETURN TERMINAL 9-15-50 Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. DESCRIPTION AND RATING FG-172 -T151 PAGE 1 12-58 THYRATRON The FG-172 is a double -grid, mercury-vapor pedance source and where the available grid power thyratron. Double -grid tubes are designed for appli- is very small. The all -metal construction results cations where the grid is actuated from a high-im- in a sturdy tube for industrial applications. TECHNICAL INFORMATION GENERAL Number of Electrodes Electrical Cathode-Indirectly Heated Voltage . Current, approximate Heating Time, typical Peak Voltage Drop, typical Control Characteristics, approximate Anode Voltage Shield -Grid Voltage Control -Grid Voltage Anode to Grid Capacitance, approximate . Ionization Time, approximate . Deionization Time, approximate Continuous Service 5.0 10.0 5 16 100 2000 0 0 +1.0 -14 0.07 10 1000 4 Welder -Control Service 5.5 Volts 11.0 Amperes 5 Minutes 16 Volts 100 0 +1.0 2000 Volts 0 Volt -14 Volts 0.07 p.m.f 10 Microseconds 1000 Microseconds GENERAL tds ELECTRIC Supersedes ETI-130A dated 10-47 FG- 1 72 ET -T1513 PAGE 2 12-58 TECHNICAL INFORMATION (CONT'D) Mechanical Net Weight, approximate Shipping Weight, approximate Mounting Position-Vertical, Radiator Down 22 Ounces 7 Pounds MAXIMUM RATINGS Maximum Peak Anode Voltage Inverse Forward Maximum Negative Control -Grid Voltage Before Conduction During Conduction Maximum Negative Shield -Grid Voltage Before Conduction During Conduction Maximum Anode Current Instantaneous, 25 cycles and above . Instantaneous, below 25 cycles Average. Surge, for design only Maximum Duration Maximum Control -Grid Current Instantaneous Average Maximum Shield -Grid Current Instantaneous. Average. Maximum Averaging Time Temperature Limits, condensed mercury. Recommended Temperature, condensed mercury Continuous Service .2000 .2000 Welder -Control Service 750 Volts 750 Volts 1000 1000 Volts 10 10 Volts 300 300 Volts 5.0 5.0 Volts 40 77 Amperes 13.0 13.0 Amperes 6.4 2.5 Amperes 400 400 Amperes 0.1 0.1 Seconds 1.0 1.0 Ampere 0.25 0.25 Amperes 2.0 2.0 Amperes 0.50 0.50 Amperes 15 15 Seconds +40 to +80 +30 to +95 C 40 40 C TYPICAL CONTROL CHARACTERISTIC SHADED AREA SHOWS RANGE OF CHARACTERISTIC CONDENSED -MERCURY TEMP 40 C, SHIELD GRID CONNECTED TO CATHODE 24 22 20 8 16 14 12 10 8 6 4 2 0 +2 +4 +6 +8 DC CONTROL GRID VOLTAGE AT START OF DISCHARGE IN VOLTS K-8639645 6-27-44 rRATE OF RISE OF CONDENSED MERCURY TEMPERATURE ABOVE AMBIENT Ef =4.75 VOLTS 25 20 15 10 5 FG-172 ET -T1513 PAGE 3 12-58 0 5 N-21526ZA 10 15 20 25 30 35 HEATING TIME IN MINUTES 40 45 3-10-47 RANGE OF CHARACTERISTICS VS SHIELD -GRID VOLTAGES CONDENSED MERCURY TEMPERATURE 40C mar r MEE v°11111111111111112111111111011111131M11 MENA IIMIIIIOMNMIMEINIEINUSMEENTIMKIIENNI 111111WOU1 INIMMINIMIWASSE r111//I/Ii 111111111111111 111111121=11111/0211111M/WAMOIN EINIMPINIMMEINIMPAVOMINII 11111211111111MINIIIIIIIMMIMMI 111111MOINIMINIESPAINSIII 1111111112MUMENNEMINIMERINER 111111111MMERIMMEMBINIIMI 111111EMPINIMIMMIRTINIPMII IMIEFINMERWAUMINIMMIIIM 1m11m11a1s1k11a1m1EiMOEINWIP=AINWIMIANMNII 1111111111111111MEIMIMINEEMEN 30 -20 -10 0 10 20 30 40 50 60 70 DC CONTROL -GRID VOLTAGE AT START OF CONDUCTION IN VOLTS K-9186170 6.17-46 FG-172 ET -T1513 PAGE 4 12-58 TYPICAL VARIATION OF CONTROL CHARACTERISTIC WITH A HEATER PHASE VARIATION OF 180 DEGREES CONDENSED -MERCURY TEMPERATURE 40 C, El = 5.0 VOLTS, E02=0 2000 1800 1111111111110111111111111111111111111111 1600 1400 ilk 1111111"111111i111111111111111111111111111111111111111111111 12 00 1111111111 III 1111111111111111111111111111111111111111111 1m1u1l1l1.11.1.11.1.1.1.1.1..II.I..1.1.1.1.1.11.1.1.1.1.1.1.11.1.1.1.1.1m1.1.11.1.1.1.1.1.1.11.1.1.1.1.1.1.1.1 1000 ==IENM m0 MMM.IImIiMuMmEmIiMliMnEiMrMnEiNmWmEIRMUMSEEMrInNiMuEmMmoEmEiMiEmMmMiEmNmiITMhliimmimmEm MNiImpNlIiMMMIMIEIM.N 11111,1101M131111MMMIMMIMMI Elm MENEUMEMEMMEMENNEMENOMMEMENNEMEMENEMEN 800 MEEMNMNEEN MUMNMEONMEMMEENE MEEMNEEMMEEENMEEMEEMNEENMNEENNEEMWOEMNMEEMMEENNEEMMEENMEEMNEENMNEEMMEENNENMEEMNMEEMMEEMN EMENNIIIIImENEMENEMENEEEMENNEMEMEIMMEMEMENEMEMEMENNEMENEMEM EMENEMEMEMEMENNEMENWEEEMENNEMENEMENNEMENNEENE 600 M 1I 1Maia11l'1EME1NM1NNEMENEEM1MOMMENEME,1E1ME1EM1ENE11M1N 400 IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIMINIIIIIIIIIIIIIII 200 II II HEATER VOLTAGE OUT -OF -PHASE WITH ANODE VOLTAGE CHARACTERISTIC SAME WITH D -C ANODE VOLTAGE HEATER VOLTAGE IN -PHASE WITH ANODE -VOLTAGE 1111111111111111111 I 1111 -20 -18 -16 -14 -12 -10 -8 -6 -4 DC GRID VOLTAGE IN VOLTS K -69087-72A22 +2 5-13-46 FG- 1 72 ET -T1513 PAGE 5 12-58 If 13" 64 ±64 ANODE TERMINAL vt-e3-"+ 31i 32 I1-121MAX. Ill 5+ 11 '1 -3 2 A CONTROL GRID TERMINAL 10 II's-+3it2s u 1" 98 -+ 8 314 8 MAX. is 311+ 16 I" MAX. `4 5te 1" 5- ± 8 16 RADIATOR CONTROLLING MERCURY TEMPERATURE r- 1581 MAX. III V 11 + I6 16- 1-g S 5" 4" 5' + 16-32 1314. 16 - HEATER TERMINAL LETTER "F" 1200±10- 4 --83-113+12'. - II 1 -2- MAX. 4 gt4-40 THREAD THREADED I/4" MIN. FROM END 5otioo HEATER a CATHODE TERMINAL LETTER "K" 174 Am le 28±4 wipp-_,4*)20. -8 MAX. SHIELD GRID TERMINAL ON EITHER MOUNTING BRACKET K-5185243 3-22.48 ELECTRONIC COMPONENTS DIVISION GENERAL ELECTRIC Schenectady 5, N. Y. DESCRIPTION AND RATING GL -393-A ETT1476 PAGE 1 11-57 THYRATRON TRIODE TYPE NEGATIVE CONTROL CHARACTERISTIC INERT -GAS AND MERCURY-VAPOR The GL -393-A is a 3 -electrode mercury-vapor within wide temperature limits. The construction and inert -gas -filled thyratron with negative control however, enables the tube to withstand higher characteristic. The mixture of inert -gas and mer- voltages than many gas -filled types. cury-vapor provides constancy of characteristic TECHNICAL INFORMATION GENERAL Electrical Cathode-Filamentary Minimum Filament Voltage 2.37 Filament Current at 2.50 Volts 6.25 Heating Time Required 15 Anode -to -Control -Grid Capacitance Deionization Time, approximate Ionization Time, approximate Anode Voltage Drop Mechanical Type of Cooling-Convection Equilibrium Condensed -Mercury Temperature Rise Above Ambient, typical At Full Load At No Load Mounting Position-Vertical, Base Down Net Weight, maximum Bogey 2.50 7.0 1.8 1000 10 15 Maximum 2.62 Volts 7.75 Amperes . Seconds tta Microseconds Microseconds Volts 22 C 18 C 3 Ounces GENERAL ELECTRIC Supersedes ETI-132 dated 4-45 GL -393-A ET -T I 476 PAGE 2 11 -57 TECHNICAL INFORMATION (CONT'D) MAXIMUM RATINGS, Absolute Values Maximum Peak Anode Voltage Inverse 200 1250 Volts Forward Condensed -Mercury Temperature Limits* 200 1250 Volts -40 to +100 -40 to +80 C Maximum Cathode Current Peak 6.0 6.0 Amperes Average 1.5 1.5 Amperes Maximum Averaging Time 5 5 Seconds Fault 120 120 Amperes Maximum Duration 0.1 0.1 Seconds Maximum Negative Control -Grid Voltage Before Conduction 500 500 Volts During Conduction 10 10 Volts Maximum Positive Control -Grid Current Average, averaging time-one cycle 0 010 0.010 Amperes Maximum Frequency 400 400 Cycles per Second * The tube may be started and satisfactory operation will result between -40 C and +80 C. For maximum life the condensed mercury temperature after warm-up should be as specified. TYPICAL CONTROL CHARACTERISTICS SHADED AREA SHOWS RANGE OF CHARACTERISTIC 1200 1100 1000 900 800 v, 0 700 z 600 500 z 400 300 200 COND. H g TEMP = -40° TO + 80°C -IC -9 K-8277054 -8 -7 -6 -5 -4 -3 -2 DC GRID VOLTAGE AT START OF DISCHARGE IN VOLTS 100 0 9-26-44 15"+ 1" 16 -64 I" MAX A 9"MAXI.6DIA 16 F4- 406.. ANODE TERMINAL CAP C I- I .360'11-.005" DIA. GL -393-A ET -T1476 PAGE 3 11-57 6 I1+6--5116: BASE B7-12 r BASING DIAGRAM K -8271003 --Outline revised 8-17-51 ELECTRONIC COMPONENTS DIVISION GENERAL ELECTRIC Schenectady 5, N. Y. DESCRIPTION AND RATING GL -414 ET-Tl 509 PAGE 1 12-58 THYRATRON The GL -414 is a three -electrode, mercury-vapor, welder -control and grid -control -rectifier applicametal thyratron with negative control character- tions. istic. This tube is designed for industrial use in TECHNICAL INFORMATION GENERAL Electrical Heater Voltage. Heater Current at 5.0 Volts . Cathode Heating Time Required Anode -to -Control Grid Capacitance Control Grid -to -Cathode Capacitance Deionization Time, approximate Eb =120 v d -c; Ib =12.5 a d -c; Rg =1000 ohms Egg= -20 v d -c Eg= -1000 v d -c Ionization Time, approximate Eb =100 v; Ib =100 amperes E0=+30 v Anode Voltage Drop Critical Grid Current at EL, = 220 v a -c Minimum 4.75 10 Bogey 5.0 19.0 0.1 6.5 2200 900 8 20 Maximum 5.25 Volts 22.5 Volts ... Minutes Ailf miLf ... Microseconds ... Microseconds ... Microseconds ... Volts 12 Microamperes GENERAL ELECTRIC GL -414 ET -T1509 PAGE 2 12-58 TECHNICAL INFORMATION (CONT'D) Mechanical Type of Cooling-Convection Equilibrium Condensed -Mercury Temperature Rise above Ambient At Full Load, approximate. At No Load, approximate Mounting Position-Vertical, Radiator Down Net Weight, maximum MAXIMUM RATINGS, Absolute Values Maximum Peak Anode Voltage Inverse 3000 Forward 3000 Maximum Cathode Current Surge.....1500 Peak 100 Average 5 Maximum Averaging Time 30 Maximum Duration Maximum Negative Control -Grid Voltage Before Conduction During Conduction Maximum Positive Control -Grid Current Average Averaging Time Condensed -Mercury Temperature Limits 0.1 1000 10 1.0 1 +40 to +80 3000 CONTROL CHARACTERISTIC SHADED AREA SHOWS RANGE OF CHARACTERISTIC CONDENSED -MERCURY TEMPERATURE +40 TO +80 C E,=4.75-5.25 VOLTS 26 C 23 C 4 Pounds 2000 Volts 2000 Volts 100 Amperes 12.5 Amperes 30 Seconds 1500 Amperes 0.1 Second 1000 Volts 10 Volts 1.0 Amperes 1 Cycle +40 to +80 C 2000 1000 0 -30 K -69087-72A220 -26 -22 -18 -14 -10 -6 -2 0 DC CONTROL -GRID VOLTAGE AT START OF DISCHARGE IN VOLTS 6 10 4,6-48 2000 1800 1600 1400 1200 100 0 80 600 400 200 0 TYPICAL VARIATION OF CONTROL CHARACTERISTIC WITH A HEATER PHASE VARIATION OF 180 DEGREES CONDENSED -MERCURY TEMPERATURE +40 C, Ef =5.0 VOLTS HEATER VOLTAGE OUT OF PHASE WITH ANODE VOLTAGE CHARACTERISTICS SAME WITH DC ANODE VOLTAGE _HEATER VOLTAGE IN PHASE WITH ANODE VOLTAGE GL -414 ET -T1509 PAGE 3 12-58 -20 -18 -16 -14 -12 -10 -8 -6 -4 -2 K 59087-72A19 DC GRID VOLTAGE IN VOLTS 0 +2 +4 4-2-48 GL -414 ET -T1509 PAGE 4 12-58 RATE OF RISE OF CONDENSED -MERCURY TEMPERATURE ABOVE AMBIENT Er =4.75 VOLTS 30 .............. 25 ik= Mr MEI ' .. 20 15 10 :::::rnammenuammarma pam " 5 ............... ppomm.mommi mommonsomma 0 5 10 15 20 25 30 35 40 45 50 HEATING TIME IN MINUTES K -69087-72A215 TYPICAL GRID CURRENT BEFORE ANODE CONDUCTION Ef =5.0 VOLTS 0 --CONDUCTION STARTS 0.1 55 60 3-19-48 11::: imp Elm 0 LU ce LU mom MMERMINIIMMU smomm -0.1 :11 0 11. ce U -0 2 11 11111111 LU ce ce U.tammag u -0.3 GG m mummEm. mummammmummi. immommummemmiewonamm 0 :Mom Mamma . MEM.01,-111Nr." 0 -0 4 11 /1 nr &mr. 1 ... , 1 SSA -0 5 CG Cm -1000 K -59087-72A221 -800 -600 -400 -200 DC GRID VOLTAGE IN VOLTS 0 206 4-13-48 140 120 TYPICAL CONTROL -GRID CHARACTERISTICS DURING ANODE CONDUCTION Ef =5.0 VOLTS AC 100 mp 80 60 EMI 40 20 1111111111111110 0 -20 NOM -40 -60 ifs -80 101 -100 -120 WIM Eilloo NM: .11 -140 1 -160 -10 -8 K -69087.72A214 -6 -4 -2 DC CONTROL -GRID VOLTAGE IN VOLTS GL -4 1 4 ET-Tl 509 PAGE 5 12-58 4-13-48 GL -4 1 4 ET -T 1 509 PAGE 6 12-58 ENVELOPE IS AT CATHODE POTENTIAL 6 16 ANODE TERMINAL -2 7 8 1+12 I 2 32 §I MAX. GRID TERMINAL POSITION AT MFR. OPTION /f\-\, e. A 5" 15"± 16 1325"+-32 II if MAX' 7-5-8 + 32 .250" ± .010" AREA FOR CONDENSED -MERCURY TEMPERATURE MEASUREMENT, RADIATOR MAY BE AT HEATER POTENTIAL 9 2IN-+2I" MAX. SPACE 2-2 RESERVED FOR RADIATOR .25d.±.0101.k -t -4 MIN. 450±I 0" .11% 116 161 32 -16 5.. 16 16 GRID 2 8 16 HEATER & CATHODE TERMINAL LETTER "K" HEATER TERMINAL LETTER "F" N21531AZ SPACE RESERVED FOR RADIATOR ELECTRONIC COMPONENTS DIVISION GENERAL ELECTRIC Schenectady 5, N. Y. 8-16-48 GL -502-A DESCRIPTION AND RATING ETI.134C PAGE 1 10-49 DESCRIPTION The GL -502-A is a four -electrode inert -gas filled all -metal thyratron with negative control characteristics. Small in size, light in weight, and with a control characteristic independent of ambient temperature over a wide range, minus 55 to plus 90 C, the tube is designed particularly for those control applications where high peak and average currents and relatively high -frequency ratings rather than long life are desired. THYRATRON The metal envelope which eliminates the necessity for any external shielding together with the small size permits compact circuit design. Another feature of this tube is its high control sensitivity which is made possible by the low grid current. Since the grid -to -anode capacitance is only about two -tenths of a micromicrofarad, line -voltage surges have little effect on the GL -502-A. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Heater voltage Heater current at 6.3 volts Cathode heating time Anode -to -control -grid capacitance *Technical information completely revised. Minimum 5.7 10 Bogey 6.3 0.6 0.2 Maximum 7.0 0.66 volta amperes seconds uuf GENERAL ELECTRIC Supersedes ETI-134B dated 3-47 GL -5():1-J% En -134C PAGE 2 10-49 TECHNICAL INFORMATION (CONT'D) Electrical Data (Cont'd) Control -grid -to -cathode and shield -grid capacitance Deionization time, approximate Minimum II, =100 ma, R,.= 1000 Ecc= -250 v E = -15 v Ionization time, approximate Anode voltage drop Critical grid current, anode voltage = 460 RMS Ec=Cutoff Bogey 2.5 10 150 0.5 8 Maximum uuf microseconds microseconds microseconds volts 2 microamperes Mechanical Data Type of cooling-convection Mounting position-any Net weight, maximum 2 ounces MAXIMUM RATINGS, Absolute Values Maximum peak anode voltage Inverse Forward Maximum Cathode Current Peak Average Surge (maximum duration 0.1 second) Maximum averaging time Maximum negative control -grid voltage Before conduction During conduction Maximum positive control -grid current Average (averaging time, one cycle) Maximum negative shield -grid voltage Before conduction During conduction Maximum positive shield -grid current Average (averaging time, one cycle) Maximum heater -cathode voltage limits Ambient temperature limits 360 180 1.0 0.2 10 30 250 10 0.01 100 5 0.01 -100 to +25 -55 to +90 1300 volts 650 Volts 1.0 amperes 0.1 amperes 10 amperes 30 seconds 250 volts 10 volts 0.01 amperes 100 volts 5 volts 0.01 amperes -100 to +25 volts -55 to +90 C AGL-502A MAXIMUM GRID CHARACTERISTICS BEFORE ANODE CONDUCTION SHIELD GRID VOLTAGE = 0 VOLTS = 0-650 VOLTS D -C E, = 6.3 VOLTS 0 2 -3 -4 5 -250 K -69087-72A290 aNew drawing -200 -150 -100 -50 D- C CONTROL -GRID VOLTAGE IN VOLTS 0 5-4-49 A GL -502A TYPICAL CONTROL CHARACTERISTICS SHADED AREA SHOWS RANGE OF CHARACTERISTIC SHIELD GRID VOLTAGE = 0 600 500 O 400 5.1 V 200 100 K -69087-72A31 ANew drawing 9 -8 5 -1 +1 D -C CCNTRO1 GRID VOLTAGE AT START OF DISCHARGE IN VOLTS 5.4-49 GL -502A TYPICAL GRID CHARACTERISTICS DURING ANODE CONDUCTION SHIELD GRID VOLTAGE =0 E, = 6.3 VOLTS +1 U) 0 111 Lt -1 -J -2 3 6 4 (-) 0 5 -6 0 -7 b cp E Er C = Lao eon -80 -70 K -69087-72A50 URevised drawing. -60 -50 -40 -30 -10 -10 CONTROL -GRID VOLTAGE IN VOLTS GL -502-A ETI.134C PAGE 3 10-49 0 +10 5-4-49 GL -502-A ETI.134C PAGE 4 10-49 10-49 (10M) Filing No. 8850 2 -8 - MAX. OUTLINE GL -502-A THYRATRON Iu 3 MAX. ,31+ 711 32 IK 32 13" I" 32- 32 5111 16 CATHODE MAX. AND SHELL 8 1 NG SMALL WAFER OCTAL BASE B8 -2I HEATER 2 HEATER SHIELD GRID 6 CONTROL GRID 3 ANODE 4 NC BASING DIAGRAM BOTTOM VIEW N-21524AZ Revised drawing 2-2 8-4 9 Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. DESCRIPTION AND RATING GL -5557 ET -T1472 PAGE 1 1 1 -57 THYRATRON TRIODE TYPE MERCURY-VAPOR NEGATIVE CONTROL CHARACTERISTIC The GL -5557 is a three -electrode mercury-vapor thyratron with negative control characteristic. This tube is designed for relay or control circuits where relatively little grid power is available. GENERAL TECHNICAL INFORMATION Electrical Cathode-Filamentary Filament Voltage Filament Current Heating Time Anode -to -Control -Grid Capacitance, typical Control -Grid -to -Cathode Capacitance, typical Deionization Time, approximate Ionization Time, approximate Anode Voltage Drop, typical Minimum 2 38 4 6 5 0 Bogey 2.5 5.0 2.5 7.0 1000 10 16 Mechanical Type of Cooling-Convection Mounting Position-Vertical, Base Down Net Weight, maximum Maximum 2.62 Volts 5.4 Amperes Seconds Auf Microseconds Microseconds Volts 3.5 Ounces GENERAL ELECTRIC Supersedes ET1-718D dated 9-51 GL -5557 ET -T1472 PAGE 2 11-57 TECHNICAL INFORMATION (CONT'D) MAXIMUM RATINGS Maximum Peak Anode Voltage Inverse Forward Maximum Cathode Current Peak Average Maximum Averaging Time Fault Maximum Duration Maximum Negative Control -Grid Voltage Before Conduction During Conduction Maximum Positive Control -Grid Current Anode Positive Maximum Frequency Condensed -Mercury Temperature Limits.. Denotes an addition. 1250 1250 5000 10,000 Volts 2500 5000 Volts 3.0 2.0 1.0 Amperes 1.0 0.5 0.25 Amperes 15 15 15 Seconds 40 4d 40 Amperes 0.1 0.1 0.1 Seconds 500 500 500 Volts 10 10 10 Volts 0.05 0.05 0.05 Amperes 150 150 150 Cycles per Second +40 to +90 +40 to +80 +40 to +60 C 2600 TYPICAL CONTROL CHARACTERISTIC SHADED AREA SHOWS RANGE OF CHARACTERISTICS CONDENSED MERCURY TEMPERATURE 40 C-80 C Ef=2.37 TO 2.63 VOLTS 240v 2200 2000 1800 1600 I 400 I 200 1000 800 600 400 200 -20 K -69087-72A362 -18 - I 6 -14 -12 -10 -8 -6 -4 -2 DC GRID VOLTAGE AT START OF DISCHARGE IN VOLTS 0 1-3-51 GL -5557 ET -T1472 RATE OF RISE OF CONDENSED MERCURY TEMPERATURE ABOVE AMBIENT PAGE 3 1 1 -57 Ef = 2.37 VOLTS 25 """--""""us noraurnonwrinuonmuunumnnplaipomminmimimemsusuuamirpmupmulemisnimugmrpaimpmmupi oHiind """r 20 Mmmili°MPmIoMmMighUlrMe UPPULMPOURTffHibILlIiTiIiMffIiIliMmIIMiImNEWmIMuMmIMMmINIUuMmINMinM"N 1111101111111111 1111111111MPIIIIMIMMIMIIMPIIII 15 IIIMERINSILEIMEMMIEMPINEMINI 10 11001111011101101111101111. primillsoll 1111111 5 N-21528ZA 10 15 20 25 30 HEATING TIME IN MINUTES TYPICAL CONTROL GRID CURRENT VS. CONTROL GRID VOLTAGE DURING CONDUCTION Ef = 2 5 VOLTS AC 35 40 3-11-47 290 220 200 180 160 140 120 100 eo 60 40 20 .20 0 .2 6 4 2 0 2 DC CONTROL GRID VOLTAGE IN VOLTS K -69087-72A135 4-29.47 GL -5557 ET -T1472 PAGE 4 11-57 400n MIN. -.'"----'-'''1--.56611.00711 DIA ANODE TERMINAL C1-5 4 CONTROLLING MERCURY-TEMP. LEVEL 6 -I8M i" 57i-4 BASE A4-10 FILAMENT TERMINALS K-4373365-Outline revised GRID TERMINAL 6-30-511 ELECTRONIC COMPONENTS DIVISION GENERAL ELECTRIC Schenectady 5, N. Y. GL-5559/FG-57 DESCRIPTION AND RATING ETI.122C PAGE 1 10-49 THYRATRON DESCRIPTION The GL-5559/FG-57 is a negative -control mer- It requires relatively little grid power and is suitcury-vapor tube for use where it is desired to actu- able for use in relay circuits where current flow is ate the tube with a change in negative grid voltage. desired in the absence of grid excitation. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Heater voltage Heater current Cathode heating time required Anode -to -control -grid capacitance, typical Control -grid -to -cathode capacitance, typical . . Deionization time, approximate . Ionization time, approximate Anode voltage drop, typical Approximate control characteristics Anode voltage Control -grid voltage Minimum 4.75 300 60 0 Bogey 5.0 4.5 2.5 10 1000 10 16 100 -1.75 Maximum 5.25 4.9 volts amperes seconds uuf uuf microseconds microseconds volts 1000 volts -6.5 volts GENERAL ELECTRIC Supersedes ETI-1228 dated 10-47 GL-5559/FG-57 ETI-122C PAGE 2 10-49 TECHNICAL INFORMATION (CONT'D) Mechanical Data Type of Cooling-Convection Mounting position-vertical, base down Net weight, maximum 4 5 ounces MAXIMUM RATINGS, Absolute Values Maximum peak anode voltage Inverse Forward Maximum cathode current Peak Average Surge (maximum duration 0.1 second) Maximum averaging time Maximum negative control -grid voltage Before conduction During conduction Maximum positive control -grid current Anode positive Maximum frequency Condensed -mercury temperature limits 1000 volts 1000 volts 15 amperes 2 5 amperes 200 amperes 15 seconds 500 volts 10 volts 0 25 ampere 150 cycles per second +40 to +80 THYRATRON GL-5559/FG-57 TYPICAL CONTROL CHARACTERISTICS SHADED AREA SHOWS RANGE OF CHARACTERISTICS CONDENSED MERCURY TEMPERATURE 40 C / 1000 800 600 400 200 0 -12 -10 -8 -6 -4 -2 D -C GRID VOLTAGE AT START OF DISCHARGE IN VOLTS K-8639304 8-20-45 GL-5559/FG-57 GL-5559/FG-57 ETI-122C PAGE 3 10-49 TYPICAL VARIATION OF CONTROL CHARACTERISTIC WITH A HEATER PHASE VARIATION OF 180 DEGREES CONDENSED -MERCURY TEMPERATURE 40 C E1=5.0 VOLTS 1000 MI MMMMMMMM EMEMEMEI REEMEMEMEME MMMMMMMMMM MEM MMMMMMMMMMMMMM MEM MMMMM EEMINEW rum: mm 800 1 m MMMMMMMMMMMMMMM mmommommi 1 LI L. 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MMMMM_M__m.m1oomnmeMmMmMeAmpMumMmEmNoEmMmoMmMmoMMMMMMMMMMEMnEMoEoMnEoMnEomommmmoEoMnnMnEoMoEmMmMoEnMoEmE MEMESEUNEPMEPEEMP MMMM INEEMEMEMEEMEMEMEMEMEME MMM ENISIEPi gopongonom mon MM . loonmosanmnorm 14MANIUME MMMMMM *NOM MMMMMMMMM EMMEN MMMMMM MEP"timE MMMMMMMMMM MM .--.-..-0011 IMEMEEE MMMMMMM EMMEN MMMMMMM MEMEEEMMEEMMENMEMMEMEESE NEMEEEEMEREMUSUMMUMMEEESU MMMMMMMMMMMM NEE SEEMEIMEESEMEEMMEMEMENEME MMMMM E MMMMM MEME MMMMMMM MIMI EMEMEMEE MMMMMM EMMEN MMMMMM EE MMMMM M 10 8 -6 -4 -2 0 2 4 6 K -69087-72A138 New drawing D -C CONTROL GRID VOLTAGE IN VOLTS 4-29-47 GL -5559 /FG-57 En -122C PAGE 6 10-49 OUTLINE GL-5559/FG-57 THYRATRON 400" MIN. .566".00711DIA. ANODE TERMINAL C 1-5 3"DIA MAX. 711+ , e CONTROLLING LEVEL BASE A 4-10 HEATER TERMINAL CATHODE TERMINAL K-4373343 ERevised drawing a GRID ANODE RETURN TERMINAL GRID TERMINAL 8-29-47 10-49 (10M) Filing No. 8850 Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL-5560/FG-95 DESCRIPTION AND RATING ETI-125C PAGE 1 1 0 49 THYRATRON DESCRIPTION The GL-5560/FG-95 is a four -electrode mercury- the available grid power is very small and where it vapor thyratron with negative control character- is desired to actuate the grid from a high -impedance istic. This tube is designed for applications where source. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Heater voltage Heater current Cathode heating time required Anode -to -control -grid capacitance, typical Control -grid -to -cathode capacitance, typical . . Deionization time, approximate Ionization time, approximate Anode voltage drop, typical Approximate control characteristics Anode voltage Shield -grid voltage Control -grid voltage Minimum 4.75 300 100 0 +1.0 Bogey 5.0 4.5 0.2 4.4 1000 10 16 1000 0 -9.0 Maximum 5.25 4.9 volts amperes seconds uuf uuf microseconds microseconds volts volts volts volts GENERAL ELECTRIC Supersedes ETI-125B dated 10-47 GL -5560 /FG-95 ETI-125C PAGE 2 10-49 TECHNICAL INFORMATION (CONT'D) Mechanical Data Type of cooling-convection Mounting position-vertical, base down Net weight, maximum 6.5 ounces MAXIMUM RATINGS, ABSOLUTE VALUES Maximum peak anode voltage Inverse Forward Maximum cathode current Peak Average Surge (maximum duration 0.1 seconds) Maximum averaging time Maximum negative control -grid voltage Before conduction During conduction Maximum positive control -grid current Anode positive Maximum negative shield -grid voltage Before conduction During conduction Maximum positive shield -grid current Andoe positive Maximum frequency Condensed -mercury temperature limits * These ratings apply with Heater Voltage 5.5 1000 volts 1000 volts *30 15 amperes *0.5 2.5 amperes 200 amperes 15 seconds 1000 volts 10 volts 0 25 amperes 300 volts 5 volts 0 25 amperes 150 cycles per:second +40 to +80 C .5(70 volts, only when the 5560 is used for ignitor firing. THYRATRON GL-5560/FG-95 TYPICAL CONTROL CHARACTERISTICS SHADED AREA SHOWS RANGE OF CHARACTERISTICS CONDENSED MERCURY TEMPERATURE 40 C SHIELD -GRID VOLTAGE ZERO 1000 800 600 400 0 -14 -12 -10 -8 -6 -4 -2 -0 +2 +4 +6 +8 D -C GRID VOLTAGE AT START OF DISCHARGE IN VOLTS K-8639318 9-22-43 GL -5560 /FG-95 ETI-125C PACE 4 10-49 A GL-5560/FG-95 CATHODE REHEATING CURVE ANODE VOLTAGE = 0 0 20 K -69087-72A184 ANew drawing. 40 60 80 100 120 140 160 TIME OFF IN SECONDS A GL-5560/FG-95 AVERAGE GRID CHARACTERISTICS BEFORE ANODE CONDUCTION 180 200 4-8-48 NE =CONCUC-ION STPRTS 0 0 -0.100 00 -0.200 -0.000 0 400 0.500 -1000 -800 -600 -400 -200 0 .200 DC GRID VOLTAGE IN VOLTS K -69087-72A283 New drawing. 4.6-49 if -6Z-1, 111111.11 Nimum inumpai 111111111M.111 MIENS 11111= ME MEMM EMIR EMMEN NOMMR 1 (Ou!".,13 MINI IV LVZL-L9069- S1l0A NI 39V110A 4I a9 1081N00 3-0 9 b Z 0 Z- t- 9 - 0 I OZ - RV A 018:111r5111.1 I .1 NW A CIF 'AF, 41/ ' 11 1 I,I I rI ii I II II 1111 ICI M AE.64121-1 ..MM I AR=MIM I 1 77 0 H7 77 1111111.111.11111.111.1 11111111111 Bill 1111111111111 111111111111111 IHRHINI UiMI.N. OZ MI II Op SWHHH1O1 09 IIIII III 11 I 11 114 Ni MIN NI II I I I M M M M R H MI II 1 in: 1 i 09 001 A OZ :MEMMEN 1 IMMIAMIII MIN Opl MEN11.1 111H1111 ......I.... 091 Ulan MU A WEWMIII MI III HI HI r 1 AI II I II III 1111 NNHM III IiAI. sRmM iI N I MENEM: r MRRHERINIIIIHRINHEM NEIMEIMI IllEIREEMEMIE an= IIM1'111171 MI4 'A MAIMINIMMIIKA MMM ,mmiNimroe.J.7 n 1 I:11111111SH1414111 111111141 NIA. ICI. O - 141L.AMP 441M1.1111.4.MMTEAMIL. IMI.M 4RIAT _ P 131111 IIIIIIIHMIIR AMP IL2111111114 / CHOIR IIIIHA A4RAII4LIWM MMM ,ImucAnmommtize._111a - - 1 e HIm mp 9A MEREEM1MAPil1.IIIPUML4RR.PAROUIMM RP I1II4= M rUNA 4 W.EVM guu. 1 TEWT 41 :caa e nail . VP1.1-11 NJ O 0 R. II A., 'azims- CJALWAICAIIIIIII.' 091 00Z 111111HEHR OZZ 0172 GL -5560 /FG-95 ETI-125C PAGE 6 10-49 CAP CI -5 CONTROL GRID TERMINAL ANODE TERMINAL CONTROLLING MERCURY TEMPERATURE 10-49 (10M) Filing No. 8850 SHIELD GRID CATHODE a HEATER CATHODE, GRID & ANODE RETURN K-495590 OUTLINE GL-5560/FG-95 THYRATRON 9-28-45 Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL-5720/FG-33 DESCRIPTION AND RATING ETI.1208 PAGE 1 9-51 THYRATRON DESCRIPTION The GL-5720/FG-33 is a three -electrode mer- cury-vapor thyratron with a positive control characteristic. This offers the advantage of a tube that will operate only with a positive voltage on the grid and is ideally suited for applications which require that no current flow in the absence of grid excitation. *TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Heater voltage Heater current at 5.0 volts Cathode heating time required Anode -to -control -grid capacitance Control -grid -to -cathode capacitance Deionization time E, =120 v d -c; Ib =2.5 a d -c; 12, =1000 ohms Ece= -500 v d -c E, = 1 v d -c Ionization time Eb =100 volts; Ib =15 amp., Ee = +15 v Anode voltage drop Critical grid current at Es, = 220 v a -c Minimum 4 75 300 Bogey 5.0 4.5 2.7 8.0 Maximum 5.25 volts 4.9 amperes seconds uuf uuf 80 ... microseconds 820 ... microseconds 10 ... microseconds 16 ... volts 1000 microamperes Revised. GENERAL tidal ELECTRIC Supersedes ETI-720A dated 4-48 GL -5720 /FG-33 ETI.120B PAGE 2 9-51 TECHNICAL INFORMATION (CONT'D) Mechanicai Data Type of cooling Equilibrium condensed -mercury Temperature rise above ambient At full load, approximate At no load, approximate Mounting position Net weight, maximum Shipping weight, approximate convection 37 C 26 C vertical, base down 5 ounces 7 pounds MAXIMUM RATINGS, Absolute Values Maximum peak anode voltage Inverse 1000 volts Forward 1000 volts Maximum cathode current Peak 15.0 amperes Average 2 5 amperes Surge (maximum duration 0.1 second) 200 amperes Maximum averaging time 15 seconds Maximum negative control -grid voltage Before conduction 500 volts During conduction 10 volts Maximum positive control -grid current Average (averaging time one cycle) 0.25 ampere Maximum frequency 150 cycles per second r Condensed -mercury temperature limits +35 to +80 C GL-5720/FG-33 TYPICAL CONTROL CHARACTERISTICS SHADED AREA SHOWS RANGE OF CHARACTERISTICS CONDENSED -MERCURY TEMPERATURE 40C - 80C E, = 4.75-5.25 VOLTS 1000 800 600 400 200 / 0 K -69087-72A186 2 4 6 8 10 12 14 16 D -C CONTROL GRID VOLTAGE AT START OF DISCHARGE IN VOLTS 18 11-11-47 GL- 5720 /FG-33 ETI-1208 PAGE 3 9-51 GL -5720 /FG-33 TYPICAL VARIATION OF CONTROL CHARACTERISTIC WITH A HEATER PHASE VARIATION OF 180 DEGREES 1000 CVN FOC vtRcuRr T.Sv±',-.RA-UPt 4C t r -;.G 1,01.1r5 764 frpf f-cf PUS"; 800 WI NAN CHAIN'T-P. 4PLt- NE 1111N VL' Gf n 7 _746 - /. 1W NOLI .1,9t TAGS 600 1 400 200 0 2 4 6 8 10 12 D -C GRID VOLTAGE IN VOLTS K -69087-72A21 GL -5720 /FG-33 5-13.46 RATE OF RISE OF CONDENSED -MERCURY TEMPERATURE ABOVE AMBIENT MMMMM NEMENEMENE MEMENEMENE MMMMMMMMMM =MEM! E=NNEENEEMEMNMEMMMEMNNEMEENNNEENMNEENMNEEMMEINNEEEMMEENMEEXNEEMNENMNEEENMNMEEENNEAMWENNENEMNJNEEWMEELNMMAEMNMEEMEENNENMEENNNNEENNENNE NMNMEMMMEMNMNMEEMNEEMMEEMNNNEEENMEEMMEEMNEMNENEMEEENMEEEMMEENMNENNEEEENMUMMEMNENMEEMNEEMMEENNEENNNSEENNNPNm..mgm==mmimm 25 MEMENNEMENNENNEMEMENEMEN MMMMMM MENPM11.12MEMENNE MMMMM MENEMEMEME MMMMMM EMEMENENNENEEMEMMENNEMENNMENNMENEPt:iimMENEMENEMENNIMEMENEMENENNEEN EMMMEMNMMMEMNMNMEMEMNEEEMMEENNENMEENNEEMIMEEMMEENNENMNEEMMEENNEEMMEENNtNAEMrEiNdEEMNENEENMEEMNENNENNEENMEEMNENMEMMMEMNMEMMEENMEEMNEEENMEEENN MMMMM MENEMEMENNEMENNEMEMENEMENEMPWINMENNENNEMENENENENNEMMENNEMENNEMEN NE MMMMMM ENNEMENNEMENEMEEMEMENNEwnmENE MMMMMMMM EMMENSUMMENNEEMENNEMEMMEN NNE MMMMMM MENEMENNEMENNEMEMENEMPAMEM MMMMM MMENEMENEMENNEMENEENNEMENNEMEN MENEMEMENEEMENEMENEEEMENEEN MM MM NMEMENEMENNEENNEMENNEMENNEENNEMENNEMEN 20 N=NEMMEMNMNMEMMMEMMEENNNEEMMEENNEEMNENEENNNEEENMEMMMEMMEMNENMEENMNEENMNEENEMMEENNNNEEMMEEEMNEENMEEMNEEMMEENMEMMMMEMNMEM=EMNENNENMEENN=E EMEMENEMEMENEMENSENN MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM EMENEMENNEMENNEMENEEMENEFAMMEMENEMENNENNEEMENEMENEEMENNEENEEMEMENNENNE EMEMENNEMENEEMENNNEMEMEMEMEMENNEMENEMENNEEMENNENEMEMENNMEEMNENEMENEMEM NMMEMEMNMNMEMNMNENENNNNEEEMNENMEEEMMNEEENNNNEIWMEMEENNNEMEMMEEMNENEMNMNMEMMNNNNEENEEMEEMNENNNEEMEENNNMEMNMNMEMMEMNMEMMEENMEEMNENINENNEENNNEN MMMMMMMM NNENENEMENEMEMMENEMEMENEEMEN MMMMM =MENNE= MMMMMMMM EMMEN= NEMEMENNEENENENNEMEMENANNIMMENNENNEENNEMNEENENNENEMENENNMEMEMENNNENNEEN MMMMMM NMENMEMEMENENNENNEMENEENNENNE MMMMMMMM EMENNENNNE MMMMM NEEMMENNENNE MMMEMNMNMEMWMEMNMNMEMEMEEMMEEMENNNEEMEENLNAMNMNMEMNMEMMMEN=ENMEMNENNENMNMEMEMNMEENNENEMEEMNEENMNEENMEEMNMNEEMMEENNNNEEEMMEENMNEENNNEENMEENN 15 MMMMMMMMMM MENEEMEMENYA MMMMM immaimmomms MMMMM mom MMMMMM mmtommomm MMMMM MMMMMM ENEEMENEMEMENNA MMMMM MENEM= MMMMM ENNEMENNEMENEEMENNEMENNIMMENNEN NEMENEMENEMENENNEENFEEMENENEMEMEEMEMENEMENENNNEENNEMENN MMMMMM =MENEM NNNEEMEMNMEMMMEMNE=NMEEENNENME=MEMNMUMMMEMMENNEENMEENMEEENMNEENEMMMMMEMNMNMEMMMEMNMEMMEENNENEEMMEMMEINNNENMEEENMEENNNEEEMMEEMNEENENMNEENN MMMMMMMMM EMENEEMEMENNMENNMEMENNEMEMMMMMMMMMEMENEEMEMENEMENNEMEMENEMENE mmummommoommommmuti MMMMMMM ENNEMEMEME MMMMMM NEMENNEENNENNEEMMENNEMENEMEN NMEMNMNMEMMMEMNENmNmMuEmMmEoNmNmIMoEmNmEoMmEmMiEmMEmNtEuNmNmEuMmEEmMoEmMmEoMmEmNoNEmNmEmMoEmNmEoMmENmNuEmEuNmNmEuMEmNmNiEmNmNoEmEmN 10 MN= MMMMMM MMMMMM =MENA MMMMMM NEEMEMEMEMEM MMMMM NEMEMEMENEMEN MMMMMM =EMMEN= =MENNEN MMMMMM EMENNEMENEMENEEMENEMEMEMENNEEMENNEENENEMEEMENE EMMEN MMMMM NEMENEUMMONMENNMEENNEEMEN MMMMMM MEMENEMENNEENNEMMEMMEMENNENNE MMMMMM NEEMENNENVEMEMENNEMENEMENEMEN MMMMMMMMM NNEEMENNENEMENNNEEMENEMMEN MMMMMMM MIENNEMINNUMENNENNIENNEENENNEMEMENEMEMENNENEMENNNENNEMENEEMENNENNE MMMMMMMMM =EWEN MMMMM MEMINNEMENNEMEN MMMMM NEENNEEMNE MMMMMMMMMM NIMENNEENE MMMMMMM NNEEMENNENENEMENNENNEMENNMEMENNENNENNENNENNE MMMMMMMMMM NMMINNEMEN MMMMMMMM EMEMEMEMENNEEMENNEEMEMENENEMENNEMEMENEMENMENNENNENNNEMENMENME MUNN MMMMMM =MUNN= MMMMM NNMENNEMENEMENNEMENNEMENENENNENEMENEMENEEMNMENE MENNENNENNENZIMMENEMENEMENNEENNMENNEENEEMENEMENEMENEMEN MMMMMMM ENNENNEEN 5 MMMMM NENNNENAMENNEMENEMENNENNEMEMEMENNEEMENEMENEMENEMEMENNENNEMENNEEMEN WEENNENNEMENEMEMEMENEENEENNEMEMENEMEMENEMENEMEMENEMENN MMMMM MENEMENEMEM MMEENNEMMMEMNMEMEMEFVMAEMMEENNNEMEENEMMEMMMEMNMEMEMEEMNENNENEEMMEENNENMEEMNEENMNEENEEMMEENMEEMMEENNNNEEMMEENNENMEEMNENMEEMNEEMMEENNNEEMMEENN ENEENNENNUMEMENNEME MMMMMMM MEMEMEMENNEMENEENNEENNENNNE MMMMMMM MENEMMEMEN MENEMENWAMENNENNEMEMENNEMINEMENNEMENNEMEMEMMEMEEMENNE MMMMMMM MENEEMENNEN MMMMM EFAMENNEEMENEENEMENNEMENEMENEMENEMENEMENEEMENEEENNEMENNEEMEMMENEM MENEENEMMMWAUSEMEMMMEIMIEMNMEEMMOMNEEMENMNNMEMMMEMNMEMMEMENNNEEMNENNENEEMMEENMENMEEMNEENMEENNNNEEMEMEEMNEENMNEENEEMEEMNEMEEENMNEENENNENMOEMNM NPtEWANEMEMMENNEMENNEMENNENNEMENEMEMENNENEMENNEENNEENNENNENNENNNENNEMME 0 5 10 15 20 25 30 35 HEATING TIME IN MINUTES N-21529ZA 4-8-48 GL- 5720 /FG-33 ETI-120B PAGE 4 9-51 4 3 2 GL-5720/FG-33 CATHODE REHEATING CURVE ANODE VOLTAGE = 0 O K -69087-72A184 20 40 60 80 100 120 140 160 180 200 TIME OFF IN SECONDS 1-16-48 GL-5720/FG-33 AVERAGE GRID CHARACTERISTICS BEFORE ANODE CONDUCTION 0.4 0.3 0.2 0.1 0 :Oc U ES 0.1 a -0.2 0.3 0.4 -500 K -69087-72A185 -400 -300 -200 -100 D -C GRID VOLTAGE IN VOLTS 100 11-7-47 1000 900 MO 800 700 600 WMONEEIMM=MPE' MMMMM mmomm 500 1111 GL-5720/FG-33 ETI-120B PAGE 5 9 -5 1 GL-5720/FG-33 TYPICAL CONTROL GRID CURRENT VS. CONTROL GRID VOLTAGE DURING CONDUCTION wissow mmmmmmmmm m m atm mmiNsminw ...l m I 1 ..l 1 MI I sannumissom EOM mmmmmm I MI I I 1 III I. ENO MO I.. 111111 !WI OIMEORM MMMMMMMM NWIIIIRSEE11111111NWII11111111MINEWIREMENNIMMENWEIINIMI i 1 lIII 1 MMMMMMMM MUNOMMERIM I WEE MOO 1 NEMER MI1 I MEIONWOOMMOMNOMMUMMNE1I MIMOMEIMUROMMOMEMMIIMONMERMOMM 1 11 EMI 1 . III IIMOM MEMNON MIEWIMUMOMMUEMBOON .1 WHIM NUNN ION OMURA HON 1 ImN 1 W MMMMMMMMMMMM ONSMIMMIMEMOMOMMORMI MA v 400 1 300 IMM 11111 1 200 MON P 1 100 G. IMUIONORM111 19 0 MmMmMMiMmM rmmMmmMuM_uEr.wrjrqamm, rIrvit- RENE MIINOAU M 11 WAREN= MMMMMMMMMMMMMMmmmommal WWI 1111 M ml 11i WOOF MOOMMEMB MMMMMMM 1 FM /11I IC Pill 1111 1, M11/MMOM WON EOM NER1 4111WIMO / vs m m MENONNEO 11111WIRWOME 111111IMMBIll -100 IMEMMOMMIIMIMMI INEWnEWMUNMICM. Fr!."1".111 ENERMIE1111 NWEBEEMICII -200 10 8 -6 -4 -2 0 2 4 6 K 69087-72A137 D -C CONTROL GRID VOLTAGE IN VOLTS 4-29-47 GL -5720 /FG-33 ETI-120B PAGE 6 9-51 .400 MIN." 11 ANODE TERMINAL CAP OCI-5 3" DIA. MAX. -ADnIA7." 4-4 ZONE FOR CONDENSTEDt'i -4- MERCURY TEMR--a.. MEASUREMENT BASE A4-10 K-4373360 9-51 (11M) HEATER TERMINAL GRID & ANODE RETURN TERMINAL GRID TERMINAL CATHODE TERMINAL OUTLINE THYRATRON GL-5720/FG-33 5-1G-48 Tube Department, Electronics Division GENERAL ELECTRIC Schenectady, N. Y. GL -5728 /FG-67 DESCRIPTION AND RATING ETI-123B PAGE 1 5-49 THYRATRON DESCRIPTION The GL -5728 /FG-67 is a three -electrode mer- teristic. This tube is designed for use in inverter cury-vapor thyratron with positive control charac- circuits where a short deionization time is required. *TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Heater voltage Heater current at 5.0 volts Cathode heating time Minimum Bogey Maximum 4 75 5.0 5.25 volts 4.5 4.9 amperes 300 seconds Anode -to -control -grid capacitance Control grid-Cathode capacitance 3 25 micromicrofarads 8 90 micromicrofarads Deionization time, approximate Eb =120 v d -c, Ib =2.5 a d -c, Rg =1000 ohms E= -500 v d -c E =0 Ionization time, approximate Ebb =100 volts, lb =15 amps, eg = +35 Anode voltage drop Critical grid current at Eg = 220 v a -c . Technical Information changed throughout. 5 microseconds 850 microseconds 15 microseconds 16 volts 10 microamperes GENERAL ELECTRIC Supersedes ETI.123A dated 10-47 GL -5728 /FG-67 ETI-123B PAGE 2 5-49 TECHNICAL INFORMATION (CONT'D) Mechanical Data Type of cooling-Convection Equilibrium condensed -mercury temperature Rise above ambient At full load, approximate At no load, approximate Mounting position-Vertical, base down Net weight, maximum MAXIMUM RATINGS, Absolute Values Maximum peak anode voltage Inverse Forward Maximum cathode current Peak Average Surge (maximum duration 0.1 second) Maximum averaging time Maximum negative control -grid voltage Before conduction During conduction Maximum positive control -grid current Average (averaging time, one cycle) Condensed -mercury temperature limits 31 C 25 C 5 ounces 1000 volts 1000 volts 15.0 amperes 2.5 amperes 200 amperes 15 seconds 500 volts 5 volts 0.3 amperes +40 to +80 centigrade GL-5728/FG-67 CONTROL CHARACTERISTICS SHADED AREA SHOWS RANGE OF CHARACTERISTIC CONDENSED-MERCURY TEMPERATURE 40 C-80 C E, = 4.75-5.25 VOLTS 1000 900 800 700 600 500 400 300 200 100 -16 -12 -8 4 0 4 8 12 16 20 D -C CONTROL GRID VOLTAGE AT START OF DISCHARGE N VOLTS K -69087-72A207 4-8-48 GL -5728 /FG-67 RATE OF RISE OF CONDENSED MERCURY TEMPERATURE ABOVE AMBIENT Ef = 4.75 VOLTS GL -5728 /FG-67 ETI.1238 PAGE 3 5-49 MMwMMEEEEoMMMmMEMEEmMMMRiMEEEMmMRMEmEMEMuMMMEmEEMMmMMEEeMEEMnMMEMiEEMEmMMMMMEEmEMMMuMEEMmEMmMEMrEMEMiEMmMEEmEMMuMEEMmEMEMmEEMEiMMMMEEpEMEMMmEEREeMMEMmEEEURmARMEJiMEEEmMWMMmEEMEELuUMMSmMEEMmEROMuVSMEEAmEMNLm-EML-oPME-mEFEEEnMRiEEMmMEEmMMMEiEMMmMMEmMMEMlERMiMMEmEEMmRME 25 MimimEmomEmmMoomMmMmuMmMmMimMuMmmMMmmsMimmnomMiumgMmmMMmiMMMomMMMmmMMMumMmmoMomuMmmomm=mmm=oooMmmmMMpMmmMoMoiMMmmnMMmmsMiommmmamummmmuu4mmmmmumimomamummmmmmtmumoi:numniimmmianimmmiilmimniilmiummtmmpslimmlumem.ommummmmmumumumomommmmmmommuuniummsmmmmmmMmooMMmmMMMmmMMMiuMMMmmMMmm=Mmuommmummommmmm MMMMMMMMMMMM mm MMMMM mEiMmEmMuMmEmMiEnMuEmMmEiMsERMEMEMMMMEMMEEMREEMEEMEMMMEMMMEMMMEMEEMMEEMMEEMMEEMR EMEMEMEMMEMEMEMEMEMEMEMEM MM K MM mommummimminommommommimmommiumm imommmmuommmmeonummmiMMmMmMoMmMmEuMmEMmEoRmEMmEiWnAMiMmEmMEuMmEmMEuMmEmMoEMmEmMuE mMmMoMMmMmuREmMmoMmMMmMoMmMmUuMmMEmRoImESm' 20 MUMMER= MMMMMM EMEMEMEM MM MM MEMEMEMEMEREMEMEMEMEMEMMEMEMEMEMEMEMEME MMEMEEEMMMMEEEEMMMMEEEEMMMEEEEMMMENMEMEEMEMMEMEEEMMMMEEEEMMMMEEEEMMMMEEEMMMMEEEERMMMEMMEMEEEMMMEMEEMEEMEMMEMEREEEMMMMEEEEMMMMEEEEEMMMMEEEEMSMMEOMEMMMMEMMEMMEMMEMMEMEMMEMMEMEMMEMMEMMEMMEMEEMMMMEEEEMMMMEEMEMMMMEEMEMMMMEEEEEMEMMEMEEMMEMEEMEMMEEMEMMEMEE EMEMEMEMEMEMMEMEMEMERMEMEMEMEMEMEMERE MMMMM ME MMMMMM MEMEMEMEMEMEMEME MMEEMME=MEMMMEMMMEMMMEMMEEMMEEMMEMMEEMMEEMMEMMEEMMEEMMEEMMEMEEEMMEEMEEMMEEMMEEMMEEMMEEMMEEMMEEMMEEMMEEEMMEEMREMMEEMMEE 15 MEEMMMEMRMEMMMEMEEMMMEEMMEERRMEMEMEMERERMMMEEEAMEMEMMMEEEMMEMMMMEMEMMMEMMEMEMEMEMEMEREMMMEEMMMMEEMMMMEERMMMMEMMMMMEMMMMMEMMMMEMEMMMEMEMMMEEMMREEMMMEEEMMEMEMMMEMEMMEMMMEEMMMEEEMEM MMEEMMEMMMEMMMEMMEEMMMEEMMEEMREMMFEEMEEMMEERMEESMSEEMMEEMMEEMMEEMMEEMMEEMMEEMMEMMMEMMMEMMEEMEMMMEMMMMMMEMMMEMMEEMMEEMMEEMREEMMEEMME MEMMEMEMEMEMEMEEMEME MMMMMM EMEMEMEMEMEMMEMEMEREM MMMMMM EM MMMMMM ME REEMMEEMNEEMMMEEMMEERMEMMMMMEMMMMEEMMEEMMEMMEEMMEEMEMMEEMMEEMMEEMMEEMEEMMEEMMEEMMEEMMEEMMEMMEEMMEMMMMMMMMMMMMMME MMMMMMMMMMMMMEM EMEEMEMEMEMEMMEMEMEMEMEEMEMEMEMEMEMEMEMERME MMMMM MEMEMEME MMMMM MEM MiMEEmMMmMEoEMmREmEMMuEEmMMmEEoMMmMEmEMMoEEmMMmEEMiMInEEuMMEmEMmEMiMEmEMgMEEmMMmEEuMMmEEmMMoEEMmREEmMMoEEmMMmEEoRMEmEMmMEeMMmEEmMMuEEMmMmEMoMMEmMMmMEMoMMmEmMMuEEmMmMEMuMMmEMmMMiEmMMmEE 10 EMEMEMEMEMEREMEMEM MMMMMM MEREEMEMEMEMEMEMEMEREMEMEMEM MMMMMM MUMMERIES MEMEMEMEREMEMEMEMERMEIMEMEMEMEMEMEMEMEMEMEMEMEMEMEMEMEMEMMEME MMEEMMMMEEMMMMEEMRMEMEEEMMMEEEMMMEEEEENMMEMEVEMEMEMEMMMEEEMMEEMMEEEMMMEEEMMMEEMEMEEMEMEMEMEMEMERMEMEMEMEEMMMEMERMMEEMMMMEEMMMEEMMMEIEMMMEEM=MMEMMMMEMMMEMMMEMEMMEEEMMMEEMMMEEEMNME=E EMMEERMEEMMEMMEEMMEEMEMMEEMMEEEMMEMMMEMMMEMMMEMMMEMMMEMMMMEMMMEMMEEMEEMMEMMMMEMMMEMMEEMMEMMEEMEMEMRMMMMMMMMMMMEMMEMMMEMMMEMMEMEE 5 MMoEmEMmMEoEMmREpEMoMEmEMmMEiEMmMEmMEuMMEmEMmMEiEMnMEuEMmMEmEMuMEmEMmMEuEMmMEMEMEMMEMMMMMEMMMMEMmRMoEEmEMmMEuEMmREmMEoEMmMEmEMoMEmERmMMoEEMmMEmEMoMEmEMmMEoEMmEMmEoMMmMEmMMoMEmMMmEiIMuSEMm MEMEMEMEMEMEMEMEMMEMEMEMEMEMEREME MMMMM REEMEMEME MMMMM MERMEREME MMEEMMEMMMEMMMEMMUUMMEMMMEMMMEMMMEEMEMMEEMMEEMMEEMMEEMEMEEMMEEMMEEMMEEMMEEMMEEMMEERMEEMMEMMEEMMEEMMEEMMEEMMEEMMEMEEMMEEMEEM RREEMMEMMMEMMMFMAMWMAEIMMMEMMEEMMMEUMEMMMEMMMEM MMEMMMMMMMMEMMEMREEMMEEEMMEEMMEEMMEEMMEEMMEEMMEEMEMREEMMEE MMMMMMMMMMMEEMMMMEENN.=. EERMEEMMEEMTEArM.EERMEEMMEEMREEEMMEEMMEEMMEEMMIEIMMEEMMEIMEERMEEMMEEMMEEMMEEMMEEMMEEMMIEIMIEIMIEMMEESMIEMMEEMMEEMREEMMMEEMlEl MEMEEEMAMMMMEIMEMMMEMMEEMMEEMMEEMMEEMMEESMSEOMMEMMEEMMEEMMEEMMEEMMEEMMEEMMEMEEMMEEMMEEMMEEMMEEMMEEMMEEMMEEMMEEMMEEMEMMMEMMMEMMENMEEMM PT: 0 5 10 15 20 25 30 35 N-21529ZA HEATING TIME IN MINUTES GL-5728/FG-67 4-8-48 CATHODE REHEATING CURVE ANODE VOLTAGE =0 4 3 2 1 0 20 40 K -69087-72A184 60 80 100 120 140 160 180 200 TIME OFF IN SECONDS 4-8-48 5110A NI 39V110A 0189 3-0 130ZVZL-L8069-)1 001 0 001- 00Z- 00£ - 0017- 008 01 - 8 - 9 - t) 1 MEM 00" -No di NCIJKY10N100 Wiym 10 18V1c 1V 1q3d6110 0 9 SleV1S '401131110NO3-0 11\ 9 Ni 3na etN?WId 32.0!38 a 31)7V1-0 da_RIONV L9 eJ/kit-19 NOLLDIIGNOD 34ONV 3210339 SDI1S12131DV2IVHD GINO 30V2I3AV GL-5830/FG-41 DESCRIPTION AND RATING ETI-121B PAGE 1 5-49 THYRATRON DESCRIPTION The GL -5830 /FG-41 is a three -electrode mercury- istic. This tube is designed for grid control rectifier vapor thyratron with negative control character - application of relatively high voltage and current. * TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Heater voltage Heater current at 5.0 volts Cathode heating time required Minimum 4.75 300 Bogey 5.0 20 Anode -to -control -grid capacitance 15 Control -grid -to -cathode capacitance .. . . ....... 18 Deionization time, approximate Eb =120 v d -c, Ib =12.5 amp d -c, Rg =1000 ohms E = -1000 v 250 E= -22 v 4000 Ionization time, approximate Eb =100 v, Ee = -30 v, Ib =75 amp 10 Anode voltage drop 16 Technical Information changed throughout. Maximum 5.25 volts 22.5 amperes . seconds micromicrofarads micromicrofarads microseconds .... microseconds .... microseconds . . volts GENERAL ELECTRIC Supersedes ETI-121A dared 10-47 GL-5830/FG-41 ETI-12113 PAGE 2 5-49 TECHNICAL INFORMATION (CONT'D) Mechanical Data Type of cooling-convection Equilibirium condensed mercury temperature rise At full load, approximate At no load, approximate Mounting position-vertical, base down Net weight, maximum 31 centigrade 25 centigrade 2.3 pounds MAXIMUM RATINGS, Absolute Values Maximum peak anode voltage Inverse Forward Maximum cathode current Peak Average Surge (maximum duration 0.1 second) Maximum averaging time Maximum negative control -grid voltage Before conduction During conduction Maximum positive control -grid current Average (averaging time, one cycle) Condensed mercury temperature limits 10,000 volts 10,000 volts 75 amperes 12.5 amperes 1500 amperes 30 seconds 1000 volts 15 volts 1.0 ampere +40 to +65 centigrade GL-5830/FG-41 THYRATRON CONTROL CHARACTERISTICS SHADED AREA SHOWS RANGE OF CHARACTERISTIC CONDENSED MERCURY TEMPERATURE 40-65 C E,--= 4.75-5.25 VOLTS 10.000 8000 6000 4000 2000 0 -18 -12 -6 0 6 12 D- C CONTROL -GRID VOLTAGE AT START OF DISCHARGE IN VOLTS K -69087-72A246 A Revised curve. 5-4-49 A GL-5830/FG-41 TYPICAL VARIATION OF CONTROL CHARACTERISTIC WITH A HEATER PHASE VARIATION OF 180 DEGREES GL5830/FG-4 ETI-121B PAGE 3 5-49 MEM mMmMMmMoEomMmMEmEniMmMAsmENnmuMOiiMmMuImmELimmMEmuoMMmmmEMimmNEsuMIummMMmmMoMmuEmEoMmMpmMmMiUmiEmMnnMmM-uMmEwmERurMmUmaMoLmmIMmmuIiimmILromMMnmuMMwmmAEnLmuMnIumMaAmEmMMwMnAswJmoMatiUimmwMmmmmNiiaiWOmmUWmMm1mmMmUooEuWmmMAmmmMInEoiMoMmnAEnouMLommOIrMmmSmMooUaEmImTMUmmMmMoOuaWMmmrM2omaEMmmoMMmmmME 10,000 EMMEMMEMMEMMIMEMMEMMIMMEMIPTHIPOLORINMAJA4IntrellINAMWMffilWallin MEMMEMMOMMEMMIIMMMEMMEMINILAIUMUM=W=AERW:=MABLIULALCIARCMMUIUMU5=MM/Wil IIMMOMMINNIMMEIMMOMMITEMEMENMEIMMEMMOMMEMMEMEMEMMMEMMEMMEMMEMMEMMEMMEM 11111111MMEMMEMMERUMMEMINI MMUMMEMEMMEMEMINIMMEMMEMMEMMEMEMMUMOMMEMEMEMMIUM 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D -C GRID VOLTAGE IN VOLTS 5-4-49 GL- 5 830 /FG-4 1 ETI-121B PAGE 4 5-49 A GL-5830/FG-41 AVERAGE GRID CHARACTERISTICS BEFORE ANODE CONDUCTION El --- 5.0 VOLTS 100 EMENEEMEN EMEMENEMEN EMENNEMENEMEMENNEMEE NM M ENE NiOmMmEuNsNuEmNmNEsMiEmNmEoEsEmMsEMmEmMmEMsEmNsNsEmMoEmMmEiNmEmMmEmNEmMuEmNmMoEmUmSEm NNE MENEM EMONEMEN gNmNEmMENNmEmMuEnNNsEmMoEnN IINHEMENENNENNEMEN M SE MEMENEMENNE OMEN =EMMEN MENNE M E ME EMEMERNMENE MEN NUMMI NI SEMMES NENE NmE EENEMMEENNNEEEMEEMEENNNEEMMEENNENEMMEEMNEENME=MEEMEEMMEEMMEEMMENEENENwEon M RENE NI MEN N ENE m m iIImEmEEMEISnMSEmMuNMEmEOmNNy 0 XII NMN EN NEM MEN MINIMMEMMEMEMMEMEMEM OM ME= MINIMM MEIMMUM.1011,Trimlismmi2s ONNEMENEMENNEMENNEMENNEEMENEMENNEEN MEMENEWZdEv-dEN E . ' Pil" IP' 11 IMIII 1 1111:11MINIMMOSEMMEMMOMM IIMEM mmommr.421m11n.-igii mmimm nom sworn MEM MEN "'iii" m mm EsNmEiNsNmEnSsEsMmEoNsEiEmSmEsMsEuNmmMsEnNuNmEsEmNpErEkNyNnOiMmOmMmMEmEmNmEoMmEpNoErMTE=N ENEESMENE mMuEmNsOMaMEN . pp NEEMENNEMENNEENEUESSEMEMMEMPAAgAANNEEMEEWASEAEll SE IN NM MEM MER NEEMENNEMENEMENESSEMEMENNEPLEMENEMENEEniNEMEMEN ON NE MENEM SE mum '00- Pr ii IPIP' .gi iii .1111 p, A) Al .41 mmssmonsmnmmssimmurwnsm Airsammsmommomm mom MINE ENRINNEMENEME miasma om M = umg mmismsnni.$a.AmdmAms _ib Ad -A iiiiiiiiiiiiiiiiifiiiii -100 SV MESENEENNEEMENEANREENNnSniNposommmismEMnsnN I 11mOEMmsMmIsMnMrrKiArmsWsMmIsUmiMsrIOEMmEIIEMMMEEiMNmKAOmMmAnisvmMNEEMniMMmEiMENEMNMsEEM on EMElmNEmiinsMssNmEounmsuoms 11 11 VAn- .r ill 4 II 1 11!11 1 1 EAr' rM FAM 1M1U11M 4 V M MIMMEMMMEMM MEMMEMMEMMOMM MIME MM MUM DEM MMIAMAMEMEMEMPANAIdNIM MMEMMIIMMEMME pinsmnssmosimmomms m Emmons UsNSmIsMnMmIuTrAaMmMsImNiIsMmEiMmEmFwIpMmMpImNm insinimmnsppmmE mminmsmEn MMEMMEMMInim 0111 MIIMEMMEME inn= mnsmsnummn MEMNIMME emomms miomnmnuimmmmruimsmmismmmnisnmiosnssmmssmsmmoummmeummmmousismimnonmnm mnimmns minimums mmmonnsinmsm vs -200 snows= mminumsnm immommorinummummumumm mum immunimmumnimmummimmummommomm A mmEnnmmusummEnnnsimmonnommusimmonusimmmmsmsnmennmmmmummonnsnm -1000 K -69087-72A240 m New curve. -600 -200 0 D -C CONTROL -GRID VOLTAGE IN VOLTS m 200 5-4-49 A GL-5830/FG-41 RATE OF RISE OF CONDENSED MERCURY TEMPERATURE ABOVE AMBIENT Ef =4.75 VOLTS GI.5830 /FG-41 ETI.121B PAGE 5 5-49 30 11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111 25 20 II 11111111 1111 11111 1111 11 1111111111111111111111111111111111111111111111111111111.111111111111121!!!! mm IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIMIIIIIIIIII 111111111 11111 1111111 1111111 11111111 111111111 1111 III 1111111 15 mmilmmouriowillinomiolumpli moodim 11111 11111111111 111111111:II III 111111 111111 1111111111111111111111111111111111 111 11111111111 11111 III 1111111 10 5 11111 111 11111111111111111111111 1111 111111 1111 1111111111 1111 11 11 1111111111 1 1 11 111111 0 5 10 15 N-21532ZA ANew curve. 20 25 30 35 40 45 50 HEATING TIME IN MINUTES 55 60 4-4-49 AGL-5830/FG-41 TYPICAL CONTROL -GRID CURRENT VS CONTROL -GRID VOLTAGE DURING CONDUCTION 600 Ef .o VOLTS A- C 400 200 0 -200 lb G. 25 RCS -400 lb -= 12 .5 tfiPERES -600 -16 -14 -1,2 -10 -8 -6 -4 -2 0 2 4 K -69087-72A241 -New curve. D -C CONTROL -GRID VOLTAGE IN VOLTS 5-4-49 GL -5830 /FG-41 ETI-121B PAGE 6 5-49 OUTLINE GL-5830/FG-41 THYRATRON i-----, 800" t .007" 1 ANODE TERMINAL .785" MIN. CAP NO. CI -8 .) HOLE IN GRID TO OBSERVE CONDUCTION t 13., 3., 81--6+---2r-- In 4 1-L-- 51" DIA. 16 MAX. 9 ii+ 3" I632- 16 ZONE FOR CONDENSEDMERCURY TEMPERATURE "'MEASUREMENT BASE NO. A4 -75 5-49 (10M) Filine No. 8850 C AT HODE AND HEATER TERMINAL GRID TERMINAL HEATER TERMINAL CATHODE TERMINAL K-51 82056 5-4-49 III Revised outline. Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL -5545 DESCRIPTION AND RATING ETI-275C PAGE 1 12-50 THYRATRON DESCRIPTION The GL -5545 is a three -electrode, inert -gas filled thyratron with a negative control characteristic. This tube is designed primarily for all control applications. The GL -5545 combines the desirable temperature characteristic of gas tubes, maximum ratings over a wide temperature range, with the long life of mercury tubes. Another feature useful in industrial applications is the quick -heating cathode only one minute is required for the cathode to reach operating temperature. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Electrical Data Filament voltage . Filament current at 2.5 volts . Cathode heating time required Anode -to -control -grid capacitance . Control -grid -to -cathode capacitance Deionization time, approximate E,= -250 Ec= - 12 Ionization time Anode voltage drop, typical Minimum . 2.37 60 Bogey 2.5 21 0.8 45 50 500 10 16 Maximum 2.63 volts 23 amperes seconds micromicrofarad micromicrofarads microseconds microseconds microseconds volts GENERAL ELECTRIC Supersedes ETI-2758 dated 8-48 GL -5545 ETI.275C PAGE 2 12-50 Mechanical Data Type of cooling. Mounting position Net weight, maximum TECHNICAL INFORMATION (CONT'D) convection any 12 ounces MAXIMUM RATINGS, Absolute Values Maximum peak anode voltage Inverse. Forward Maximum cathode current Peak. Average Surge (maximum duration 0.1 second) Maximum averaging time Maximum negative control -grid voltage Before conduction During conduction. Maximum positive control -grid current Anode positive . Anode negative Commutation factor* Ambient temperature limits 1500 volts 1500 volts 80 amperes 6.4 amperes 1120 amperes 15 seconds 250 volts 10 volts 0.20 ampere .. 0.10 ampere 130 - 55 to + 70 centigrade * Commutation factor is the product of the rate of current decay in amperes -per -microsecond just prior to commutation and the rate of inverse voltage rise in volts -per -microsecond just after commutation. GL -5545 TYPICAL VARIATION OF CONTROL CHARACTERISTIC WITH A FILAMENT PHASE VARIATION OF 180 DEGREES GL -5545 ETI-275C PAGE 3 )2-50 (E1==2.5 VOLTS) VOLTAGE OF FILAMENT TERMINAL NEAREST GRID TERMINAL IS OUT -OF -PHASE WITH ANODE VOLTAGE (CHARACTERISTIC SAME WITH D -C ANODE VOLTAGE) FILAMENT PHASE REVERSED r 11r1 1 1 iii 1111110111P1il& 1 Io mm.lmm1m 11m11111 E I mmm1mmmmnm'mami1i11110mu11 1111 mmum . 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R. tEll lippliatilL1A. 111,VFELM ......muntries.w.Lirs_a or......10..., 111111 INIMOMMIBM UM MO 11110121',1 ME II MO 11111111111MEM Light IIIIm IR II ME MUSSIMESIM MO 0 CD 0 CD CD CO qD ,zi- C) CD C) 0 CNI CA nt CD CD VD CO CD I I I I I S3d3cIINV11111A1 N I 1113212 113 0189-1081NOD -a GL -5545 ETI-275C PAGE 6 12-50 ANODE TERMINAL BASE CI -5 8+I FILAMENT TERMINALS NC 12-50 (11M) N-21525AZ CONTROL -GRID TERMINAL BOTTOM VIEW OF BASE OUTLINE GL -5545 THYRATRON 2-3-48 Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL -2D2 1 DESCRIPTION AND RATING ETI.279 PAGE 1 4-48 THYRATRON DESCRIPTION The GL -2D21 is a four -electrode inert -gas -filled thyratron with negative control characteristic designed for use in relay applications. Features of this tube are a high control ratio essentially independent of temperature over a wide range, low grid -anode capacitance, and very low grid current. The 2D21 is not appreciably affected by line- voltage surges because of its low capacitance, and the low grid current allows it to be used with a high value of resistance in the grid circuit with resultant high circuit sensitivity. This thyratron, in a high -sensitivity circuit, can be operated directly from a high -vacuum phototube. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. MAXIMUM RATINGS, Absolute Values Maximum peak anode voltage Inverse Forward Maximum cathode current Peak Average Surge (maximum duration 0.1 seconds) Maximum averaging time Maximum negative control -grid voltage Before conduction During conduction 1300 volts 650 volts 0.5 ampere 01 ampere 10 amperes 30 seconds -100 volts -10 volts GENERAL ED ELECTRIC GL -2D21 ETI-279 PAGE 2 4-48 TECHNICAL INFORMATION (CONT'D) Maximum positive control -grid current Anode positive Anode negative Maximum negative shield -grid voltage Before conduction During conduction Maximum positive shield -grid current Anode positive Anode negative Maximum heater -cathode voltage Heater negative Heater positive Ambient temperature limits 0.01 ampere 0.01 ampere -100 volts -10 volts 0.01 ampere 0 01 ampere -100 volts 25 volts -75 to +90 centigrade GENERAL Electrical Data Minimum Heater voltage 5 7 Heater current (Ef =6.3 volts) Cathode heating time required 10 Anode -to -control -grid capacitance, typical Control -grid -to -cathode and shield -grid capacitance, typical Deionization time, approximate Ebb -=125 v d -c, Ib =0.1 amp d -c (a) Eo = -100 v d -c. (b) Ed = - 11 v d -c Ionization time, approximate Anode voltage drop, typical Critical grid current, Ebb =460 v rms Bogey 6.3 0.60 0.026 2.4 35 75 0.5 8 Maximum 6.9 volts 0.66 ampere seconds uuf uuf microseconds microseconds microseconds volts 0.5 microamperes Mechanical Data Type of cooling-Air Mounting position-Any Net weight, maximum 0.3 ounce GL -2D21 AVERAGE CONTROL CHARACTERISTICS Et = 6.3 VOLTS GRID RESISTOR -= 0.1 MEGOHM 800 600 .0.J 400 0O 9O 200 .8 -4 K -69087-72A152 0 4 8 D.0 CONTROL.GRID VOLTAGE IN VOLTS 12 16 10-21-47 GL -2 D21 AVERAGE GRID CHARACTERISTICS DURING ANODE CONDUCTION - 6.3 VOLTS SHIELD -GRID VOLTS -0 2 lb 2 0' 8 0 8 0 a 4 8 O GL -2D21 ETI.279 PAGE 3 4-48 -8 -6 -4 -2 D -C CONTROL- GRID VOLTAGE IN VOLTS K -69087-72A153 5-15-47 GL -2D21 OPERATIONAL RANGE OF CRITICAL GRID VOLTAGE R ES A E F 0 1 OAC .E S 0 AEG - AK: I Off CRC B TUB S D S U:S 0 NIT AL ES 500 400 300 200 100 -8 K -69087-72A155 -6 -4 -2 D -C CONTROL -GRID VOLTAGE IN VOLTS 0 6-19-47 GL -2D2 1 ETI.279 PAGE 4 4-48 N -I 5099AZ OUTLINE GL -2D21 MEASURED PROM BASE SEAT TO BULB- TOP LINE AS DETERMINED BY RING GAGE OF 3-26-47 4-48 (9M) Filing No. 8850 Electronics Department GENERAL O ELECTRIC Schenectady, N. Y. GL -5544 DESCRIPTION AND RATING ETI-282 PAGE 1 8-48 THYRATRON DESCRIPTION The GL -5544 is a three -electrode, inert -gas filled thyratron with a negative control characteristic. This tube is designed primarily for all control applications. The GL -5544 combines the desirable temperature characteristic of gas tubes, maximum ratings over a wide temperature range, with the long life of mercury tubes. Another feature useful in industrial applications is the quick -heating cathode-only one minute is required for the cathode to reach operating temperature. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes Electrical Data Filament voltage Filament current Cathode heating time required Anode -to -control -grid capacitance, typical Control -grid -to -cathode capacitance, typical Deionization time, approximate E,= -250. E, = -12. Ionization time, approximate. Anode voltage drop, typical. Minimum 2 37 60 3 Bogey 2.5 12 0.8 45 40 400 10 16 Maximum 2.63 volts 13.5 amperes seconds micromicrofarad micromicrofarads microseconds microseconds microseconds volts TUBE GENERAL ha ELECTRIC GL -5544 ETI-282 PAGE 2 8-48 TECHNICAL INFORMATION (CONT'D) Mechanical Data Type of cooling Mounting position Net weight, maximum convection any 11 ounces MAXIMUM RATINGS, Absolute Values Maximum peak anode voltage Inverse* Forward Maximum cathode current Peak Average Surge (maximum duration 0.1 second) Maximum averaging time Maximum negative control -grid voltage Before conduction During conduction Maximum positive control -grid current Average (averaging time, one cycle) Commutation Factor*. Ambient temperature limits 1500 volts 1500 volts 40 amperes 3.2 amperes 560 amperes 15 seconds 250 volts 10 volts 0 20 ampere 130 - 55 to +70 Centigrade * Commutation factor is the product of the rate of current decay in amperes -per -microsecond just prior to commutation and the rate of inverse voltage rise in volts -per -microsecond just after commutation. GL -5544 ETI.282 PAGE 3 8-48 GL -5544 TYPICAL CONTROL CHARACTERISTICS SHADED AREA SHOWS RANGE OF CHARACTERISTICS 1600 1111111111MMEMEMEMEMEMMUMMEMEMMUMMEMMENMEMEMEMMEMEMMOMMEMEMMEMEMMEMMINME MMRMEIUMUMMMIENMEIMINMMMNMEEMEMMMEMEMMMEIERIMMMMEEMMMMEMEMIMIMMEEMMMMEEMMMMMEEEMMEMNEMIMOUNMNMUMEMMMMEIEMMMMEEMMEIMMNMMUEMOMEMMMMEMEMMEMMEEMMMEMMMMEOEMMMEMMMMMIEEMMNEMMEMEEMMMIMMNEIEMMMMMEMEMMMMEMMEEOMMMMMOEIEMMMM IIIMMENIMMINIMMEMMEMEMEM EMMINIMINMEMMEMMIIMMEMOIMMEMMEMIUMOMMEMEMMEMEMMEMEM ERIMMIIIIMMOMOMFAMUMWASEAVAMMIAMPAMUMFAMUMMEMEMMINIMMEMEMEMEMEMEMMEM mmommummmmmumumummimmrmonmgminimnmmemnImmommommommommommmmmmmmommmom MEMMINEMEMMERUMUMPAIMMEMPAIVANKMPAMUMMAMMUMEMMIMIMOMMOMMEMMEMMMMEMEMEMM mmummommmmmomvumnmnmmardmummmiumwramnmmlimmmmmmmsmmommmmmmommommommmmm 1400 mmmmmuommmmwoommmmoommmmuumnnmmonmmEmmopraammrnAmmonrimmuummrnaormmmmorr.wmmrtwoummmmmoommmmuommmommommommmmmmoommmmmoommmmommmoommmmumm mmmmommimmommmammmmmramumgmrAmnmmammmilmummummommommmommommommommommm immommomumommmommmommamrmmeiromnmmummmwrmAmmummrmemmmonrmdrmArmAnmomrrmammommummummmmmoommmmommuommmmuommmoommmmmm mmmmommommommmumpAmnmgmramnommommommnmrmmommommummommmommommommommomm ImImIiMmMMmUEoMMmMMmEEoMMmMMmEEoMMmMMmIMoWOnAWNuAUmKMgIPmMA'AWAMAmMMmIUEAMmNImWAwPMrAIiUIoMWnEARmMAEUNmMUmEMuMHmUImANgMImEMuMMmEEmMMoMEmEMMmMMoEEmMMmEEoMMmMEmIMuNMmEmMoMEmOMmMmEMmMEMmImMUoEMMmMMm 1200 mmummommmmommmmionmramumrammramnommmummalimmmummommummmommommammommm MMENIIMMOIMMEMEMERTAPANWFAMPAIPMMUMMUMPAP2AMMEMEMEMEMEMEMMEMEMMIMMUM MMEMSEMEMEMMOMMIPAMFAMEMMP2MIPAMIMMOIMPAWAINIMMUMMEMMEMOMMEMMEMMEMMEEMM MMEMEMMEMEMMEMMEVANFAMEMIVAMPAMUERAMUMMIPAM2MMEMSEMEMIMMEMEMMEMEMMEMMEN mmummommmommommommommummummsmswumummmguammmnrmirmAummugmmmmmumummmmoerraimmuummmmoommmmuommmmoommmmoommmmoummmmommmmmommmoommmmuomm mmmmommommummummmigmmnmrwmummmmummairmmummilmmommommommommummommommmmm mmommommmommmmommramnmpAmummmm2mmmrmmummsrmmommommommommummummmmumm ImmIImImIoImImImIiImmImIoImImImImIuIrIimMu1.0m141m1m1g1m1.mMi1m1u1m2m1m:m0A1mm1i1m1m1o1m1m1m1m1om1m1m1o1m1m1o1m1m1mm1m1o1m1m1.1.1.1. 1000 INIMEMMEMM MMEMMEMEWAMUMMMUIMMEAMUMMINWEKIMAIMMMENUMMEMEMEMMIMMEMEMEME MOMMEMMEMENMEMMOMEMMUMMMIMMMOFAUUMMOVAMMFAIMMEMMEMMEMMEMMINIMMEMMOME MmENIIMMEMMIMMEMEMMKIIMMERVEAMIMMWAIMMIAMIIIMMENUMMEMEMMEMMEMMUMMEMEM IIMENMENNEMMEMEMEMMEILKMOWNIKMEMOIMANWIMARAWAIMMEMEMEMMINMEMMEMMUUMMEMMO MMMMEIMIMMEMMIMNEIMMMMIEIMMEMMUMMIMIIMMMUUMMMVIRUANVKAIMMMAOMIUNNWKESWWIARMAPNWWRIAPMMUEMMKMAUMMMEOMMEIMNMIEMMMMEIMMMMEMMUEMMMEEMMEMMEINN MMOMMEMMEMMOMMEMMEMIUKMEMMUMMIIPAWAIMANUMMMPMEMMEMMMEMMEMEMEMMINIMMEMEM MOIMMEMMEMEMMIIMIMMIWAIMAMUMPAPWWWFAMUNKMPAVEMMEMEMMEMENUMEMMEMMIUMEM MMMEEEMMMMEEMMEMNENMIEMMMMIINNIEMMMMMIEMMMMIVkIdRMAWTIKMMMWAMIEMWMEEAMMMPUAUIMMMIFKAAVMIIIRMMEENMNEEMMMIONMIMMEMMEMMEMMEMMEMMEEMMMMEIMNMIEMMMM 800 IMMMENNMIUMMEMMINIMMEMAUmi.AMMEWRAMPANKAWAYMIMMENNMEMEMMIMMEMEMMEMINIM MEMEMMEMEMMOMMEMMEMMUMWINAVAMMEAMMIKMEAWAMWMMINIMMEMINIMMUMMEMINIMMEMM mommommommommummmommmorwmmramumgmramwmniummmommommmmommmommmmommmm MMENIMUMMMEMMEMMEMMEMIMMOMMEWFAMUNKMEAVWMEVAMEMEMMEMMEMMUMMEMEMEMMEMM 1E1M1M1E1M1M1E1M1EMMMEMMEMMEEMMEMMEMMEMMEAMIMMEEMMMAEWaEWANNWRUAMMPUAMRMAMPEAAMVAMMAIWNAFIMIMMEEMMMEEMMMEEMMEEMMEMMIEMMIMMEOMMEMMEMMEEMMEMMEEMM 1 M 111111111111111111110IIIIIIIIIIIIIIIIIIM111111111111111111111111 600 !1 8118116311111111110111511111511111MIREBillEalil IF 111111111111111111/11=1111:11111111=11111111111111111111 'IIII 1 I. II. 1.1.1:M1A1U11M1E1N1E1M11M1E1W11M1t1r1A1M0M1A1M1I1M1U1N:KEM1P1A2S1U1M0MII0I1I1I1M1O1M1M1E1M1M1E1M1E1M1M1U1M1M1E1M1E1N IUIM illiiiiiiiiiiiiiiiiiiiiiiiiiiM009511111111111111111111111 400 mmmmimummommommommummmmummummommommommommommommmmmummukmgmrooirmdiirriimmuummariimgirradpraummmmmommmmuommmmmmoommmmmoommmmommommommmmmm IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIM:11112121:11:1111111=IIIIIIIIIIII UMMEMMEMIMMENNOMMEMEMMEMMMEMMIIMAWWWWWWWWWWWINEMEMMEMEMOMMEMEMMUM MIINMEMNMUEMMMMEIMIOIIMMMIOIMMMMEEMMEMMEEMMMMMEOMMMMEIMIMMEMMEMMEMMEEEMLMWOWWPKAAMRMMEEAMAMMVAIWIAMRMEUMIMMEMMIENMIEMMMMEEMMMMEEMEMMEMMEEMMMEEMM MMUMMEMEMMEMMOMMMUMMIMMENNIMMEMMMAKMMMIMPANWIMUMMMEMMEMMEMMOMMEMINIMM MIIMMEMMMEMMEMEMMIMMEMEMMEMUMENNIMMAKMEMANWMUMAIIMMEMENMEMMMEMMINIMMEM MMEMMEMEMEMMINIMMIMINIMMINIMEMIIMEMMIWIRAPAWAIMUMECEMEMMUMMEMMEMMUMMUMM 200 MMIENMEOMMMMEMMEEMMMEOMMMMEEMMMMEEMMMMEENMNOEMMMMEUMMMMEEMMMEMNNEEMNMNEWMAEPWWAWWAASSUUMMEPMAOIIMMMMEEMMMEEMMMMEINUIMMMMMEEMEMMEMMMMIIUUMM NIMMINIMMINIMMEMMEMEMEMOIMMIMMMEMEMIUMINWAMUMEAMUMKOMMINMEMEMMEMMEMEMMIO 1111111111MMEMMEMMEMMINIMMEEMOMMEMEMMEMMEMEMEMSNUMPANUMAIViMMIMMEMEMEMMINIMM ImMMEImIMIoNMMmIEEmMMIMoEMEmMMMmEOMmMMIIoMIMMmEMOmMMMoMEMmEMEMmMMUoMMMmEEMMmMEEmEMNMmMUMuEMEmMMMmMMEEoEMMmMMMEmEIMuMUEmMMMMmEEEmMMMoMMImEENImMMMMoEMEmMEMmMIMoEWEOmMWRmEIdoMRWmMAIMmMMUIuIOMmWUMmOPiMMAgMMFaEAAmAiTwDMImAMWuMMImUMImMMIiUEMamMMrmEUiMmNmMuIpEmMAMimMMimEE;oMMmMM MIIIIMMEMEMMIONINIMMONIMMEMEMMEMMEMEMENMEMMIUMhZ.WFIOUWAWIKMFAVAVAPIn mmommmmummmmummmmummmmommummommommmmmommommhz_,mummrAmmimparmrwmurmin mmummmmoommmmmmuommmmoommmmmomommommommmmoommmmoummmmmomommmmoommmmummmmoommmmoummmmmmoommmmmmoamimmmEmrmaommmmramrummrmwummwmrmiommr -20 -16 -12 -8 -4 0 +4 +8 D -C GRID VOLTAGE AT START OF DISCHARGE IN VOLTS K -69087-72A87 4-1 3-48 GL -5544 ETI.282 PAGE 4 8-48 ANODE TERMINAL CAP CI -5 NC 8-48 (9M) Filing No. 8850 FILAMENT TERMINALS CONTROL -GRID TERMINAL BOTTOM VIEW OF BASE K -69087-1A147 OUTLINE GL -5544 THYRATRON 10-26-48 Electronics Deportment GENERAL ELECTRIC Schenectady, N. Y. GL -5632 DESCRIPTION AND RATING ETI.292 PAGE 1 12-48 THYRATRON DESCRIPTION The GL -5632 is a three -electrode inert -gas -filled designed for ignitor firing, and for motor -speed and thyratron with negative control characteristic welding control. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes 3 Electrical Data Filament voltage Filament current, Ef = 2.5 volts Minimum cathode heating time Anode -to -control -grid capacitance Control grid-cathode capacitance Deionization time, approximate Anode voltage drop 2 5 volts - 9 2 amperes 30 seconds 2 uuf 14 uuf 1 millisecond 10 volts GENERAL ELECTRIC GL -5632 ETI.292 PAGE 2 12-48 TECHNICAL INFORMATION (CONT'D) Mechanical Data Type of cooling Mounting position Net weight, maximum convection any 6 ounces MAXIMUM RATINGS, Absolute Values Maximum peak anode voltage Inverse Forward Maximum cathode current Peak Average Surge (maximum duration 0.1 second) Overload, less than 3 seconds Maximum negative control -grid voltage Before conduction During conduction Maximum positive control -grid current Average (averaging time, one cycle) Commutation factor* Ambient temperature limits 1250 volts I -5- 49 750 volts 30 amperes ° 2 5 amperes - 300 amperes 3 7 amperes 100 volts 10 volts 0 1 ampere 0 67 -55 to +70 C * Commutation factor is the product of the rate of current decay in amperes -per -microsecond just prior to commutation and the rate of inverse voltage rise in volts -per -microsecond just after commutation. 1400 // VARIABLE RANCE 1200 GL -5632 ETI-292 PAGE 3 12-48 (Page 4 only, revised 8-50) GL -5632 C ONT ROL CH ARA 1:TE RIS -ICS S HAD ED AIR EA SHOWS R ONCE OF C1-IARACTERIST IC 1000 800 6 OG 400 200 77727772/4774774 -12 K -69087-72A248 -10 -8 -6 -4 -2 0 2 4 6 D -C CONTROL -GRID VOLTAGE AT START OF DISCHARGE IN VOLTS 8 7-18-48 GL -5632 ETI-292 PAGE 4 12-48 (Page 4 only, revised 8-50) .566" -t .007" CAP NO. CI -5 ANODE TERMINAL KOUTLINE THYRATRON GL -5632 -*-136-74D1'IA. MAX. .400" MIN. BASE NO. A4 -10 64- MAX. 8-50 (11M) GRID TERMINAL ANODE RETURN AND FILAMENT CENTER -TAP TERMINAL FILAMENT TERMINALS N-15124AZ 111 Revised drawing. 4-28-50 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. DESCRIPTION AND RATING GL -5948 ET -T1121 PAGE 1 ¶ 1 2-57 HYDROGEN THYRATRON PULSING SERVICE INTEGRAL GAS RESERVOIR POSITIVE CONTROL TRIODE TYPE The GL -5948 is a hydrogen thyratron for pulsing applications which require a tube that will give dependable operation under the stringent operating conditions encountered in radar modulator and other pulsing service. The ability of this tube to carry high peak cur- rents and to withstand voltages as high as 25,000 volts combine with the short deionization time to assure satisfactory tube performance in the class of service for which this thyratron is designed. The tube is also suitable for operation without negative bias; a feature which adapts it for use in service requiring zero -bias operation with positive triggering pulses. Another advantage which ensures freedom from failure due to gas cleanup is the use of a hydrogen reservoir within the tube to supply gas to compensate for what is consumed during operation. This reservoir also enables the user to adjust the pressure within the tube to the most suitable value for the service desired. The tube ratings make it especially suitable for pulsing magnetron and other oscillators with power inputs up to 12.5 megawatts. GENERAL ELECTRIC ¶Supersedes pages 1 and 2 dated 6-54 GL -5948 ETT1121 PAGE 2 12-57 TECHNICAL INFORMATION GENERAL Electrical Cathode-Indirectly Heated The Cathode is tied to the Heater Midpoint Heater Voltage Heater Current, Ef = 6.3 Volts Cathode and Reservoir Heating Time Reservoir Heater Voltage* Reservoir Heater Current, Ef = 4.5 Volts Direct Interelectrode Capacitance Grid to Anode Grid to Cathode Anode Current Time Jitter Deionization Time, approximate Ionization Time, approximate t Anode Voltage Drop Grid Drive Pulse Duration Minimum Bogey Maximum 6 6.3 6.6 Volts 27 30 33 Amperes 15 Minutes 2.5 4.5 5.5 Volts 3 4.5 6 Amperes 45 uuf 50 uuf 0.01 0.02 Microseconds 50 Microseconds 1 Microsecond 400 Volts 10 Microseconds Mechanical Type of Cooling-Convection Cooling of Anode Lead by Forced Convection Permissible, but there shall be no Air Blast Directly on Bulb. Mounting Position-Vertical, Base Down Net Weight, approximate 4% Pounds MAXIMUM RATINGS, Absolute Values Maximum Peak Anode Voltage Inverse § 25,000 Volts Forward¶, minimum supply voltage = 5,000 volts d -c 25,000 Volts Maximum Cathode Current Peak Average 1,000 Amperes 1.0 Amperes Maximum Averaging Time Operation Factor A 1 Cycles 9 0 x 109 Maximum Negative Control -Grid Voltage Before Conduction 650 Volts Maximum Rate of Rise of Anode Current 5,000 Amperes per Ambient Temperature Limits Microsecond -50 to +75 C * The optimum reservoir voltage for operation at maximum tube voltage, maximum peak and average tube currents, and at a repetition corresponding to the rated operation factor is inscribed on the base of the tube and must be held within t 5 percent. Applications involving operation at other conditions will necessitate the redetermination of the optimum reservoir voltage. t The time interval between the point on the rising portion of the grid pulse which is 26 percent of the peak unloaded pulse amplitude, and the start of the anode current pulse. I Driver pulse measured at tube socket with thyratron grid disconnected: amplitude = 700 volts minimum, 2,000 volts maximum, above 0; time of rise = 0.35 microseconds maximum, measured from 26 percent to 70 percent of peak value; grid pulse duration = 2 microseconds minimum, measured between 70 percent of peak on rising side to 70 percent of peak on falling side; impedance of drive circuit = 50 to 200 ohms. § The minimum inverse anode voltage permissible is 5 percent of the peak forward voltage, and the maximum is 5,000 volts during the first 25 microseconds following the anode pulse exclusive of a spike of 0.05 microseconds duration. ¶ Instantaneous starting is not recommended. However, in cases where it is necessary to apply anode voltage instantaneously the maximum permissible forward starting voltage is 18,000 volts peak. The power -supply filter should be designed to limit the rate of application of this voltage to 450,000 volts per second. AThe peak forward anode voltage x pulse repetition rate x peak anode current. ID Denotes an addition. X-RAY WARNING NOTICE If the GL -5948 is operated at anode voltages in excess of 16 kilovolts, x-ray radiation shielding may be necessary to protect the user against possible danger of personal injury from prolonged exposure at close range. For further information consult the following references or other standard texts on the subject: (a) X -Ray Protection Design, Handbook No. 50. National Bureau of Standards, Washington, D. C. (b) X -Ray Protection, Handbook No. 60. National Bureau of Standards, Washington, D. C. The above references are available from the Superintendent of Documents, Government Printing Office, Washington 25, D. C. DESCRIPTION AND RATING GL -6011/710 ET -T 1377 PAGE 11' 12-57 THYRATRON TRIODE TYPE NEGATIVE CONTROL CHARACTERISTICS QUICK -HEATING CATHODE INERT -GAS AND MERCURY-VAPOR The GL -6011/710 is a three -electrode, inert -gas and mercury-vapor thyratron with negative control characteristics for use in all control applications. The GL -6011/710 combines the desirable temperature characteristic of gas tubes, maximum ratings over a wide temperature range, with the long life of mercury tubes. Another feature is a quick -heating filamentary -type cathode only 20 seconds are required for the cathode to reach operating temperature. Because of these features the GL -6011/710 is especially suitable for service in ignitor -firing, regulated -rectifier, and similar industrial applications. GENERAL TECHNICAL INFORMATION Electrical Cathode-Filamentary Minimum Filament Voltage 2.37 Filament Current at 2.50 Volts 7 Heating Time 20 Anode to Control -Grid Capacitance Control -Grid to Cathode Capacitance Deionization Time, approximate Ionization Time, approximate Anode Voltage Drop Critical Grid Current, Ei,= 220 v d -c. Bogey 2.50 9 2 12 1000 10 15 Maximum 2.63 Volts 11 Amperes Seconds //O. Microseconds Microseconds Volts 10 Microamperes GENERAL ELECTRIC tSupersedes pages 1 and 2 dated 8-56 GL -6011/710 ET -T 1 377 PAGE 2 1 2-57 TECHNICAL INFORMATION (Cont'd) Mechanical ®Mounting Position-Any Position from Vertical, Base Down, to Horizontal Equilibrium Condensed -Mercury Temperature Rise Above Ambient At Full Load, approximate At No Load, approximate Net Weight, maximum 30 C 25 C 5 Ounces MAXIMUM RATINGS, Absolute Values Maximum Peak Anode Voltage Inverse Forward Maximum Cathode Current * Peak Average Maximum Averaging Time Fault Maximum Duration Maximum Negative Control -Grid Voltage Before Conduction During Conduction Maximum Positive Control -Grid Current * Average Averaging Time Condensed -Mercury Temperature Limits 1500 Volts 1500 Volts 30 Amperes 2 5 Amperes 5 Seconds 250 Amperes 0 1 Seconds 500 Volts 10 Volts 0 25 Amperes 1 Cycle -40 to +80 C * The anode and grid -circuit returns should be made to pin No. 2. However, they can be made to the center tap of the filament transformer. ®Denotes a change. ET -T515 Electronics Department GENERAL ELECTRIC The 5663 is a four -electrode inert -gas -filled thyratron with a negative control characteristic which is independent of ambient temperature over a wide range. The small size and lightweight construction are features which especially adapt the tube to control and relay applications where space and weight are important factors. MAXIMUM RATINGS, Absolute Values Maximum Peak Anode Voltage Inverse Forward 500 Volts 500 Volts Maximum Cathode Current Peak Average Surge (maximum duration 0.1 second) Maximum Averaging Time 100 Milliamperes 20 Milliamperes 1 Ampere 15 Seconds Maximum Negative Control -Grid Voltage Before Conduction During Conduction Maximum Positive Control -Grid Current Average, Averaging Time One Cycle 200 Volts 10 Volts 2 Milliamperes Maximum Negative Shield -Grid Voltage Before Conduction During Conduction Maximum Positive Shield -Grid Current Average, Averaging Time One Cycle 100 Volts 5 Volts 2 Milliamperes Maximum Heater -Cathode Voltage Limits Ambient Temperature Limits -90 to +25 Volts -55 to +90 C GENERAL Electrical Data Heater Voltage Heater Current, Ef = 6.3 Cathode Heating Time Required Minimum Bogey 5.7 6.3 0.150 10 Maximum 7.0 0.180 Volts Amperes Seconds Anode -to -Control -Grid Capaci- tance 0.1 uuf Control -Grid -to -Cathode -and - Shield -Grid Capacitance 1.5 uuf -2 - Electrical Data (Cont'd) Minimum Deionization Time, E00 . -6 volts Rg : 10,000 ohms, Ib = 20 ma Ionization Time, approximate Anode Voltage Drop, typical Critical Grid Current, at Ebb = 220 v rms, Ec = cut-off Mechanical Data Type of Cooling - Convection Mounting Position - Any Net Weight, maximum Bogey 35 0.5 11 Maximum Microseconds Microseconds Volts 2 Microamperes 0.3 Ounce 5663 TYP I CAL CONTROL CHA RACTEE I ST I C SHADED AREA S HOWS RANGE 0 F CHARA TERIST C SHIELD- GRID VOLTAGE =0V TS 500 400 300 200 100 -6 -5 -4 -3 -2 -1 0 D -C CONTROL -GRID VOLTAGE AT START OF DISCHARGE IN VOLTS 56 63 AV ERAG E :RID CH ARACTER I ST I C S DU RING ANOD E C NDUCT I ON SH ELD .GR I ) VC LTAGE = 0 VOLTS Ef = 6 3 V DLTS D -C 3 VOLTAGE IN VOL TS -4 _2 D -C AN ODE CURRENT = MA 10 20 30 40 -.4 .6 -8 -1 .0 -1.2 -1.4 1.6 -1.8 -2.0 A ER GE RI)C AR CT RI TI S FO A OD CuND SH I LD- RIi VO TAG = Vi TS Ef 6.: VI TS - 05 1 15 -.2 .25 - 35 45 .5 -.55 / MAX. DIA I-4 MAX MINIATURE BUTTON 7 -PIN BASE E7-1 1-2" MAX NOTE: SEATED HEIGHT MEASURED FROM BASE SEAT TO BULB -TOP LINE AS DETERMINED BY A RING GAGE OF I D HEAT ER HEATER GRID* 2 0,110 CATHODE NO CONNECTION G RIDA-iI 0146.°0A N E BASING DIAGRAM OUTLINE 5663 GL -5855 DESCRIPTION AND RATING ETI-316 PAGE 1 3-51 THYRATRON DESCRIPTION The GL -5855 is a three -electrode inert -gas -filled thyratron with negative control characteristic for control applications. The high commutation factor, 200, permits this tube to be used in motor control without the need for snubber circuits and without the occurrence of gas clean-up. Other features of this tube are its ability to operate at maximum ratings over a wide temperature range and its quick -heating cathode. Only one minute is required for the cathode to reach operating temperature. Because of these and other design features the GL -5855 is well suited for use in general control circuits. TECHNICAL INFORMATION GENERAL Electrical Data Heater voltage Heater current at 2.5 volts Heating time required Anode -to -control -grid capacitance, typical Control -grid -to -cathode capacitance, typical. . Deionization time, approximate Ionization time, approximate Anode voltage drop, typical Minimum 2.37 60 Bogey 2.5 34 50 25 1000 10 16 Maximum 2.63 volts 37 amperes seconds uuf uuf microseconds microseconds volts GENERAL ELECTRIC GL -5855 ETI-316 PAGE 2 3-51 TECHNICAL INFORMATION (CONT'D) Mechanical Data Type of cooling-convection Mounting position-any Net weight, maximum 2M pounds MAXIMUM RATINGS, Absolute Values Maximum peak anode voltage Inverse Forward 1500 volts 1500 volts Maximum cathode current Peak Average Surge (maximum duration 0.1 second) Maximum averaging time 150 amperes 12.5 amperes 2000 amperes 15 seconds Maximum negative control -grid voltage Before conduction During conduction 250 volts 10 volts Maximum positive control -grid current Average (averaging time one cycle) Commutation factor* Ambient temperature limits 0.5 ampere 200 -55 to +70 C * Commutation factor is the product of the rate of current decay in amperes -per -microsecond just prior to commutation and the rate of inverse voltage rise in volts -per -microsecond just after commutation. Th GL -5855 CONTROL CHARACTERISTIC SHADED AREA SHOWS RANGE OF CHARACTERISTIC GL -5855 ETI-316 PAGE 3 3 51 1600 1400 1200 1000 800 600 400 200 K -69087-72A388 -n - 6 -12 -8 $ +4 +8 +12 D -C GRID VOLTAGE AT START OF DISCHARGE 1 N VOLTS 10-17-50 G L- 5 8 5 5 ET16 PAGE 4 3-51 OUTLINE GL -5855 16 8 I 13"4, In 32 DIA. HOLE ANODE TERMINAL I 4 -4 1064 -1332! GRID TERMINAL 6 34.14! -4 64+ 3 114 DIA. #6-32 SCREW 3".1. 32 FILAMENT TERMINALS ENLARGED VIEW AT A SHOWING GRID TERMINAL N21551AZ 3-51 (Mt., Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 10-20-50 DESCRIPTION AND RATING GL -6011/710 ET -T1377 PAGE 1 fi 12-58 THYRATRON TRIODE TYPE NEGATIVE CONTROL CHARACTERISTICS QUICK -HEATING CATHODE INERT -GAS AND MERCURY-VAPOR The GL -6011/710 is a three -electrode, inert -gas and mercury-vapor thyratron with negative control characteristics for use in all control applications. The GL -6011/710 combines the desirable temperature characteristic of gas tubes, maximum ratings over a wide temperature range, with the long life of mercury tubes. Another feature is a quick -heating filamentary -type cathode-only 20 seconds are required for the cathode to reach operating temperature. Because of these features the GL -6011/710 is especially suitable for service in ignitor -firing, regulated -rectifier, and similar industrial applications. GENERAL TECHNICAL INFORMATION Electrical Cathode-Filamentary Minimum Filament Voltage 2.37 Filament Current at 2.50 Volts 7 Heating Time 20 Anode to Control -Grid Capacitance Control -Grid to Cathode Capacitance Deionization Time, approximate Ionization Time, approximate Anode Voltage Drop Critical Grid Current, ED= 220 v d -c Bogey 2.50 9 2 12 1000 10 15 Maximum 2.63 Volts 11 Amperes - Seconds - - Microseconds Microsecondsolts 10 Microamperes GENERAL ELECTRIC tSupersedes pages 1 and 2 dated 12-57 GL -6011/710 Et -T1377 PAGE 2 12-58 TECHNICAL INFORMATION (Cont'd) Mechanical ®Mounting Position-Any Position from Vertical, Base Down, to Horizontal Equilibrium Condensed -Mercury Temperature Rise Above Ambient At Full Load, approximate At No Load, approximate Net Weight, maximum 30 C 25 C 5 Ounces MAXIMUM RATINGS, Absolute Values Maximum Peak Anode Voltage Inverse Forward Maximum Cathode Current * Peak Average Maximum Averaging Time Fault Maximum Duration Maximum Negative Control -Grid Voltage Before Conduction During Conduction Maximum Positive Control -Grid Current* Average Averaging Time Condensed -Mercury Temperature Limits 1500 Volts 1500 Volts 30 Amperes 2.5 Amperes 5 Seconds 250 Amperes 0.1 Seconds 500 Volts 10 Volts 0.25 Amperes 1 Cycle -40 to +80 C * The anode and grid -circuit returns should be made to pin No. 2. However, they can be made to the center tap of the filament transformer. ®Denotes a change. SINGLE-PHASE ELECTRONIC -WELDER RATING MAX PEAK FORWARD AND INVERSE ANODE VOLTAGE=1500 VOLTS DEMAND CURRENT MEASURED WITH FULL CONDUCTION DURING EACH HALF CYCLE AVERAGING TIME=5 SECONDS 30 25 20 15 I0 8 6 5 AO 50 60 70 80 90 100 DUTY CYCLE IN PERCENTAGE (2 TUBES IN INVERSE PARALLEL) K -69087-220A87 6-26-58 RECTIFIERS Recommended Types and Selection Chart ET-Tl 508 Page 1 10-58 Classification Average Amperes Anode* Peak Amperes Peak Inverse Volts Cathode Volts Amperes Tube Type 1.25 5.0 10,000 5.0 7.5 GL -872-A (Jumbo 4 -pin base, A4-29) GL -8008 (Super -jumbo 4 -pin base, A4-18) 10.0 15,000 2.5 15.0 5000 Half -wave, Mercury vapor 4.0 16.0 10,000 5.0 10.0 GL -575-A (Jumbo 4 -pin base, A4-29) GL -673 (Super -jumbo 4 -pin base, A4-18) 5.0 4.5 GL -5558 5.0 10.0 GL -5561 (Welder -control Service) 5.0 20.0 20,000 5.0 19.0 GL -869-B 6.4 40.0 3000 5.0 10.0 GL -5561 (Continuous Service) 10.0 40.0 22,000 5.0 30.0 GL -857-B 75.0 450 16,000 5.0 65.0 GL -870-A Half -wave, High -vacuum 1.25 5.0 75,000 16.0 19.1 GL -5973 (See Kenotron Section) * Values listed are maximum values and do not apply for all types of application. Refer to data sheet for detailed information. ELECTRONIC COMPONENTS DIVISION GENERAL ELECTRIC Schenectady 5, N. Y. APPLICATION DATA ETI-140 PAGE 1 4-45 GENERAL*ELECTRIC KEN0TRONS ETI-140 PAGE 2 4.45 DESCRIPTION The kenotron is a high -vacuum thermionic tube mentals of operation, ratings, classes of tubes, ap- in which no means is provided for controlling the plications, maintenance and operation as well as unidirectional current flow. the qualities which render these tubes particularly The succeeding paragraphs describe the funda- useful to industry. FUNDAMENTALS 0 F THE KENOTRON A kenotron consists of two electrodes, an anode and a hot cathode, located in spaced relationship within an evacuated container. Due to the elevated temperature of the cathode, negatively charged electrons are emitted from its surface and will flow to the anode (or plate) only when the anode is at a positive potential with respect to the cathode. Since the flow of electrons constitutes an electric current and takes place in one direction only in a kenotron, this tube is particularly useful for application to rectifier circuits. When an alternating voltage is applied to a kenotron and the resulting pulsating unidirectional current is used to charge a capacitor which in turn supplies the load circuit, a nearly uniform supply of direct current is obtained. Kenotrons have no rotating parts and are therefore quiet in operation. They occupy a relatively small space and are light in weight considering the amount of power which they are rated to handle. Kenotrons possess advantages over gas or vapor filled tubes when very high voltages are to be rectified as the high degree of vacuum to which they are exhausted results in practically perfect insulation on the inverse cycle when the anode is nega- tive. Since a kenotron does not depend on an internal vapor pressure for its operation, it is less sensitive to changes in ambient temperatures than gas- or vapor -filled tubes. The use of pure -tungsten or thoriated - tungsten filaments as the source of electrons permits a minimum of delay between the application of filament voltage and plate voltage. DEFINITIONS OF HIGH - VACUUM TUBE RATINGS General When the terms used in the rating of high vacuum tubes are considered, it is important to realize that the application of the limits and values given for a particular tube depends upon the operating conditions. Any nominal rating can apply only to one set of conditions and not to all the conditions encountered in practice. The cathode or filament information is given in terms of normal heating voltage. A current figure to indicate transformer rating, is also given. The filament or cathode, except in unusual cases, should always be operated at this rated voltage rather than at rated current and the voltage should be adjusted so that the normal fluctuation in line voltage averages around this point. Normally, when this is done, a plus or minus variation of five per cent heating voltage is allowable. KENOTRON RATINGS In addition to filament voltage and filament current ratings, maximum ratings are given for peak inverse voltage, peak anode current and average anode current for rectifier operation. The maximum peak inverse voltage is the highest instantaneous voltage that a kenotron will safely withstand in the direction opposite to that in which it is designed to pass current. The maximum peak anode current is the highest instantaneous current which the filament is designed to deliver at full rated filament voltage. The maximum average anode current is the highest average or d -c value of current which the tube is rated to carry at full rated filament voltage and beyond which the tube may be damaged due to excessive plate dissipation. Some types of kenotrons are given additional maximum ratings for surge limiting operation which include filament voltage, peak forward anode voltage, average anode dissipation, and a peak anode current minimum. Under this type of operation the tube is used to limit a surge usually of short dura- tion. The maximum peak forward voltage is the high- est instantaneous voltage that a kenotron will safely withstand in the direction in which the tube is designed to carry current. The maximum average anode dissipation is the highest average wattage which may be expended in the anode under this type of operation. The peak anode current minimum is intended as a guide to indicate the instantaneous anode current which may be expected under typical operating conditions. CLASSES OF KENOTRONS Kenotrons may be divided into two general envelope type. classes: 2. Water-cooled kenotrons with anodes which 1. Radiation - cooled kenotrons (sometimes are cooled externally by water circulation through cooled by immersion in oil) usually of the glass - a water jacket surrounding the anode. APPLICATION CIRCUITS# ETI-1 40 PAGE 3 In general kenotrons are useful in any application ability of the tube to withstand the open circuit A-45 involving the rectification of alternating current to or inverse voltage, as well as to its ability to pass provide a direct -current supply or for the suppression sufficient overload current in the forward direction of intermittent high -voltage surges. The kenotron without overheating. Electrons flow to the plate finds its greatest usefulness where the requirements with very high velocities so that time-lag effects call for high voltage at low current or where the are negligible for rectification voltages, even at the range of ambient temperature variations is wide. A typical example is the kenotron used in air filter applications. The kenotrons supply the high voltages necessary to filter the air by electrical precipitation. The air is ionized and the negatively charged dust particles adhere to plates positively charged by the kenotrons. The kenotron is less efficient at low voltages than highest power supply frequencies used in practice. The kenotron rectifier provides a means of obtaining a higher voltage d -c supply than can be conveniently obtained by other methods. The stability of these tubes with regard to power supply frequency and their small size and quietness of operation are added advantages. gas- or vapor -filled rectifier tubes, but will operate A number of rectifier circuits in which kenotron satisfactorily at peak inverse voltages far in excess tubes may be used are shown in Figs. 1-10. of those for which gas- and vapor -filled tubes are designed. When selecting a tube type for a particular application, consideration must be given to the #Circuits shown in ETI-140 are examples of possible tube applications and the description and illustration of them does not convey to the purchaser of tubes any license under patent rights of General Electric Company. FIGURE 1i E.I EAVG LOAD CURRENT ff WAVE FORM TUBE CURRENT EMAX 2 / A RA A, IMAX IMAX BIPHASE HALF -WAVE TWO ANODES ICYCLEICYCL+E---ii-1 2 ERMS RLIM/ AXI ili C EMAX IMAX / A. A. AA_ T RA EAVG BIPHASE FULL -WAVE FOUR ANODES VII Aill ERMS ICYCLE ICYCLE EMAX IMAX !MAX 4 . 441 iipj C THREE-PHASE HALF -WAVE THREE ANODES ..- g.u..,.i. IC CLE 1=INTER . .40 TRANSFORMER Cd els CO 41- EMAX IMAX ERMS [47-1 ; 0j, / ;0. ,,` li _i_ DOUBLE H - HALF -WAVE WITH INTERPHASE TRANSFORMER SIX ANODES H. ICYCLE 30 150c t -id ICYCLE I AX 2 ..150.1 1CYCLE ET1-140 PAGE 4 4 45 APPLICATION CIRCUITS (CONT'D) ER MS .___5,51_3 C 1.732 EMAX 991' 1MAX I AX THREE -PHASE FULL -WAVE SIX ANODES ERMS 611111 W mm 1111 Pr7 411.41 .. ti IR OP RL ii n (ear '. JZIAI i [CYCLE 4-(C4YCLE 1.732 MAX IMAX IMAX ir74i ,,,yy, 1 N 28 ilaNiii r.;SE.-M1147:A41AN1P8RATEURR E .A.W 0 WW W 1r 'P r 1 r nueaa ENO ERmrks , g gx F iiiik vilvA skyRAppAATuR E TElm-sgA-Tra S 5.-4,M ERMS at. I . SII en m EVAG 24111 4 (CYCLE t-'1 ICYCLE ogorer I.732EMAX IMAX V 7 IMAX , ,t v s I `4 ,,,, , f !CYCLE t ICYCLE ? rdikl%" EMAX 1M X M 4 dirAdi OA IMAX FOUR -PHASE HALF -WAVE FOUR ANODES Si HidiaaIlLl C +- I NTERP E TRANSFORMER DOUBLE -BIPHASE HALF -WAVE FOUR ANODES WITH OUADRATURE EXCITATION I CYitCLE C/CLE 1 imAxEmAx IMAX 2 L. A Ild. + --'1 !CYCLE 7C/CLlEill 10 rhI.s..O.2li 1 0m0i1.0..O.2R1O.11 SIX -PHASE HALF -WAVE 3 IX ANODES EMAX IMAX :WM CIyN ' I' ;10.1140 IMAX ?,1 A ; \ ; \ p I. ' 'CYCLE I C YtLE FIG. TUBE 1 (AVG) NO. LOAD 1 (AVG) 1 0.500 2 0.500 3 0.333 4 0.167 5 0.333 6 0.333 7 0..333 8 0.250 9 0.250 10 0.167 USEFUL RATIOS E-AVG E- INVERSE 0.318 E -MAX 0.450E-RMS 0.636 E- MAX 0.900 E- RMS 0.827 E- MAX 1.170 E- RMS 0.827 E- MAX 1.170 E-RMS 1.650 E- MAX 2.340 E-RMS 1.650 E- MAX 2.340 E-RMS 0.955 E- MAX 1.340 E- RMS 0.900 E- MAX 1.274 E-RMS 0.318 E -MAX 0.450 E- RMS 0.955 E -MAX 1.350 E-RMS E -MAX 3.140 E-AVG E -MAX 1.570 E- AVG V3 E -MAX 2.090 E-AVG Yr E -MAX 2.090E-AVG V- E -MAX 1.050 E-AVG NI E- MAX 1.050 E- AVG E- MAX 1.050 E- AVG 2.220 E- AVG 3.140 E-AVG 2.090E-AVG I- AVG 0.636 I -MAX 0.636 I -MAX 0.827 1 -MAX 0.827 1 -MAX 0.955 I -MAX 0.955 I -MAX 0.955 I- MAX 0.900 1- MAX 0.318 1 -MAX 0.955 1 -MAX ETI-140 PAGE 5 4-45 APPLICATION CIRCUITS (CONT'D) When a kenotron is placed in series with an alternating -voltage supply and the resulting pulsating current used to charge a condenser which in turn supplies a load, only one-half of the alternating voltage is used. Such a circuit while satisfactory in some cases is not efficient. In general, multiphase circuits utilizing both half cycles of the alternating voltage (fullwave operation) yield a higher average output voltage and current for a given tube size. The variation in the d -c output voltage known as the ripple is also considerably reduced with multiphase circuits. In some circuits tubes are operated in series to obtain higher average d -c output voltages than could be obtained with a single tube without exceeding the maximum rated peak inverse voltage of the kenotron. In other applications tubes are operated in parallel to provide greater d -c output current without exceeding the current rating of the kenetrons. The circuits shown in Figs. 1-10 as well as variations of them will be found useful in such applications as air filters, cable testing, smoke precipitaters, radio transmitters, x-ray and other electrophysical and electro-chemical uses requiring high direct voltage at moderate currents. Fig. 11 shows a circuit for testing high -voltage cable where extremely high voltage direct current is required. SURGE DETECTOR KENOTRON INDUCTION VOLTAGE REGULATOR 220 V. A -C A- C FILAMENT CONTROL RESISTOR K-9033569 Pg. 11 -Circuit for High -Voltage Cable Tester CABLE /UNDER TEST 12-30-44 ETI-1 40 PAGE 6 4-45 INSTALLATION Cooling Free circulation of cool air around the glass bulb should be maintained. High temperature air from other apparatus should be prevented from circulating around the tubes. If desired the tubes may be immersed in a tank of oil with the transformers. Electrical Filament power should be supplied from a filament lighting transformer insulated for the proper voltage, and provided with a secondary midtap for the plate circuit return lead. The filament excitation supply must be provided with suitable resistors or other regulating devices to apply the power to the filament gradually and to adjust it accurately during operation. The filament voltage should be measured directly at the filament terminals. The installation of all wires and connections should be made so that they do not lie on or close to the glass of the kenotron. An air space of approximately the length of the tube should be maintained between the bulb and any metallic body during operation. Otherwise, corona discharge may develop and result in puncture of the glass bulb. OPERATION Kenotrons should be operated within the maximum ratings given in the Technical Information* in order to obtain maximum tube life and performance. The ratings given in the Technical Information* prescribe two limiting operating conditions. The first, the maximum peak inverse voltage, is a value determined by the insulation between electrodes of the tube. This is the highest voltage that the tube will insulate on the half cycle when no currents are passing through the tube. Line surges, circuit capacitance, wave form distortion and the maximum peak voltage of the applied alternating voltage may cause the inverse voltage to exceed the maximum peak voltage rating. The second limiting value is the power dissipation of the anode which is determined by the d -c load current almost regardless of the voltage across the load. As the design of the circuit especially the amount of capacitance in the circuit, is a major factor in determining the amount of current avail- able in a given rectifier, oscilloscope measurements of this current should be made if any doubt exists as to the magnitude. If the kenotron is to be operated at full peak current ratings, it will be necessary to maintain exactly the rated filament voltage. If the peak current to be drawn is less than the full rated value, the allowable filament voltage regulation increases as the value of the peak current decreases. The following tabulation shows the reduction of the maximum peak current with reduced filament voltage : Filament Voltage Maximum Peak Current % of Rated % of Rated 100 100 95 65 90 40 85 25 80 10 Excessive anode temperature is an indication of abnormal voltage drop in the tube and is usually caused by low filament temperature. Filament voltage greater than the rated value, while increasing the maximum peak current available, will result in decreased tube life. Careful handling and conservative operation will be amply repaid by longer and more uniform tube life. *Note: The ratings and characteristics of a particular tube are given under Technica Information on the Description and Rating Sheet for that tube. 1-46 (3M) Filing No. 8850 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. DESCRIPTION AND RATING GL -5973 ET-T1038A Page 1 12-57 KENOTRON PLATE DISSIPATION -800 WATTS THORIATED-TUNGSTEN FILAMENT RECTIFIER AND LIMITER DIODE LOW VOLTAGE DROP 20 AMPERES AT 75 KILOVOLTS 1.25 AMPERES DC AT 40 KILOVOLTS The GL -5973 is a two -electrode high -vacuum tube for use as a rectifier or surge -limiting diode. Design features include a thoriated-tungsten filament and a low voltage drop which enable the tube to carry high average currents. In rectifier service the tube will operate at average currents as high as 1.25 amperes at 40,000 volts and one ampere at higher voltages. In limiter service ratings as high as 20 amperes at 75,000 volts apply. These ratings make the tube particularly suitable for use in radar as a charging diode to supply d -c power to magnetrons or as a limiter to restrict fault currents. Other applications include high -voltage power supplies in cable -testing service and smoke precipitators. GENERAL TECHNICAL INFORMATION Electrical Minimum Filament Voltage 15.2 Filament Current at 16 Volts 18.0 Filament Starting Current Filament Cold Resistance Filament Heating Time, before applying plate voltage 30 Tube Voltage Drop, Ib =5 amperes . 850 Interelectrode Capacitance Bogey 16 19.1 0.1 950 14 Maximum 16.8 Volts 20.2 Amperes 30 Amperes - Ohms - Seconds 1050 Volts GENERAL ELECTRIC Supersedes ET -T1038 doted 2-53 GL -5973 ET.T1038A PAGE 2 12-57 TECHNICAL INFORMATION (Cont'd) Mechanical Maximum Glass Temperature* Maximum Base Temperature Mounting Position-Vertical, Base Down Net Weight, approximate 300 C 150 C 3 Pounds MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS Rectifier Service Maximum Ratings, Absolute Values Peak Inverse Voltage Plate Current Peak Average Peak Inverse Voltage = 40 Kilovolts or Less Peak Inverse Voltage = more than 40 Kilovolts Average Plate Dissipation Peak Inverse Voltage = 40 Kilovolts or Less t Peak Inverse Voltage =more than 40 Kilovolts 75 Kilovolts 5 Amperes 1 25 Amperes 1 00 Amperes 850 Watts 800 Watts Limiter Service Maximum Ratings, Absolute Values Peak Inverse Voltage Peak Plate Current Average Plate Dissipation 75 Kilovolts 20 Amperes 800 Watts *Where tubes are enclosed or operated in close proximity to each other, forced -air cooling may be required to limit bulb and base temperatures to the allowable maximum. Maximum observed temperature of 1010 C at any point on the anode. Maximum observed temperature of 985 C at any point on the anode. Denotes an addition. X-RAY WARNING NOTICE If the GL -5973 is operated at anode voltages in excess of 16 kilovolts, x-ray radiation shielding may be necessary to protect the user against possible danger of personal injury from prolonged exposure at close range. For further information consult the following references or other standard texts on the subject: (a) X -Ray Protection Design, Handbook No. 50. National Bureau of Standards, Washington, D.C. (b) X -Ray Protection, Handbook No. 60. National Bureau of Standards, Washington, D.C. The above references are available from the Superintendent of Documents, Government Printing Office, Washington 25, D.C. TYPICAL FILAMENT CURRENT CHARACTERISTIC GL -5973 ET-T1038A PAGE 3 12-57 0 2 K -69087-72A380 4 6 8 12 14 FILAMENT VOLTAGE IN VOLTS 6 - 18 TYPICAL PLATE CHARACTERISTIC Ef =16 VOLTS 20 12-7-50 20 16- 12 8 4 0 K -69087-72A381 idoo 2000 3000 4000 PLATE VOLTAGE IN VOLTS 3-14-52 GL -5973 ET-T1038A PAGE 4 12-57 .800"± .007"DIA. .713" MIN. CAP C1-35 6-I" 8 MAX. DIA. 2 DIA. APPROX. ANODE TERMINAL I9S_+ 8 BASE A2-87 /7) 2-rDIA APPROX. UU N-21009AZ FILAMENT TERMINALS 11-25-53 ELECTRONIC COMPONENTS DIVISION GENERAL ELECTRIC Schenectady 5, N. Y. GL-5741 /FP -85-A DESCRIPTION AND RATING En -142A PAGE 1 5-51 KENOTRON DESCRIPTION The GL-5741/FP-85-A is a two -electrode tube tion-cooled. The cathode is a pure -tungsten filadesigned for use as a rectifier. The anode is radia- ment. RECOMMENDED FOR REPLACEMENT ONLY-USE GL -8020 FOR NEW APPLICATIONS *TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes 2 Electrical Data Cathode-Filamentary type, pure tungsten Filament voltage Filament current Voltage drop ( Ib =100 milliamperes) Interelectrode capacitance, plate -filament 10.0 volts 5 0 amperes 280 volts 1.8 micromicrofarads Mechanical Data Base-A4-10 Maximum over-all dimensions Length Diameter Net weight, approx Shipping weight, approx Mounting position Maximum glass temperature 8 inches 2A- inches 3 ounces 3 pounds vertical, with base down 150 C 'Partially revised. GENERAL ELECTRIC Supersedes ETI.142 dated 4-45 GL -5741 /FP -85-A ETI.142A PAGE 2 5-51 TECHNICAL INFORMATION (CONT'D) MAXIMUM RATINGS-Absolute Values Maximum peak inverse voltage Maximum peak anode current Average anode current 300 200 FP -85-A EMISSION CHARACTERISTIC 20,000 volts 100 milliamperes 20 milliamperes 100 90 80 70 60 50 40 30 20 10 9 8 7 6 5 4 3 2 5 K-6917414 6 7 8 9 FILAMENT VOLTAGE IN VOLTS I0 2-6-45 .5-GG o7"vb ei, .9-00 MIN. *OUTLINE GL-5741/FP-85-A KENOTRON 5" MAX I DIA. GL -5741 /FP -85-A ETI-142A PAGE 3 5-51 71. -ANODE TERMINAL CAP NO. CI -5 BASE NO, A4-10 K-8639604 1 New drawing. NC FILAMENT TERMINALS 5-24-48 Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 5-51 (11M) SPECIFICATIONS ETI -304 PAGE 1 SPECIFICATIONS KENOTRON GL -2B23 GENERAL 5-49 Equipment using this type should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-286. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS Test methods according to IRE Standards See Test Note Test Conditions Limits Min. Max Units Heater Current Plate Current * Plate Current Ef = 6.3 volts a -c Eb = 100 volts d -c Field Strength = 90 gauss; Eb = 100 volts d -c .. 275 325 13 19 .... 100 Field Strength Sensitivity 1 Field Strength 1, 2 Sensitivity 50 1.75 ...6.0 Note 1: Eb = 100 volts d -c; the field strength is adjusted for a plate current of 8.0 milliamperes. Note 2: The sensitivity of this point is equal to Pip/ (H =field strength) for small variations of H. * Not more than 10 per cent of the tubes may be outside the limits shown for this test. Milliampere a -c Milliampere d -c Microampere d -c gauss Milliampere per gauss 5-49 (3M) Filing No. 8850 r APPLICATION DATA ETI-146A PAGE 1 3-50 GENERAL ELECTRIC Supersedes ETI-1 46 dated 4-45. Only change on page 6 PHANOTRONS ETI-146A PAGE 2 3-50 DESCRIPTION A phanotron is a thermionic gas tube in which no means is provided for controlling the current flow. The gas used may be one of the inert gases such as argon, xenon, or helium, or the vapor pressure of a few drops of mercury. The presence of this gas neutralizes, by ionization, the electron space -charge around the cathode created by the electrons emitted from it. This space -charge, which is negative in effect and tends to drive the electrons back into the cathode, is one of the limitations on the amount of current a high -vacuum electronic tube can carry. Another limitation is the ability of the cathode to emit the electrons which comprise the unidirectional current flow. This factor, however, can be controlled by design of an electron emitting source satisfactory for the size of tube required. The absence of space -charge and its accompany- ing losses in the phanotron allows larger electrode spacing and smaller -size electrodes for a given current -carrying capacity than is possible with high vacuum tubes. The elimination of space -charge also permits the use of an electron -emitting cathode of higher efficiency and much larger current -carrying capabilities than otherwise could be used. A gas filled tube therefore, can carry much higher current than a high -vacuum tube of corresponding dimensions. The vapor pressure, however, is sufficiently low so that the anode can withstand, when negative, the voltages for which the tube is designed. The phanotron in its most usual form of a half wave rectifier has two electrodes, an anode and a cathode, although an additional anode may be added if a full -wave rectifier is desired. Since the phanotron will conduct in one direction only, it is most generally used in rectifier circuits. RATI NGS The ratings of gas -discharge tubes are given in terms of fundamental conditions on the tube itself rather than in terms of any circuit constants. Values for a particular tube are given on the individual tube descriptive sheets, (i.e., in terms of actual anode voltage and current.) The Maximum Peak Inverse Voltage is a rating which is common to both phanotrons and thyratrons. It is the highest instantaneous voltage that the tube will safely stand in the direction opposite to that in which it is designed to pass current and depends upon operation within the specified temperature range and within the surge current rating. It should be emphasized that the maximum rating of the tube refers to the actual inverse voltage and not to the calculated values. A cathode-ray oscilloscope or spark gap connected across the tube is useful in determining the actual peak inverse voltage. The Maximum Instantaneous Anode Current is the highest instantaneous current that a tube can safely conduct under normal operating conditions in the direction of normal current flow. The ability of a given tube to conduct this instantaneous current without excessive voltage drop will depend upon cathode heating and condition of the emitting surface. The Maximum Surge Current rating is a measure of the ability of a tube to withstand extremely high transient currents; it is also a measure of the stiffness of the anode circuit in which the tube will operate satisfactorily at rated tempera- ture and with maximum peak inverse voltage applied. This rating is intended to form a basis for equipment design in limiting the abnormal currents that occur during short-circuit conditions. It does not mean that the tube can be subjected to repeated short circuits without the probability of a reduction in life and the possibility of a failure. The Maximum Average Anode Current is a rating based on tube heating. It is the highest average current which can be carried continuously through the tube. In the case of a rapidly repeating duty cycle, this may be measured on a d -c meter. Otherwise, it is necessary to calculate the average current over a period not to exceed a definite interval of time which is specified for each design of tube. For example, in a two -tube, 60 -cycle rectifier feeding into an inductive load (so that the tube conducts approximately half of the time with a square wave) a tube with maximum instantaneous anode current of 15 amperes, a maximum average current of 2.5 amperes and an integration period of 15 seconds, can carry a series of 15 -ampere, 180 -degree blocks of current (half the time) for 5 seconds out of each 15 seconds, or a series of 7.5 -ampere, 180 - degree blocks of current (half the time) for 10 seconds out of each 15 seconds. In addition to the above ratings, there are a number of other tube characteristics. The voltage drop from anode to cathode is a characteristic which becomes important when the anode supply voltage is low, as it then becomes a large part of the working voltage. The typical voltage drop which may be encountered is included in the tube ratings, and the maximum in the Specifications. This includes the effect of temperature, change during tube life, and variation between individual tubes. Condensed -Mercury Temperature is the temperature which controls the mercuryvapor pressure and hence many of the tube characteristics. This is measured on the bulb just above the base, the point where the mercury vapor is condensing within the tube. ETI-146A PAGE 3 3-50 Satisfactory tube operation depends upon operat- cathode. Sufficient heating must also be allowed to ing within the specified temperature limits. When bring the condensed -mercury temperature within the tube is being heated it must be remembered limits. that the heating time specified refers only to the CLASSES OF TUBES Phanotrons are built in both glass and metal en- Mercury-vapor phanotrons are available for velopes. The higher voltage tubes use glass construc- those applications where the temperature can easily tion for ease of insulation. Metal -envelope tubes are be controlled. Where a wide range of ambient temadapted for panel mounting whereas the smaller perature will be encountered, inert -gas -filled tubes glass tubes are designed for applications where a should be used. socket mounting is desirable. APPLICATI ON CIRCUITS# Phanotrons are designed to cover a very wide cuits where it is desired to supply d -c power for range of voltages and currents and as a result are other electronic tubes. Figs. 1 to 10 below illustrate suitable for use as rectifiers in many types of elec- some of the more typical rectifier circuits as well as tronic applications. In addition to electronic con- companion wave forms and useful conversion ratios. trol applications, phanotrons may be used in cir- FIGURE WAVE FORM LOAD CURRENT TUBE CURRENT I E. FIL EAVG EMAX 2 / / I MAX I M AX BI PHASE HALF -WAVE TWO ANODES ICY L loci 00 ERMS RL(MAX I il / C .--, EMAX / E AVG (CYCLE Ilk AX v I As. B1 PHASE FULL -WAVE FOUR ANODES (CYCLE I CYCL E -3"-- ERMS i EMAX / (MAX MAX I r 30 150 THREE-PHASE HALF -WAVE 00 kr. INTER TRANSFORMER 6-1 rts 6-e THREE ANODES a (CYCLE ARMS EMAX I MAX [1*-t- e,,,, .,101, Ny\ " RL EAVV iii ,d: 2,/% DOUBLE H - HALF -WAVE WITH 1NTERPHASE TRANSFORMER SIX ANODES # I CYCLE !CYCLE I AX 2 , . e 150' # -i 1CYCLE # Circuits shown in ETI-146 are examples of possible tube applications and the description and illustration of them does not convey to the purchaser of tubes any license under patent rights of General Electric Company. EV-146A PAGE 4 3-50 APPLICATION CIRCUITS (CONT'D) ERMS 4 THREE-PHASE 1 EAVG FULL -WAVE SIX ANODES 1732 EMAX I MAX . .i..4 ICYGLE I AX (CYCLE pl. _... ERMS a oao_opo Iciii ..o, .gja, Nk_ r.' RL rl el 1 1.732 iimEMAX I MAX ; deo, i '1 I, 1APAP V \1 N B8 I ire XICAII: -iru VA -I PI TRANSFORMER E W ii A 1 a tflP ti 11. . . ... . 1 ERms .:, P rrl rvi P , gx -iI. Ftiirk- nvAii spcyRAzATuRE EXCITATION-EE S5c.n.11 SE ERMS Sal 4..,, EVAG 341 !CYCLE !CYCLE I.732EMAX I MA X I MA X /dr ftili011ty, , , z,:7;ft,sj f !CYCLE h f -41 'CYCLE EMAX IM 4 41. Kid A MAX FOUR -PHASE HALF -WAVE FOUR ANODES on_ 1a 11111;:1111t1a1w1111 C +- 1 NTERP E TRANSFORMER DOUBLE -BIPHASE HALF -WAVE FOUR ANODES WITH OUADRATURE EXCITATION 'CYCLE ICICLE EMAX I MA X II A A Ali; 0,rIMAX 2 A A HIfCY-C--L1E 1 I C CLEP1 I 10 . ,m . r.. 1.0..6..0..ii SIX -PHASE HALF -WAVE SIX ANODES EMAX , I MAX , 10 6ree I MAX A,, ,, ,,n, ICYGLE 1"11-1GYILE USEFUL RATIOS ETI-146A PAGE 5 3-50 FIG. TUBE I (AVG) NO. LOAD 1 (AVG) 1 0.500 2 0.500 3 0.333 4 0.167 5 0.333 6 0.333 7 0_333 8 0.250 9 Q250 10 0.167 E-AVG 0.318 E -MAX 0.450 E-RMS 0.636 E- MAX 0.900 E- RMS 0.827 E- MAX 1.170 E- RMS 0.827 E- MAX 1.170 E-RMS 1.650 E- MAX 2.340 E-RMS 1.650 E- MAX 2.340 E-RMS 0.955 E- MAX 1.340 E- RMS 0.900 E- MAX 1.274 E-RMS 0.318 E -MAX 0.450 E- RMS 0.955 E -MAX 1.350 E- RMS E- INVERSE E -MAX 3.140 E-AVG E -MAX 1.570 E- AVG W E -MAX 2.090 E-AVG NT E -MAX 2.090E-AVG -VW E -MAX 1.050 E-AVG NT E- MAX 1.050 E- AVG E- MAX 1.050 E- AVG 2.220 E- AVG 3.140 E-AVG 2.090E-AVG I-AVG 0.636I -MAX 0.636 I -MAX 0.827 I -MAX 0.827 I -MAX 0.955 I -MAX 0.955 I -MAX 0.955 I -MAX 0.900 I- MAX 0.318 I -MAX 0.955 I -MAX APPLICATION CIRCUITS (CONT'D) Another important application of the phanotron is to supply d -c power for automatic battery charging equipment designed to give voltage regulation over a wide range with a relatively constant current at a set limit. A battery charging circuit is shown in Fig. 11. In circuit design tubes are selected for specific applications by consideration of the ratings, including peak and average currents to be conducted and peak inverse voltages applied. When a tube has been chosen for the application, the Speci- fications should be consulted to determine the limits of operation. ELECTRONIC VOLTAGE REGULATOR (1)BATTERY[ 1 LOAD L=1 1 SUPPLY FG-280 P HA NOT RON TUBES FILAMENT TRANSFORMER K-9033806 ANODE TRANSFORMER Fig. 11 -Circuit for Phanotron Battery Charger 2-10-45 INSTALLATION Mechanical Phanotrons should be mounted in sockets or sup- only in a vertical position. A shock -absorbing ports of good quality with connections of sufficient mounting must be used if the tube is to be subjected current -carrying capacity, and should be operated to excessive vibration or shock. ETI-1 46A PAGE 6 3-50 Electrical The cathode should be operated preferably from an a -c source, and must assume operating temperature before electron current is drawn. An appreciable glow, when plate voltage is not applied, is an indication that the tube is exposed to radio frequency. Such a condition should be corrected; otherwise the tube life and performance will be adversely affected. Thermal When a mercury-vapor phanotron is first placed in operation, it is necessary to distribute the mercury properly before anode voltage is applied. This is usually accomplished by applying filament voltage long enough to distill the mercury into the cool- ing chamber of the tube. The location of the cooling chamber is indicated on the outline drawing by the words "controlling mercury temperature." The design of equipment should allow the tube to operate within the condensed -mercury temperature limits over the range of ambient temperatures to be encountered. When mercury-vapor tubes are subjected to low ambient temperatures or when it is desired to reduce the mercury -heating time some form of heat conserving enclosure should be used. This may be provided with thermostatically controlled shutters and/or heaters to bring the condensed -mercury temperature within the operating range. Heaters should be located so that the normal condensed mercury region always remains the coolest portion of the tube enclosure. OPERATION Cathode Circuit The cathode voltage should not deviate from the rated * value by more than five per cent. Filament voltage should be set so that voltage fluctuations give an average value equal to the rated filament voltage. Too low a filament voltage may result in a very short life or perhaps immediate failure due to loss of emission. Too high a voltage will shorten the life of the cathode somewhat. During stand-by periods the filament should be operated at normal voltage. A Where quadrature filament excitation is specified, the filament voltage should be 90 30 degrees out of phase with the anode voltage. Anode Circuit The peak inverse voltage applied to the anode should never exceed the rated* value. In the usual single-phase circuits, the peak inverse voltage, for sine -wave conditions may be taken as the total anode -transformer secondary voltage (rms value) multiplied by 1.4. The relations between the peak inverse voltage, the direct voltage, and the rms value of alternating voltage depend largely upon the individual characteristics of the rectifier circuit and the power supply. Line surges, keying surges or any other transient or wave -form distortion may raise the actual peak voltage to a value higher than that calculated from the sine -wave voltages of the transformer. AAdditional information not previously included. The instantaneous anode current experienced is affected largely by the characteristics of the output circuit, including a filter if one is used. The instantaneous tube current of full -wave rectifiers using a highly inductive output circuit may approach the d -c reading in the load circuit. If the output circuit is highly capacitive with respect to the tube, the instantaneous current in the tube may be many times the load current. Analysis of the individual circuit is necessary. The average anode current must not exceed the rated value. With a steady load this may be read directly on a d -c meter. In the case of fluctuating loads, however, the reading should be averaged over a period not exceeding the time shown under *Technical Information. The duration of the surge current shall not be greater than the time shown on the Technical In- formation. * The voltage drop from anode to cathode is so low that it has little effect on the complete circuit except when the anode voltage used is low; hence variations of tube voltage drop with life are not readily apparent. Where uninterrupted service is desired, the tube drop should be checked at regular intervals by means of a cathode-ray oscilloscope or other suitable means. This drop is one criterion of tube condition and a rapid rise from one test to the next may determine failure. *Note: The Ratings And Characteristics Of A Particular Tube Are Given Under Technical Information On The Description And Rating Sheet For That Tube. Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady. N. Y. 3-50 (11M) Filing No. 8850 DESCRIPTION AND RATING GL -575-A ET -T1477 PAGE 1 11-57 PHANOTRON HALF -WAVE MERCURY-VAPOR The GL -575-A is a half -wave, mercury-vapor inverse voltages, and to conduct at relatively low rectifier tube designed to withstand high peak applied voltages. TECHNICAL INFORMATION GENERAL Electrical ['Cathode-Filamentary Filament Voltage Filament Current at 5.0 Volts Heating Time Anode Voltage Drop, typical e Critical Anode Voltage Minimum Bogey Maximum 4.75 5.0 5.25 Volts 9.0 10.0 11.5 Amperes 30 .... Seconds 10 .... Volts 100 Volts Mechanical Type of Cooling-Convection Equilibrium Condensed -Mercury Temperature Rise Above Ambient At Full Load, approximate At No Load, approximate Mounting Position-Vertical, Base Down Net Weight, maximum 20 C 12 C 13 Ounces GENERAL ELECTRIC Supersedes ET1-244C dated 10-50 GL -575-A ET -T1477 PAGE 2 TECHNICAL INFORMATION (CONT'D) 11-57 MAXIMUM RATINGS, Absolute Values Maximum Peak Inverse Anode Voltage 10,000 15,000 Volts Maximum Cathode Current EPeak Quadrature Operation In Phase Operation 10.0 10.0 Amperes 7.0 6.0 Amperes El Average Quadrature Operation 2.5 2.5 Amperes In Phase Operation 1.75 1.5 Amperes Fault 100 100 Amperes Maximum Duration 0.1 0.1 Seconds Maximum Averaging Time 20 20 Seconds Frequency 150 150 Cycles per Second Condensed -Mercury Temperature Limits* +20 to +60 +20 to +50 C *Maximum temperature ratings for intermediate peak inverse voltages may be determined by linear interpolation. When this is done lower current rating applies. Denot es an addition. ®Denotes a change. _L- .400" MI N. .007" ../.":566" DIA. ANODE TERMINAL --- CI -5 CAP 23n 10-32 MAX. 32 MIN. MAX. 4 MIN. 2-160 MAX. O.D. ZONE FOR CONDENSED - MERCURY TEMP. MEASUREMENT FILAMENT & ANODE -RETURN TERMINAL i" I, A4-29 BASE (LAMENT TERMINAL NC BOTTOM VIEW N-21500AZ-Outline revised. ELECTRONIC COMPONENTS DIVISION GENERAL ELECTRIC Schenectady 5, N. Y. 12-30-57 DESCRIPTION AND RATING GL -673 ET -T1478 PAGE 1 11-57 PHANOTRON HALF -WAVE MERCURY-VAPOR The GL -673 is a half -wave, mercury-vapor rec- voltages, and to conduct at relatively low applied tifier tube designed to withstand high peak inverse voltages. GENERAL Electrical Cathode-Filamentary Filament Voltage Filament Current, at 5.0 Volts Heating Time Anode Voltage Drop, typical @Critical Anode Voltage TECHNICAL INFORMATION Minimum Bogey 4.75 5.0 9.0 10.0 30 10 Mechanical Type of Cooling-Convection Equilibrium Condensed -Mercury Temperature Rise over Ambient At Full Load, approximate At No Load, approximate . Base-Super-Jumbo 4 -Pin Bayonet, A4-18. Cap-Medium Metal, C1-5. Mounting Position-Vertical, Base Down @Net Weight, approximate. Maximum 5.25 Volts --11.5 Amperes Seconds Volts 100 Volts 20 C 12 C 13 Ounces GENERAL ELECTRIC Supersedes ETI-2438 dated 10-50 GL -673 ET -T1478 PAGE 2 11-57 TECHNICAL INFORMATION (CONT'D) MAXIMUM RATINGS, Absolute Values Maximum Peak Inverse Anode Voltage 10,000 15,000 Volts Maximum Cathode Current DPeak Quadrature Operation 10.0 10.0 Amperes In Phase Operation 7 0 6.0 Amperes D Average Quadrature Operation In Phase Operation ®Fault 2 5 2.5 Amperes 1 75 1.5 Amperes 100 100 Amperes Maximum Duration Maximum Averaging Time Condensed -Mercury Temperature Limits* 0 1 20 +20 to +60 0.1 Seconds 20 Seconds +20 to +50 C Maximum Frequency 150 150 Cycles per Second *Maximum temperature ratings for intermediate peak inverse voltages may be determined by linear interpolation. When this is done lower current rating applies. DDenotes an addition. eDenotes a change. 1-,-/->-----L--.566"±.007" DIA. 400 MIN. -A-ANODE TERMINAL 61-5 CAP 16 MAX. 10 I 16 MIN. 311 94 MAX. 31. 98 MIN. ZONE FOR CONDENSED MERCURY TEMP..0 MEASUREMENT ' FILAMENT & ANODE- RETURN TERMINAL FILAMENT TERMINAL T N.C. N.C. SUPER JUMBO 4- PIN BASE A4-18 BOTTOM VIEW N-21501AZ-Outliae revised ELECTRONIC COMPONENTS DIVISION 12.30-57 GENERAL ELECTRIC Schenectady 5, N. Y. DESCRIPTION AND RATING GL -857-B ET -T1503 PAGE 1 11-58 PHANOTRON The GL -857-B is a half -wave, mercury-vapor vapor tubes, together with other features of design rectifier tube for use in the high voltage field. The and construction assure maximum efficiency of low voltage drop characteristic inherent in mercury- operation in many different rectifier applications. TECHNICAL INFORMATION GENERAL Electrical Filament Voltage Filament Current at 5 Volts Cathode Heating Time Anode Voltage Drop Critical Anode Voltage Minimum 4.75 60 Mechanical Type of Cooling-Convection or Forced Air P Equilibrium Condensed -Mercury Temperature Rise above Ambient At Full Load, approximate At No Load, approximate Mounting Position-Vertical, Base Down ®Net Weight, maximum Bogey 5 30 15 Maximum 5.25 Volts 33 Amperes - Seconds - Volts 100 Volts 15 C 11.5 C 3.5 Pounds GENERAL ELECTRIC GL -857-B ET -T1503 PAGE 2 11-58 TECHNICAL INFORMATION (CONT'D) MAXIMUM RATINGS, Absolute Values Maximum Peak Inverse Anode Voltage ®Condensed -Mercury Temperature Limits Maximum Cathode Current Peak Average Maximum Averaging Time Fault Maximum Duration Maximum Frequency Convection 10,000 +25 to +60 40 10 30 400 0.2 150 Forced Air 22,000 Volts +30 to +40 C 40 Amperes 10 Amperes 30 Seconds 400 Amperes 0.2 Seconds 150 Cycles per Second EIDenotes an addition. ®Denotes a change. CI X-RAY WARNING NOTICE If the GL -857-B is operated at anode voltages in excess of 16 kilovolts, x-ray radiation shielding may be necessary to protect the user against possible danger of personal injury from prolonged exposure at close range. For further information consult the following references or other standard texts on the subject: (a) X -Ray Protection Design, Handbook No. 50. National Bureau of Standards, Washington, D. C. (b) X -Ray Protection, Handbook No. 60. National Bureau of Standards, Washington, D. C. The above references are available from the Superintendent of Documents, Government Printing Office, Washington 25, D. C. RATE OF RISE OF CONDENSED -MERCURY TEMPERATURE Ef = 4.75 VOLTS Ili .......... .7u.1m1m1.11111111I 1M1I1U1NdEimll 1in11H1I1 11011111111 R-;.F.10mmihnumn mu 14 IMMINIHMIMMMIENIMN' : in MEM 13.11311 H Atol. 12 1a11l1l1i1m1111o11m1111o011n11E111r11p11r11i1m1111a11r1namoolinjuirmilEr;-91111101p El 1111111111111111111 1111111910111911111101111 11111190 111101 11111 1111111111 0 1111111111111MMIffill II MI II ILI I I MI 11111 Mfill 111 iuIIII RiGit t; t idaa wil:;;;;;! 8I I 1111131101111111111111011111111 011111111 6 IMIIIMMEMMIMMIIIPIWIUMINIMI I El IIII M MI 111 llllilli1111 1111111 4 1111111111101111111111011 111111111 IIII I I I IIIIII 11.1111111 2 111111111111 5 1 0 15 20 K -69087-72A134 0 0 I 001 25 30 35 HEATING TIME IN MINUTES 0 I 40 45 I 0 0 50 55 60 4-10-47 CAP NO. CI - 10 7- DIA 8 MAX.. ANODE TERMINAL 2" DIA APPROX. GL -857-B ET -TI 503 PAGE 3 11-58 19121-:+811 ZONE FOR CONDENSED - MERCURY TEMP MEASUREMENT 4 TI DIA. APPROX. BASE NNOO.. FO -2 FI LAMENT TERMINAL K-4903593 APPROX THIS LEAD CONNECTED TO BASE SHELL FILAMENT & ANODE RE TURN TERMINAL 3 EI-i" 4 11"-i- I" 732-32 1-23-51 ELECTRONIC COMPONENTS DIVISION GENERAL ELECTRIC Schenectady 5, N. Y. DESCRIPTION AND RATING GL -869-B ET -T1504 PAGE 1 11-58 PHANOTRON The GL -869-B is a half -wave, mercury-vapor quired. The cathode is designed for economical, rectifier tube for use in broadcast transmitters and long -life operation. other applications where high d -c voltages are re - GENERAL Electrical Filament Voltage Filament Current at 5.0 Volts Cathode Heating Time Anode Voltage Drop Critical Anode Voltage TECHNICAL INFORMATION Minimum 4 75 60 Bogey 5.0 19 15 Maximum 5.25 Volts 21 Amperes . . . . Seconds .... Volts 100 Volts GENERAL ELECTRIC GL -869-B ET-Tl 504 PAGE 2 11-58 TECHNICAL INFORMATION (CONT'D) Mechanical Type of Cooling-Convection or Forced Air Equilibrium Condensed -Mercury Temperature Rise above Ambient At Full Load, approximate At No Load, approximate Mounting Position-Vertical, Base Down Net Weight, maximum 20 C 15 C 1 6 Pounds MAXIMUM RATINGS, Absolute Values Maximum Peak Inverse Anode Voltage Condensed -Mercury Temperature Limits Maximum Cathode Current Peak In -Phase Operation Quadrature Operation Average In -Phase Operation Quadrature Operation Maximum Averaging Time Fault Maximum Duration Maximum Frequency Denotes an addition. 10,000 15,000 20,000 Volts 30 to 60 30 to 50 30 to 40 C 10 10 10 Amperes 20 20 10 Amperes 2.5 2.5 2.5 Amperes 5 5 2.5 Amperes 30 30 30 Seconds 100 100 100 Amperes 0.1 0.1 0.1 Seconds 150 150 150 Cycles per Second X-RAY WARNING NOTICE If the GL -869-B is operated at anode voltages in excess of 16 kilovolts, x-ray radiation shielding may be necessary to protect the user against possible danger of personal injury from prolonged exposure at close range. For further information consult the following references or other standard texts on the subject: (a) X -Ray Protection Design, Handbook No. 50. National Bureau of Standards, Washington, D. C. (b) X -Ray Protection, Handbook No. 60. National Bureau of Standards, Washington, D. C. The above references are available of Documents, Government Printing Office, Washington 25, D. C. RATE OF RISE OF CONDENSED -MERCURY TEMPERATURE Ef =4.75 VOLTS GL -869-B ET -T1504 PAGE 3 11-58 25 20 15 10 miIu.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.umumimumummmnmuumuiuomumlmmmnmoummmwmmmommuomumoum.immmmnmMmmoiammuoummmmmmoommmuemmmuummmmummmmuumummmmmmmmmimuuummomommgmmmmmummuumumsmmmummuuummmmumimmmmmmumomummmoowmmmmmouoiummimmmmuuammmoemoumummmmumommppmmmummmmsnmmimmmmmmmmummummmmmommammmmnuuummummomummmoummmmummmmuimuumomimume.ommmmooumomomuonmuuuommouwmommmmwmumnamummmmumummmmmmmmimmmmmemmusmmmmimmmummmmmmuommmumamumummmummmmmomomumoummummiiumuuimmmuumummoummmmmumoiiummmumuumummmnmummmmimmmmmmmmuomummmmumsmmmmummmmomimummmmmunuomumimmmmomumommuiummim-mmmmomsomomuumummoumummimEmmmimmmmmeunmmooumoimmmummommmmmmmmmulmmmemmmmniumummmmmmommommmummmTmoommoumimuoumummumomomEmmmumomumimum=ummiomoEmmumummmmmiummmmmmimmmumueim.mmmmmmnmmommmmmmmmnmmmuumimim.nmimmmummmsmoiummmimaomEmeouuuuimummumu.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 5 MmmimMmoumEumumRmMmmiEmomnMomoMomImmmImomMuomMummEmmMmmomMomuEmmMmmuMmuuEmumMmmmMmmonIoUiirmMmnmMmmWumuAummmMmmMuwmEoamMummEmmMmmumEmoMumomEmnMmmmMumooEmMmommMmmmEuomoMmMmmuEmmmmMumuImNmumoImmmmMmuEmuMomumOmmImmmmMmeuMuuUmmmMmmmmEmEMuooMmmmEmmmMmmuMwuEmomMmmmoMmmmEmMuoumMmmmiEmMmmmuMuomEmmMmmmEmumuMmuEomMummmMmmumOmuImuMummmMmmuEmmMmmiEumiMsmomMmmmMmMumouEmimMuimlMmmi miummmmoomommmmmmmmmmomommiumummmmmmmmmwumomiamommmnmmmmmumuoummAmnmmmmmmammumomrmmonmwmwmdommAmmimummaummmmmmimmommmmmmmsomummomummommmmmmmmimumomnmmmomommmmmmumumommmnimmummnnmmomiuummmmmmmummmmmmomuommmmmmomummmmmmouummmmmmmoammmmmmmumimmmmuumuummmmmmmummmmmmmumoumummmmummmmmmunumuimimmmmmmmmmmowummommmummimmmmmnuummumumuommmmmmmmmummmiumuommnmmmmmmmsoumuommommmmmmmmmmoommuimmmmmummimmmuuummmummmmummmemmmoummmummmmwummmummmiamm wimimmunmrmum=wmmdmmmaaummmummmm:otxiumimwmmmuummwsumoimmmmmmmmmuoummmmmmmmmumiommmmemmmmmuummmmnummummummmmmummemmummmmmmommomammmmmmowuimmmnmmmmmuummummmmmmimumnimuummmmmmommmimommmmommmmomummmmommmmmumommmmummmmummummimmmnmmouummmmmmmmmimuummmmumummimummmmmummnmmusmmmimommmmummmmummmmmumommmummmmmmimuml 0 5 10 15 20 25 30 35 40 4S K -69087-72A133 HEATING TIME IN MINUTES 2-17-49 GL -869-B ET -T1504 PAGE 4 11-58 .713" BASE NO. CI -9 .eoon ±.D0I0A7. " ANODE TERM INAL i" 5-8 DIA. MAX. II" DI A. APPROX. 14l4u+-136" ZONE FOR CONDENSED -MERCURY TEMPERATURE MEASUREMENT BASE NO. A3-20 TUBE TYPE MARKING FILAMENT AND ANODE RETURN TERMINAL FILAMENT TERMINAL K-4909011 N.C. ELECTRONIC COMPONENTS DIVISION 9-26-50 GENERAL ELECTRIC Schenectady 5, N. Y. DESCRIPTION AND RATING GL -872-A ET -T1514 PAGE 1 12-58 PHANOTRON The GL -872-A is a mercury-vapor, half -wave rectifier for use in high -voltage rectifier circuits. TECHNICAL INFORMATION GENERAL Electrical Filament Voltage Filament Current at 5.0 Volts Cathode Heating Time Required Anode Voltage Drop, typical Critical Anode Voltage Minimum 4.75 30 Bogey 5.0 7.5 15 Mechanical Type of Cooling-Convection Equilibrium Condensed -Mercury -Temperature Rise Above Ambient At Full Load, approximate At No Load, approximate Mounting Position-Vertical, Base Down Net Weight, maximum Maximum 5.25 Volts 8.0 Amperes .. Seconds Volts 50 Volts 20 C 14 C 7 5 Ounces GENERAL ELECTRIC Supersedes ETI-15513 dated 3-50 GL -872-A ET -T1514 PAGE 2 12-58 TECHNICAL INFORMATION (CONT'D) MAXIMUM RATINGS, Absolute Values Maximum Peak Inverse Anode Voltage Maximum Cathode Current Peak Average Maximum Averaging Time Surge Maximum Duration Maximum Frequency Condensed -Mercury Temperature Limits 5000 10,000 Volts 5 0 5.0 Amperes 1.25 1.25 Amperes 15 15 Seconds 50 50 Amperes 0 2 0.2 Seconds 150 150 Cycles per Second +20 to +70 +20 to +60C .566"±.007" DIA. 5" MAX. r6 DIA. ANODE TERMINAL CI -5 BASE it. 2 ZONE FOR CONDENSED- frt MERCURY TEMP. MEASUREMENT BASE A4-29 NC FILAMENT a ANODE RETURN TERMINAL K-8639375 FILAMENT TERMINAL NC 8-2-49 ELECTRONIC COMPONENTS DIVISION GENERAL d ELECTRIC Schenectady 5, N. Y. GL-5558/FG-32 DESCRIPTION AND RATING EU-147C PAGE 1 5-51 DESCRIPTION The GL -5558/F G-32 is a half -wave, mercuryvapor rectifier for converting alternating current to direct current. It is adapted to applications where rectification of higher currents at lower frequencies and voltages is desired than is possible with high vacuum tubes. In comparison with high -vacuum PHANOTRON tubes the GL-5558/FG-32 has a relatively low and constant voltage drop which is an advantage in low voltage rectifier applications as it allows more efficient utilization of power and results in lower circuit losses. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Cathode-Indirectly heated Heater voltage Heater current at 5 volts Cathode heating time Anode voltage drop Critical anode voltage 4 Completely revised. Minimum Bogey Maximum 4.75 5.0 5.25 volts 4.5 4.9 amperes 5 - minutes 15 - volts 50 volts GENERAL ELECTRIC Supersedes ETI-1478 dated 10-47 GL -5558 /FG-32 ETI-147C PAGE 2 5-51 TECHNICAL INFORMATION (CONT'D) Mechanical Data Type of cooling-Convection Equilibrium condensed -mercury -temperature rise above ambient At full load, approximate At no load, approximate Mounting position-Vertical, base down Net weight, maximum 28 C 22 C 5 ounces MAXIMUM RATINGS, Absolute Values Maximum peak inverse anode voltage Condensed -mercury temperature limits Maximum cathode current Peak Average Surge (maximum duration 0.1 second) Maximum averaging time Maximum frequency 2000 5000 volts +30 to +80 +30 to +60 C 15 15 amperes 2 5 2.5 amperes 200 200 amperes 15 15 seconds 150 150 cycles per sec. GL -5558 'FG-32 RATE OF RISE OF CONDENSED MERCURY TEMPERATURE ABOVE AMBIENT 30 iiiiiiiiiiiiiimilffillinidniiiiiiMiliiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiitii MEEIONLIM..I.T. PE1OPuremmuomunmnoU..N..I..E..B...E...E..M....O.. NLIMPmii rn 25 111111111111111111ritialliMgrill La 20 MillifilandirPh1"414111"2"rm. 1.2!1.1112121.121111111 11111110011111111101111111111011101101111 CC 15 a. )- 011111111111101111111 11111111111111111111 cc 10 IMEDURIMPHERNINIMEMENERP MEMO RHUIPHIMMIRIMMUIMEHIMMIHNIMI 111011111111111i 111111 011111101111 Plir " 5 10 15 20 25 30 35 40 HEATING TINE IN MINUTES N-21534ZA 3-11-47 OUTLINE GL-5558/FG-32 PHANOTRON 400 MIN. .566" ± .°D?7A." ANODE TERMINAL 0I-5 GL -5558 /FG-32 ETI.147C PAGE 3 5-51 CONTROLLING MERCURY TEMPERATURE LEVEL BASE A 4-10 63+1 44 4 FILAMENT K-4373333 # NODE RETURN TERMINAL 10.41 CATHODE TERMINALS ). fG 10-15-45 Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 5-51 (11M) GL -8008 DESCRIPTION AND RATING ETI-256A PAGE 1 10-50 PHANOTRON DESCRIPTION The GL -8008 is a half -wave, mercury-vapor rec- voltages. The ratings are the same as those for the tifier tube designed to withstand high peak inverse 872-A. The 8008, however, has a Super -Jumbo voltages and to conduct at relatively low applied push -type base. TECHNICAL INFORMATION GENERAL DESIGN These data are for reference only. For design information refer to specifications. Electrical Data Filament voltage Filament current at 5.0 volts Cathode heating time required Anode voltage drop, typical Critical anode voltage Minimum 4 75 30 Bogey 5.0 7.5 15 Maximum 5.25 volts 8.0 amperes seconds volts 50 volts Mechanical Data Type of cooling-Convection Equilibrium condensed -mercury -temperature rise above ambient At full load, approximate At no load, approximate Mounting position-Vertical, base down Net weight, maximum Technical information completely revised. 20 C 14 C 7.5 ounces GENERAL ha ELECTRIC Supersedes EV-256 dated 12-45 GL -8008 ETI-256A PAGE 2 10-50 TECHNICAL INFORMATION (CONT'D) MAXIMUM RATINGS, Absolute Values Maximum peak inverse anode voltage Maximum cathode current Peak Average Surge (maximum duration 0.2 second) Maximum averaging time Maximum frequency Condensed -mercury temperature limits 5000 10,000 volts 5.0 5.0 amperes 1 25 1.25 amperes 50 50 amperes 15 15 seconds 150 150 cycles per second +20 to +70 +20 to +60 C OUTLINE .GL -8008 PHANOTRON .400" MIN. ± .007 .566" DIA. ANODE TERMINAL CI -5 7.34;i" 1e I 82±4 - 2156"MAX. DIA FILAMENT & ANODE RETURN TERMINAL FILAMENT TERMINAL CONTROLLING MERCURY TEMP. LEVEL '4 Ar.SUPER -F JUMBO 4 PIN BASE A4-18 N G NC BOTTOM VIEW 10-50 (11M) N-21502AZ Drawing revised. Tube Divisions, Electronics Department 9-7-45 GENERAL ELECTRIC Schenectady, N. Y. L -5561/D FE FT04N AN RATING ETI-148B PAGE 1 4-48 PHANOTRON DESCRIPTION The GL-5561/FG-104 is a half -wave, mercury-vapor rectifier for converting alternating current to direct current. It is suitable for applications where rectification of higher currents at lower frequencies and voltages is desired than is possible with high -vacuum tubes. In comparison with high -vacuum tubes, the GL-5561/FG-104 has a low and constant voltage drop which is an advantage in low -voltage rectifier applications since it allows more efficient utilization of power and results in lower circuit losses. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes Electrical Heater voltage Heater current Cathode heating time required Anode voltage drop, typical Critical anode voltage Minimum 4.75 300 Bogey 5.0 10.0 15 2 Maximum 5.25 10.75 50 volts amperes seconds volts volts Mechanical Data Type of cooling-convection Mounting position-vertical, base -down Net weight, maximum 1 GENERAL 0 ELECTRIC pound Supersedes ET1-148A dated 10-47 GL-5561/FG-104 ETW1488 PAGE 2 4-48 TECHNICAL INFORMATION (CONT'D) MAXIMUM RATINGS Continuous Welder -Control Service Service Instantaneous..40 Maximum peak inverse anode voltage . Maximum anode current ...3000 10,000 volts 16 amperes Average anode current. 6.4 4 amperes Surge anode current, for design only . 400 160 amperes Duration of surge current . 0.1 0.1 second Maximum time of averaging current 15 15 seconds Temperature limits, condensed mercury +40 to +80 +25 to +50 centigrade U 30 w c 25 z (OW Ft 20 ce cc< 15 GL -5561 /FG- 1 04 RATE OF RISE OF CONDENSED MERCURY TEMPERATURE ABOVE AMBIENT mime 11:1 Prniimpli "gill InikliiPkill1111 III' IN . 1.1. I... I A I >- 10 U CC zU) 5 6 0 IMPIlli111111111111111111111111111111111 IMMOMMM00111 1121111!!!!!!1 ihmumumommmumomm 111111111111111111111111111111111111111111i11111111111111 5 10 15 20 25 30 35 40 45 50 55 N-21540ZA HEATING TIME IN MINUTES 3.11.47 x-316 D IA' MAX. CAP*r3917 ANODE TERMINAL GL-5561/FG-104 ET1-14138 PAGE 3 4-48 CONTROLLING MERCURY TEMPERATURE II -4 4 SAS 04310 ------, HEATER TERMINAL CATHODE TERMINAL I 45° NOT USED ANODE RETURN a CATHODE TERMINAL K-4955993 OUTLINE GL-5561/FG-104 8-5-44 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 4-48 (9M) Filing No. 8850 FG-166 DESCRIPTION AND RATING En -149A PAGE 1 10-50 PHANOTRON DESCRIPTION The FG-166 half -wave, all -metal mercury-vapor ply 125 or 250 to 600 volts in capacities of 15 to 50 rectifier is capable of carrying peak currents as high kilowatts. The sturdy all -metal construction comas 75 amperes. It is suitable for rectifiers that sup- bines mechanical strength with simplicity of design. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes 2 Electrical Cathode-Filamentary type Filament voltage 2 5 volts Filament current, approx 100 amperes Filament heating time, typical 2 minutes Optimum phase of filament voltage with respect to anode voltage 90 degrees Peak voltage drop 9 volts Rise of tube temperature above ambient without forced -air circulation Average anode current 0 amperes Condensed mercury temperature 30 centigrade Temperature of side of tube 100 centigrade Average anode current 20 amperes Condensed mercury temperature 35 centigrade Temperature of side of tube 150 centigrade GENERAL ELECTRIC Supersedes ETI-149 dated 4-45 FG-166 ETI-149A PAGE 2 10-50 TECHNICAL INFORMATION (CONT'D) Mechanical Net weight, approx Shipping weight, approx Mounting position MAXIMUM RATINGS Maximum peak anode voltage 20 to 60 C condensed mercury 20 to 70 C condensed mercury Maximum anode current Instantaneous Average Surge, for design only Maximum time of averaging current Temperature limits, condensed mercury CONDENSED -MERCURY TEMPERATURE 20 C 12 40 C 10 60 C- 80 C 8 5 5 pounds 14 pounds vertical, with radiator down 1500 volts 800 volts 75 amperes 20 amperes 750 amperes 30 seconds +40 to +60 centigrade *OUTLINE PHANOTRON FG-166 17" FLEXIBLE ANODE TERMINAL 6 i4x 4 2 0 20 40 60 80 100 120 140 160 PEAK ANODE CURRENT 1 N AMPERES FG-166 PHANOTRON PEAK DROP VS PEAK ANODE CURRENT. AVERAGE VALUES MEASURED FROM FILAMENT TRANSFORMER MIDTAP TO ANODE K-6917484 2-10-45 Is' t -ti 15"+ I9-2 AMAX. 5" MAX. DIA. 10-50 (11M) ZONE FOR CONDENSED MERCURY TEMPERATURE MEASUREMENT FILAMENT LEAD CONNECTED TO ENVELOPE TUBULATION RADIATOR FILAMENT TERMINAL N21544AZ *Revised drawing Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 8-10-49 FG- 1 90 DESCRIPTION AND RATING ETI-150 PAGE 1 4-45 DESCRIPTION The FG-190 is a gas -filled all -metal tube for use as a full -wave rectifier at low voltages. The use of gas imposes a voltage limitation and tubes of this type PHANOTRON will not carry as high a voltage as mercury tubes of comparable size. They can, however, be operated in much lower ambient temperatures. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes 3 Electrical Cathode-Filamentary type Heater voltage Heater current, approx Heating time, typical Voltage drop, typical Pick-up voltage, either anode, typical 2 5 volts 12 amperes 5 seconds 8 volts 14 volts Mechanical Net weight, approx Shipping weight, approx Mounting position 6 ounces 4 pounds vertical, with leads down GENERAL ELECTRIC FG- 1 90 ETI-150 PAGE 2 4-45 TECHNICAL INFORMATION (CONT'D) MAXIMUM RATINGS Maximum peak inverse anode voltage Maximum instantaneous anode current 25 cycles and above Below 25 cycles Average anode current Surge anode current, for design only Duration of surge current Maximum time of averaging current Ambient temperature limits 175 volts 5 amperes 2 50 amperes 1 25 amperes 20 amperes 01 second 15 seconds -20 to +50 centigrade TUBULATI ON 1+6 1'' 2 7 MAX. 116 DIA. ,i3"MAX. T6 DIA. 5" 3" 16 16 4' ,+ 0"" 3 16 42 MAX. 1-46 (3M) Filing No. 6850 4-M LEADS WITH TERMINALS REMOVED FILAMENT ANODE K-5300039 I" -- 165" 4 7 ANODE FILAMENT fq FA 3" 8 .Ft, 45 64 OUTLINE FG-190 PHANOTRON Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 7-13-44 ----,, GL -869-B DESCRIPTION AND RATING ETI-154B PAGE 1 5-49 -,, PHANOTRON DESCRIPTION The GL -869-B is a half -wave, mercury-vapor rectifier tube for use in broadcast transmitters and other applications where high d -c voltages are required. Economy of operation and high over-all efficiency result from several unique design fea- tures incorporated in this tube. The design of cathode allows the further advantage of operation with either in -phase or quadrature filament excita- tion. In quadrature operation the filament and anode voltages are ninety plus or minus thirty degrees out of phase with each other. Such an arrangement, allowing uniform utilization of the cathode, results in greater uniformity of characteristics than is possible with other methods, and in long tube life. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Filament voltage Filament current at 5.0 volts Cathode heating time Minimum 4 75 60 Bogey 5 19 Maximum 5.25 volts 21 amperes seconds Anode voltage drop Critical anode voltage Technical Information changed throughout. 15 volts 100 volts GENERAL 0 ELECTRIC Supersedes ETI-154A dated 4-48 GL -869-B ETI.154B PAGE 2 5-49 TECHNICAL INFORMATION (CONT'D) Mechanical Data Type of cooling-Convection or forced air Equilibrium condensed -mercury -temperature rise above ambient At full load, approximate At no load, approximate Mounting position-Vertical, base down Net weight, maximum 15 C 20 C 1.6 pounds MAXIMUM RATINGS, Absolute Values Maximum peak inverse anode voltage Condensed -mercury temperature limits Maximum cathode current Peak In -phase operation Quadrature operation Average In -phase operation Quadrature operation Surge (maximum duration 0.1 second) Maximum averaging time Maximum frequency 10,000 15,000 20,000 volts 30 to 60 30 to 50 30 to 40 degrees C 10 10 10 amperes 20 20 10 amperes 2.5 2.5 2.5 amperes 5 5 2.5 amperes 100 100 100 amperes 30 30 30 seconds 150 150 150 cycles per second GL -869-B RATE OF RISE OF CONDENSED -MERCURY TEMPERATURE E,=4.75 VOLTS GL -869-B ET1.15411 PAGE 3 5-49 MIIIOIIINIIIIMIIUII MMEMEWMHIMMIIMIMINIMMIN11111101111111MEMMIMMIEIIIMIIIINIMNMIIIIIINIIMIMIHMMEIIMM1M1E1M1I1I 1M1U1M11111111111111111111M1111111111.111111111111111I1M1M1ME1M1 V) M11U1M111II1II1II1IM11E1M11II1II1I1II1II1M1M11IM11I1II1II1II1II1M1M11I1II1II1II1II5M11IM11II1IIMIII1II1I1II1II1M1M11II1IM11I11111111M11M1M1I1II1II1M1M1I1II1II1M1I1II1II1IN1I1M1I1III1II1II1II1IM11II1III1M1I1M1M11M1E11M11111111111.11M11M.1I1M1I1M1M11I1II1M1I 0LcLeI 25 MINI NOM N111111111111111111111111111111111111111MIEMMIUM111111111111111111M111111111111MMIIIIMIIIMMIMIIIIUNIIIIIIIIMMIIII NNW MEM 111.111111 111111111111111111111111MMIIIIIMIIIIIIIMIIIIIIM MUM MININNUIMM11111111111111 WIN MINIM 1011111111MINIIIIMMIIIMINNI z NMI MEM MEM 1111111M MI111111111111111111111IMME MIIIMINIIIM11111111111M MEM MINIIIIIMMIMINIMION1111111111111111111111M 1U1M11M1I1M11OMM11N1E11M11M11E1M1111111111111111M11IM11M1II1II1II1II1II1M1MIIMMIIIIIIIIIIII 111111M11E1M11I1II1N1I1M1M1MIIMMIIIEIIMNMIIIIIIIIIMMMIMIIIIN= LT, 20 MOM MUM MIIIIIIIIIIIIMMIIIIIM111111111111111111111111111IMMIIIIMMMIIIIM MEM IIIMMEN111111111111111111111111111111 MUM MIMI 11111111111111111111E1M11111111111111111IB11M111M11U11M111M11U11M111111111111111111111111111=111111111111111111111111111111M1111111IIMII1I1I1II1I1I1II1I1II1I1I1II1MMIININIIIMIIIIMIIIIIIIMMIMMINIINIIIMIMINIMINMIINMIMMIIIIIIIIIIIMII1II1I1II1I1I1II1I1I1II1I1I1M01M111II1II MUM NNW MEM Mi 1111111111111111111111111111M11111IMMI MOM IIIIIIMIIIIMIIIIIMIIMIIIIIIMIMIIIIIIM11111111111111111M111111111111111111111MMI MEM MEM EOii iiiiiONE NM MIME NEM MUM 11M111111111M111111111111111111MIMIIIMMIMIIIIIIMIMIIMIIIIIIIIIMIMM111111111111111111111111M 11111111111MIIIIMI 0 11111111111111111111111111MINIIIIIIIMMMIIIIMMIUMNI IIIIIMMIIIIIIIIIIIMIIIIIIIMM111111111111111111M111111111111M11111111111111M11111111MINI co 15 M1.11O111M1111N111I1M111I1N111IUM1 MINIMEIIIMMEMMII111111111111111MMINIIIIM mmmmmmmmmmmmmmmmmm LLI MEN MUM WWII 11111111111MIIMINIMIIIIMINIIIIIIIIM1110111111111111111.1111Mn. ce IIMINIONIM MEM 111111111111111111111M11111111M 1111111M111111M1111.1.: /111111111111M MEM IIIM1111111111111111M11111111111111111111111MMIIIIIIIIMIIIMPTAMMIIIIIIIIIIIIMM IMMINIM MEM MMIIIMINENIMIMIMIMIIENNMMIIMIIIIIMI IIIIIIIIIMIMMEMM MEM MEM Loti LU LU 10 11miM1m111E11o11Mm111m1O11i11Mnm111n111Iu1oI1I1ImmIMIIINwmMosEmNmMmiEniMmio1nm11n1iuu11mm1MmmMEuaMnrEnnNio1m1m1m.7m.u11unMmg1B1r1nmM1i1mu=11mm.11um11m1u1muMmMmINmuMnIu1i1mm11um11u1um1m11m1m1i1mi1n1ou11mmM11ImmMmEmmm1o1mu1im1sm1em1inm1su1u1umm11mm1uo1mmnMmMnuoImIimImIMen MIIINI1111111111111111111/415111111111111UNIMMIIIMIN 111111111111M1111111111111MMIUM IIMIKEM >- 111111111111111111111MIUMMIIIIIIIIMINIMM 111111M1111111111M111111111IIIIIEMIUM111111111111111111111M1111111111111111111111MI MI111110111111111111M11111111111M11111111111110111=111 1111111111111MIIIIMEN NUM NIMIIIIIIIIIIIIIIIIIIIIIIMMPAIIIMMEMIMM11111.11111111111111M11111111MINIIIIIIIIIIIIIIIIIMIMI MUM U MINIM 11111111111111111111111MW/111111111111MMEMIIIMINIMMIIIIIIII LU 5 Irning 11M111111111111111ME .....1.1.1U1U11M1IM1E111111111/4111111111111111111.1111111111111111111=1M11M111A11M111II1I1I0M111IN111I1M11E11M111M11IIIIIMMINIMIIMIIIIMIIIIIIIIIIMI 01111111111111111.111111111111111111111111111M M=NINMIM MMOEMNMMINIKmmdlmm NM IMIIIIIMINIM11111111111111111111111111111111111M1111111M11111111MNIMUIMME111111111111111111111111111MIM MINIIIINIMIIIII11111111111111111111111M1111M1111111111111111111111MMIIIIIIN MINIM MIIIIIIIIrdilM111111111111111111111111111111111MIIMMIIIMNIMIIIIIIMMEIMMININIMMIIIIIIIIIIMMIII11111111111111MMIIIIIMIN WHIM 1111111W1g11111111M 11111111111111111111111111111111IIMIIIIIIII IMMI1111111111111111MINIIIIIIIM111111111111111111111111111111111111111111111M MOM 111111111111111111111MOMMO11111111111111111MMINIMMI 0LU 0 11111111P "-//111111111MINEINMMUINNMEM MMIN MIME MEM 111111111111111.11111MIIIIIN MEIIINOM ZO 0 5 10 15 20 25 30 35 40 45 HEATING TIME IN MINUTES K -69087-72A1 33 2-17-49 A New curve. GL -869-B ETI-154B PAGE 4 5-49 800" ±D°7" DIA. .713" UfiJ.1 ,,t ANODE TERM INAL IL BASE NO. C1-9 5gIn DIA. MAX. 11" DI A. 2-16 APPROX. ZONE FOR CONDENSED-MERCURY TEMPERATURE MEASUREMENT -F- 4 BASE i NO. A3-20 144-II ± I6- TUBE TYPE ..% MARKING 1 FILAMENT AND ANODE RETURN TERMINAL FILAMENT TERMINAL K-4909011 EIRevised outline. 5-49 (10M) Filing No. 8850 OUTLINE GL -869-B PHANOTRON Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 2-17-49 GL -872-A/872 DESCRIPTION AND RATING ETI-155A PAGE 1 4-48 PHANOTRON DESCRIPTION The GL -872-A/872 is a half -wave, mercury- peak inverse voltages, and to conduct at relavapor rectifier tube designed to withstand high tively low applied voltages. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes Electrical Cathode-Filamentary type Filament voltage Filament current, approximate . Transformer power for design purposes Heating time, typical Peak voltage drop, typical 2 5 0 volts 7 5 amperes 50 watts 30 seconds 10 volts Mechanical Type of cooling Net weight Shipping weight, approximate Mounting position convection 1/2 pound 3 pounds vertical, base down GENERAL ELECTRIC Supersedes EV-155 dated 4-45 G1.43724% /872 ETI-155A PAGE 2 4-48 TECHNICAL INFORMATION (CONT'D) MAXIMUM RATINGS Maximum peak inverse anode voltage 150 cycles or less Corresponding condensed -mercury temperature limits Maximum peak inverse anode voltage 150 cycles or less Corresponding condensed -mercury temperature limits Maximum anode current Instantaneous, 25 cycles and above. Average Surge, for design only Maximum time of averaging current Maximum time of surge anode current 5,000 volts 20-70 centigrade 10,000 volts 20-60 centigrade 5 0 amperes 1 25 amperes 50 amperes 15 seconds 0 2 second .566 "+.00711DIA. 2 5" MAX. r6 DIA. ANODE TERMINAL CI -5 BASE U CONTROLLING MERCURY LEVEL --- Ft TT BASE A4 -29 U re+ I" 4 -4 T 4-48 (9M) Filing No. 8850 FILAMENT TERMINAL FILAMENT B FILAMEN SHIELD TERMINAL K-8639375 OUTLINE GL -872-A/872 PHANOTRON 3-17-47 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 0- APPLICATION DATA ETI-156 PAGE 1 4-45 GENERAL 0 ELECTRIC PLIOTRONS En -156 PAGE 2 4-45 DESCRIPTION A pliotron is a high -vacuum thermionic tube in damentals of operation, ratings, classes of tubes, which one or more electrodes are employed to con- applications, maintenance and operation as well as trol the unidirectional current flow. other qualities which render these tubes particu- The succeeding paragraphs will describe the fun- larly useful to industry. FUNDAMENTALS OF THE PLIOTRON The pliotron is a high -vacuum tube similar to the two -electrode kenotron. The difference lies in the addition of a grid or grids to control current flow to the anode (or plate). In a kenotron rectifier the amount of current which can be passed through the tube at a given positive plate voltage is limited by the building up of a negative space charge around the filament or cathode, caused by the electrons which are leaving it. If a positively charged grid is now interposed between filament and plate, this negative space charge is partially neutralized and more current is allowed to flow to the plate at the same plate potential. Conversely, if the grid is negatively charged, the current is decreased. If the grid is made sufficiently negative, the current flow can be completely cut off. Between the cutoff value of grid voltage and the maximum positive value of grid potential to which it is safe to go, the control of the grid over the plate current is continuous. Since the grid is located closer to the filament than is the plate, a given change in grid potential has a greater effect on plate current than an equal change of plate potential. Thus, the pliotron can be used to amplify voltage variations. If the variations of grid potential are maintained in the negative region, substantially no electrons can flow to the grid, so that it is possible to control considerable amounts of power in the plate circuit with the expenditure of very small amounts of power in the grid circuit. The pliotron can, therefore, be used as a very sensi- tive device. Since the pliotron can amplify power, it is pos- sible to make it generate sustained oscillations by feeding back a fraction of the power in the plate circuit to the grid circuit. Such an arrangement is commonly termed an oscillator. From the foregoing discussion, it can be seen that pliotrons may be used in a variety of ways. No one design is best fitted for all of these uses, each is designed for particular types of service, and a wide variety is available. Since a pliotron is exhausted to a high degree of vacuum, its operation is not limited by the vapor pressure of a condensable medium within and the permissible range of ambient temperature is thereby increased. Unlike gas -or vapor -filled grid -controlled tubes, the pliotron is designed to control both the starting and stopping of plate current and may be used to generate or control very high frequencies. It is, therefore, possible to obtain continuous control of plate current even with a positive d -c plate potential. DEFINITIONS OF HIGH -VACUUM TUBE RATINGS General When the terms used in the rating of high vacuum tubes are considered, it is important to realize that the application of the limits and values given for a particular tube depends upon the oper- ating conditions. Any nominal rating can apply to one set of conditions and not to all the conditions encountered in practice. For certain high -vacuum tubes two sets of ratings are given one designated as CCS (Continuous Commercial Service) and the other as ICAS (Intermittent Commercial and Amateur Service). The former are for use in applications where the prime consideration is reliability of performance and long life. The latter can be used in applications where the service is intermittent in nature, i.e., where the operating period does not exceed five minutes and where this period of operation is followed by a standby period of at least the same duration. Although ICAS ratings are higher than those recommended for CCS and permit the use of greater power they do result in a decrease in tube life below what may be expected with CCS operation. The cathode or filament information is given in terms of normal heating voltage. A current figure to indicate transformer rating is also given. The filament or cathode, except in unusual cases, should always be operated at this rated voltage rather than at rated current and the voltage should be adjusted so that the normal fluctuation in line voltage averages around this point. Normally, when this is done a plus or minus variation of five per cent heating voltage is allowable. The maximum plate voltage of a pliotron is the highest d -c plate voltage which the pliotron can safely withstand. Equipment using these tubes should be so designed and operated that under no conditions will this value of plate voltage be exceeded. It is, therefore, desirable, when selecting a pliotron for a particular application to determine the changes in filament voltage and plate voltage that may be caused by line voltage fluctuation, load variation and manufacturing variations in the associated apparatus. Then, choose an average value of plate voltage so that under the usual operating conditions, the maximum rating will not be exceeded. The grid ratings are given in terms of the maximum grid voltage and grid current that may be used for a particular class of service. The plate dissipation rating is determined by the safe operating temperature of the plate vehich in turn is usually determined by the degree of evacuation possible with the anode material used. In addition to these ratings there are a number of other tube characteristics. The amplification factor is the ratio of change in plate voltage to a change in control -electrode voltage under such conditions that the plate current remains unchanged and all other electrode voltages remain constant. It is a measure of the effectiveness of control -electrode voltage relative to that of the plate voltage upon the plate current. The grid -plate transconductance is the quotient of the in -phase component of the alternating current of the plate by the alternating voltage of the En -156 PAGE 3 -45 grid, all other electrode voltages being maintained constant. The resonant frequency is the frequency of the grid -plate circuit with the grid and plate of the tube connected together through the shortest possible lead. The ratings for a particular pliotron are given on the Description and Rating Sheet for that tube. Classes of Pliotrons There are three general classes of pliotrons: 1. Radiation -cooled pliotrons, usually of the glass -envelope type. 2. Forced -air-cooled pliotrons which usually have a radiator to aid in dissipating heat. Such tubes are cooled by an air flow directed against the radiator. 3. Water-cooled pliotrons in which the plate is cooled directly by a flow of water. APPLICATIO N CIRCUITS# Pliotrons are useful in most applications requiring the generation or amplification of audio- or radio -frequency voltages, as well as in many applications which require accurate measurement of small signal voltages and their amplification for control purposes. The great majority of pliotron applications are covered by six classes of operation designated as Class A audio -frequency, Class AB audio -frequency, Class B audio -frequency, Class B radio -frequency, Class C radio -frequency plated -modulated, and Class C radio -frequency amplifier and oscillator. All pliotrons are not necessarily recommended for each class of service. Some tubes are designed for only one or two classes of service while others may be rated for all types of service. A Class A amplifier is an amplifier in which the grid bias and alternating grid voltages are such that plate current in a specific tube flows at all times. This class of service gives a large ratio of power amplification but with relatively low efficiency and low output. A typical single tube Class A amplifier is shown in Fig. 1. grid voltages are such that plate current in a specific tube flows for appreciably more than half but less than the entire electrical cycle. This class of service produces a ratio of power amplification and an efficiency intermediate between a Class A and a Class B amplifier. (See Fig. 2.) A Class B audio -frequency amplifier is an amplifier in which the grid bias is equal approximately to the cutoff value so that for a specific tube, plate current flows for approximately one-half of each cycle with an alternating grid voltage applied. In this service two tubes are used in a "balanced" circuit, each tube conducting only half of the time. This class of service gives a relatively large ratio of power amplification with medium efficiency and output. Fig. 2 illustrates a typical push-pull circuit which may be used in Class A, AB or Class B amplifier operation. INPUT OUTPUT - INPUT OUTPUT O K-9033526 Fig. 2-Circuit Diagram of Push-pull Amplifier 11-15-44 K-9033523 Fig. 1-Single Tube Amplifier, Class A 11-15-44 A Class AB audio -frequency amplifier is an amplifier in which the grid bias and alternating # Circuits shown in ETI-156 are examples of possible tube applications and the description and illustration of them does not convey to the purchaser of tubes any license under patent rights of General Electric Company. A Class B radio -frequency amplifier is an amplifier in which the plate is supplied with unmodulated direct voltage, and the grid is excited by modulated radio -frequency voltage. Such an amplifier gives a relatively large ratio of power amplification with medium efficiency and output. A Class C radio -frequency amplifier-plate modulated, is an amplifier with the plate supply Fig. 2-Terman, F. E., Radio Engineering, P-30.5; McGraw-Hill Book Co., Inc., 1937 ETI-156 PAGE 4 4-45 voltage modulated so that the tube output is modulated radio -frequency. For this type of service the grid bias is approximately the same as for a Class C amplifier or oscillator. Assuming a value, P, of plate input power to be modulated, the amount of audmio frequency power to be supplied is equal to 2p where m is the modulation factor. For further in- formation consult the Description and Rating Sheet for the particular type tube in question. A Class C radio -frequency amplifier or oscillator has the grid bias appreciably greater than the cutoff value so that the plate current in each tube is zero when no alternating grid voltage is applied, and so that the plate current in a specific tube flows for appreciably less than one-half of each cycle when an alternating grid voltage is applied. Such an amplifier gives high efficiency and output with a relatively low ratio of power amplification. A typical example of a Class C amplifier is given in Fig. 3 which illustrates a direct -coupled Class C amplifier with fixed bias, capacitively coupled load and Rice neutralization (which is a method of neutralizing the effects of the interelectrode capacitance of the tube). Fig. 4 illustrates a neutralized Class C push-pull amplifier with grid -leak bias and an inductively coupled load. PLIOTRON K-9033524 NEUTRALIZING CAPACITOR 11-15-44 *Fig. 3-Direct-coupled Class C Amplifier with Fixed Bias, Capacitively Coupled Load and Rice Neutralization OUTPUT tion and Rating Sheet. The maximum ratings should not be exceeded if satisfactory performance and life are to be realized. The typical values given are not to be considered as ratings, because the tube may be used at any suitable condition within the maximum ratings to secure the required output. The output values are approximate tube outputs, i.e., tube input minus the plate loss. When useful output is calculated, circuit losses must be subtracted from tube output. For this reason the typical values of power output are not to be considered as ratings. The approximate values of grid driving power shown under typical operating conditions are calculated values for a particular instance only and do not include power lost in the circuit or in the bias resistors. It is advisable to provide sufficient driving power in excess of the circuit losses plus the minimum tube requirements in order to cover the different condi- tions of operation in the particular application. This is particularly true when the frequency is above that at which full plate input may be employed. It is of course understood that at all times the driving power must be such as not to exceed the maximum allowable peak grid voltage or the maximum d -c grid current. In general, radio -fre- quency circuits should be arranged to prevent parasitic oscillations so that the tube will not be subjected to excessive voltages and currents. The arrangement of apparatus adjacent to the pliotrons, particularly in the case of high -power or high -frequency applications, should be such that the glass envelope is not subjected to concentrated voltage stress. The above considerations in the design of radio - frequency circuits, such as the electronic heating and diathermy circuits to follow, will be repaid by increased operating efficiency. The electronic heating (or induction heating) circuits illustrated in Figs. 5 and 6 are typical of applications in which pliotrons are used extensively. In the coupled -grid circuit, Fig. 5, the voltage is developed across a coil inductively coupled to a portion of the resonant circuit. By proper connections this voltage can be phased nearly 180 degrees, but due to the resistance inherent in any inductance, this phasing must be corrected in many cases by adding a phase -correcting capacitor. r - RECTIFIER OSCILLATOR K-9033527 11-15-44 *Fig. 4-Neutralized Class C Push-pull Amplifier with Grid Leak Bias and Inductively Coupled Load When selecting a tube for a particular application and consequently a particular class of service, it is, of course, necessary to be certain that the requirements of the application are within the maximum ratings of the tube as given in the Descrip- *Reference for Figs. 3 and 4-Terman, F. E., Radio Engineering, P-322, McGraw-Hill Book Co., Inc., 1937 LINE K-9033804 L_ PHANOTRON HEATER COIL 2-2-45 Fig. 5-Basic Coupled -grid Oscillator Circuit as Used for Induction Heating In the Colpitts circuit (Fig. 6) the grid voltage is obtained by direct connection to the resonant circuit by splitting the capacitor into two series sections. If the plate -to -cathode voltage is impressed on one section (Ep), the voltage across the other RECTIFIER r OSCILLATOR LINE K-9033803 - PHANOTRONS HEATER COIL 2-2-45 Fig. 6-Basic Colpitts Oscillator Circuit as Used for Induction Heating section (Eg) will always be of opposite polarity, thus giving a 180 -degree phase angle. The Colpitts circuit of Fig. 6 has the advantage of greater stability than that of Fig. 5 since the capacitance ratio which determines Ep/Eg is always fixed, thus providing a "stiffer" voltage source as well as better efficiency because the phasing is more exact. However, the coupled -grid circuit of Fig. 5 affords a ready means of adjusting the amplitude of the grid voltage which is advantageous in some cases. Another important use of the pliotron is in diathermy. In these applications the pliotron is employed in an oscillator circuit to transmit high frequency waves which produce heat inside the human body. A circuit illustrating the use of the pliotron in a diathermy application is shown in Fig. 7 below. ETI-1 56 PAGE 5 4-45 STEP UP TRANSFORMER LI W LINE RECEPTACLE LINE SWITCH EARTH GROUND FOOT SWITCH RECEPTACLE K-9033585 (Courtesy of G. E. X -Ray Corporation) Fig. 7-Circuit of Inductotherm Unit with Surgical Attachment 2-2-45 CONVECTION -COOLED PLIOTRONS-INSTALLATION AND OPERATION INSTALLATION Mechanical Mountings must be of good quality and should be so installed as to minimize danger from impact. If the set is subject to vibration, a shock -absorbing suspension must be employed. Sets using more than one tube should provide adequate spacing between tubes so that adjacent portions of the bulbs do not operate appreciably hotter than the other sections. Electrical The filament should be operated preferably from an a -c source, although a d -c supply may be used. The filament supply should be designed to allow operation at rated filament voltage. The filament transformer shall have good regulation and should be designed for at least thirty per cent above rated filament wattage. The circuits should be arranged to prevent parasitic oscillations so that the tube will not be subjected to excessive voltages and current. The plate circuit should be provided with a protective device such as a fuse in order to prevent overheating caused by improper circuit adjustments or overloading. This device should remove the plate voltage instantly if the direct plate current reaches a value 50 per cent above normal. In rating pliotrons, certain values are given as maximum; that is the values beyond which it is unsafe to go from the viewpoint of life and performance. In order not to exceed the *maximum ratings, changes in plate and filament voltage caused by line -voltage fluctuation, load variation, and manufacturing variation of the associated apparatus must be determined. Then, an average value of plate voltage should be chosen so that under the usual operating conditions the maximum ratings will not be exceeded. In trying out a new circuit or when adjustments are being made, the plate voltage should be reduced in order to prevent damage to the pliotron or associated apparatus in case the adjustments are incorrect. ETI-1 56 PAGE 6 4-45 OPERATION General Maximum ratings and typical operating conditions are given on the Description and Rating Sheet covering the individual type of pliotron. The typical values given must not be considered as ratings, because the tube may be used at any suitable conditions within the maximum ratings. Class C Radio -Frequency Power Amplifier and Oscillator In this service, the plate input power is keyed, i.e., is on and off alternately in accordance with the characters of some code. During the "key -down" periods, the tube functions as an unmodulated radio -frequency power amplifier. The tube may be used also as an amplifier or oscillator without keying. In both types of service, the ratings given are for "Key -down" conditions. Certain methods of modulation may be applied to this class of service provided the modulation is essentially negative and the positive peak of the audio -frequency envelope does not exceed 115 per cent of the carrier conditions. Grid bias for Class C service may be obtained from a grid leak, from a battery, from a rectifier of good regulation, or from a self -biasing resistor by-passed with a suitable capacitor. With the grid leak method, the grid excitation must not be removed without also removing the plate voltage. Grid -bias values are not particularly critical, and correct circuit adjustment may be obtained with widely different values. FORCED -AIR-COOLED PLIOTRONS-INSTALLATION AND OPERATION INSTALLATION Cooling The air-cooling system for the anode consists of a blower with a suitable air duct leading to the fin cooler of the tube. The air flow required is specified on the Description and Rating Sheet for each type. The temperature of the incoming air should not exceed 45 C. Proper cooling must be provided to limit the glass temperature to not more than 150 C at the hottest point. Usually deflecting vanes diverting the outgoing air toward the terminal seals provide sufficient cooling. In some cases it may be necessary to provide a separate cooling system. This system may consist of a blower and an air duct of suitable cross-sectional area leading to a nozzle directing the air flow. The cooling air must not contain any foreign matter. The air-cooling systems should be properly installed to insure safe operation of the tube under all conditions and for this reason should be electric- ally interconnected with the filament and plate supplies to prevent the application of voltages to the tube without suitable cooling. Electrical Suitable meters should be provided for reading filament voltage, plate voltage and current and d -c grid current. A tube life recording meter (to read hours of operation) is also necessary. The installation of all wires and connections must be made so that they do not lie on or close to the glass of the tube. Otherwise, severe trouble may arise from corona discharge or increased dielectric loss which will result in almost certain puncture. The filament circuit carries a high current at low voltage. Therefore, precautions should be taken against loss of voltage and heating due to poor connections. The filament connectors particularly should be large and make good contact. For multiphase filament tubes it is essential that the connections for each type of filament voltage diagram* to prevent distortion and possible failure of the filament. The plate circuit should be provided with protective devices to prevent the tube from drawing a heavy overload. Plate series protective resistors should also be provided to protect the tube from excessive energy dissipation during instantaneous failure of insulation, within the tube or within the transmitter. The grid circuit should be provided with heavy conductors, carefully connected, in order to prevent overheating of the grid terminal due to r -f currents In Class C service, the bias voltage may be supplied by a grid leak, or by a combination of grid leak and generator, grid leak and rectifier, or grid leak and cathode -bias resistor suitably by-passed. The combination method is particularly suitable to reduce distortion, especially in plate -modulated operation. Since the grid -bias voltage for Class C service is not particularly critical, correct circuit adjustment may be obtained with values differing widely from those indicated for this service. The circuits should be arranged to prevent parasitic ocillations so that the tube will not be subjected to excessive voltages and currents. *Note: The ratings and characteristics of a particular pliotron are given on the Description and Rating Sheet for that tube. OPERATION ETI-156 PAGE 7 4-45 When a new tube is first placed in operation, it should be operated without plate voltage for fifteen minutes at rated filament voltage. After this initial preheating schedule, plate voltage can be applied. Operate for fifteen minutes at approximately onehalf the usual plate voltage. Full voltage may then be applied and the tube operated under the normal load conditions for a period of one hour or more. Every three months spare tubes should be given this preheating and initial operation schedule. The filament should be operated at constant voltage rather than constant current. From the viewpoint of tube life, it is usually economically advantageous to provide good regulation of the filament voltage. For example, if the filament is oper- ated continuously at six per cent above normal voltage, the evaporation life will be reduced to approximately one half. When a multiphase filament -supply voltage is used, the phase voltages must all balance within fifteen per cent during the filament starting period. During normal operation the phase voltages must never, even momentarily, exceed ten per cent unbalance. Maximum ratings and typical operating condi- tions are given on the Description and Rating Sheet. The amplifier classifications used are those given in the Report of the Standards Committee of the Institute of Radio Engineers. The output values given in the tabulation on the Description and Rating Sheet are approximate tube outputs under certain typical operating conditions. These must not be used as output ratings; circuit losses must be subtracted from the tube output in calculating the useful output. In determining the value of plate voltage for normal operation, the line voltage fluctuation, load variation, and maufacturing variations must be estimated so that the maximum rated values will not be exceeded. WATER-COOLED PLIOTRONS-INSTALLATION AND OPERATION INSTALLATION Cooling The water-cooling system for the anode consists, in general, of a source of cooling water, a water jacket, and a feed -pipe system which carries the water to and from the jacket. Proper functioning of the water-cooling system is of the utmost importance. Even a momentary failure of the water flow will damage the tube. It is, therefore, necessary to provide a method for preventing operation of the tube during such a condition. This may be accomplished by the use of water -flow circuit breakers, or interlocks, which open the filament and plate power supplies whenever the flow is insufficient or ceases. The rate of water flow given on the Description and Rating Sheet is usually sufficient for all types of service. Under abnormal conditions an increased rate of flow may be necessary to prevent overheating. Distilled water is recommended for cooling because it greatly reduces the probability of scale formation on the anode during life. Scale hinders proper transfer of heat from the anode to the water. The mineral content, flow, heat dissipation, temperature, etc., of undistilled water are so varied that no specific recommendations to prevent scale can be made. In general, water which shows a hardness greater than 10 grains per gallon should not be used. When forced -air cooling is called for on the Description and Rating Sheet a system should be used which consists of a blower with air ducts of proper cross-sectional area which supply air to suit- able air nozzles. In certain of the larger tubes (such as the 862-A and the 898-A both the bulb and the stem must be air cooled. In these tubes the nozzle which supplies air to the filament stem is incorporated in the base, and the nozzle which supplies air to the bulb is part of the water jacket and acts as a combination air nozzle and electrostatic shield. Tubes which require forced -air cooling on the stem only have an air nozzle incorporated in the cathode base. The system should be arranged so that the temperature of the glass is not more than 150 C at the hottest point. Even when forced -air-cooling is not called for on the Description and Rating Sheet, free circulation of air must be provided to limit the temperature of the glass to this value. When there is inadequate ventilation or where a tube is used at the higher frequencies, forced -air-cooling may be required. In such cases a small blower may be used with suitable nozzles directing the air to the areas where cooling is necessary. Electrical Suitable meters should be provided for reading filament voltage, plate voltage and current, and d -c grid current. A tube life recording meter (to read hours of operation) should also be provided. The installation of all wires and connections must be made so that they do not lie on or close to the glass of the tube. Otherwise, severe trouble may arise from corona discharge or increased dielectric loss which will result in almost certain puncture. The filament circuit carries a high current at low voltage. Therefore, the usual precautions should be taken against loss of voltage and heating due to poor connections. The filament connectors particularly should be large and make good contact. ETI-1 56 PAGE 8 4-45 For multiphase filament tubes it is essential that the connections for each type of filament voltage supply be made according to the circuit diagram to prevent distortion and possible failure of the fila- ment. The plate circuit should be provided with pro- tective devices to prevent the tube from drawing a heavy overload. Plate series protective resistors should also be provided to protect the tube from excessive energy dissipation during instantaneous failure of insulation, within the tube or within the transmitter. The grid circuit should be provided with heavy conductors, carefully connected, in order to prevent overheating of the grid terminal due to r -f currents. In Class C service, the bias voltage may be supplied by a grid leak, or by a combination of grid leak and generator, grid leak and rectifier, or grid leak and cathode -bias resistor suitably by-passed. The combination method is particularly suitable to reduce distortion, especially in plate -modulated operation. Since the grid -bias voltage for Class C service is not particularly critical, correct circuit adjustment may be obtained with values differing widely from those indicated for this service. The circuits should be arranged to prevent parasitic oscillations so that the tube will not be subjected to excessive voltages and currents. OPER ATION When a new tube is first placed in operation, it should be operated without plate voltage for fifteen minutes at rated filament voltage. After this initial pre -heating schedule, plate voltage can be applied. Operate for fifteen minutes at approximately onehalf the usual plate voltage. Full voltage may then be applied and the tube operated under the normal load conditions for a period of one hour or more. Every three months spare tubes should be given the preheating and initial operation schedule discussed above. The filament should be operated at constant voltage rather than constant current. From the viewpoint of tube life, it is usually economically advantageous to provide good regulation of the filamant voltage. For example, if the filament is operated continuously at 6 per cent above normal volage, the evaporation life will be reduced to approximately one-half. When a three-phase or six -phase a -c filament supply voltage is used, the phase voltages must all balance within 15 per cent during the filament starting period. During normal operation the phase voltages must never, even momentarily, exceed 10 per cent unbalance. Maximum ratings and typical operating conditions for each recommended class of service are given on the Description and Rating Sheet. The amplifier classifications used are those given in the Report of the Standards Committee of the Institute of Radio Engineers. The output values given in the tabulation on the Description and Rating Sheet are approximate tube outputs under certain typical operating conditions. These must not be used as output ratings; circuit losses must be subtracted from the tube output in calculating the useful output. The approximate anode dissipation may be calculated from the following expression: n(T2 - T1) P (kilowatts) = (4 ) in which (T1) is the known initial temperature of the cooling water in degrees centigrade, (T2) the temperature of the water at the water jacket outlet in degrees centigrade, and (n) the water flow in gallons per minute. In determining the value of plate voltage for normal operation, the line voltage fluctuation, load variation, and manufacturing variations must be estimated so that the maximum rated values will not be exceeded. *Note: The ratings and characteristics of a particular pliotron are given on the Description and Rating Sheet for that tube. 1-46 (3M) Filing No. 8850 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL-5742/PJ-7 DESCRIPTION AND RATING ETI-15713 PAGE 1 4-51 PLIOTRON DESCRIPTION The GL-5742/PJ-7 is a three -electrode tube designed for use as a class A, B, or C amplifier. The anode is capable of dissipating 10 watts, and cooling is accomplished by radiation. The cathode is a thoriated-tungsten filament. Maximum ratings apply up to 6 megacycles. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Electrical Filament voltage Filament current Amplification factor, Eb = 350 v, Ib =4.5 ma, Ef =4.5 v Interelectrode capacitances Grid -plate Grid -cathode Plate -cathode Revised 4 5 volts 1 1 amperes 30 6 8 uuf 2 5 uuf 2.0 uuf GENERAL ELECTRIC Supersedes ETI-157A dated 12-48 GL-5742/PJ-7 ETI.157B PAGE 2 4-51 TECHNICAL INFORMATION (CONT'D) Mechanical Mounting position-vertical, base down Maximum glass temperature Net weight, approximate 150 C 2 ounces MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS AUDIO -FREQUENCY POWER AMPLIFIER AND MODULATOR -CLASS Al Maximum ratings, absolute values D -c plate voltage Plate dissipation Typical operation D -c plate voltage D -c grid voltage Peak a -f grid voltage D -c plate current Load resistance Power output 350 max volts 7.5 max watts 350 volts -6 volts 6 volts 2.8 milliamperes 40,000 ohms 0 08 watt AUDIO -FREQUENCY POWER AMPLIFIER AND MODULATOR -CLASS B Maximum ratings, absolute values D -c plate voltage D -c plate current Plate input Plate dissipation Typical operation Unless otherwise specified, values are for 2 tubes D -c plate voltage D -c grid voltage D -c plate current Power output, approximate 350 max volts 35 max milliamperes 12 max watts 10 max watts 350 volts -10 volts 64 milliamperes 4 watts PLATE -MODULATED RADIO -FREQUENCY POWER AMPLIFIER -CLASS C TELEPHONY Carrier conditions per tube for use with a maximum modulation factor of 1.0 Maximum ratings, absolute values D -c plate voltage D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation Typical operation D -c plate voltage D -c grid voltage D -c plate current D -c grid current, approximate Power output, approximate 300 max volts -100 max volts 40 max milliamperes 15 max milliamperes 12 max watts 10 max watts 300 volts -40 volts 35 milliamperes 8 milliamperes 5 watts RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR -CLASS C TELEGRAPHY Key -down conditions per tube without amplitude modulations* Maximum ratings, absolute values D -c plate voltage D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation Typical operation D -c plate voltage D -c grid voltage D -c plate current D -c grid current, approximate Power output 350 max volts -100 max volts 40 max milliamperes 15 max milliamperes 14 max watts 10 max watts 350 volts -25 volts 35 milliamperes 5 milliamperes 6 watts * Modulation, essentially negative, may be used if the positive peak of the envelope does not exceed 115 per cent of the carrier conditions. GL-5742/PJ-7 ET1-157p, PAGE 3 4-51 15 Nw wcc a_ M a_I I0 wi..J z I zw- a cn0c w iaa_I 5 vor K-8639682 Ecr+10 Ef. 4.5 VOLTS D-C Ec .+ 5 Ec r0 Ecr-5 Ec.-10 Ec =-I5 Ec --20 - - 100 200 300 400 500 600 PLATE VOLTAGE IN VOLTS GL-5742/PJ-7 AVERAGE STATIC CHARACTERISTICS 12-22-44 GL5742/PJ-7 ETI-157B PAGE 4 4-51 *OUTLINE GL-5742/PJ-7 PLIOTRON 1.625" MAX. DIA. 4 2 MAX. BASE NO. A4-10 ANODE TERMINAL GRID TERMINAL N-21216AZ /Revised 4-51 (11M) FILAMENT TERMINALS 11-1 8-49 Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL-5556/PJ-8 DESCRIPTION AND RATING ETI-158A PAGE 1 4-51 PLIOTRON DESCRIPTION The GL-5556/PJ-8 is a high -vacuum tube de- characteristics are particularly valuable in many signed for use in amplification and relay applica- control applications. tions. The low grid power and uniformity of TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes . 3 Electrical Filament voltage Filament current . 4 5 volts . 1.1 amperes Amplification factor, Eb = 350 v, Ib =19 ma, Ec = -20 v, Ef =4.5 v ..8.5 Grid -plate transconductance Direct interelectrode capacitance .1330 micromhos *Grid -plate Grid -cathode . *Plate -cathode 6 7 micromicrofarads 2 3 micromicrofarads 2 2 micromicrofarads *Revised. GENERAL ELECTRIC Supersedes ETI-158 dated 4-45 GL-5556/PJ-8 ETI-158A PAGE 2 4-51 TECHNICAL INFORMATION (CONT'D) MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS CLASS A AUDIO -FREQUENCY AMPLIFIER AND MODULATOR Maximum ratings, absolute values D -c plate voltage Plate dissipation Typical operation D -c plate voltage D -c grid voltage L Peak grid swing, approx D -c plate current Plate resistance Load resistance Plate power output, 5% second harmonic 350 volts 7.5 watts 350 volts -30 volts 30 volts 9 milliamperes 8700 ohms 18,000 ohms 0 6 watts CLASS B RADIO -FREQUENCY POWER AMPLIFIER Carrier conditions per tube for use with a maximum modulation factor of 1.0 Maximum ratings, absolute values D -c plate voltage D -c plate current Plate input Plate dissipation Typical operation D -c plate voltage D -c grid voltage D -c plate current Peak r -f grid input Driving power, approx Plate power output 350 volts 40 milliamperes 14 watts 10 watts 350 volts -40 volts 32 milliamperes 90 volts 0 1 watt 2 watts CLASS C RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR, PLATE MODULATED Carrier conditions per tube for use with a maximum modulation factor of 1.0 Maximum ratings, absolute values D -c plate voltage D -c grid voltage D -c plate current D -c grid current, approx Plate input Plate dissipation Typical operation D -c plate voltage D -c grid voltage D -c plate current D -c grid current, approx Peak r -f grid input voltage, approx Driving power, approx Plate power output 350 volts -150 volts 40 milliamperes 10 milliamperes 14 watts 7 watts 300 volts -100 volts 30 milliamperes 2 milliamperes 140 volts 0 3 watts 4 watts CLASS C RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR Key -down conditions per tube without modulation* Maximum ratings, absolute values D -c plate voltage D -c grid voltage D -c plate current D -c grid current, approx Plate input Plate dissipation Typical operation D -c plate voltage D -c grid voltage D -c plate current D -c grid current, approx Peak r -f grid input voltage, approx Driving power, approx Plate power output, approx 350 volts -150 volts 40 milliamperes 10 milliamperes 14 watts 10 watts 350 volts -80 volts 35 milliamperes 2 milliamperes 130 volts 0 25 watts 6 watts I. At crest of audio-frequencycycle. Modulation, essentially negative, may be used if the positive peak of the audio -frequency envelope does not exceed 115 per cent of the carrier conditions. GL-5556/PJ-8 ETI-158A PAGE 3 4-51 APPLICATION NOTES The GL-5556/PJ-8 can be operated at frequencies as high as six megacycles, and may be operated at higher frequencies provided the maximum values of plate voltage and power input are reduced as the frequency is raised (other maximum ratings are the same as shown under TECHNICAL INFORMATION). The tabulation below shows highest percentage of maximum plate voltage and power input that can be used up to thirty megacycles for the various classes of service. Special attention should be given to adequate ventilation of the bulb at these frequencies. Frequency . Max permissible percentage of max. rated plate voltage and plate input Class B, r -f Class C, plate modulated or unmodulated 6 15 100 85 100 75 30 megacycles 70 per cent 50 per cent The normal value of grad leak, when the GL-5556/PJ-8 is used as an oscillator or r -f power amplifier (Class C), is in the neighborhood of 10,000 ohms, although this may be replaced by a suitable fixed bias. If self -bias is used, the cathode should be approximately 2000 ohms. 80 GL-5556/PJ-8 AVERAGE STATIC CHARACTERISTICS PLATE VOLTAGE-PLATE CURRENT EF= 4.5 VOLTS D -C / 60 Ec=+10 Ec. 0 EG.--10 E G ---20 EC---30 cn W cr W 40 &" 4 ri -J Z Fz- W20 00cif' Vic al la K-7033:57 / /s ./.......7/PI s e e 30 , PLATE VOLTAGE IN VOLTS EG.-40 =-50 ...m1 . so EC .-6. 12-22-44 GI.5556/13.141 ETI.158A PAGE 4 4-51 OUTLINE GL -5556 PJ-8 PLIOTRON 1.625" MAX. DIA . 4 721;MAX. BASE NO. A4 -1O ANODE TERMINAL GRID TERMINAL N-21216AZ /Revised 4-51 (11M) FILAMENT TERMINALS Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 11 19-49 GL -5743 /13.11-21 DESCRIPTION AND RATING ETI-159A PAGE 1 12-48 PLIOTRON DESCRIPTION The GL-5743/PJ-21 is a three -electrode tube accomplished by radiation. The cathode is a designed for use as a class A amplifier. The anode thoriated-tungsten filament. is capable of dissipating 7.5 watts and cooling is TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Electrical Filament voltage Filament current Amplification Factor, Eb =350 v, Ib =19.5 ma, Ef = 4.5 v Interelectrode capacitances Grid -plate Grid -filament Plate -filament 4 5 volts 1.1 amperes 3 7 5 uuf 3.0 uuf 4 0 uuf GENERAL ELECTRIC Supersedes ETI-159 dated 4-45 GL -5743 /PJ-21 ETI.159A PAGE 2 12-48 TECHNICAL INFORMATION (CONT'D) Mechanical Mounting position-vertical, base down Maximum glass temperature Net weight, approximate MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS AUDIO -FREQUENCY POWER AMPLIFIER AND MODULATOR-CLASS A Maximum ratings, absolute values D -c plate voltage Plate dissipation Typical operation D -c plate voltage D -c grid voltage Peak a -f grid voltage D -c plate current Load resistance Power output 150 C 2 ounces 350 max volts 7 5 max watts 350 volts 83 volts 83 volts 19.5 milliamperes 7500 ohms 1.7 watts GL -5743 /13J-21 AVERAGE PLATE CHARACTERISTICS =1.1 AMPERES D -C (E1=4.5 VOLTS, APPROX.) 7 ' 6, ,.,1 '`--- A, ., ,,. °A 0 5( co AAEI . '--Po 4,° ,.,co 0 OA w a_ 24 .7J 3 4 I-IIAIIIIIIMIFF i AMMEV c0 Zv° ACV& IP 4,0 v/.&' A° 0 44°*(° 53 , sd, A , = W ilIAIMPAIWAIIIIIAIIIII 4. FMMEMIIIIIiIIVAAIIIIAVMAIIIPVrAlAi MIr IIIYAMINVIIIIVAIIIMIAMP" .04 A* AM < Q 4v 0 ''> 4 ,A ' Mr III 100 200 300 400 PLATE VOLTAGE K-6966438 7-1-44 GL -5743 /'PJ-21 ETI-159A PAGE 3 12-48 II 8 BASE NO. A4-10 PLATE TERMINAL GRID TERMINAL FILAMENT TERMINALS K-3846047 OUTLINE GL -5743 /PJ-21 PLIOTRON 5-25-48 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 12-48 (9M) Filing No. 8850 GL -5739 /FP -62 DESCRIPTION AND RATING ETI-161A PAGE 1 12-48 PLIOTRON DESCRIPTION The GL-5739/FP-62 is an ionization gage which will accurately and conveniently measure gas pressures over a range of from 100 microns to as low as 0.001 micron. This pliotron is not only sufficiently sturdy for general use but is designed to be sufficiently sensitive for the most delicate measurements. Leakage in the collector circuit, the limiting feature in some gages, has been entirely eliminated by special construction. This gage has a high sensitivity characteristic and, since the parts are rigidly mounted, it will hold its calibration to a very close degree. TECHNICAL INFORMATION GENERAL CHARACTERISTICS Number of electrodes 3 Electrical Filament-pure tungsten Normal voltage, approx Normal current, approx Maximum current Normal operating conditions Collector voltage Grid voltage Grid current Average sensitivity, collector current per micron of pressure of dry air at normal operating conditions, approximate 4 5 volts 1 48 amperes 1 68 amperes -22.5 volts 112.5 volts 10 milliamperes 40 microamperes GENERAL ELECTRIC Supersedes ETI-161 dated 4-45 GL -5739 /FP -62 ETI-161A PAGE 2 1 2 4 8 TECHNICAL INFORMATION (CONT'D) Mechanical Bulb material Maximum "bake -out" temperature hard glass 500 centigrade TYPICAL CALIBRATION Grid voltage Collector or plate voltage Grid current 112M volts -223A volts 10 milliamperes Collector Current in Microamperes Gas per Micron Pressure Helium 5 6 Neon 9 0 *Nitrogen 39.5 Argon 54.0 * The value given for nitrogen is correct for dry air since the oxygen cleans up when the filament is lighted. INSTALLATION AND OPERATION INSTALLATION: The GL-5739/FP-62 is of the glass may cause the gage to read higher than hard glass and may be used on either hard- or soft- the actual pressure in the system. Before the glass systems. When it is sealed to a soft -glass system gage is used, it should be degassed as follows : a graded seal must be used. The gage is furnished 1. Bake out with the rest of the system (do not exhausted and sealed off and with a tubulation for exceed 500 C). sealing it into the system. The gage should be 2. Connect the grid and plate leads to the kept in this form until it is ready to be used. The end of the tubulation is then cut off and the gage sealed into the system, care being taken that no constriction is formed between the bulb and the system. For accurate results, the gage should be placed as near as possible to the point at which the pressure is to be measured. The gage should be mounted with its axis vertical. The stem may be either up or down, whichever is more convenient. Since, in sealing the gage into the system, the end of the tubulation is cut off and air is let in, it is necessary to exhaust and degas the gage before it can be used. For this reason the gage is furnished unbased to permit its being baked out. Where high voltages are used in the system and where there is a possibility of a gaseous discharge to the electrodes of the gage, a wire or guard ring should be inserted in the seal when sealing to the system. This wire or guard ring should then be well grounded. Care should be taken against shorting the leads while anyone is working around the system. The entire collector circuit should be well insulated to prevent the introduction of external sources of leakage. The glass around the collector lead should be clean so that there will be no leakage at that point. For working at low pressures it is necessary to degas the gage thoroughly. At these low pressures the gas occluded from the metal parts and from positive 500 -volt d -c supply. 3. Bombard at 1000 C plate temperature for 20 minutes. This is accomplished by regulating the filament voltage to give approximately 40 to 80 milliamperes total current. Note: Only a d -c voltage supply should be used in this operation. OPERATION: Measurements are taken with the gage by placing a positive voltage on the grid and a negative voltage on the collector. The filament voltage is increased until the grid current reaches the desired value. The negative current to the collector is then a measure of the gas pressure. The calibration curve of the gage is nearly a straight line, especially at pressures below one micron. By checking a few points of collector current and gas pressure against a McLeod gage, the curve can be plotted and extrapolated down to zero current at zero pressure. Typical calibrations for various gases are shown on page 2. It can reasonably be expected that, as long as the arrangement of the electrodes of the gage re mains unchanged, the calibration will also remain constant. Excessive overheating during degassing or rough handling may warp or change the relative positions of the electrodes. Leakage arising in the collector circuit can also cause a change in the calibration. This, however, can be detected by looking for a residual leakage current with the filament cold. OPERATING NOTES The filament should not be lighted until the pressure has been reduced to a low value. Care should be taken during bombardment that the gas evolved does not cause the current to increase steadily until the filament burns out or the electrodes are warped. A series resistor will be found satisfactory for avoiding such trouble. As a further precaution, bombardment should not begin until the pressure is below one micron. In taking readings at extremely low pressures, present. The gage will clean up the gas slowly and give too low a reading. Furthermore, the rate of flow, or rather drift of gas, at low pressure is slow and the gage may read high or low depending on which way the pressure is changing. For best results it is recommended that the filament be turned off and the system allowed to equalize for several minutes. Following this period of equaliza- tion the filament should again be lighted and a reading taken as soon as possible. there are two sources of inaccuracy which may be I1163"MAX. DIA. GL -5739 /FP -62 ETI-161A PAGE 3 12-48 7-2 MAX- 2MAX ' K-4903555 OUTLINE GL-5739/FP-62 PLIOTRON 6-9-44 Electronics Department GENERAL d ELECTRIC Schenectady, N. Y. 12-48 (9M) Filing No. 8850 GL -207 DESCRIPTION AND RATING ETI-1 62B PAGE 1 9-51 PLIOTRON DESCRIPTION The GL -207 is a three -electrode vacuum tube designed for use as a radio -frequency power amplifier, oscillator, or Class B modulator. The plate is water-cooled and capable of dissipating 6.6 to 10 kilowatts, depending on the service in which the tube is used. The cathode is a pure tungsten filament. Maximum ratings apply up to 1.6 megacycles. *TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Electrical Data Filament voltage (A -c or D -c) Filament current Filament starting current, maximum. Filament cold resistance Amplification factor. Direct interelectrode capacitances, approximate Grid -plate Grid -filament Plate -filament /Revised. 22 volts 52 amperes 100 amperes 0 03 ohm 20 27 uuf 18 uuf 2.0 uuf GENERAL ELECTRIC Supersedes ETI-162A dated 8-48 GL -207 ETI-16213 PAGE 2 9-51 TECHNICAL INFORMATION (CONT'D) Mechanical Data Mounting position-vertical, filament end up Type of cooling-water Water flow on anode Maximum outgoing water temperature 3-8 gallons per minute 70 C Maximum glass temperature* Net weight, approximate Shipping weight, approximate 150 C 3 pounds 10 pounds * In installations where circulation of free air is restricted, or at the higher frequencies, forced -air cooling may be necessary to prevent this limit from being exceeded. MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS AUDIO -FREQUENCY POWER AMPLIFIER AND MODULATOR -CLASS B Maximum Ratings, Absolute Values D -c plate voltage Maximum signal d -c plate current** Maximum signal plate input** Plate dissipation** Typical Operation Unless otherwise specified, values are for two tubes D -c plate voltage D -c grid voltagex 6000 -210 Peak a -f grid -to -grid voltage 1520 Zero signal d -c plate current 0.5 Maximum signal d -c plate current 2.5 Effective load resistance, plate to plate 4200 Maximum signal driving power, approximate 190 Maximum signal power output, approximate 8 **Averaged over any audio -frequency cycle of sine -wave form. xFor d -c filament supply. 10000 -410 2140 0.5 3.2 6400 380 20 15000 max volts 2 max amperes 20 max kilowatts 7.5 max kilowatts 12500 -575 2300 0.4 2.8 10000 400 22.5 volts volts volts ampere amperes ohms watts kilowatts RADIO -FREQUENCY POWER AMPLIFIER -CLASS B TELEPHONY Carrier conditions per tube for use with a maximum modulation factor of 1.0 Maximum Ratings, Absolute Values D -c plate voltage D -c plate current Plate input Plate dissipation Typical Operation D -c plate voltage D -c grid voltagex 6000 -225 Peak r -f grid voltage 400 D -c plate current 0.62 Driving power, approximate*** 72 Power output, approximate 1 ***At crest of audio -frequency cycle with modulation factor of 1.0. xFor d -c filament supply. 15000 max volts 1 max ampere 15 max kilowatts 10 max kilowatts 10000 -440 600 0.93 16 2.5 14000 -650 730 1.0 0 4 volts volts volts ampere watts kilowatts PLATE -MODULATED RADIO -FREQUENCY POWER AMPLIFIER -CLASS C TELEPHONY Carrier conditions per tube for use with a maximum modulation factor of 1.0 Maximum Ratings, Absolute Values D -c plate voltage D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation Typical Operation D -c plate voltage D -c grid voltage# Peak r -f grid voltage D -c plate current D -c grid current, approximate Driving power, approximate Power output, approximate #For a -c filament supply. 10000 max volts -3000 max volts 1 max ampere 0.2 max ampere 10 max kilowatts 6.6 max kilowatts 6000 -1200 1860 0.76 0.15 280 3.5 8000 10000 -1600 -2000 2300 2660 0.78 0.75 0.14 0.07 325 185 5 6 volts volts volts ampere ampere watts kilowatts TECHNICAL INFORMATION (CONT'D) GL -207 ETI.162B PAGE 3 9-51 RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR-CLASS C TELEGRAPHY Key -down conditions per tube without modulation Maximum Ratings, Absolute Values D -c plate voltage D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation 15000 max volts -3000 max volts 2 max amperes 0.2 max ampere 30 max kilowatts 10 max kilowatts Typical Operation D -c plate voltage 8000 10000 12000 volts D -c grid voltage -1000 -1200 -1600 volts Peak r -f grid voltage 1730 2050 2650 volts D -c plate current 1.10 1.33 1.67 amperes D -c grid current, approximate 0.17 0.12 0.09 ampere Driving power, approximate 295 245 235 watts Power output, approximate 6.5 10 15 kilowatts ¶ Modulation essentially negative may be used if the positive peak of the envelope does not exceed 115 per cent of the carrier conditions. Obtained from fixed supply, by grid resistor, or by cathode resistor. For a -c filament supply. APPLICATION NOTES Maximum ratings apply up to 1.6 megacycles. The tube may be operated at higher frequencies provided the maximum values of plate voltage and power input are reduced according to the tabulation below (other maximum ratings are the same as shown above). Special attention should be given to adequate ventilation of the bulb at these frequencies. Frequency 1.6 7.5 20 megacycles Percentage of maximum rated plate voltage and plate input Class B 100 85 76 per cent Class C plate modulated 100 85 75 per cent Class C unmodulated 100 75 50 per cent Plate series protective resistors Series resistor 25 50 200 250 275 300 ohms Maximum power output of rectifier 16 40 100 250 640 1600 kilowatts GL -207 FILAMENT EMISSION CHARACTERISTICS 10.0 SO 80 70 GO to 40 3o 20 10 9 8 7 .6 .5 4 .3 2 12 K-9033926 14 16 fa to FILAMENT VOLTAGE IN VOLTS c2 8-21-45 GL -207 ETI-1 626 PAGE 4 9-51 2.5 GL - 207 PLATE GRID TRANSFER CHARACTERISTIC TYPICAL DATA 2.0 Ef = 22 VOLTS A -G 1.5 tc 0- 1.0 7 z it,700 t,,,, 1 (1)0 z u-10.5 ,,,,,,,,,...,.0 0 O 11,...141111,. ,......_.____ 0 200 100 300 600 5 004 0 700 0 K-6955465 2 3 4 5 6 7 8 PLATE VOLTAGE 1 N KILOVOLTS GL -207 CHARACTERISTICS E1=22 VOLTS A -C 10 9-26-44 1600 1E_ Hh 1230 te 0-1 800 400 0 -400 WI r I 1-4 Yf -1200 5 K -69087-72A106 -4 H 4 0 15 PLATE VOLTAGE IN KILOVOLTS SOW EM. MM. 20 NI MI111 0.1 0 25 2-6-47 7 6 w cc 5 w o_ z4 I - z cc n3 4:1 a2 0 K-6966463 GL -207 FILAMENT CHARACTERISTIC (COLD RESISTANCE OF FILAMENT =0.03 OHMS) 56 55 GL -207 ETI-16211 PAGE 5 9-51 54 53 Lv3 52 51 LA, 50 LLI 49 48 47 46 17 18 K-9074551 19 20 21 22 23 24 FILAMENT VOLTAGE IN VOLTS 25 12-10-45 +8010 I +700 1- 600 V +500 GL- 207 AVERAGE PLATE CHARACTERISTIC Ef- 22 VOLTS A -C -1- 400 + 300 + 200 r+100 GRID VOLTAGE -100 -200 - 300 -400 -500 -600 -700 -800 _Id -900 5 10 15 PLATE VOLTAGE IN KILOVOLTS 20 9-26-44 GL -207 ETI-162B PAGE 6 9-51 FILAMENT TERMINALS .15691-.007"DIA7,- I" MIN. STRANDED CABLE r -31"6 DIA. APPROX. 2 BASE 3906 I" MAX. .437"±.010" DIA. GRID TERMINAL 7" i-6- STRAIGHT SIDE , 3"MAX 34. 1-1"- 16 DIA. f 2-2 MIN 271DIA1 I6MAX. -1- , 1" MAX. LENGTH 14" TUBULATION 10116+- 2 7-92116+- _321 8 .18 7"1" .015" 2. 0 0 0"-±..020" DIA. K-5182095 9-51 (11M) 1.580"±.050" DIA. ANODE OUTLINE GL -207 PLIOTRON Tube Department, Electronics Division GENERAL ELECTRIC Schenectady, N. Y. 7-27-45 FP -285 DESCRIPTION AND RATING ETI-164A PAGE 1 5-51 PLIOTRON DESCRIPTION The FP -285 is a high -vacuum tube suitable for use as an oscillator and radio -frequency amplifier in high -frequency circuits. This tube is especially satisfactory when used to generate the ultra -high frequencies required in short-wave therapy equipment. The hazard of stem puncture, a common fault in some tubes used in such applications, has been eliminated by bringing the plate and grid leads out through the side wall of the cathode stem. Low plate -to -filament capacitance and good insulation, especially important features in tubes for high -frequency service, are assured by the use of a special insulator which supports the mount and holds the clamp and supports away from the plate. These, together with the other design features inherent in pliotrons of this type, result in economical, dependable operation and long life. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Filament voltage Filament current at bogey voltage Amplification factor, Ib = 75 ma d -c, Ec=0 and -50 volts d -c Interelectrode capacitances Grid -plate Grid -filament Plate -filament Minimum 9.5 3.1 10.8 11.8 5.0 3 75 Bogey 10 3.25 12.0 13.5 6.0 5.0 Maximum 10.5 volts 3.4 amperes 13.2 15.2 uuf 7.0 uuf 6.25 uuf 1Completely revised. GENERAL ELECTRIC Supersedes ETI-164 dated 4-45 FP -285 ETI-164A PAGE 2 5-51 TECHNICAL INFORMATION (CONT'D) Mechanical Data Mounting position-vertical, or horizontal with plane of electrodes vertical Net weight, approximate 8 ounces MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR-CLASS C TELEGRAPHY Key -down conditions per tube without amplitude modulation* Maximum ratings, absolute values A -c plate voltage, rms D -c plate voltage, filtered or pulsating D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation 1500 max volts 1350 max volts -400 max volts 200 max milliamperes 50 max milliamperes 270 max watts 100 max watts Typical operation D -c plate voltage, filtered or pulsating D -c grid voltage 750 1000 1250 volts -100 -150 -200 volts D -c plate current 200 200 200 milliamperes D -c grid current 30 30 30 milliamperes Power output 100 140 180 watts * Modulation essentially negative may be used if the positive peak of the envelope does not exceed 115 per cent of the carrier conditions. Maximum ratings apply up to 20 megacycles. The tube may be operated at higher frequencies provided the maximum values of plate voltage and power input are reduced according to the tabulation below (other maximum ratings are the same as shown above). Special attention should be given to adequate ventilation of the bulb at these frequencies. Frequency 20 50 80 megacycles Percentage of maximum rated plate voltage and plate input 100 75 50 per cent APPLICATION NOTES The tube may be mounted either vertically, with base up or down, or horizontally, with the filament in a vertical plane. The metal shell must not be connected to any part of the circuit. The normal value of grid leak, when the tube is used as an oscillator or r -f power amplifier (Class C), is in the neighborhood of 5000 ohms, although this may be replaced by a suitable fixed bias. If self -bias is used, the cathode resistor should be approximately 1000 ohms. In some cases, to minimize the danger of overloads, a combination of grid leak and partial self -bias may be desirable. The values should be chosen so that the plate loss at the worst condition is limited to the maximum rating. The following table indicates the tube output obtainable at various wavelengths when the tube is operated within the maximum allowable conditions in a properly designed circuit. Wavelength Meters Megacycles A -c Plate Voltage, Volts Minimum Plate Output, Watts Maximum Plate Output, Approx Watts 15 20 1500 170 200 10 30 1350 150 180 7.5 40 1250 140 160 6 50 1150 110 130 5 60 1000 80 100 4 75 750 40 60 FP -285 300 ETI-164A r- FP -285 PAGE 3 5-51 AVERAGE CHARACTERISTICS Ef =10 VOLTS A -C 250 0200 Cr a_ 2 CrI50 cEa100 GRID VOLTS -1-200 +175 50 +150 125 +100 75 515 0 500 -6917435 1000 PLATE VOLTS Fig. 1 150 0 5 4-23-51 FP -285 AVERAGE PLATE CHARACTERISTICS E f = 10 VOLTS A -C 1.5 0 . 5 0 K-69087-72A9 I 500 1000 1500 PLATE VOLTAGE IN VOLTS Fig. 2 2000 1.20-47 FP -285 ET1-164A PAGE 4 5-51 OUTLINE FP -285 PLIOTRON .0- 2 -52 MAX DIAL16 ' 8 MAX. 5-51 (11M) B ASE#1839 PLANE OF ELECTRODES GRID FILAMENT K-5302946 ANODE BOTTOM VIEW OF BASE 8-7-45 Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL -807 DESCRIPTION AND RATING ETI.165A PAGE 1 3-50 (Pages 1 thru 4 revised 5-51) PLIOTRON DESCRIPTION The GL -807 is a five -electrode transmitting tube accomplished by radiation. The cathode is the for use as an amplifier, modulator, and oscillator. indirectly heated type. Maximum ratings apply up The anode can dissipate 30 watts, and cooling is to 60 megacycles. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Heater Voltage Heater Current at Bogey Voltage Amplification Factor, G1-G2, Eb = Ea = 250 v, E, = -10 v Direct Interelectrode Capacitances Grid -Plate (With External Shield) Input Output Minimum 5.7 0.81 10 5.3 Bogey 6.3 0.9 Maximum 6.9 0.99 8 0.2 12 14 7 8.7 volts ampere uuf uuf uuf Mechanical Data Mounting Position-Any Net Weight, approximate Technical information revised. 2.5 ounces Supersedes ETI-165 dated 4-45 GENERAL ELECTRIC GL -807 ETI-165A PAGE 2 3.50 (Pages 1 thru 4 revised 5-51) TECHNICAL INFORMATION (CONT'D) MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS AUDIO -FREQUENCY POWER AMPLIFIER AND MODULATOR -CLASS AB1 (TRIODE CONNECTED) Maximum ratings, absolute values D -c plate and grid-No. 2 voltage Maximum signal d -c plate plus grid-No. 1 current* Maximum signal d -c plate plus grid-No. 2 input* Plate plus grid-No. 2 dissipation* Typical operation Unless otherwise specified, values are for two tubes D -c plate and grid-No. 2 voltage D -c grid-No. 1 voltage t Peak a -f grid-No. 1 -to -grid -No. 1 voltage I Zero-signal d -c plate plus grid-No. 2 current Maximum-signal d -c plate plus Grid-No. 2 current Effective load resistance, plate to plate Maximum-signal driving power, approximate Maximum-signal power output, approximate CCS 400 max 125 max 50 max 25 max CCS 400 -45 90 60 140 3000 0 15 ICAS 400 max volts 125 max milliamperes 50 max watts 30 max watts ICAS 400 -45 90 60 140 3000 0 15 volts volts volts milliamperes milliamperes ohms watts watts AUDIO -FREQUENCY POWER AMPLIFIER AND MODULATOR -CLASS AB2 Maximum ratings, absolute values D -c plate voltage D -c grid-No. 2 voltage Maximum signal d -c plate current* Maximum signal plate input* Maximum signal grid-No. 2 input* Plate dissipation* Typical operation Unless otherwise specified, values are for two tubes D -c plate voltage D -c grid-No. 2 voltage D -c grid-No. 1 voltage** Peak A -F grid No. 1 to grid No. 1 voltage Zero-signal d -c plate current Maximum-signal d -c plate current Zero-signal d -c grid-No. 2 current Maximum-signal d -c grid-No. 2 current Effective load resistance, plate to plate Maximum-signal driving power, approximate*** Maximum-signal power output, approximate . 400 300 -25 78 90 240 2.0 15 3200 0.2 55 CCS 500 300 -29 86 72 240 0.9 12 4240 0.2 75 CCS 600 max 300 max 120 max 60 max 3.5 max 25 max 600 300 -30 78 60 200 0.7 16 6400 0.1 80 ICAS 750 max volts 300 max volts 120 max milliamperes 90 max watts 3.5 max watts 30 max watts ICAS 750 volts 300 volts -32 volts 92 volts 52 milliamperes 240 milliamperes 0.5 milliamperes 17 milliamperes 6950 ohms 0.2 watts 120 watts RADIO -FREQUENCY POWER AMPLIFIER -CLASS B Carrier conditions per tube for use with a maximum modulation factor of 1.0 Maximum ratings, absolute values D -c plate voltage D -c grid-No. 2 voltage D -c plate current Plate input Grid-No. 2 input Plate dissipation Typical operation D -c plate voltage 400 D -c grid-No. 2 voltage 250 D -c grid-No. 1 voltage** -25 Peak R -F grid-No. 1 voltage 30 D -c plate current 75 D -c grid-No. 2 current 4 D -c grid-No. 1 current, approximate 0 Driving power, approximate// 0.25 Power output, approximate 9 CCS 500 250 -25 30 75 4 0 0.25 12.5 CCS 600 max 300 max 80 max 37.5 max 2.5 max 25 max 600 250 -25 20 62.5 3 0 0.2 12.5 ICAS 750 max volts 300 max volts 90 max milliamperes 45 max watts 2.5 max watts 30 max watts ICAS 750 300 -35 27 60 3 0 0.12 15 volts volts volts volts milliamperes milliamperes milliamperes watts watts TECHNICAL INFORMATION (CONT'D) GL -807 ETI.1 65A PAGE 3 3-50 (Pages 1 thru 4 revised 5-51) PLATE -MODULATED RADIO -FREQUENCY POWER AMPLIFIER -CLASS C TELEPHONY Carrier conditions per tube for use with a maximum modulation factor of 1.0 Maximum ratings, absolute values D -c plate voltage D -c grid-No. 2 voltage D -c grid-No. 1 voltage D -c plate current D -c grid-No. 1 current Plate input Grid-No. 2 input Plate dissipation Typical operation D -c plate voltage 375 D -c grid-No. 2 voltage 225 D -c grid-No. 1 voltage** -75 Peak R -F grid-No. 1 voltage 90 D -c plate current 80 D -c grid-No. 2 current 5 D -c grid-No. 1 current, approximate 3 Driving power, approximate 0.25 Power output, approximate 17.5 CCS 400 225 -80 95 80 5.75 3.5 0.3 22.5 CCS 475 max 300 max -200 max 83 max 5 max 40 max 2.5 max 16.5 max 475 225 -85 110 83 5 4 0.4 27.5 ICAS 600 max volts 300 max volts -200 max volts 100 max milliamperes 5 max milliamperes 60 max watts 2.5 max watts 25 max watts ICAS 600 volts 275 volts -90 volts 115 volts 100 milliamperes 6.5 milliamperes 4 milliamperes 0.4 watts 42.5 watts RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR -CLASS C TELEGRAPHY Key -down conditions per tube without amplitude modulation ¶ Maximum ratings, absolute values D -c plate voltage D -c grid-No. 2 voltage D -c grid-No. 1 voltage D -c plate current D -c grid No. 1 current Plate input Grid-No. 2 input Plate dissipation Typical operation D -c plate voltage D -c grid-No. 2 voltage D -c grid-No. 1 voltage** Peak r -f grid-No. 1 voltage D -c plate current D -c grid-No. 2 current D -c grid-No. 1 current, approximate Driving power, approximate Power output, approximate CCS 600 max 300 max -200 max 100 max 5 max 60 max 3.5 max 25 max CCS 400 500 600 250 250 250 -45 -45 -45 65 65 65 100 100 100 7.5 6 7 3.5 3.5 3.5 0.2 0.2 0.2 25 30 40 ICAS 750 max volts 300 max volts -200 max volts 100 max milliamperes 5 max milliamperes 75 max watts 3.5 max watts 30 max watts ICAS 750 volts 250 volts -45 volts 65 volts 100 milliamperes 6 milliamperes 3.5 milliamperes 0.2 watts 50 watts *Averaged over any audio -frequency cycle of sine -wave form. tThe type of input coupling network used should not introduce too much resistance in the grid-No. 1 circuit. Transformer or impedance coupling devices are recommended. When the grid-No. 1 is operated in the negative region with fixed bias, the d -c grid-No. 1 circuit resistance should not exceed 100,000 ohms. For higher values of d -c grid-No. 1 circuit resistance, cathode bias is required. Under no circumstances should the total d -c grid --No. 1 circuit resistance exceed 0.5 megohms. The driver stage should be capable of supplying the No. 1 grids of the class AB stage with the specified driving voltage at low distortion. **When the tube is operated at its maximum ratings and the grid is driven positive, the total d -c grid-No. 1 circuit resistance should not exceed 30,000 ohms. If additional bias is required, it must be supplied by a cathode resistor or a fixed supply. When the tube is operated at less than maximum ratings, the d -c grid-No. 1 circuit resistance may be as high as 100,000 ohms. ***Driver stage should be capable of supplying the No. 1 grids of the class AB stage with the specified driving power at low distortion. The effective resistance per grid-No. 1 circuit of the class AB stage should be kept below 500 ohms and the effective impedance at the highest response frequency should not exceed 700 ohms. //At crest of audio -frequency cycle with modulation factor of 1.0. Modulation essentially negative may be used if the positive peak of the envelope does not exceed 115 per cent of the carrier conditions. GL -807 UM 65A PAGE 4 3 50 (Pages 1 thru 4 revised 5-51) TECHNICAL INFORMATION (CONT'D) Maicimum ratings apply up to 60 megacycles. The tube may be operated at higher frequencies provided the maximum values of plate voltage and power input are reduced according to the tabulation below (other maximum ratings are the same as shown above). Special attention should be given to adequate ventilation of the bulb at these frequencies. Frequency 60 80 125 megacycles Percentage of maximum rated plate Voltage and plate input Class B 100 90 75 per cent Class C plate modulated 100 80 55 per cent Class C unmodulated 100 80 55 per cent GL -807 AVERAGE PLATE CHARACTERISTICS TRIODE CONNECTION GRID NO. 2 CONNECTED TO PLATE, Ef =6.3 VOLTS 300 120 I "411110 pummomm mows FAI ° ememeimei MMM ...1 gloom =mom I II EMOMMIMMMEMMMEMMEMEM4 100 IIIIMMEII MMEM MMMMM 200 MMMMMMMM LAMM 14 a 80 r. MR .3 III" MMMMMMM M =WM MMMMM N MMINIMIMMMU NOmM 100 MMEMIIMMWAMOIMM3M KMMMVMMII/AEMMMMWAA MMMMM MIAMMWAIMMAlle KMNWMINMNEMEMINKMKAMMENEMEM MMMIMEMEMMN/MAMKAMEMONAMMMIII MIMMKiMIAMMIWAI MEMWMY as --r: MmMmMaI0s3m. !.. MMVVANNIMMMft r,IMUUMN MO,Mr. A int r:4"g man= M VTrPd o ig 0 100 K -69087-72A369 New Drawing, 1 AA .y IF ENNA NOMMEN Ni N M mr4 A A Pi pl ..-gip- .r... P-dmommum, ne,..Anlmioimpirm.pron , ,..- asignourst vni eu-re M 5011Kit. MM 4-.1=1igrOnliegiraM . MM r.-M.M.MegOO!" M 200 300 PLATE VOLTAGE IN VOLTS a 60 'TEENER MMMMMMM MiK0 MM MM N 40 AIM= ridIMME AMSKIMMIM MMMMM 20 .dismpom M AMOMMMPA M 400 5000 4-1 8-50 GL -807 AVERAGE PLATE CHARACTERISTICS WITH Eci AS VARIABLE (Ef =6.3 VOLTS, SCREEN VOLTS =250) 600 GL -807 ETI-165A PAGE 5 3-50 400 MEMIEwww 121 1111 A.1 11 11 11 LIH Ma' 200 ii .M.E..PIII MMEENMU EMEAP...t TMIZZ. MEMP.m EIME111.:: MEM t.r.d1 0 K-9033996 /New Drawing. 200 400 600 PLATE VOLTAGE IN VOLTS 800 12-10-45 /GL -807 AVERAGE PLATE CHARACTERISTICS WITH Eci AS VARIABLE (Ef=6.3 VOLTS, SCREEN VOLTS=300) 600 mEuMEmMoEmMmEoMmMEmOuMmEmMoMmERmMEuMmEmMimEmMomEmMoOmMmRuEMmmMEuEMmMEMmEMMoREMEmMMMmEEMMoMMEmENmEEmMiOMMuMMMmMMMMmMMMmMMMMuMMMmMMmEMMmMEMoMMMmMMMmMMMMMMMMMMMMMMMMmMMmMMMEMEMMMEEmRMoEEMmMEmEMiMMmEEEmMREuEMmMEmIMoRUEmMMEmEMoMEmEMmREuEMMEmEmMMmMEmMM.MEM MEMEEMMMEOEMMEMEMMMEMMMMEEMMEACHMMEOOEMMMMEEEMMMMEEMRMMEMMEMMMMMEMMMMMEMMMMMEmMEMMEMEMMEMMEROMMEMEMMMMEMMIRMMERMMEOMMMMMMMEMMEEMMNMMEEEMMMMMEmEEMEmMRMMuEEMEmMEMmMMEmoEEMomMMEmmMEEmoMMMomMMmmMEMmoMMMumMEMmmEMmMMMMoEEMMmEMmMMrMMEMiMMMMmMMMMmMMMMuMMMmMMMmMmMmMmMMouEmMmMMmEmOMNgMEMEEMMMMMMMEMMMMEEMMMMMEEEMMRMEEMBMMMEMEMREMRENM MEEMEMImNREmNEMEoMEMnEREMaNOEErMMWiURACmrEmMiElMEMMMMMMMMMMaMMMaEMmMMmEMiMEsmMsUEuINMmIENmMIMuEMMmEEmMMoMmMMEmMIMNMoMEMmMEMmIMMOiMEMmMMmMEEEoNMMMMEMMMMMEMMMMMMMEMMMMMMEMMMMMEWMMMEmEMMoMMmMMEMMMMMMEMMMNMMUMMMMMMMEEMMEMOMMOMmMMoMEMMMMmMMMMMMMUMMMMMMMMMMMMMMEMNMKEMMEEMMMMMEMMEEmEMMNmREMEaMMR IMEEMEMEMEMOIMMEMRMMMMMMMMMM MENEM MMMMMMMMMM MEMIMMEMMENNUMM MMMMMM MMENN.MMEMMEM MMMMMM MEM MMMMMMM MENEM ME MMMMMM MENEM MMMMMMM MEMEMEMEMEMEEMMMEMMMEMMMEMMMEMMEMMEEMEMMMMMMMMMMMMMMMEMNEEMM MEMEMEMEREMEMEMEME MMMMMM REM MMMMM V M FREMEMEMEMEMEREMEREEMEMEMEM MMMMM MENEM MMMMM EMMEN MEMEMEEMEMMEMEMEMEM 400 mummimm......- MMMMM MEM MMMMMMMM11 ..2.2==imom MM EMMMUMME MMMMMMMMMM MEM MMMM EMEMEMEMEMEMENEMEEM mmommimmomm mommommuumummom MMMMMMM mu MMMMMMMMMM MERLIN MEMEMMEECIREMEMEMEMEMEMEMEME M REEMMENEMMEOmmmEMINEMEME MMMMM M =MEMO MMMMMM EMEMEMMEREMEMEMEMEMMEMEM MMMMMMLIMMMMMMMMMMMMMMMMMMMMMMEMMOMEMMMMMMMMMMMMMMM MMMMMMMMM MEMEMEMEMEMEME MEMEMEMONEEMENEMEMEMEMEM MMMMM MMMMM MMMMM MsEoRmRmEoMnEcMEMENEEMMEREMEMEMEMEMEMEMEMEM MMMMMMM EMEMEMBCUMMEMEMEMEMEMENEMEME MMMMMMMMM MAME MMMMM D MEMEMEMEMEMEM MMMMMMM MEM MMMMMMMM MEMMEMEMMEMEN MMMMM MMEMHMMMEMNmwMopMmMmM=.M I ----- IMMEMMEINEME..mi MMMMMMMM EM MMMMMMM EMMEN MMMMMM MERE MMMMM EMMEN MMMMMMM EMMEMEMEEMEN MMMMM E=MMEIEMMIO.M.MNMEMEMMMEMMMMEMMEMMMMEMMMEMMMEMMM MMMEMEMMMMMMMMMMMMMMMEMMMEMMEIMMEMMEEMMEEMEEKMEM4MVMEMKMEMRM NEMEMEMEMEME MEM EWE 200 EMEMEMMEMEMEMEM REEMEAMEMEMEM M ME==mm EM.ME.EM.RENVMM.POAMNMEEEMEMEMEEIMMEMEMEEMMEMMMMEMM0U1M=. MMMMM MMMMM EINEM MMMMMM MMEMMEMMEME MMMMMMMMMMM MEM MMMMMMM 'MEMO M MMMMMMMEMMMMMEERMEEMMEEMMEERMEMMMMMMMMMEMVMEMMEwMoEmNmEEoMmEmRoEmpMMMMMMMMMMMMMEMMMO EMMMMMEMMN MNEOMMEMMEENE=MERMEMEMMMEMMME EEMMMUMMEMAAMEMMMEMEMMMMEE0ME.EM,MM,MMM.MEMM.MMM1EMM"MMmMEMoMMMMEMEEMMMMEEEMRmMMEEmEEEmMMlMMOMVM=AMiEtMMEE=MEEMMEE =MMMMMMEEEMRMMEEEMRMOEEEMMMMEEEMMEMMMEMRMEMMMEEEMMNEEENMMEEMEMMMEMERMMEMEEMMKEEMEEMMMEMMMEMUMMMEMMMEMMMMEMEMMMMEMMMMEEMMMMMEEEMMMMMEEMMMMMMEEEMMMMMEMMMMEEMEMMMEMEMEMMMNEMEKMMMEEME MpmMMMEEw.MMOMAMMWEMsAEoMWnmMNdWmlimEmiimlnoaumimmimMuiEem:TmZlo_IamREmIME_.ER.MM.ME.EE.MMEMEMMMMMMEMMMMMEMMmMEmMuMEmEMmMEoEmMMmMiMEsMMMMMMEMMMMEMMMMEMMMEMMMEMMMEMMMMMImIimEmuMmmE=oMEmMMmMEuMMmIMEIMRmMOoEMM'mMEMMmREEMoEMMmMMMmMMMMMuMMMMMmMMMMmMMMMsMEMMMMMMMMEMMMMMMMMEEMMEMMMONMOM piummumr.=-...mm MMMM im= MMMMMMM Ems MMMMMM Immommommosimmmummummwmummomomm MMMMM REME.Mi ERIAEMMEMEMEMEMEM MMMMM mmw....- ERENEMEMEMEMEMEM MMMMMM REMEMEMEMMIIEMMEMEMOMEMEMEMEME .. .-__. .T ..W.muumaNNIMIMMIMMI MMMMMM ME MMMMMMMMM MEM MMMMM EMMIUMMEMMEMENNEWER*BEMEMEMMEM 0 ERPNET-mAREEM_E.EM,M.M.M.M.M!mMuMmMMM mmammommommon ERMiElMtE7M.InE.R,EMMEMMMPMMZis MMMMM M M EMEMEMEMMEI EMIG- MMMMMMMMMMM =mum MMMMMMMM EMMEMEKKKAMMEMEMEME EMEREMEEM MMMMMMMMMM MEEKOMMMEMMEEMMEEEMKEMEEMMO imMSEVVRE 0 200 400 600 800 PLATE VOLTAGE IN VOLTS K -69087-72A363 /New Drawing. PLATE VOLTS 3.30-50 GL -807 ETI -165A PAGE 6 3-50 #GL -807 AVERAGE CHARACTERISTICS (E0 -= 6.3 VOLTS, SCREEN VOLTS = 300) 300 250 200 I 50 100 50 '10 +30 +2) 0 80 K -69087-72A370 *Revised Drawing. 160 240 320 PLATE VOLTAGE IN VOLTS 4-20-50 4GL-807 AVERAGE CHARACTERISTICS (Et= 6.3 VOLTS, SCREEN VOLTS =250) cr 250 La co I 200 2 la 50 La er 1) ti L O r-4 N r0n -I- N 0 Jr tA 4- 0 0 80 160 240 320 PLATE VOLTAGE IN VOLTS K-9033963 New Drawing. 10-8-45 GL -807 TYPICAL CHARACTERISTICS (E0=6.3 VOLTS, SCREEN VOLTS =300) 7 TYICAL CHARACTER ST CS F= yorr Eq = E.3 \ OLT 6 40 30 6 +3 20 +2.3 0 +10 0 0 5 K -69087-72A371 /Revised Drawing. 100 150 PLATE NAIOLTAGE IN VOLTS 200 4 20-50 eGL-807 TYPICAL CHARACTERISTICS (Et =6.3 VOLTS, SCREEN VOLTS -= 250) 70 60 50 40 4o 30 tP 0'1'30 20 +25 +20 - 10 .....\\...i\---(-4 +15 +10 *5 0 50 100 150 200 PLATE VOLTAGE IN VOLTS K-9033956 New Drawing. 10-8-45 GL -807 ETI-1 65A PAGE 7 3-50 GL -807 ETI.165A PAGE 8 3-50 ANODE TERMINAL GAP C1-1 .360"± .005" DIA. 'OUTLINE GL -807 PLIOTRON 2r MAX. DI A. 16 11M AX. DIA. 16 13" 32 BASE A5 -II II 5" 19 53-2- 32 3z32 K 63 3-50 (11M) Filing No. 8850 K-8639602 /Revised Drawing BASING DIAGRAM Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 3-30-50 GL -810 DESCRIPTION AND RATING ETI-166A PAGE 1 10-49 PLIOTRON DESCRIPTION The GL -810 is a three -electrode high -mu tube with a typical power output of 575 watts (ICAS) for Class C telegraph service. Because of its high perveance the tube can be operated at high plate efficiency with low driving power and relatively low plate voltage. The heavy duty filament, shielded at each end, conserves input power by eliminating bulb bombardment and stray electrons. The plate and grid leads are brought out to terminals at the top and side of the bulb, respec- tively a design which provides very short internal leads, low internal lead inductance, and permits compact high -frequency circuits. Maximum ratings apply up to 30 megacycles. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Filament voltage Filament current Amplification factor Interelectrode capacitances Grid -plate Grid -filament Plate -filament 10 volts 4.5 amperes 36 4 8 uuf 8.7 uuf 12 uuf ARatings completely revised. GENERAL ELECTRIC Supersedes ETI-166 dated 4-45 GL -810 ETI-166A PAGE 2 10-49 Mechanical Data Mounting position Net weight, approximate TECHNICAL INFORMATION (CONT'D) Vertical, base down; or horizontal, pins 1 and 2 in vertical plane 8 ounces MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS AUDIO -FREQUENCY POWER AMPLIFIER AND MODULATOR -CLASS B Maximum Ratings, Absolute Values D -c plate voltage Maximum signal d -c plate current Maximum signal plate input Plate dissipations Typical Operation Unless otherwise specified, values are for two tubes D -c plate voltage D -c grid voltage** Peak A -F grid -to -grid voltage Zero signal d -c plate current Maximum signal d -c plate current Effective load resistance, plate to plate Maximum signal driving power, approximate Maximum signal power output, approximate Averaged over any audio -frequency cycle of sine -wave form. **For a -c filament supply. CCS* 2500 max 250 max 425 max 125 max CCS* 2000 -50 345 60 420 11000 10 590 ICASt 2750 max volts 250 max milliamperes 510 max watts 175 max watts ICAO' 2250 volts -60 volts 380 volts 70 milliamperes 450 milliamperes 11600 ohms 13 watts 725 watts RADIO -FREQUENCY POWER AMPLIFIER -CLASS B Carrier conditions per tube for use with a maximum modulation factor of 1.0 Maximum Ratings, Absolute Values D -c plate voltage D -c plate current Plate input Plate dissipation Typical Operation D -c plate voltage D -c grid voltage** Peak R -F grid voltage D -c plate current D -c grid current, approximate Driving power, approximatett Power output, approximate f tAt crest of audio -frequency cycle with modulation factor of 1.0. **For a -c filament supply. CCS* 2000 max 185 max 185 max 125 max CCS* 1500 2000 -50 -65 110 100 115 93 2 2 6 4 60 60 ICASt 2500 max volts 185 max milliamperes 225 max watts 175 max watts ICASt 2250 volts -70 volts 100 volts 100 milliamperes 2 milliamperes 4 watts 75 watts TECHNICAL INFORMATION (CONT'D) GL -810 ETI.166A PAGE 3 10-49 PLATE -MODULATED RADIO -FREQUENCY POWER AMPLIFIER -CLASS C TELEPHONY Carrier conditions per tube for use with a maximum modulation factor of 1.0 Maximum Ratings, Absolute Values D -c plate voltage D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation Typical Operation Dc- plate voltage D -c grid voltage From a fixed supply of From a grid resistor of. Peak R -F grid voltage D -c plate current D -c grid current, approximate Driving power, approximate Power output, approximate CCS* 1600 max -500 max 210 max 70 max 335 max 85 max ICASt 2000 max volts - 500 max volts 250 max milliamperes 75 max milliamperes 500 max watts 125 max watts CCS* ICAO' 1250 1600 2000 volts -200 4000 370 210 50 17 180 -200 -350 volts 4000 5000 ohms 370 550 volts 210 250 milliamperes 50 70 milliamperes 17 35 watts 250 380 watts RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR -CLASS C TELEGRAPHY Key -down conditions per tube without modulation if Maximum Ratings, Absolute Values D -c plate voltage D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation Typical Operation voltage D -c grid voltage From a fixed supply of From a grid resistor of From a cathode resistor of Peak r -f grid voltage D -c plate current D -c grid current, approximate Driving power, approximate Power output, approximate CCS* 2000 max -500 max 250 max 70 max 500 max 125 max ICASt 2500 max volts -500 max volts 300 max millliamperes 75 max milliamperes 750 max watts 175 max watts CCS* ICAO' 1500 2000 2500 volts -120 3000 415 280 250 40 10 275 -160 -180 volts 4000 3000 ohms 550 500 ohms 330 350 volts 250 300 milliamperes 40 60 milliamperes 12 19 watts 375 575 watts ¶Modulation essentially negative may be used if the positive peak of the audio -frequency envelope does not exceed 115 per cent of the carrier conditions. Maximum ratings apply up to 30 megacycles. The tube may be operated at higher frequencies provided the maximum values of plate voltage and power input are reduced according to the tabulation below (other maximum ratings are the same as shown above). Special attention should be given to adequate ventilation of the bulb at these frequencies. Frequency 30 60 100 megacycles Percentage of Maximum Rated Plate Voltage and Plate Input Class B Class C plate modulated Class C unmodulated 100 80 100 70 100 70 80 per cent 50 per cent 50 per cent * Continuous commercial service. f Intermittent commercial and amateur service. GL -8 1 0 ETI-166A PAGE 4 10-49 250 200 oujc, w I 5 0 0 I 0 0 50 K-8639692 200 400 600 800 PLATE VOLTS GL -810 TYPICAL CHARACTERISTICS (E,---10 VOLTS D -C) 9-28-44 GL -8 1 0 ETI-166A PAGE 5 10-49 A GL -810 AVERAGE PLATE CHARACTERISTICS Et= 10 VOLTS D -C .. E wU-1 UJ 1.2 a_ :an z MEM' A alga.: MMEMMMEMM. MMMMMr1 II '..MEN tIF AEON --MP" M r ....: 0.8 I I r A EWA EN n . A , 70,..[ Mr III iM nmmiummi 1:41111 II, -J AMEW. . CL ..ill d!,=.11 ../1 EMMEN MM '..1 A MMEMMENEN . -.. iN . %. , INN M av M m M MMIUMME 0.4 MEMEL MMENNFAMEM MEMEIMEMEm 1 M Mar of.". MIMMFAMM.- - MMEUmr: pri..... ... . 1111M,i !.... MNMEEEN.IERmEiEte.E-lIdEMMMIEETEME-M.MMEOEElEEEmM .- ...11 ME0- MoMAIrMUmPgo_g.lEmEudM/MIN..FA.M.MmI.!s.M_mEumpMill ILE. MMMMMMMMMMM MEN EMEM . ....__--. MMMMMM ..."".0111 n=.2 MM Ni2524. FR MEMEIMMEMI MENNEN MEEMOMM Immamummimmul NEEMMMEISlmIA mmiumlmmmumummimuummmumluummm ENNMNEMIEMMM,EMIMMMMM mum mums. ummumm 111111 Illiiimum1 MMMMM IMEMEIMMIENI :11"""'"muEMMIXuEmEMMEIuNu Isms mu MEI MEE MMEENMEOM IMMO= immummuu IMMEEmmMsEuuMmmEmMmIEuMmmEmNm=IEuNmsEiEomTummmmismul I mum. MMMMMMMMM m MMMMMMMMM mmum umm MMMMM MMMMMMMMMMM ME IMMIMM 1 Ai mmuommmummormimmo imam mow ammaim momm mom mom MEMWFV" " ..... : Ili ME 111 IEMEIN 1 tYA" I 1 !MEI _AMAMMEMEMMEMI mg . 141111..=i rrusal rr.. 1.4 0 K -69087-72A103 ANew drawing. 400 8000 1200 1600 PLATE VOLTAGE IN VOLTS 2000 2400 2-6-47 GL -8110 ETI.166A PAGE 6 10-49 CAP NO. C1-6 .566 it.007" DIA. OUTLINE GL -810 2 A" ErAx ANODE TERMINAL I" 2 GRID TERMINAL I" CAP NO. CI -5 .566"±.007" DIA. 2g -8 JUMBO 4 -LARGE PIN BASE NO. A4-29 O,3"+!-re4: 0 + 4 10-49 (10M) Filing No. 8850 k1.867" MAX.DIA. FILAMENT TERMINAL t .I09"MAX. NC .687" N C FILAMENT TERMINAL K-9033819 Revised drawing. .971" DIA. 8-12-48 Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL -833-A DESCRIPTION AND RATING En -167A PAGE 1 8-48 PLIOTRON DESCRIPTION The GL -833-A is a three -electrode tube designed for use as a modulator, amplifier, and oscillator. The anode is capable of dissipating 450 watts. Forced -air cooling of the envelope is required at maximum ratings. The tube may be operated at reduced ratings without forced -air cooling. The cathode is a thoriated-tungsten filament. Maximum ratings apply up to 20 megacycles. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Filament Voltage Filament Current at Bogey Voltage Amplification Factor, E, = -20 v, Ib = 200 ma Interelectrode Capacitances Grid-Plate Grid-Filament Plate-Filament Minimum 9.5 9.4 31.5 5.5 10.1 6.4 Bogey 10 10 35 6.3 12.3 8.5 Maximum 10.5 volts 10.6 amperes 38.5 7.1 uuf 14.5 uuf 10.6 uuf Mechanical Data Mounting Position-Vertical, or horizontal with the plane of the electrodes vertical Required Air Flow to Envelope Maximum Glass Temperature 40 cubic feet per min 145 C Net Weight, approximate 1 025 pounds GENERAL ELECTRIC Supersedes ETI-167 dated 4-45 GL -833-A En -167A PAGE 2 8.48 TECHNICAL INFORMATION (CONT'D) MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS AUDIO -FREQUENCY POWER AMPLIFIER AND MODULATOR -CLASS B Maximum Ratings, Absolute Values D -c plate voltage Maximum signal d -c plate current* Maximum signal plate input* Plate dissipation* Natural Cooling CCS ICAS 3000 max 3300 max 500 max 500 max 1125 max 1300 max 300 max 350 max Typical Operation Natural Cooling CCS ICAS Unless otherwise specified, values are for two tubes D -c plate voltage 3000 D -c grid voltage -70 Peak a -f grid -to -grid voltage 400 Zero -signal d -c plate current 100 Maximum signal d -c plate current 750 Effective load resistance, plate to plate. 9500 Maximum signal driving power, approximate 20 Maximum signal power output, approximate. 1650 * Averaged over any audio -frequency cycle of sine -wave form. 3300 -80 440 100 780 10500 30 1900 Forced -air Cooling CCS ICAS 4000 max 4000 max volts 500 max 500 max milliamperes 1600 max 1800 max watts 400 max 450 max watts Forced -air Cooling CCS ICAS 4000 -100 480 100 800 12000 29 2400 4000 -100 510 100 900 11000 38 2700 volts volts volts milliamperes milliamperes ohms watts watts RADIO -FREQUENCY POWER AMPLIFIER -CLASS B Carrier conditions per tube for use with a maximum modulation factor of 1.0 Maximum Ratings, Absolute Values D -c plate voltage. D -c plate current Plate input Plate dissipation Natural Cooling CCS ICAS 3000 max 3300 max 300 max 300 max 450 max 525 max 300 max 350 max Typical Operation CCS ICAS D -c plate voltage D -c grid voltage 3000 3300 -70 -100 Peak r -f grid voltage 90 110 D -c plate current 150 150 D -c grid current, approximate 2 2 Driving power, approximate** 10 11 Power output, approximate 150 200 **At the crest of the audio -frequency cycle with a modulation factor of 1.0. Force -air Cooling CCS ICAS 4000 max 4000 max volts 300 max 300 max milliamperes 600 max 675 max watts 400 max 450 max watts CCS 4000 -120 120 150 2 14 225 ICAS 4000 -120 130 150 3 21 250 volts volts volts milliamperes milliamperes watts watts PLATE -MODULATED RADIO -FREQUENCY POWER AMPLIFIER -CLASS C TELEPHONY Carrier conditions per tube for use with a maximum modulation factor of 1.0 Natural Maximum Ratings, Absolute Values D -c plate voltage. D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation Cooling CCS ICAS 2500 max 3000 max -500 max -500 max 400 max 400 max 100 max 100 max 835 max 1000 max 200 max 250 max Forced -air Cooling CCS ICAS 3000 max 4000 max volts -500 max -500 max volts 450 max 450 max milliamperes 100 max 100 max milliamperes 1250 max 1800 max watts 270 max 350 max watts Typical Operation D -c plate voltage. D -c grid voltage Peak r -f grid voltage. D -c plate current D -c grid current, approximate Driving power, approximate Power output, approximate Natural Cooling CCS ICAS 2500 -300 3000 -240 460 410 335 335 75 70 30 26 635 800 Forced -air Cooling CCS ICAS 3000 -300 4000 -325 490 520 415 450 85 90 37 42 1000 1500 volts volts volts milliamperes milliamperes watts watts GL -833-A ETI-167A PAGE 3 8-48 RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR -CLASS C TELEGRAPHY Key -down conditions per tube without ,mplitude modulation Maximum Ratings, Asbolute Values D -c plate voltage D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation Natural Cooling CCS ICAS 3000 max 3300 max -500 max -500 max 500 max 500 max 100 max 100 max 1250 max 1500 max 300 max 350 max Forced -air Cooling CCS ICAS 4000 max 4000 max volts -500 max -500 max volts 500 max 500 max milliamperes 100 max 100 max milliamperes 1800 max 2000 max watts 400 max 450 max watts Typical Operation CCS ICAS CCS ICAS D -c plate voltage 3000 3000 4000 4000 volts D -c grid voltage -200 -160 -200 -225 volts Peak r -f grid voltage 360 310 375 415 volts D -c plate current 415 335 450 500 milliamperes D -c grid current, approximate 55 70 75 95 milliamperes Driving power, approximate 20 20 26 35 watts Power output, approximate 1000 800 1440 1600 watts ¶ Modulation essentially negative may be used if the positive peak of the envelope does not exceed 115 per cent of carrier conditions. APPLICATION NOTES Maximum ratings apply up to 20 megacycles. The tube may be operated at higher frequencies provided the maximum values of plate voltage and plate input are reduced according to the tabulation below (other maximum ratings are the same as shown above). Special attention should be given to adequate ventilation of the bulb at these frequencies. Frequency Natural Cooling 30 50 75 Forced Air Cooling 20 50 75 megacycles Percentage of maximum rated plate Voltage and plate input Class B Class C plate modulated Class C unmodulated 100 98 94 100 90 72 100 90 72 100 97 93 per cent 100 83 65 per cent 100 83 65 per cent GL -833-A En -167A PAGE 4 48 GL -833-A AVERAGE PLATE CHARACTERISTICS (Ef =10 VOLTS A -C) MMUIMIMMMIEIMMMMEEMRMEEMMEMMMIEMNMIIMMMMEEMMUMMIONMIMMMMIEUMMMMAUNMMMEUMMEMMEEMMENEIMMMMEENNEEMMEEMMEMMEIMEMMMMIEUMMMMIINNOIMMMMEIMMMEMMEUMMIEUMMEMMEMMEMMEEMMEEMMRIEUMM MOMMIIMMINIMMEMMOMMUMMOMMUMMEMOMMEMMEMMEMMEMEMMEMEMUMMEMMEMOMMEMMEMEMMEMMEMMEMMIMMEM MMEMMENIONMEMEMMEMEMENWOMMINUMMIMINIMMIMMEMEMMEMEMINIMMEMEMEMMEMMEMMEMEMMUMMEMEMEMMMEN MEMEMMEMMEMEMMEMENMEMMEMMEMEMEMMEMMEMMUMMEMEEMMEMEMMEMMEMMEMMEEMEMMEMMEMMMEMOMMOMM MIIIIMMEMMEMMNIMIMEMMEMEMEMOMEMEMIOMMEMEMMEMEMEMMEMMEMEMMEMMIIMMIUMMEMMEMMEMMMEMEMMEMMEMM MIIMMEMOMMEMMEMEMMIIMMEMMEMMEMMEMMEMMMEMMEMMENEMMEMERMEMMEMMEMEMMIOMMMEMEMMENNIMMEMMMEMM 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NammEoumMdmmUirMumMdmiEimnMmEokMimwPmuiImmMduMmnmEuiMmmEmuMmmmMmuOoimMmmMmmMmuEeomMmmMwmmE=oMomMamEmdmMooEumMmmmMmdmMomEiSmogOmmWnmoe=oamamrmmldoIomMmmmMmoOumiMmmMmnuEuMmimNmmImomOumMommMmeOmmMmuEmomMimMumImmmIumuMmMumImmmMoomMmmEumMmmiMomEnmMoiMmmmOummMumMomEmmMmmoMmEomoNmmmNmumOiIumMlmmMmmoEm MiSMIMMEMNIMMOMMEMm=limMEMMEMINWOMMEMEMMEMMIIMMOIVIMMEMEMMOMMEMMEMMEMOMMEMOIMMEMMEMOMMII MMIIIIMMUMMEMMOMM.millMEMMUMMEMMEMEMMEMMEMMEMMEMETimilIMMMEMEMEMMEMMOMMEMINIMMEMMEMMERMEMEMEM MmImNiCmEMmMoInNdIMiPmMmZuIMmMmEiMEuMmEmMoMEmMmMiEmMMmEuMmMmUMaMmImOMlMiEmMzPEiNmmmEuMEmMmEoNmNImMmIoMMmEmMoMmMEmMoMmEmMMoImNmIuMEmMmMmIUuMmMmEuMMmEmMiMnE 1 EE nd M MMEMMEMEMEMMINIMMINIMMEMMlligliMMEMMUMMAIMMEMEMEMWOWMUMMMEMMEMMEMEMMEMEMMEMMEMM 1m1w1o1r1AMmWmMoOmMMmOoMmMmEmMoEmMmEMoEmMmMTI=UaMmMmOMiMnOuMmMmEuMmMmEMiImNmIiInMiUmMmWOoMmMwEmMm4iMlRm=ZoImOmMiMlEmMmMmINuImMmMoEmMmOuMmMEnMiMmEmMiMmEmMiEMm miammommimmmimm=ammummommummomminommimmwm=kimmimmommommummommirmimmommin mmmuuimmmmmmosimtmmmommmomomommrmumomzmioimmdimomummmmoommmmmmuiunmmrmmiiinmnimim=mmwumimummmimmmiimnuuimmmomnmmrumimuamlmiammiuimmlmmmiumummmummmomumummmuemmminmmooummmmmmiorl_mimmmmiieru.mmlmmuumuummmmmmooommmmmm WilIMMEMMEMMINIMMIIMMEMEMMIM-MmenSIMMEMMEMMEMMEMEMEMMEMMEMMEMM0==.11.11MEMOMMEMMEIMMEMMO FEMMIIMMOIMMOMMIIMmT=AmOMMEMOIMMINIMMEMEMMEMEMMEMMERMIWItt=a4MOMMEMINIMMEMEMMINIMMEMMENNIMM 0 500 1000 1500 2000 2500 3000 3500 4000 PLATE VOLTAGE IN VOLTS K -69087-72A1 09 2-6-47 GL-833-A TYPICAL CHARACTERISTICS E, =10 VOLTS A -C a EN N ENE EM EM ENN E NEN M MM MM M MMKNU N N I IM NUMMIMMMMMMMMMMMMMMMMM1.1MMUMMEMENNMMMMMMMMMM1111.1...1MMMMMMENMMMMMMMMMMENEM 1.0 .... monommommoMMMMMMMMMMMMMMMMMMMMMMEMMMMMMpM M I NE ME NE MM EN M MMM M M\M ME MM EN MM MMM M MMM MM MMM MM I I MN EN NE EN MM MM MM M M MM MMM MM M MMM M MEM E N. . = MNNMENNMEMMMMMMMMMMMMmMuMmMEsMMMMEMMMMNMIM MMMMMMmoMMoMMMMMMMMMmomo mmoommommMMMMMMMMMMMMMM1MMMMpommosonmMMMMMmMmoonmm n m. m M IM I NE EMNN ENN MM MM M MM M I No M M M II EN MM M MM MM M M M E NI annommonMMMMMMMMMMMMMMmonMMMMMMMmoonMMMMMMMMKENNEENEMMMMMMNEENEEMMMMEMENEMMMMM mmi iommmommMMMMMMM 0.8 = mmonomommMMMMMMnkmo. myoMmM mMMomMMMMMMMMMMMMMmMmMoMmMoMoomsmmmoimmMmoMMmoMnMaMnmnnoMmMmMoMnMMMM=MmMoMnMoMmmannMiMaMMMMMMMMMMMMmMoMmmooonmomo MMMMEMMMENMMMMMMMNMMMMMMNMMMMMMMMMMMMMMM\MMMMENNMEMENEMMEMMMMMMMMMMMMMEMMMMMMMMMMMEMMENM.E= .........MMMMMMMMMMEW I E 1M E MM IM EN N M 1 M I IN M M " O 1 IIINLII%IMEANLEMMMMMMMM1 : EMM.MUENN MUNNE.MENNEEMMEMNI pm: oms: us mm onM MM M MMM M mm mo . 0.6 MIEN. LAMMMMMMMMENENNEMIOMENN.MMMMMMMMMMMMMMMMMMMMMMMMMMNIEMEN.. M IO N I IME MM MMMM MM NM EMNM EM MMMM MM MM MMMM EE NN NN EM MM EM NE NN IN N. IIb S M S" C I MM EM ENN MM MM NM M MM C : ih swim=MMMMMMMMEmmonsMMMMMMmos.!MMMMMMMMMMM=mai:MMMMMMMMMMMMMMMMMMmmmmommmom I mm mo m mm Mo Mm MmMo MmMM MM MM mMi M MMMM MM mM MM MMMm Mo Mn Mo Mo s ns . MM MMM M MMM M MM mg MM m m MMM M MM MMMMMMMMIMEMMMMMMMUNOMENN MW= B M MM MM MMM .. . ME C o MM M MM1 10. :MINNMMMMMMMMMMMMMMMMMMMMNEENMMEN 0.4 N MMMMM NNW= MMM EMMEN MMMMMMMMMMMMMMMMMMM NMN MMMMMMMMMMM MENNEN. CUMIN.. MMMMMMMMM MINNEMENIO MMMMM MMMMMMM SIIIIMMNME MMMMM ...MENNE MMMMMMMMMM NNW :IIN MMMMMMMMMMM MINNIIMENE IN= MMMMMMMMMMMMMMMMMMMMMMMMM NNMEENNINMMEL MMMMMMMMMMM ENNEEMNIO 0.2 mom MMMMMMMMMMM m MMMMM mourn . m . c,!. . M p MMM sommoomm MMMMMMM !mosso : monommonh....I ....rilll MMMMMM MIIIIMMENO MMMMM mom MMMMMMMMM mo:.nomm MMMMMM on MMMMMMMM monno..w MIIMMOIMINIM MMMMM NM : MMMMMMMMMMMMM MIIIMMINM.7111 M.MMnMMM 111.11111111111111MO MMMMMMM .742M[7111111110 MMMMM WM zgghm.soommmommm ;.... mono MMMMM mo MMMMM . .:.onsommonno MMMMMMMMMMMM ih.mt.thommons :Ammon MMMMMMMMMMMMMMM Rms.. m b .. -h- 7 ... .7. OM MMMMM MEM MMMMMM MEM MMMMMM Mi.Z.MMEMOMMIIII MMMMMMMM MMEMIIMME.Z. MMMMMMMMMMMMMMM MENNINNIMMMENNEN.72 MMMMMMMMMMMM 1.11MMENNOMINNMEN.i.MMEMMUI III m". ft.. Z7 MMMMMM nromonom MMMMMMMM ENII.!°11.1.0 MMMMMM MENNE smug ..".WII ..m. ft...!MAIII4 m.r_Ulff.V: iiiro.Commommommommmm MMMMM mu. --.mon MMMMMMMM MINNIINNEERENNEEN 1111111MMEMEMOMEMMOMM.:7='.. ZMIMMEM 0 500 1000 1500 PLATE VOLTAGE IN VOLTS K -69087-72A107 2-6-47 GL -833-A ETU -167A PAGE 5 8-48 GL -833-A En -167A PAGE 6 8-48 _5 67"+. 0,03" GRID TERMINA CAP J1-7 51+ 3" 8T - 16 4, 1.125 *812" AMAX. MIN. ANODE TERMINAL (NOTE I) .406"MIN. 41392" MAX. DIA. NOTE -I: THE ANGLE FORMED ON A PLANE NORMAL TO THE TUBE AXIS BY THE INTER- SECTION OF THE PLANE DETERMINED BY THE AXES OF THE FILAMENT TERMINALS WITH THE PLANE DETER- MINED BY THE AXES OF THE GRID AND PLATE CAPS IS ( NOT MORE THAN 5° NOTE -2: MOUNTING SHOULD PROVIDE LIBERAL CLEARANCE FOR THE SEAL -OFF TIE NOTE -3: THE PLANE THROUGH THE FLAT SIDE OF THE FILAMENT TERMINAL IS 900± 70 WITH RESPECT TO THE PLANE MAX. THROUGH THE AXES OF THE FILAMENT TERMINALS. .fir" ----FILAMENT TERMINALS .437" ±.003" DIA. FILAMENT TERMINALS .375" ± .004" PLANE OF ELECTRODES K-6966950 GL -833-A OUTLINE 9-3-48 Electronics Department 8-48 (9M) Filing No. 8850 GENERAL ELECTRIC Schenectady, N. Y. GL -851 DESCRIPTION AND RATING ETI-168A PAGE 1 5-51 PLIOTRON DESCRIPTION The GL -851 is a three -electrode, general purpose oscillator, or Class B modulator. The plate of this tube designed for use as a radio -frequency amplifier, tube is capable of dissipating 500 to 750 watts. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes 3 Electrical Filament voltage Filament current Average characteristics Amplification factor, Ib =300 ma Grid -plate transconductance . Direct interelectrode capacitances Grid plate . Input Output . Frequency for maximum ratings . .11 volts .15.5 amperes 20.5 . 15000 micromhos 47 micromicrofarads ....25.5 micromicrofarads 4 5 micromicrofarads 3 megacycles Mechanical Type of cooling . convection Maximum ambient temperature . 60 centigrade Net weight, approx 3 pounds Mounting position . . vertical, filament base (large) up or horizontal, filament in vertical plane (on edge) Shipping weight, approx. 9 pounds GENERAL f9 ELECTRIC Supersedes ETI-168 dated 4-45 GL -851 ETI-168A PAGE 2 5-51 TECHNICAL INFORMATION (CONT'D) MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS CLASS A AUDIO -FREQUENCY AMPLIFIER AND MODULATOR D -c plate voltage Plate dissipation D -c grid voltage Peak grid swing, approx D -c plate current Plate resistance . Load resistance . Plate power output, 5 per cent second harmonic 1500 -49 44 0.175 1800 3700 46 Typical Operation 2000 -65 60 0.270 1500 3100 100 2500 -92 87 0.240 1600 5000 160 D -c plate voltage...2000 2500 CLASS B AUDIO -FREQUENCY POWER AMPLIFIER (TWO TUBES) Max signal plate current, per tube* D -c max signal plate input, per tube* Plate dissipation, per tube* D -c grid voltage. -85 -111 Peak a -f grid input voltage . 250 245 Zero signal plate current 0.12 0.12 Max signal plate current 1.7 1.4 Max signal plate input* 3400 3500 Max signal driving power, approx. 20 12 Effective load resistance, plate -to -plate 2600 4000 Max signal plate power output 2200 2300 3000 -135 245 0.11 1.2 3600 6 5600 2400 CLASS B RADIO -FREQUENCY POWER AMPLIFIER Carrier conditions per tube for use with a max modulation factor of 1.0 D -c plate voltage D -c grid voltage. D -c plate current . Plate input . Plate dissipation Peak r -f grid input voltage Driving power, approxt Plate power output 1500 2000 2500 -60 -85 -110 0.62 0.475 0.39 300 280 270 40 25 20 275 300 325 Maximum Ratings 2500 volts 600 watts volts volts ampere ohms ohms watts 3000 volts 1 ampere 2250 watts 750 watts volts volts ampere amperes watts watts ohms watts 2500 volts volts 0.750 ampere 1100 watts 750 watts volts watts watts CLASS C RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR -PLATE -MODULATED Carrier conditions per tube for use with a max modulation factor of 1.0 D -c plate voltage 1500 2000 D -c grid voltage -250 -300 D -c plate current 0.9 0.85 D -c grid current, approx 0.15 0.125 Plate input Plate dissipation Peak r -f grid input voltage, approx 475 525 Plate power Driving power, approx. output..900 1250 75 65 2000 volts -500 volts 1 ampere 0.200 ampere 1800 watts 500 watts volts volts watts CLASS C RADIO -FREQUENCY. POWER AMPLIFIER AND OSCILLATOR Key -down conditions per tube without modulationT D -c plate voltage . 1500 D -c grid voltage -150 D -c plate current . 0.9 D -c grid current, approx 0.15 Plate input . Plate dissipation . Driving power, approx...55 Peak r -f grid input voltage, approx. 375 Plate power output . 900 2000 -200 0.9 0.12 425 50 1250 2500 -250 0.9 0.1 450 45 1700 2500 volts -500 volts 1 ampere 0.200 ampere 2500 watts 750 watts volts watts watts * Averaged over any audio -frequency cycle. t At crest of audio -frequency cycle. I Modulation, essentially negative, may be used if the positive peak of the audio -frequency envelope does not exceed 115 per cent of the carrier conditions. GL -851 APPLICATION NOTES ETI-168A PAGE 3 5-51 GL -851 can be operated at maximum ratings in all classes of service at frequencies as high as 3 megacycles. The tube may be operated at higher frequencies provided the maximum values of plate voltage and power input are reduced as the frequency is raised. (Other maximum ratings are the same as shown under TECHNICAL INFORMATION.) The tabulation below shows the highest percentage of maximum plate voltage and power input that can be used up to 15 me for the various classes of service. Special attention should be given to adequate ventilation of the bulb at these frequencies. Frequency. Maximum permissible percentage of maximum rated plate voltage and plate input: Class B telephony Class C telephony, plate -modulated Class C telegraphy, plate -modulated 3 7 100 88 100 75 100 75 15 megacycles 76 per cent 50 per cent 50 per cent 12 1.0 .8 w w Cl_ ilk cn SI «P -)r 0 <.6 1 -k 11\ co ,11) oN 0 zI- LL1 cr 4 V -0 0100 ke (1\ 'Po i"0 -k o--6 0 .2 6O --........ 0 limft, GL -85I AVERAGE GRID PLATE CHARACTERISTICS Ef = II V A.G. 1111411 2 K-6966442 400 800 1200 1600 2000 PLATE VOLTAGE 2400 2800 3200 9-25-44 GL -851 ETI.168A PAGE 4 5-51 GL -851 70 AVERAGE Ef . I I V.A C. 4 6.0 DIODE LINE E'29() GO cc h°. , 4.0 , 5 3.0 1 r 'zx ,.."7.../"41111111 2.0 Ir 1.0 ,'' . '' .000 E.9!t--59---' ______--------- E.9 ''.2-5 ER' --25 ER' 64' , \ 00 25 1141111111111111111111111.".- O 400 800 1200 1600 2000 2400 2800 3200 3600 4000 PLATE VOLTAGE IN VOLTS K-6966441 11-2-44 GL -851 AVERAGE PLATE CHARACTERISTICS 700 I its NE ININ NEENNE MMMMMMMM 1111111111MINMENIMEMENEN illiv MEM MMMMMMMMM /A AN/11111111 MMMMMMM MISESNIN11071111VMEISINENNEINEENNI A MIIINENNEE/r 60 0 I. 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IME1 1 200 SI EE SW M V All 111111111111111111111111111111MIWIMIMMIIIIMM11111111111111111111MMM/ EMINIIIINEVIIIIIIIMENENIFI , IMMMMM M EMENNIMNEMWMMMMMMMMMM MENNIMENNIMENIMINIMENIONNOMINEENEV 4111111ENNIENV I 111111111111111111111111111 MMMMMMMMMMMMMMMM EINEEM I MI All IMEMENNIIMI 1 I I I , A '.11ONEMONIUMITICI ,1/11111111101111111n1 MMMMM I, MMMMMMMMM 111111111111111 MEI ANNIMENV MMMMM IIII/EINENNEWEIIMMENIEMINEINNEEINIFI I A WINN= MMMMMMM NN/ MMMMM IONEMINEENNE I '/.....N riNENINEN 1 ME A MMMMMMMM V ANIIMENIVANIENNEEMIM IMENENIEN/11 MMMMMM / MENIUMINWE MMMMM EIN MMMMMMM WA II NI ,N1111111111 I I 111111111111111MAIMIIMIIIIMI AM111111111111111 11110111111111111 MI INIIIIMIP111111 MMMMM IIA4111111111111111,A111 Ir/ NI IM MI MMMMM MINEMINIIINNEN iiI1111M111M111M111MMiMl MMMMMMMM MME ENnI IIMEMIENEVAI MMMMMM IIINEEMENN'FA A 11 Y/ MMMMMMM 11//1111111111111ME MMMMMMMM ri MININENINIENNENNIIIIIIMEEMErNIMMINIMMENIMIIIIEN /1111111111111MNIMIMENEVAIMIENNEN! MMMMMMMMMMMMMMM MENNEN MMMMM 100 I I FM/ ,INIIINIMEINNICANNEMENIONIENNIIMINEC AM, A ,I MMMMMMMMMM 11111111111111,1 I .IIII I allINNIIII. rA rA r1 A r1 I mums MMM :41MMMM MENIFAINNIMMENV MMMMMMM 1114,4110111111111111U/ IriMmEy/ I I 'WAWIAN FAININEN MMMMM IIINIIIIIIIF A FA IIINIIIIIIIIIIII 4 IA FA r1 r1 4 II F, r 4 1......11 '4 U El MEV A ,I MIPIWA 4111111111111111In M .111.T 0 1000 2000 3000 4000 5000 PLATE VOLTAGE IN VOLTS K-9186105 12-10-45 GL -851 CONSTANT -CURRENT CHARACTERISTICS MMMMMMMMMMM EMENNEMENNEMEENN MMMMMMMM ENNEENNMEMENNEN'NEMENMMPMMKMNMUMMMMMMMMMEMMNMNMEMNMMMMMMMMEMMMEMNENNEEMNNMMMEMNMEMMMENMEMMMMMMMMMMMMMMMMMEMNMMNMEM IME MMMMMMMMMM NEMEMINNNENNEINNN MMMMMMMMMMMM MENNIMMINN MMMMMMMMMMMMMM MINN. MMMMMM 40 I MMMMMMMM MENN MMMMMMMMMMMMMM MINN MMMMMMM NEMENEMENEMENNIMEN NENE MMMMM NENEEMENNEMENNEMEENNINNMNEENNEENNENEN ENEE MMMMMMM NENEENNEMEN MMMMMM MENNE MMMMMMMMMMMM MEMENNEMENNNNENNEN MMMMMNNEMNNMMEMEMNMENNNEEMNMMMMM EENN MMMMMMM ENNUI NEEMMMENENNME =NMI IEEE= N 30 8 MMMMMMIiMMMM MN MMMMMMMMMMM =MENNEN MMMMMMMMM NEENNEEMMENNENENNEN MMMMM NENNEEMENNEMENNEMENEMENEMMEMENEMENE MIN MMMMMMMM NENE MMMMMMMMMMM EMMEN= MMMMMMMMMM NEEMENNOMMENEMENNNEMENEMEMENEEMENENNEEMENNEMENEEN MMMMM LIZINEZ . IMI ME MMMMMMMMMMMM INEMENNENNNNMEN IIMMMb M 10:"AIII%INIEEI=alMMaMmMmMaMMMMMMMMMMMMMMMMMMMMmMoMmMmEoNmEmMumMMmMoMmMMMMMMMMMNMNMiEmNmENuMmMmEoNmmMuMMmMmMumNmMaElNNlMiEfNiNlMlENiNfMfEiNlElNiEEi ummumummiftromq.nimm.. !IONNI.1, MM-.4-MMMM NEEMMENEENNEN MMMMMMMMMMMMMM NNEEMENEMENNENENNEEMENNENIENIMENNE EMENNENEMENNEMENN MMMMMMMMMMMMMMMM NM MMMMMM NUNN 20 441Elp;'411.1111:911,111111.:-.NMENP.:=1NENNI MMMMMMMMMMMM EMENEMENNENENN MMMMMMM NOM MMMMMMMMMMMMMMM INEINEMENNMEMENEEINE 6EMETION.UEW.IIMEMENENZ. W:f. MMMMMMMMMMMM NI MMMMMMMM EN MMMMM NMENNEENNEMMMMMMMMMM MEMENNEENNMEMENNEEN ENENCOME.7IEN.7. 4:::FINMENhanNENENNIEZ.MA MMMMMMMMMMMMMMMMMMMMMM ENNEMEINEMEINN MMMMM ENEMMENNEEN MMMMM MENNE NEEN4Z0AME1.71PNENZT1 M 'II MMM 117.2NEMENAft:TMENNENNZnNNMIN MMMMMMMMMMMMMMMMMMMMMEMENNEMENNNEENNE MMMMMMMMMMMMMM E NNIONEWEINNPiZqNNEWZNENNINN.;724 ..".-TPENENNft.=TENEMEMEMENNEENFT M E MMMMMMMMMMMMMMMMMMMMMM MMIMMININNEME NOME5' A :24MEN.7W W.T. ' .=!..NEENMNA4.-T ....tmlimmINNME MM LE MMMMMMMMMMMMMMMMMMMM NMNNMENNMENNN emmImmuuAmmm:ufammlg.ninomwinmp.iz:wnmiuumomm0nom.lmmi.mamzmlma.lTamimzommmiMimmMlmbmmtao.lMraTM.nlzmiM.im.muxm."m5i.m.mamuw..ma..n.;=i:.-mm.a.ce..tdT.o..m7rm.omim.lmmomn.e1p4-..m..i.=a:.m=r0mnmiMimMiMmi.Mum-mMm-p.uM.M.MM.MM-MM=MPLM2MMPMMiMMmMMiMNuMNmMMmMNiMNmMEmEMNiMNmMEuMNmMNuMEMmNEMmNMuMmMMmMuMMmMEMmMMiMIMNMMIMMNMMNMMEMMMM I0 Am M it; MMM 72.111EMEEND A 1:=91 MMMM WENN.Z.. ....11ZEN.NNIPEMI.G7"N.MNftaTMENOIMMN..-=Mw ....-.... -.TN. M .4=TT MM iiiiimma=nummmir MMMMMMMMMMMMMMMMMMMMMMMMMMMM immunimmomm gill. .m ill...7. Mi 11..MPE: ii"...TUNE MMMMM P, M G-11..-... ..=-..m MMMMMMM PENNE MMMMMMMMMMMMM NNIMENENNIMMENNEE im=6INENEM...!.. .... mi. PMEMMENNEMNINENNINEENNENNEENNMMMMMM WilliftZ.. .... ... .=7.... ._....,.... M 1... INDir''NNEMENN.7.". 1.=._ ....5NMENNEMENNEN 1....T .=2" .--:::: MM NINgalINNIVAMANEN MMMMMMMMMMMMM NNENNEMENNNE nlimilEEP.G-17.^1,2E-a=m1CM=..16=7C=7=2====;47.7_71=711===E-....7.7-7.1====19MNMAMENNNOMMINENEINNININEN MMMMMMMM r:.<41 11.=0NMEN11.1". .7.71T .7.= 1.=MMENNE INNNU.=. MMMMMMMM NOMMN.Z11.0MON41.-. .... M Z=UNMENNMEEMENNI.="11141Z= mo.ln NUMMI. MMMMMM NEN:N=I11NNEEWMaElN.ENMNENNMiEENNNN.EZM.ETN.NEEN.N7I.ENZNnNoNINNNZNIETE.NINN.EZN.NME.EMEN.NENiNiEiMENNMaM=MnMm ftW.T.NNEEN MMMMMMMMMMMMMMM NONNI= i"..'.. ZIT.INMEENNIENNZ.MEN..=.T7W2O.N.1.= ii.MNIMINENNI MMMMMMMMMMMMM EMENNEMMENNENEME ..Z=_ m4LTTNINNIN.=, .1.= ...... ...MUNE.. -PENNE= MMMMM EMMEN MMMMMMMMMMMMM IN W..'.111SEMENWX"mNOMINNIEMENN MMMMMMMMMMMMMMMM MMEM MMMMMMMMMMMMMM ENNEMEMENEMENN MMMMMM NEMENNENEN.W.M.. .42,UN1MNR14==o1 - I00 MEMO MMMMMMMMMMMMMMMMMMMM NIMIN MMMMMMMMMMM MENNNNOMMENNMIMMEENEN...' 4".... ....., NM MMMMMMM EN MMMMMMMMMMMM MENNEN MMMMMMMM NEENNEMEMENENNEMENNI '-'..-..-.MN MMMMMMMMM liCEMENNENENNENEENNEE Z.UN MMMMMMM MENNEN MMMMMMM NEEN MN Wa. mom MMMMMM MUM. MMMMMMMMMMMMMMM ENNOMINNMENNENNNIMMENN MMMMMMMMMMMMMMMMM IIMMN MMMMMMMMMMMMMMMMMM EMMENNNENNMENNMENNEEMMEMEN MMMMMMMMMMMMM NUMMEMMEMENEN MMMMM MMMMMMMMMMMMMMMMMMM 200 MMMMMMMMMMMMMMMMMM ENNMEENNEENNEINNEEMENNEEMENEMENNEEMENNMENNNNEN NENNEENNN MMMMMMMMMMMMMMM NENE MMMMMM EMMEN MMMMMMMMMMMMMMMMMMM NENNEEMENEMENNEMEMENENNMN MMMMMMM EMMEN= 11 0 1000 2000 3000 4000 K -69087-72A404 PLATE VOLTAGE IN VOLTS 9-14-50 /New drawing. GL -851 EU-168A Page 6 5-51 FILAMENT TERMINAL OUTLINE GL -851 PLIOTRON GRID TERMINAL FILAMENT TERMINAL BASE 3117 3" 3 -4 DIA. APPROX i" 6 1.73- MAX.DIA. )0.a 172÷- 81 5-51 (1151) 2 -i2" DIA-APPROX. \-1 BASE 1902 ANODE - TERMINAL K-2636625 Tube Divisions, Electronics Department GENERAL d ELECTRIC Schenectady, N. Y. 9-23-44 GL -862-A DESCRIPTION AND RATING ETI-169A PAGE 1 5-51 PLIOTRON DESCRIPTION The GL -862-A is a three -electrode power tube cooled and is capable of dissipating 50 to 100 designed for use as a radio -frequency amplifier, kilowatts, depending upon the class of service in oscillator, or Class B modulator. The plate is water- which the tube is used. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Filament voltage Filament current at bogey voltage Filament starting current Filament cold resistant . Amplification factor, Ib = 3 amperes, E, = -50 volts d -c Interelectrode capacitances Grid -plate Grid -filament Plate -filament 'Completely revised. Minimum 199 Bogey 33 207 0.018 45 54 69.5 43 53 3.0 4.5 Maximum 34.6 volts 215 amperes 360 amperes ohms 85 uuf 63 uuf 6.0 uuf GENERAL ELECTRIC Supersedes ETI-169 dated 4-45 GL -862-A ETI-169A PAGE 2 5-51 TECHNICAL INFORMATION (CONT'D) Mechanical Data Mounting position-vertical, anode down Type of cooling-water and forced air Water flow on anode Maximum outgoing water temperature Air flow To bulb To stem Gasket-Cat. No. 5182028P1 Net weight, approximate MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS AUDIO -FREQUENCY POWER AMPLIFIER -CLASS B Maximum ratings, absolute values D -c plate voltage Maximum signal d -c plate current* Maximum signal plate input* Plate dissipation* Typical operation Unless otherwise specified, values are for two tubes D -c plate voltage D -c grid voltage Peak a -f grid -to -grid voltage Zero -signal d -c plate current Maximum signal d -c plate current Effective load resistance, plate to plate Maximum signal driving power, approximate Maximum signal power output, approximate 15-25 GPM 70 C 15 CFM 3 CFM 30 pounds 15,000 max volts 7.5 max amperes 100 max kilowatts 50 max kilowatts 12,000 volts 0 volts 2000 volts 3 amperes 13 amperes 1800 ohms 450 watts 90 kilowatts RADIO -FREQUENCY POWER AMPLIFIER -CLASS B Carrier conditions per tube for use with a maximum modulation factor of 1.0 Maximum ratings, absolute values D -c plate voltage D -c plate current Plate input Plate dissipation Typical operation D -c plate voltage D -c grid voltage D -c plate current Peak r -f grid voltage Driving power, approximate Power output, approximate 20,000 max volts 5 max amperes 100 max kilowatts 75 max kilowatts 12,000 -100 2.8 500 0.5 11 15,000 -150 3.5 625 0.75 17.5 18,000 volts -200 volts 4.2 amperes 750 volts 1.1 kilowatts 25 kilowatts PLATE -MODULATED RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR -CLASS C TELEPHONY Carrier conditions per tube for use with a maximum modulation factor of 1.0 Maximum ratings, absolute values D -c plate voltage D -c grid voltage D -c plate current D -c grid current, approximate Plate input Plate dissipation Typical operation D -c plate voltage D -c grid voltage D -c plate current D -c grid current, approximate Peak r -f grid voltage, approximate Driving power, approximate Power output, approximate 12,000 max volts -3000 max volts 5 max amperes 1.25 max amperes 60 max kilowatts 50 max kilowatts 8000 -700 4 1 1700 1.7 24 10,000 -750 4.5 1 1850 1.85 34 12,000 volts -800 volts 5 amperes 1 amperes 2000 volts 2 kilowatts 45 kilowatts GL -862-A ETI-169A PAGE 3 5-51 TECHNICAL INFORMATION (CONT'D) RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR- CLASS C TELEGRAPHY Key -down conditions per tube without modulationli Maximum ratings, absolute values D -c plate voltage D -c grid voltage D -c plate current D -c grid current, approximate Plate input Plate dissipation Typical operation D -c plate voltage D -c grid voltage D -c plate current D -c grid current, approximate Peak r -f grid voltage, approximate Driving power, approximate Power output, approximate 20,000 max volts -3000 max volts 10 max amperes 1 max ampere 200 max kilowatts 100 max kilowatts 12,000 -800 6.25 0.8 2050 1.6 50 15,000 18,000 volts -900 -1000 volts 7.5 8.33 amperes 0.85 0.9 amperes 2300 2550 volts 2 2.4 kilowatts 75 100 kilowatts * Averaged over any audio -frequency cycle. t At crest of audio -frequency cycle. 'Modulation essentially negative may be used if the positive peak of the audio -frequency envelope does not exceed 115 er cent of the carrier conditions. APPLICATION NOTES Plate Series Protective Resistors (see paragraph describing plate circuit under Installation in the Instructions.) SMerieasxreisimstoru.m power output of rectifier....10010 20 250 40 50 ohms 640 1600 kilowatts 2000 1600 GL -862-A CHARACTERISTICS 33 VOLTS A -C) 12 00 800 400 K-6966424 f Revised. nig MMMMMMMMMMMMMMMMMMM CNN 11111101011 PLATE VOLTAGE IN KILOVOLTS 12-10-45 GL -862-A ETI-169A PAGE 4 5-51 225 - (r) w K- - Wa a z F150 Ej sx rr 0 - zI --w Q _1 Li 75 GL -862-A Fl LAMENT CHARACTERISTICS ..- COLD RESISTANCE OF FILAMENT= 0.014 OHMS 200 tr) 100 w < 50 0 V) 20 10 5 GL -898-A EMISSION CHARACTERISTIC 2 K-8074623 10 20 FILAMENT VOLTAGE IN VOLTS 1 30 20 25 30 35 40 9 26-44 Fl AMENT VOLTAGE IN VOLTS (SINGLE-PHASE FILAMENT EXCITATION) K-8074655 1-9-46 30 25 cs) . iu 20 z cc 15 U 1 10 0 5 I% 1500 1400 1300 1200 GL- 862-A, 898-A AVERAGE PLATE CHARACTERISTICS E f = 3 3 VOLTS A- C 1100 1000 900 800 700 600 500 GR I D VOLTS 400 300 200 100 0 -100 -200 0 K-6966423 5 10 15 PLATE VOLTAGE - KV 20 1-9-46 1 i I I I I 1 GL -862-A TYPICAL GRID -PLATE TRANSFER CHARACTERISTIC E1= 33 V. A -C GL -862-A ETI.169A PAGE 5 5-51 1500 GRID VOLTS 14 5 13 \LL 10 6 0 200 400 0 ,ka,,,,, vps..,,a 7',0..0600 -5 0 K-6966425 5 10 PLATE VOLTAGE IN KILOVOLTS 15 9-25-44 GL -862-A ETI-169A PAGE 6 5-51 3" 4 FILAMENT TERMINALS 28 *OUTLINE GL -862-A PLIOTRON 7" STRANDED CABLE DIA. APPROX. A BASE 3908 FLEX. RIBBON I4X.015 APPRO:.2F-195S"- -+2Ii-" 718111F21X6.1D )z( o 0 0 0r--- GRID TERMINAL 3 TI MAX. I" MAX. 1°IMAi 13"MIN. 68i" MAX.DIA. 8 3i t3 .570"± .020" 2., ir+ 516-is DIA' 4116± ANODE 2FT.5i i" 5FT.1MAX. 144--116 K-3846052 +Revised. 551 (11N1) 4.125"MAX. DIA. 6-7-45 Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL -880 DESCRIPTION AND RATING ETI-170B PAGE 1 5-49 PLIOTRON DESCRIPTION The GL -880 is a three -electrode tube designed and capable of dissipating 20 kilowatts. The cathfor use as a radio -frequency amplifier, oscillator, ode is a pure -tungsten filament. Maximum ratings or Class B modulator. The anode is water-cooled apply up to 25 megacycles. *TECHNICAL INFORMATION These data are for reference only. For design informaion refer to specifications. GENERAL Electrical Data Minimum Filament voltage Filament current 300 Filament starting current Filament cold resistance Amplification factor, Ib =2.0 amp, E, -100 v 17 Interelectrode capacitances Grid-Plate 21 Grid-Filament 28.8 Plate-Filament 1.0 Technical Information changed throughout. Bogey 12.6 320 0.003 20 24 35 2.0 Maximum 13.2 volts 330 amperes 480 amperes .... ohms 23 27 uuf 41.2 uuf 3.0 uuf GENERAL ELECTRIC Supersedes ET/ -170A dated 12-48 GL -880 ETI-170B PAGE 2 5-49 TECHNICAL INFORMATION (CONT'D) Mechanical Data Mounting position-Vertical, anode down Type of cooling-Water and forced air Water flow on anode Maximum outgoing water temperature Air flow (to bulb and seals)* Maximum glass temperature Gasket Type No. JTC-11 Net weight, approximate 20 gpm 70 C 20 cfm 150 C 7 pounds MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS AUDIO -FREQUENCY POWER AMPLIFIER AND MODULATOR -CLASS B Maximum ratings, absolute values D -c plate voltage Maximum signal d -c plate current Maximum signal plate input Plate dissipation Typical operation Unless otherwise specified, values are for two tubes D -c plate voltage D -c grid voltage Peak a -f grid -to -grid voltage Zero signal d -c plate current Maximum signal d -c plate current Effective load resistance, plate to plate Maximum signal driving power, approximate Maximum signal power output, approximate * From a 3 -inch diameter nozzle. t Continuous Commercial Service. Averaged over any audio -frequency cycle of sine -wave form. CCSt 10,500 max volts 5 max amperes 40 max kilowatts 15 max kilowatts CCSt CCSt 7500 -340 1450 1.0 6.7 2300 490 31.5 10,000 volts -450 volts 1680 volts 1.0 amperes 7.0 amperes 3100 ohms 540 watts 46 kilowatts RADIO -FREQUENCY POWER AMPLIFIER -CLASS B Carrier conditions per tube for use with a maximum modulation factor of 1.0 Maximum ratings, absolute values D -c plate voltage D -c plate current Plate input Plate dissipation Typical operation D -c plate voltage D -c grid voltage Peak r -f grid voltage D -c plate current D -c grid current, approximate Driving power, approximate§ Power output, approximate CCSt 10,500 max volts 4.0 max amperes 32.0 max kilowatts 20.0 max kilowatts CCSt CCSt 7500 10,000 volts -340 -460 volts 570 595 volts 3.3 2.75 amperes 0 013 0.009 amperes 1250 900 watts 8 9 kilowatts PLATE -MODULATED RADIO -FREQUENCY POWER AMPLIFIER -CLASS C TELEPHONY Carrier conditions per tube for use with a maximum modulation factor of 1.0 Maximum ratings, absolute values D -c plate voltage D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation Typical operation D -c plate voltage D -c grid voltage Peak r -f grid voltage D -c plate current D -c grid current, approximate Driving power, approximate Power output, approximate CCSt 10,500 max volts -1200 max volts 3.6 max amperes 0.8 max amperes 36 max kilowatts 12 max kilowatts CCSt CCSt 7500 10,000 volts -1000 -1200 volts 1560 1840 volts 3.0 3.6 amperes 0.57 0.64 amperes 850 1100 watts 16.0 27.0 kilowatts TECHNICAL INFORMATION (CONT'D) GL -880 ETI-170B PAGE 3 5-49 RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR -CLASS C TELEGRAPHY Key -down conditions per tube without amplitude modulation it Maximum ratings, absolute values D -c plate voltage D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation Typical operation D -c plate voltage D -c grid voltage Peak r -f grid voltage D -c plate current D -c grid current, approximate Driving power, approximate Power output, approximate CCSt 10,500 -1200 6.0 0.8 60 20 CCSt 15,000 max volts -1600 max volts 4.5 max amperes 1.0 max amperes 67.5 max kilowatts 20.0 max kilowatts CCSt 7500 -600 1250 4.8 0.79 920 24.0 CCSt 10,000 -800 1460 4.5 0.78 1000 33.0 CCSt 10,000 volts -1000 volts 1830 volts 6.0 amperes 0.8 amperes 1500 watts 40.00 kilowatts t Continuous Commercial Service. § At crest of audio -frequency cycle with modulation factor of 1.0. 7F Modulation essentially negative may be used if the positive peak of the envelope does not exceed 115 per cent of the carrier conditions. These ratings apply only at a frequency of 1500 kilocycles or less. Maximum ratings apply up to 25 megacycles. The tube may be operated at higher frequencies provided the maximum values of plate voltage and power input are reduced according to the tabulation below (other maximum ratings are the same as shown above). Special attention should be given to adequate ventilation of the bulb at these frequencies. Frequency 25 50 100 megacycles Percentage of maximum rated plate Voltage and plate input Class B-Maximum plate voltage Maximum plate input Class C-Plate modulated Class C-Unmodulated 100 80 100 94 100 72 100 75 60 per cent 75 per cent 45 per cent 50 per cent GL -880 ETI-170B PAGE 4 5-49 GL -880 CONSTANT CURRENT CHARACTERISTICS E, = 12.6 VOLTS A- C NINNINIIIMENINMENNENNINNEINMEMBNININNNON IIIMInuliran a 0 1600 1211.1.%1V4V:=11:=1111=Zigillialti nitailankri WM 1200 wNiru4in7a,7ki5lli14"0=I14M167P34141.VVAMNPA7RXM2II62t0i:r-1.l.11aE..MCa.dNra.aiai.n1i.ll.ia=up..n1ri1nn1i1:nIm,.nIe.N1lipiraE.s.rl1gIziVF.iul.ElR.in.aL.Il.rMlE.ai.m.LMn..uIMOllilSI..lNu.S.=.i4-l.OlqiNilm.=lMEum1Em1rT.m3.a.1u:irEmoriEpbuuiN.n-l 800 OUR RIS191111MSERTAMMUCTIJ 1111111111111NriMMINIMINOMMIMMIAMMILIMIEIfNfilItNlqINNrINiMSiInNg i tfile. IININNNENNII agglININININNINNEMNIMMINNINNMINN WilNAOl MMIYIININNIIMNMININIIAIINWNOINMIN111N1IIIN1INI1M1IN.M1W1IIMNIIIMINIINIIIIIMNIIMNIIIMINIEIIIWNIIIMIIIIEMINIIINNIIIIMNNNIMMMIIIIIIIIINIIMN==OMMMNNE IMMO tiFICZOLITMUMEME=1111:krannaallahaMUMIUMMUIT=12011112. NMI 111111111,/ ,PIIMIIIIMI1111111111111 7.11111,11111111311 Mgrinneemnimais 111111.11111MIN1111111111111111NIMINIIMWIIIIUIMWNENMI imIN1MMnMM=mINi=MIOmoNENNmIIoM//=NpNoIm2AaNr,ANEINmiiNNAcNINNAe7iNaNNNKImuArUIIMrNMAInA,AAp,NSgNLMMaMImaMWmIPIWNKmmNoMIIiEANNoZNo'.aNPMNNNmNIIIESsNNImNmIN:&IIMN°LOu,Z4oIVM1mIIN1NNMN1LiI11msNNN1Nk:IM1MiMMIoIo1TINUMmMmnLNhI1E1IOIa_oIIu1INM7mlNIi'NsINmNNuEIoNNiIIN1NNMm1IrINNIN1NoEImI1INEONNIn1MiINN=NNNNnI9NIINNNNeNN1I1IIINEmINNMNN1NNO7INIIIuN1NIMINNN1NmNIE1NIMONNI1NNIuIN1NiNINlNN1tImiIINNl1INIIIlMNNNiI1NNIm1NINNININ1NNNIIm1NNNIN1OININNI1uIINIINN1INIINnN1NINNIN1NINnIIN1NIMININiNmNNIINNI4NIIDIN4IINNNNiNINIMNNEiOmIINII1mi1NNN1mI1e1IM1mI1N1NNI11uN1Ij11NINuI1NmMS1N11I11s1NII11mNNN111m1N111NN1Iu11N1I11N1sONm111N11Ie11NNN1EmNI1IMNN1IM1RNmNI1N1NINNN1MINN1No1II1NO1IMINm1N1NN1M1INI1N1NIIo1NMI1IM1NNI1mN1II1MINE11IN1Ni1NmI1N1NI1N1NI11NNuENN1II1ImIIININN1NN1IIINNNuMN1I1NITmI1NNINNh1IMIIINNuNNNENIIMmNNNNNNIMIIIIIImNINNMMMIINNmIPININEIm1MNMN111iINnIII0NNNI1NNMoI1INIII1NNNNmIM1ION1IIEIN1NNMmNI1NNINMIMNNEIMu1IUN0MNNIm1NNN1NMIINNNIImIOINIMIMININNMMeNNI=M=IIMMmINMNNRMNIEEMIiNNoMImIMMMMEIEwMONiI pp 144 SIVJAI, .711,NI12IN wmnag: - plmit.NNilNmNINcIFOk,Mg.mI.N1wI1N1s1r44u;1, 4nI1mtA.o7mir-a.i.l.-a...Ai-dmiAninmaei4mnr,mr aiinnummUiummsamigninnnnmiommi smmoumamrMmnuEammNmoiusmimmmAmatlmWowamoi mmmoemmmmmiuudmimmeunoawmmnliomnmmamomwi. liniaVrAtiltIck4ur..i..1.rialsV.A.41414,iltNes171.9.11,011191ELVESSIMENnuirhEALI 4 trigraraiggatizos41141-MrrkirezrzmllignertinabunriquanIEEPn- :i. ..1...1.1. 1,..,wit 14. ....... aiyIgMtaI.ijMt.g-i.ZUiT.iP.Ei1IiCITiA1r.-iUN0I-A-N1.'-lr-,fl4-4iaG-l11,gC1R..l1w-i.10-a:1.-4f1w.4t7l1.l.4i_.i.i1MrLl5-1aI.1Mm1..li.aml-ili..iGi.g..a"=..=r..g9.oil1,.Ii1rtmmNM1a.io11mimm1Nl11mmA1om,I11di.ra1.I.S1--itM121z.aL1lmn61a1a.u7A.7rm7m..n..,1m1-t1aii-1ieN_4mi1niMmmn4mimIuf1aetaar4Mivmria=2i.mli;_SFaa1.mr4M.oN.4mR.mWe1IAMm1iI.ml.IV=.i4Io-N;AMr.-2ea.e-.iid5n_im_.=Arimi.,aa..hN..._miM.i.6WIa._.i-Cl.1-irI.i.4l1.ItlAiA.:kin.Mu:.r1m,1=Iu4neuNN1m1N..l1i1In.m11..1.m.2.4IN.1u1I1.Nil1=._IiN.6,mi.I1"N..i.N",.1iM1.I"Ni.1LN"m.II".NI.I'Nm.I"IEi,M,mNmMoINImAEIINmC1NEL.I.NI.EIM.N.mINE1MIVIN.NN1I.NEN4mGIm4II_--: IIIMICAMEWM"'BORPIW-tretrimmjesi ...im...p.. Kamm ....1.151s. mairisin%-em,..NriariMPIREgsI FinaniffiftMilibiLt 4 -w! -Qmati-parra..- aillima: -400 NININIINNI . - 800 -r.N.0NI6N..NI=.NEI3N.Ir9NN.aNN.I0nOU.,NN.EgII.M.NNl0iNN.lNOImIiNlNlE-FsiLfoo4i.I.i1lN1IldrE..I-.Ie1.iIrmm1C1a1l11geR"1mNiN1rlOIN_1asu..N6_.MIrIim.Mn.IiNM..oI.I.eEIN.Er.n.iiE..1rup11aM.11gi1dnIu1L.r.Iei.m:ti-ili-rmmslI-aNni-Niilm-aM.lE..Ii.-alI.EiIiAtrItPlIloilItlNpIedIlE.iI.Yi.-ir.hm.EstoiaRIllarkiiiiNmi_riiii-.ees.m4iramg.01nee1lul.m0mi.gm,:iiroeibsr.m.i1al1l4g.1a:i 8 12 16 20 K -69087-72A244 Revised curve. PLATE VOLTAGE IN KILOVOLTS 7-21-48 A GL -880 GRID CHARACTERISTICS E, = 12.6 VOLTS A -C 12 01? II !I Mira .1.1 ,11.1 11111.11 10 8 6 4 2 0 0 2 K -69087-72A245 A New curve 4 6 PLATE VOLTAGE IN KILOVOLTS 8 10 7-21-48 GL -880 ETI- 170B PAGE 5 5-49 A GL -880 PLATE CHARACTERISTICS E,=12.6 VOLTS A -C AAIMPEJ :.MEAsEENO MWAUEREIMT.A1 . : EMME = A.MILAWEEri MEMNNEEM ME, AMMAEMMU NM rSlIPA 28 N MEAMICEMEr ZIAWAIMA /MMEN IVAMAEMEN NAHISMU A EMMEN/rAiuMU Ammramormim. AMWA imumummn rA 24 MEMMCIMMliMMAEIVMMIIIIIAMMMAM ITAIVAMNMEN !moor. ANN 'MIAMI EFAIMEMUMW ..r.MONO4 IF/EAAMr. IIMAWA IA N 20 VEAVAEN WAIN AA IWAMN N JWA.WAON.WA : MEMMIEEAnM EMEISIMAM M A 16 IIMEMICEIMMEEN =EMMIIA 'EAN '4ENNMEMEWAM A MMMMM WARM r 1 IA N EMMA, =W MEME rmour, 1 EMMEMMIMAMEUMMEMFA NA EMMA 12 BMW MIA MMEAVA mminimmu MIIMSAMETAI EMBI o=mlmiummonr4 EMI "1112MMMEI 8 .==.IMiimUNaMmMA EN=MEMIMEEWMIMA !MIMI 1rAmiummum EMMEN: '4 MIWA ; 4 WminrIAMmMmMoOmPMmNoamArMiMmmMuEmMERLEmow' !.- MAME MEN,AIMME MUM NM MO!AimmimMm IIIMAEMMEMEMP' pgmagniiumm_.i0kmmraimppr-oAMy-ogor% I ..r.;,axidWri.riuriale--mitila . ''..-- 0 : .. : mull ME MEM =MEIN MICEMEMENIIIIM 1E1M1M11E1N111WESEMIIMMEIIIIMME :MEI 6111MM% MI 'MMEEMM M IMEMEEMEMNMEEEMNEMEMIMMIIMMEEIEMMMEEEMMMMEEMMEMMEEMMEEMM 1 1 immommamomEmMoMsEmN EummmmMoMoMmMmMMimM MMMMM NAN NEMMMEMM17.1. N N MMEINEANM.MEEEMMEEMMEENRMIE4MMTEMEEMMM= MMEMMMI .mmummommommMNEmRoEm 1 : 4 ENEMAIF Armimmordmom MEM MIEWAMMIIN AM 1 immmummumm4Kwmormsammi mmommimmummmmommmimmmemmmoummsm EMMENEINEEE 4 EMEMEIMMEMMEMM 1 MMM 1 mEmNAmmill Im mil MENNEN NNEMEAS INNEN: MEI 1, 4 REMEMEMMENO imm wi1n1i1ElMMiEEmMMImMMEmIMuNMIMInEiMmEmMimmuommmmoEmmmoommi Imo!i.i..rimmum.mrpoamlaimmommmimiqomimmimimioimmmmmmloimlmuommmmoommoln IEMMWA UN AA I.r.mi.mmmolmm .... 0 p10 lummmol mmuummm1 mimmimmul MMMM mil MMMMMMMM AmmommumiNsUMMI FAME MENEM: A 4 1r A 'Adl rammmoummmimmaimmmmimom: Ok m111111 1 Aimmummr4 namemommorsA !AMIE !I" "-AIMIIIImm, -samirmiww: ICC A .all MENEM MMM _ MM MM.. AMMEEEMM4. gyp= =- _. r.._tr. m11.-. ..- M !!! 8 12 16 I 20 PLATE VOLTAGE IN KILOVOLTS K -69087-72A243 New curve. 7-21-48 GL -880 ETI-170B PAGE 6 5-49 FILAMENT TERMINAL GRID TERMINAL '56" MIN. STRAIGHT SIDE 81.+1. 16 - 16 OUTLINE GL -880 PLIOTRON 2-er GRID TERMINAL FILAMENT TERMINAL 3" .4-.4379±.007" DIA. NOTE: THE TUBE BASE SHALL BE CAPABLE OF ENTERING TO A DISTANCE OF 5/s" IN A FLAT PLATE GAGE HAVING FOUR HOLES .536" .001" DIA. ARRANGED ALTERNATELY ON TWO CONCENTRIC CIRCLES 2.125" t .001' AND 2.375' .001" DIA. AT ANGLES OF 90° 10'. ,MAX. DIA. DIA. it 8 K-5965320 Revised outline. 5-49 (10M) Filing No. 8850 14-3.170"+.035"-4-1, II I DIA. I I II II I --4.0 62'11.0 4 5 DIA.' II APPROX. 4.1871'°32ID IA. **MIN. 5.750032" DIA. I ;"ANODE 8-1 8.45 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL -889-A DESCRIPTION AND RATING EV-171A PAGE 1 8-50 PLIOTRON DESCRIPTION The GL -889-A is a three -electrode power tube designed for use as a radio -frequency, amplifier, oscillator, or Class B modulator. The plate is water-cooled and is capable of dissipating 5 kilowatts, depending upon the class of service. The design of the mount and terminal connections minimizes lead inductance and makes the tube particularly suitable for high -frequency applications. GENERAL TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. Electrical Data Filament voltage Filament current at bogey voltage Filament starting current Filament cold resistance Amplification factor, at It, = 1.0 amp. E, = -100 volts Interelectrode capacitance Grid -plate Grid -filament Plate -filament *Completely revised Minimum 110 Bogey 11.0 120 0.008 Maximum 11.5 volts 128 amperes 180 amperes - ohm 17 21 25 15 17.5 20 micromicrofarads 19.2 23.3 27.4 micromicrofarads 1.8 2.7 3.6 micromicrofarads GENERAL ELECTRIC Supersedes ETI-171 dated 4-45 GL -889-A ETI-171A PAGE 2 8-50 TECHNICAL INFORMATION (CONT'D) Mechanical Data Mounting position Type of cooling Water flow on anode Maximum outgoing water temperature Air flow* (to bulb) Maximum glass temperature Net weight, approximate *Air to be directed at the top of tube from a 3 -inch -diameter nozzle. vertical, anode down water and forced air 6 gallons per minute 70 centigrade 15 cubic feet per minute . 150 centigrade 2 pounds MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS AUDIO -FREQUENCY POWER AMPLIFIER AND MODULATOR -CLASS B Maximum ratings, absolute values D -c plate voltage Maximum signal d -c plate current Maximum signal plate input Plate dissipation t Typical operation Unless otherwise specified, values are for two tubes D -c plate voltage D -c grid voltage Peak a -f grid -to -grid voltage Zero signal d -c plate current Maximum signal d -c plate current Effective load resistance, plate -to -plate. Maximum signal driving power, approximate Maximum signal power output, approximate Averaged over any audio -frequency cycle of sine -wave form. 5000 -180 1460 0.4 3.2 2520 170 8.8 CCS* 6000 -230 1680 0.4 3.6 3680 180 12 CCS* 8500 maximum volts 2 maximum amperes 12 maximum kilowatts 5 maximum kilowatts 7500 volts -300 volts 1700 volts 0.4 ampere 3.2 amperes 5000 ohms 150 watts 15 kilowatts RADIO -FREQUENCY POWER AMPLIFIER -CLASS B Carrier conditions per tube for use with a maximum modulation factor of 1.0 Maximum ratings, absolute values D -c plate voltage D -c plate current Plate input Plate dissipation Typical operation D -c plate voltage D -c grid voltage Peak r -f grid voltage D -c plate current D -c grid current, approximate Driving power, approximatell Power output, approximate At crest of audio -frequency cycle with modulation factor of 1.0. CCS* 8500 maximum volts 1.0 maximum ampere 7 5 maximum kilowatts 5 maximum kilowatts CCS* 6000 7500 volts -250 -300 volts 460 500 volts 0.9 0.9 ampere 0 003 0.005 ampere 95 80 watts 1.5 2 kilowatts PLATE -MODULATED RADIO -FREQUENCY POWER AMPLIFIER -CLASS C TELEPHONY Carrier conditions per tube for use with a maximum modulation factor of 1.0 Maximum ratings, absolute values D -c plate voltage D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation CCS** 6000 maximum volts 1000 maximum volts 1.0 maximum ampere 0.25 maximum ampere 6 maximum kilowatts 3 maximum kilowatts TECHNICAL INFORMATION (CONT'D) Typical operation D -c plate voltage D -c grid voltage Peak r -f grid voltage D -c plate current D -c grid current, approximate Driving power, approximate Power output, approximate CCS* 5000 6000 volts -800 -900 volts 1300 1420 volts 0.9 1.0 ampere 0.12 0.1 ampere 155 140 watts 2.75 4 kilowatts GL -889-A ETI-171A PAGE 3 8-50 RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR -CLASS C TELEGRAPHY Key -down Conditions Per Tube Without Amplitude Modulation Maximum ratings, absolute values CCS* D -c plate voltage D -c grid voltage 8500 maximum volts -1000 maximum volts D -c plate current 2 maximum amperes D -c grid current 0 25 maximum ampere Plate input 16 maximum kilowatts Plate dissipation 5 maximum kilowatts Typical operation CCS* D -c plate voltage D -c grid voltage 5000 6000 7500 volts -500 -600 -800 volts Peak r -f grid voltage 1200 1460 1830 volts D -c plate current 1.5 1.8 2 amperes D -c grid current, approximate 0.19 0.21 0.24 ampere Driving power, approximate 220 290 400 watts Power output, approximate 5 7 10 kilowatts Modulation essentially negative may be used if the positive peak of the envelope does not exceed 115 per cent of the carrier conditions. **CCS-Continuous commercial service. APPLICATION NOTES *GL -889-A can be operated at maximum ratings in all classes of service at frequencies as high as 50 megacycles. The tube may be operated at higher frequencies provided the maximum values of plate voltage and power input are reduced as the frequency is raised. (Other maximum ratings are the same as shown under TECHNICAL INFORMATION.) The tabulation below shows the highest percentage of maximum plate voltage and power input that can be used up to 150 megacycles for the various classes of service. Special attention should be given to adequate ventilation of the bulb at these frequencies. Frequency Percentage of maximum rated plate voltage and plate input Class B Class C plate modulated Class C unmodulated-maximum plate voltage Class C unmodulated-maximum plate input 50 100 150 megacycles 100 83 72 per cent 100 75 60 per cent 100 78 65 per cent 100 70 50 per cent U) 0 U) 0 S32:13c114/V NI NOISSIVIS3 1JJ -c& LLJ 0 t) 1. > CCCO) < --I Icaw <4 II 0- ILI 6 0 I-- 0 0 9 0 0 S3213dAV NI 114321dfl3 Uld5 messmsloommomomm 111111111111111 11111111111111 11111111111111111111 II 11111111111111111AI 1 - 0100111 I 1 1 11 1 1 I 1111111111 Piiiiiiiiiiiiiii M11M1U11M11M11E11M11A01P11O11U1R11EMEMNMAMO EmmLiAlVmEiMmEm.pmAmMmOENmXmIA II iinallinil II MENNIMI 11011 111111011,11111111 ior iiiiiiiiiii moo,. ... III 11151 i! hi Ili iii IIIL iii Il voNowompirompollo 01:111114111011111000111001 ill Ai,. IIIIIIIIIIIIIII1011,1112111111111116 Il 1111111111111111111111111111111111111" 1 milimilli;;;iiii::: (0 Sa2lIelVYVKI11132181011cfld GL -889-A AVERAGE FILAMENT CHARACTERISTICS COLD RESISTANCE =0.008 OHM 150 100 50 GL -889-A ETI-171A PAGE 5 8-50 0 5 10 FILAMENT VOLTAGE IN VOLTS K-8074634 MI Not previously included GL -889-A CHARACTERISTIC 1-9-46 1200 AdIkliIIIkaiii:IIII.Iilliflilre 1111116411114611111:11 Iiinili a 14111 1... . 411111116111111111°"1411141111111 1111111111111 1111 1111 111115a11/i111141 Ir. i") NH INV§ liii 11111166i- 1 800 HMI& irdr town 171;11° 11...1. 41111111111 . pl. 1..1.1.1..1.0.1..1.111 1111111 I mom ..I ...... :111.1i1 11 It 1.1111 11111111P! III 111111 HINVONNISINPFIErliiid 600 .. iplliii.101111111115iitlii.,11111111111111 1111 !!!! 11111111011111111/g11111 l' 1:154111N1 I III 1/11111111111 11 1111i 111111in ill g2 1111921162;111111111111:11P11111111111111E1W1111111111111111111 IIIIIIII1 li 1 1111111 - -IN I 40" IiirligHliiiiiiiiliiiiiIiiiiiilgiMill "I MI -"MIMI' III I _z ilt.villimumwilluirlimmilli . g 14:..!! II !L;1 u., it i . 115I"h16h1.1-1-1.11.-1,_6.811iiiiiiiiNklivililimillillip ,,..um 200 pliklairil:il6lO2g1I1ng1g1n1IP1-iAlloPiIgWliImIII.ia.._1.1_161611_".0.,:4-1-,1.1..11-141!..p-_h_ipe - --Iil 1 iiii rogiiiiiiimmkpantrnma....-... ApPINUNNUOINPadodr1 ,IIIIIIIIIIMN1'411111 6111;;;I:17111111111111:1111111161111 _ 1 in 11 1111 1111 ; 1:111 fin MI 91-1111I!r.MI MI IN lin Ir iii 1111 1C-807407 IRevised 200 III III 111111111 11111111114111116111111:1i1l1"l" III...-- I - ... W -400 III 1111 IINIIIII tall III" 6 14 iiig" I III u 01111ffivoldiffillirhhi.humnb 1 muomummiimummommommunuommumhomilimionglowsh Jim -600 11111P1111111111111101111111111111111111111111111111111101101111111111111110111011110101 mIllitmhiilllliilnlill!i!k!!u!!m!!!m!!IidIIiIbI miliginummmmimummpmlipolmimmuullimmupmlimmiollimmmumunilklimmihllnimoiwllinll 11111111 11111111111111111111111111 Ill 2 1 6 8 10 PLATE VOLTAGE IN KILOVOLTS 3-5-48 GL -889-A En -171A PAGE 6 8-50 FILAMENT TERMINAL GRID TERMINAL GRID TERMINAL FILAMENT TERMINAL MIN. STRAIGHT SIDE NOTE: THE TUBE BASE SHALL BE CAPABLE OF ENTERING TO A DISTANCE OF IN A FLAT PLATE GAUGE HAVING FOUR HOLES .536"±.00I"DIA. ARRANGED ON A CIRCLE OF 2.125"+,001" DIA. AT ANGLES OF 9 0 °±I0' TI - 2.02211+.030 Ji-if DIA. ANODE-' K 534471 3 8-50 (1181 GL -889-A OUTLINE Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 3-16-45 GL -891 DESCRIPTION AND RATING ETI-172C PAGE 1 9-51 PLIOTRON DESCRIPTION The GL -891 is a three -electrode transmitting tube of the double -filament type for use as a radio frequency power amplifier, oscillator, Class A modulator and Class B modulator. The construction of the filament permits operation from two-phase or single-phase alternating -current as well as from direct current, for all classes of service. The plate is water-cooled and is capable of dissipating 6 kilowatts, depending on the service in which the tube is used. The GL -891 can be operated at maximum ratings at frequencies as high as 1.6 megacycles and up to 20 megacycles at reduced ratings. GENERAL TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. Electrical Data Filament voltage Filament current at bogey voltage Filament starting current Filament cold resistance Amplification factor E, = -500 volts, Ib = 0.75 ampere Interelectrode capacitances: Grid -plate Grid -filament Plate -filament Minimum 57 Bogey 22 60 0.031 Maximum 23 volts 62 amperes 120 amperes - ohm 7.6 8.5 9.4 24 27 31 micromicrofarads 15 19 23 micromicrofarads 1 2 3 micromicrofarads GENERAL ELECTRIC Supersedes ETI-1728 dated 8-50 GL -891 ETI.172C PAGE 2 9-51 TECHNICAL INFORMATION (CONT'D) Mechanical Data Mounting position Type of cooling Water flow on anode 3 Maximum outgoing water temperature Maximum glass temperature Net weight, approximate vertical, anode down water 8 gallons per minute 70 °centigrade 150 °centigrade 31/2" pounds MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS AUDIO FREQUENCY POWER AMPLIFIER AND MODULATOR -CLASS B Maximum ratings, absolute values D -c plate voltage Maximum signal d -c plate current$ Maximum signal plate input$ Plate dissipation$ CCS* 15,000 volts maximum 2.0 amperes maximum 20,000 watts maximum 5,000 watts maximum Typical operation (unless otherwise specified, values are for two tubes). D -c plate voltage D -c grid voltage Peak a -f grid -to -grid voltage Zero signal d -c plate current Maximum signal d -c plate current Effective load resistance, plate -to -plate Maximum signal driving power, approximate Maximum signal power output, approximate 6,000 -630 2,060 0.5 2.5 5,000 110 8,000 CCS* 10,000 -1,100 3,060 0.5 2.4 10,000 225 16,000 12,500 volts -1,450 volts 3,760 volts 0.4 ampere 2.5 amperes 12,000 ohms 245 watts 22,000 watts *Continuous Commercial Service. Averaged over any audio -frequency cycle of sine -wave form. RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR -CLASS C TELEGRAPHY (Key -down Conditions Per Tube Without Amplitude Modulation)11 Maximum ratings, absolute values D -c plate voltage D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation CCS* 12,000 volts maximum -3,000 volts maximum 2 0 amperes maximum 0 15 ampere maximum 18,000 watts maximum 6,000 watts maximum Typical operation D -c plate voltage D -c grid voltage Peak r -f grid voltage D -c plate current D -c grid current, approximate Driving power, approximate Power output, approximate CCS* 8,000 10,000 volts -1,800 -2,000 volts 2,400 2,700 volts 1.15 1.33 amperes 0.09 0.14 ampere 215 375 watts 6,500 10,000 watts *Continuous Commercial Service. Modulation essentially negative may be used if the positive peak of the envelope does not exceed 115% of the carrier conditions. APPLICATION NOTES GL -891 can be operated at maximum ratings in all classes of service at frequencies as high as 1.6 megacycles. The tube may be operated at higher frequencies provided the maximum values of plate voltage and power input are reduced as the frequency is raised. (Other maximum ratings. are the same as shown under MAXIMUM RATINGS and TYPICAL OPERATING CONDITIONS.) The tabulation shows the highest percentage of maximum plate voltage and power input that can be used up to 20 me for the various classes of service. Special attention should be given to adequate ventilation of the bulb at these fre- quencies. Frequency 1.6 7.5 Percentage of maximum rated plate voltage and plate input, Class C, unmodulated 100 75 20 megacycles 50 per cent GL -891 AVERAGE PLATE CHARACTERISTICS Er -22 VOLTS A -C SINGLE-PHASE EXCITATION GL -891 ETI-172C PAGE 3 9-51 8 MEMMEMMEMMEM OnMmMoImMMmIuMmMmOMoMnME I MUM MN MI -FEE MEMMEMMMI II =MP MAIMMEMMIMMEMIMMEMMEMEMEMMUMIMMEMEMM PM IMMIMMIMINMEM MPS mmmnommmommmummmonnommommommumminunnammommummommmonn NilaM nnomnomms mu- mummmummommmommmm mmommommommmonnmminnommmummunnommn nmm nm IIIIIIIIIIN IIwoo nom mumm mmmummommm EMMIUMMMEM nn1111111111111111111111111111 MIMMEMMEMEMMIMMEMMINMMEEMMEMMMEMMIMMEMMIMMEMMEM MEMM MIME MOMMAIMMIMMEMMMEMM PM MINAMMEMPMEMMEMEME PM MEMMEMMAIMMMIMMMUMMPMEMEMMIMMEMMIOMMEMMEMMIMMAIMM OMMIMMMEMEMMME MMAIMMEMIMMIMMMEMMMEMEM M M Mil MEM MMMEMMEMMMEMPMENMEMMEMMEMEM IMMINNEMMEMMEMM 6 NI MI MMIMMOIMIMMM'4O1IMAAMIMMUMNPNMIM MIMMMMIIMEMMMEEMMMMEINMMMEEMMEMMEEMmMoEmM ME MMEMMIMMUMMEMEMEMEMMIMMEMMEMPMEM IMM mimmommunimmommanummmommommmummommommmummon vanompalmmommm minammmmummumm mmommommm nummommumm mm mnimmnommommmmmunmommmmummmm in m 0 2 7 - T m m iii mm m lig go IIIK A Mk, OirtA N 4 A 1 r1 I ftN.. A M ' - II1f IIF I r Il r1- Ar2m . I 111 r r F u F, 11111 .A W4 1, Wlb ail! ' I . V I nA . NAM r A A 1 I A MWIAr V Ibrloe 0M riiir r 2 ww..A ..,A .. 4 IF br A /M rr A r ? ,-: A r p' I A 4 . A FrA . . N/1 '4 r 1 A A ' Art, . .4 WA 0 A 111. N EAMMVAMMMAIMMIMYMM mumnmamorAmmoummormommuFmardnumraromnom mm mmommmmomm morainnimm mu A MI AmmmummEcammmAmmurAmmrammnummorAmmorammorAmmannmairAnacrnmummmEmmnommum muammrsm ram mAmmmrAmmrmmEmAmmmrm MmuUrMmMuAr JUIN PWEmMmiumim.ArmiAnmwmIuiII mm,mmuirrmmmAMmVmAFM4 MAFmAmImM.MMmUmMoIrlMmFAmMroIaMmIImAOmWuAmImMPoMAIuPmAmPmOAmIMuPmMmMnMInFAeUmWuAm-MnMIoaiACto,-IsWuA.nCNATAg,ievrka.i1mommmm I nimrAmmum WA MUM =rim FAmmmumurm mFammFammFAmmmrAnimmumemmunmnraimpu mpummummEmmmnom VI .!F.A,,AFM A Ar A rrr11.Arr r , A A EWA mu. A A frAmmisummm A rumA my, Ad WA A A . mm Am I M ,A AI 14 A FAMMrIVAIFM MIA AdnurAmmorimmrAim AmmrAm A A . . r4 AM r A r , r A AA n AP' ir A P' A 111111111111 prampramprinmmA mom mprampunimprAmprammmnommounimmn A up rAiAramprummAoAnam.m1uimmrAm.ma raimmmmimmommummmon hISMIPAMIMMIPIMIM u_mpu mrAmmorawom rummpAmmir 'Fr IF AM AIME rAPMFMAIMPFrAMMIWAMMUMIMIMEMMIM MMIMMIMMIMMEMMM 0 i 5000 r- 10000 15000 PLATE VOLTAGE IN VOLTS K -69087-72A104 /Revised drawing. GL -891 ETI-172C PAGE 4 9 -51 GL -891 AVERAGE GRID -PLATE TRANSFER CHARACTERISTICS Ef = 22 VOLTS A -C SINGLE-PHASE EXCITATION 3.0 L 2.5 2.0 1.5 1.0 F0 x 0 0.5 1 K -69087-72A445 +Revised drawing. I000 2000 3000 PLATE VOLTAGE IN VOLTS 4000 .GL -891 AVERAGE CONSTANT -CURRENT CHARACTERISTICS Ef =22 VOLTS A -C SINGLE-PHASE EXCITATION IIIIIIIMM=MMIIIIMEN 1111111111111111=11111111111111111111M1 IIMEN11111111M= M=MINIIIMMMINNIIIMENIIMMI IIMENIMENNIMIll rmirming= mMallE11=111I1IM111M111E111N11I1M111M111I1I1I1I1I1I1I0I1I1IIIIIIMIIIIIII IIIIIMMENIM11111 111N11111111111111111111111 Nimmi Egglinsirm======= 100 =mWinwMao/kuINmmiminorrauim&usmammummmommommEurlm= mmnimmi Ell==== 1MMI1NE1IMMWIMNimrJAVMrAI.rLlNlo\vLUw/WInIo/1VrA1w1Ar1ra1IaMMnm1tla1Mm1i1lMm1il1l/iiW1sM1w1Ii1Tal1lr4s1I1sM11i11mM011m1IMI1IE=IENMNININNM =IC mwmWrIrAL.iuAvrrIAlatkiiNmiviIniIreIidMmroAamuImIoVnmoArIum.M.t.oMm.m.IiNarmmSnoWiuomImnImIImImIeINmooImIoImImImIImmMoMoimmmE 611111111111M11= MLAIWWWIAMgnn111 1111 500 MU/1615117".111411b..1111111110. IIMIIMMINIIMMIIIMIONININ I1/r1Pia1NPi1lIl0PWW1M0CI1AP0PNU110R0IM61I1l1lMi11a1EIm1\l1i11n11n1111i1b.10WiZ12.I1NOIbIt1I0Ii1I.0_.b1"41`.1141.11111=11M1=111i11r1o111m11M1Mi1llII1iINk1IIi1IiMIi1IaI.I1M!IMImNiIaNlln=i 111111111111111IMMIIIIN 10.7110111111\ MEM r_ii.TMIIINZAIMballialliiININNIII 111W7N31111111014111EM1MI111R1u1l1".40.9.111111E1M10OJIMNIIlhII:MTIMMIi6i .7.7141I . 11111111:141M1m...1== 24110111M1b01=0.511=M1114=11kb..1:51WW. I. 11111M111h\ MI ZgiiTAIIIMIIIIIIhnINIINOJI=M101111111117.91haTIM117.1.4. IMININ" I0ii1M11110111101111.04.1111M0ia1S1I1M1Ill0h4aM1M11IN1IMhZINiEll WMNIIiIii215M4M111110111_1111M.1O1N1M1ulMinbl.i.k..-_b.._ IIIIIIIIIIIMMIONMS11111:111MMONNOINII0111111116751b1.11111b.-'`44111M.--'411M11.- 1M1I1N1N1I1IM1.E1M11O1I1II1M1O11M11M1111111.i1L1il1l=1M11IV0i1llI1N1I0M5I1N1110111.1111111111M1G11-1b4..1-'1il1MiLnIiOb.M\INi..I.N-4I1M._N"I`i"it4u1ln1in ri -500 MMMMIMININMMI1NIIIIIIII1M=MEIIINI1IIEIMNIMEI1IIMIII1EMIIIMMM0MEMIM1IIIMMIII1IIEIIIN1=IMMIIM1MMMWII1EIIMII1IMMIIMIMIINIMMO.MMISNINmIMaIIMIMII1hICZha1.i.ZSn.1k.N=1I.1II_11IIM1IN11`I14I.1i7I1M2I1I4N-14M"111II1I1lM1l1N'I=E11'N1Oq111li1I1n1bSDlM\17l=01IIWM4OM11M111I\MIMMNI1\1I1IIEE0Ib0CIM0IoN11ISI17M1lII11IM.a16I1b1I11I.1ir1.It2..MIE11\.1M.17141I1l111lI11lbN111k1i1111LIM1Ni1i1.l11.=.-eI0"1-.OM1111W1I11R17N111111I4\l141011Iib411N111..111b11-41-1I11.11iN-=11i1-.11-1`11-114N1"11.1u1.111.1l11"I1l1a1i1i11.,bkb14'1W1.O1l0.-i1k1.1A1Ei1i-_1.1ml.IWl1\.1bl1--i1i.-`.1.-i-1_0--7Ab'1"11hW1M11..11-i.1I1I.\N-I0141I11I1E1I1ii1I.1b.11M.\-7.1m1-5.-I1I14Nl14.iMi1O1I0I1I1N41N1.1-1\1MIMM1M1I.,M71b1E.brn._in== 1M11111 MNIM.WI.II.MII.IIMII.IIMIM.IMIEMMImIIMINEMIM_MEMEmNdM1IEBIII1IIMNI1M1EI1EII1IMI1NII1II1E=II0II1Mm1bMM,MIEMMNMIM=IIIiOMI.II'MmIIIMIIMmIIMIbIIMlIlI.I_7MI7N!Il1lIMMIWl=lkI1IaENI1Im1bMI1miIZILmMMMEmII1IMlIa1bII,\Mh.1i.-h1.iI.r1I1WIs1IM10-\IW4M-I.I1I4MI1Ii.l1IihMihi1:.:1.._.....-q1.1"1N11%11M11M11Ill7Mii1.M.-1_E11-I1'i1i4lO1.a111q1g1.l1l.111.n0.11.i11h1bb1=i..1bM..1-\.M1-1-g11I-N.l1"1iiI11I.M.l-Ml.1Mh1q11i1kEb1I.N-i.Ml-"lWIqiIaiqZiEl.IAlN"ibM1III.II-1IM'M4IM1IZIrM1...IM.WMN..1I1I1hI/I12iiIli -1000 11111.3111==== =111111111=1111111101MINIMb.W411111\74101MMINNII7INOWS11111Mb..74111111M IIMNMImIN1N11IM1I1N1IM11M1O1I1N1O6I\NIIN11II1IM.CM41.-1W111111111111111117..-1-'11111111f1fiM1millIbm...-.-la11h1.,1-`11111E1-17 11M1=1E1M=E1=1M1M1E=N1N1E1=1MMMIINN I1INN1IIMI1MM1MI1NE1MI0NII0IIIIIA1N:I17141.111M1II1M11I1I11M11.1-117111~06/14\1111111111111/1/1b1.1b_`70114111=11M11Mh..:.Wb.W.I-N`,IeRNlIIlIIIiIIlIIiMIkINM..I.IMr.-7'`ii41.1.\1111M1M1M111II1I1-"1M11tMill Ennpannerj= -1500 MENMNi=mEEMuNmNEuENmMNmIIEIoMMoINmMImNIIIiMlMlIMIEIIEIMINIIIIIINIMINIIIMmNI1I1oII1IM1n=11i11In1N11i1m11I11N1m1111N1I1I111111iI.I.M.. 1IN1N=1IM.1VM..I.PI.I.I-I.1sN,'_'.1I1-N11"11IiM1`1i1lOl'1rIi1lNMM1I1bI1I1i,1i1.i..117.M_\4m1h1Z1i1li1Pl1I1MI1G10iM1b11..I1.=I.I10N11I11li1a11l 1i.--11= 111111111111111MME 011111111111111WMINIIMMIMMIZqUNIIIIII..-MINNI.,-411INII! 4000 8000 12000 1600 K -69087-72A447 +Revised drawing. PLATE VOLTAGE 1 N VOLTS GL -891 ETI-172C PAGE 6 9-51 *GL -891 AVERAGE FILAMENT EMISSION CHARACTERISTIC 10 == = = mm ---mm- -m.1;I 8 mmmummmmumnmmmummmmmmmmgmmommummommommommmmmmommummmemaimmmmmm 1111111111111111111111111110111111111111111111P5111111111 p. 11111,11 0 I 111111111111111111111111111111111111 0 8 06 111111111111111111111111121111111111111111111111111111111111111 0.4 2 0.3 mommimmammemmEmmw:kmmmomminummommmommammimmemmmammmommEmmummmm IMMlMmEoMmMmIMNmIMMMMMEMMEMEEIMAMMEMKMAMMMMMEMMIEMMMEWMMMMEMMMMMEMMWMMEUMMMMEMMMMMEWMMMIEIMMMMEMMMEMMMMIIMMMMIMNEMMEIMMMMEMMM 0.2 11111111111111111111111111111111111111111111111111111111111111111 mmmm 0.1 11111111111111111111111111111111111111111111111111111111111 m1o1m1=1 .08 immommommmmommEmsmmommimmmimmmimmommmommummsmommimmeE! .06 MiummommEmmEmmommommummmrnmEmmommimmmimmommommEmim Emma mummEmmmigmmummummommommEmmmummommmummommmmmimmimum mom .04 m=ammaw.- ===== .03 IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII .02 .01 12 K -69087-72A448 112e,r4ed drawing. IIIIIIIIIIIIIIIIIIHIIIIII1111111111 14 16 18 20 22 FILAMENT VOLTAGE IN VOLTS GL -891 AVERAGE FILAMENT CHARACTERISTIC 66 GL -891 ETI-172C PAGE 7 9-51 64 62 LARGE TERMINAL OF BASE COLD RESISTANCE OF FILAMENT =- 0.031 OHM 60 58 56 FILAMENT SUPPLY 54 8 K -69087-72A441 +Revised drawing. 2 22 24 26 FILAMENT VOLTAGE I N NOLTS WITH D -C EXCITATION BASE TERMINALS GL -891 FILAMENT CONNECTIONS WITH SINGLE-PHASE A -C EXCITATION BASE TERMINALS WITH TWO-PHASE A -C EXCITATION BASE TERMINALS LARGE TERMINAL V = 22 VOLTS A = 60 AMPERES K-9033547 LARGE TERMINAL V = 22 VOLTS A = 60 AMPERES LARGE TERMINAL V =11 VOLTS A = 60 AMPERES 12-1-44 GL -891 EV-172C PAGE 8 9 -51 FILAMENT TERMINALS \ 120°NOMINAL FILAMENT CENTER -TAP TERM "MIN. RADIUS 9-51 (11M) GRID TERMINAL 120°NOMINAL --rf-74 .43 7" -1-.°°711DIA:64 1-1-7M IN 16 BASE 3232 r-.500"± .°°7 "DIA . i_ Ili MAX. t 437"-±,007"DIA. T .438"MIN 2r2MDAIAX. . 3131" 1 . 2 r7e"MAX DIA 2.000 fit .020" DIA -..! A 3" MAX. --'-F-6" ' DIA. 121r6'k8" 7 2.74 2" 16- 8 20-15".±13" , Li_ 2 , 2 / i Il tvitp. f\ I .187f"±.015t " 1 1580" t '050" DIA 8 _16°-t8-1" ANODE ------49 I OUTLINE GL -891 PLIOTRON K-6966979 3-11-47 Tube Department, Electronics Division GENERALO ELECTRIC Schenectady, N. Y. GL -892 DESCRIPTION AND RATING ETI-173 PAGE 1 4-45 PLIOTRON DESCRIPTION The 892 is a three -electrode pliotron of the double -filament type for use as a radio -frequency power amplifier, oscillator, and Class B modulator. The construction of the filament permits operation from two-phase or single-phase alternating current as well as from direct current, for all classes of service. The plate is water-cooled and is capable of dissipating 6.6 to 10 kilowatts. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes Electrical Cathode-filamentary, two -unit type Excitation 1 -phase a -c, 2 -phase a -c, or d -c Voltage, per unit . Current . Amplification factor Direct interelectrode capacitances Grid -plate Grid -filament . . . Plate -filament Frequency for maximum ratings . 3 .11 volts .60 amperes .50 .30 micromicrofarads . ...20 micromicrofarads 15 micromicrofarads 1 6 megacycles TUBE GENERAL CD ELECTRIC GL -892 ETI-173 PAGE 2 4-45 TECHNICAL INFORMATION (CONT'D) Mechanical Type of cooling Maximum outlet temperature Water flow Gasket Net weight, approximate Shipping weight, approximate water ..70 centigrade 3 to 8 gallons per minute cat. no. 5182028P3 3 pounds 10 pounds MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS CLASS B AUDIO -FREQUENCY POWER AMPLIFIER (TWO TUBES) D -c plate voltage . Max -signal d -c plate current* Max -signal plate input* Plate dissipation Typical operation: Unless otherwise specified, values are for 2 tubes. D -c plate voltage D -c grid voltaget ... Peak a -f grid -to -grid voltage . Zero -signal d -c plate current Max -signal d -c plate current Load resistance (per tube) . Effective load resistance (plate -to -plate) Max -signal driving power, approximate Max -signal power output, approximate. . 15000 volts 2 0 amperes 20 kilowatts 7 5 kilowatts 6000 0 1200 0.5 2.5 1050 4200 415 8 10000 -90 1620 0.5 3.2 1600 6400 525 20 12500 volts -170 volts 1530 volts 0.4 ampere 2.8 amperes 2500 ohms 10000 ohms 420 watts 22 kilowatts CLASS B RADIO -FREQUENCY POWER AMPLIFIER Carrier conditions per tube for use with a maximum modulation factor of 1.0 D -c plate voltage . D -c plate current Plate input Plate dissipation Typical operation: D -c plate voltage . D -c grid voltaget . Peak r -f grid voltage D -c plate current Driving power°, approximate Power output, approximate . . 15000 volts 1.0 amperes 15 kilowatts 10 kilowatts 6000 10000 14000 volts 0 -100 -190 volts 300 470 510 volts 0.67 0.93 0.95 amperes 65 50 30 watts 1 2.5 4 kilowatts CLASS C RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR -PLATE -MODULATED Carrier conditions per tube for use with a maximum modulation factor of 1.0 D -c plate voltage D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation Typical operation: D -c plate voltage. D -c grid voltage Peak r -f grid voltage D -c plate current . D -c grid current, approximate . Driving power, approximate Power output, approximate 10000 volts -3000 volts 1.0 ampere 0.25 ampere 10 kilowatts 6.6 kilowatts 6000 -1000 1675 0.77 0.19 310 3.5 8000 -1300 2000 0.75 0.18 350 5 10000 volts -1600 volts 2400 volts 0.72 ampere 0.12 ampere 260 watts 6 kilowatts GL -892 ETI-1 73 CLASS C RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR PAGE 3 4-45 Key -down conditions per tube without modulationtt D -c plate voltage . D -c grid voltage . D -c plate current . D -c grid current .. Plate input Plate dissipation Typical operation: 15000 volts -3000 volts 2.0 amperes 0.25 ampere 30 kilowatts 10 kilowatts D -c plate voltage . 8000 10000 12000 volts D -c grid voltage Peak r -f grid voltage ..... -1000 -1300 -1600 volts 1800 2300 2800 volts D -c plate current . 1.1 1.4 1.64 amperes D -c grid current, approximate 0.18 0.18 0.18 ampere Driving power, approximate 320 400 500 watts Power output, approximate . 6.5 10 14 kilowatts *Averaged over any audio -frequency cycle of sine -wave form. tWith d -c filament supply. °At crest of a -f cycle with modulation factor of 1.0. ttModulation, essentially negative, may be used if the positive peak of the audio -frequency envelope does not exceed 115 per cent of the carrier conditions. APPLICATION NOTES GL -892 can be operated at maximum ratings in all classes of service at frequencies as high as 1.6 megacycles. The tube may be operated at higher frequencies provided the maximum values of plate voltage and power input are reduced as the frequency is raised (other maximum ING). The tabulation below shows the highest percentage of maximum plate voltage and power input that can be used up to 20 me for the various classes of service. Special attention should be given to adequate ventilation of the bulb at these frequencies. ratings are the same as shown under MAXIMUM RAT - Frequency 1.6 7.5 20 megacycles Maximum permissible percentage of maximum rated plate voltage and plate input: Class B telephony 100 85 76 per cent Class C plate -modulated 100 85 75 per cent Class C unmodulated 100 75 50 per cent 7,0 00 6 Xt W4 4; I, 0 wu ,c4.0 ,0 xej cwr5 2 , IP° z4. z kg0° re cc ,r5 0 0 a. ) x200 .0.0...-- .,..._,,,,...--------------4100 1. Ec 0 -100 -.200 0 5000 10 000 15 000 20 000 PLATE VOLTAGE I N VOLTS GL -892 AVERAGE PLATE CHARACTERISTICS (E1= 22 VOLTS A -C) K-8639397 25 000 9-28-44 GL -892 ET I-173 PAGE 4 4-45 2.5 2.0 a "- ki4.) Eez+ 800 1.5 1 0 1.0 x (51 0 Ir 0 (.5% 0 .5 X7 x Cb C.00 °0 x,, 00 11111\ N- 1i 0 2000 4000 6000 PLATE VOLTAGE IN VOLTS GL -892 GRID -CURRENT CHARACTERISTICS (Ef = 22 VOLTS A -C) K-8639396 9-28-44 GL -892 ETI-173 PAGE 5 4-45 I I 111.4 I.0 +800 / 1\ 0,6 1///1 2 / 11 I//1 0 // \ I 70.2 // il GRID - AMPERES ii +400 . / O .0 8 I 0,5 0.2 -40 0 PLATE AMPERES K-8639395 0 4000 8000 12000 16000 20000 PLATE VOLTAGE IN VOLTS GL -892 CONSTANT CURRENT PLATE AND GRID CHARACTERISTICS (Ef = 22 VOLTS A -C) 9-28-44 GL -892 ETI-173 PAGE 6 4-45 10 8 6 4 3 2 - a_ 0.8 2 -<0.6 -- 0.4 ..71 0.3 w 1E0.2 -w06 .04 - .03 .02 K-9033591 12 14 16 18 20 22 FILAMENT VOLTAGE IN VOLTS GL -892 AVERAGE FILAMENT EMISSION CHARACTERISTIC 1-9-45 64 N Ee, 62 %a Z i- 06 LI 58 LT,. " 'c 7_ 5 G GL -892 ETI-173 PAGE 7 4-45 LARGE TERMINAL OF BASE COLD RESISTANCE OF FILAMENT = 0.032 OHM FILAMENT SUPPLY 54 I8 20 22 24 26 FILAMENT VOLTAGE IN VOLTS K-8639398 WITH D -C EXCITATION GL -892 AVERAGE FILAMENT CHARACTERISTICS WITH SINGLE-PHASE A -C EXCITATION WITH TWO-PHASE A -C EXCITATION BASE TERMINALS BASE TERMINALS BASE TERMINALS 11-2-44 LARGE TERMINAL V = 22 VOLTS A = 60 AMPERES K-9033547 - LARGE TERMINAL V = 22 VOLTS A = 60 AMPERES LARGE TERMINAL V =11 VOLTS A = 60 AMPERES GL -892 FILAMENT CONNECTIONS 12-1-44 GL -892 ETI-173 PAGE 8 4-45 FILAMENT TERMINALS FILAMENT C NT ER -TAP TERM. GRID TERMINAL 4374.005"DIA7-1 rw-. 50 0"± .005" DIA. BASE 3232 1/N frr 1-I8" MAX. A BASE 3950 1 A /.437H+ .005"DIA. .465" MIN. 2"MAX. DIA 6 i;MAX. 7.1 216 MAX. DIA 2 .000"±.015"D IA. i" 41- MAX' 6DIA. -" 1016+ 2 91 3" 716-+8 iLt 22 I 7"I MIN. 6M 20 MAX. 8 .187"+.010" 1-46 (3M) Filing No. 8850 ANODE 1.580"± .0 4 5" DIA . 81-6I."+7- a,I" OUTLINE GL -892 PLIOTRON K-6966979 9-23-44 NOTE: Mounting position vertical, anode down. Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL -892 DESCRIPTION AND RATING En -173B PAGE 1 12-50 PLIOTRON DESCRIPTION The GL -892 is a three -electrode pliotron of the double -filament type for use as a radio -frequency power amplifier, oscillator, and Class B modulator. The construction of the filament permits operation from two-phase or single-phase alternating current as well as from direct current, for all classes of service. The plate is water-cooled and is capable of dissipating 6.6 to 10 kilowatts. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Filament voltage Filament current at bogey voltage Filament starting current Filament cold resistance Amplification factor, Ec= -50 V, I, = 0.75 A Interelectrode capacitances Grid -plate Grid -filament Plate -filament . Completely revised. Minimum 57 Bogey 22 60 0.031 42.5 50.0 27 30 15 20 0.5 1.5 Maximum 23 volts 62 amperes 120 amperes ohms 57.5 33 uuf 24 uuf 2.5 uuf GENERAL ELECTRIC Supersedes ETI.173A dated 6-47 GL -892 ETI-173B PAGE 2 12-50 TECHNICAL INFORMATION (CONT'D) Mechanical Data Mounting position -vertical, anode down Type of cooling -water Water flow on anode Maximum outgoing temperature Maximum glass temperature Gasket-JTC gasket -1 Net weight, approximate Minimum 3 Bogey Maximum 8 gpm 70 C 150 C 3IA pounds MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS AUDIO -FREQUENCY POWER AMPLIFIER MODULATOR -CLASS B Maximum Ratings, Absolute Values D -c plate voltage Maximum signal d -c plate current t Maximum signal plate input t Plate dissipation t Typical Operation Unless otherwise specified, values are for two tubes D -c plate voltage D -c grid voltage Peak a -f grid -to -grid voltage Zero signal d -c plate current Maximum signal d -c plate current Effective load resistance, plate to plate Maximum signal driving power, approximate Maximum signal power output, approximate 6,000 0.0 1,000 0.5 2.6 4,200 135 8,000 15,000 max volts 2.0 max amperes 20,000 max watts 7,500 max watts 10,000 -90 1,380 0.5 3.3 6,400 240 20,000 12,500 volts -170 volts 1,370 volts 0.4 amperes 2.8 amperes 10,000 ohms 160 watts 22,000 watts RADIO -FREQUENCY POWER AMPLIFIER -CLASS B Carrier conditions per tube for use with a maximum modulation factor of 1.0 Maximum Ratings, Absolute Values D -c plate voltage D -c plate current Plate input Plate dissipation Typical Operation D -c plate voltage D -c grid voltage Peak r -f grid voltage D -c plate current. D -c grid current, approximate Driving power, approximate// Power output, approximate 15,000 max volts 1.0 max ampere 15,000 max watts 10,000 max watts 6,000 230 0 640 0 030 77 1,000 10,000 -100 370 0.77 0.060 133 2,500 14,000 volts -190 volts 440 volts 0.82 amperes 0.03 amperes 106 watts 4,000 watts PLATE -MODULATED RADIO -FREQUENCY POWER AMPLIFIER -CLASS C TELEPHONY Carrier conditions per tube for use with a maximum modulation factor of 1.0 Maximum Ratings, Absolute Values D -c plate voltage D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation Typical Operation D -c plate voltage D -c grid voltage Peak r -f grid voltage D -c plate current D -c grid current, approximate Driving power, approximate Power output, approximate 6,000 -1,000 1,650 0.83 0.28 420 3,500 10,000 max volts -3,000 max volts 1.0 max ampere 0.3 max ampere 10,000 max watts 6,600 max watts 8,000 1,300 1,950 0.82 0.24 430 5,000 10,000 volts -1,600 volts 2,250 volts 0.78 amperes 0.23 amperes 460 watts 6,000 watts TECHNICAL INFORMATION (CONT'D) GL -892 ETI-1738 PAGE 3 12-50 RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR-CLASS C TELEGRAPHY Key -down conditions per tube without amplitude modulationlf Maximum Ratings, Absolute Values D -c plate voltage D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation 15,000 max volts -3,000 max volts 2.0 max amperes 0.4 max ampere 30,000 max watts 10,000 max watts Typical Operation D -c plate voltage D -c grid voltage Peak r -f grid voltage D -c plate current D -c grid current, approximate Driving power, approximate Power output, approximate 8,000 -1,000 1,700 1.17 0.22 330 6,500 10,000 -1,300 2,150 1.4 0.24 495 10,000 12,000 volts -1,600 volts 2,550 volts 1.55 amperes 0.23 amperes 565 watts 14,000 watts Averaged over any audio -frequency cycle of sine -wave form. //At crest of audio -frequency cycle with modulation factor of 1.0. ¶ Modulation essentially negative may be used if the positive peak of the envelope does not exceed 115 percent of the carrier conditions. Maximum ratings apply up to 1.6 megacycles. The tube may be operated at higher frequencies provided the maximum values of plate voltage and power input are reduced according to the tabulation below (other maximum ratings are the same as shown above). Special attention should be given to adequate ventilation of the bulb at these frequencies. Frequency Percentage of Maximum Rated Plate Voltage and Plate Input Class B Class C plate modulated Class C unmodulated 1.6 7.5 20.0 megacycles 100 85 76 percent 100 85 75 percent 100 75 50 percent GL -892 AVERAGE PLATE CHARACTERISTICS (Er= 22 VOLTS A -C) 1111111smom 6 Pm P.m v Irk FAmm UANI I/ Wpr II mmisMm ME MIM n II MMMMMMMMM"Mnm"mmms"mmomummoa.mn MMENA ' Ns ma mir Ns GG r_ ri Pr Jo"- m MMMMMMMMMMMMM MMUnMEME JMir!ililnlllinlililllllnuII IIIHII MM M MI N FAMA . smmitMMMaMMdM mo m M MM MMM m m MMAAMrMMOMMt IlmP"om oImuIIuI gpmdmil nn E.Md -ad' :11r0rio"mM1ME1.R:11M SMIIMARPWMIATMeME MM: !Illil ImilAMJ muilrmei MA - muma gMM.m.mMEM 4111MEM MEE MMIMIMmENmSMN MUM 1111114:11. 1 11 aM m nn 4!"644 MMMMM MEME M MEME _ .p!lEmunnon!o;annlanin P0 - P". r 1 .fin not m.r... --, ...... gnoonnon.oim-mms.=- MMMMMMMin mminnonn Iminm.-- ...:-.- II._ .1.1:IIgmmliil ernnollogonn.n Main min le_inn._m. -"' Es WM J LL. ;JINN UM X 11 EEO ..... Am MOM _.-. _..mill .m IP MI WM ....'..::Ammiinno inn n MMMMMM m ME M 1 5000 10000 15000 20000 PLATE VOLTAGE IN VOLTS K -69087-72A108 Revised. GL -892 ETI-173B PAGE 4 12-50 GL -892 AVERAGE GRID -PLATE TRANSFER CHARACTERISTICS Ef =22 VOLTS, A -C, SINGLE-PHASE EXCITATION 4.5 111111 F111111111111111 N111111111 1111111111111111 11111111111 4.0 KillSIEREIREEEFEHRS :551:EfiniarEIEFEEETEEEnn 1111111.3111111111111111111111....IIIIIIIIIIIIIIIIIIIIIIII!!!!!!!!! 3.5 iiiiiiiiigiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii !PRIP!!!!!!!!M!!!!!!!!! 3.0 rinommoomilloil PININIIIINIRII II 2.5 rp"immodimplumpolomomb im11111110 1 1111111111 1111111111111111 11111111111111111111111111 2.0 1u1 I11 vinummuummiunimpammum .,. I .5 1.0 mi:,.f1,:f,:.i,o:.a,,.1wi..l...1..d,..,m.1.,..,i,l.4c.o,g.a11mm.o..6ptA.a4.,!r.m0er1.o..11.mm..tp.i.q.m..i.m.Ip.nI..Iimm..Ii.I.mI..I.mi.I.lI..uiI..moIp.ImI.m.I.i.Il..mml.m.i..mm.".mu..".i.".olu.m.i..m.mm.m.....imu.m.l.i.m.il..lii.,iil 0.5 i10f11i1r11m041mu11ilmmi1tphmnhNgeeEkiAlmiutRylwokIAFPlcPiIIzyI_I_boM_ alMoidwIiMliiaa0mi.lImi1lAj1ui1iPMiRmiUiPMiiMmiMUiMimiiiFillililOii.ni.iU.ig.ii.ri.ari.ia.il.ilgi.ii1l.ii1in11il:i till..rrm. ."..BI.a..l.m.a"lfiulo.imimiur..ir.tT.r5.Ah1nali.io"im.nN.".m.muA..niU.mu.u.S.mun.E.E1s".1mt1.iIh.MR.i.mo.Mm. uo.Bo.n.mEr.n.aR.am.n.uI.nB.uu.uEm.m.n.Hu.r.ufE.of.im.imo.ip.u.mmr.m.t.i -0.5 111111111111 111111111111111111111 2000 4000 6000 PLATE VOLTAGE IN VOLTS K -69087-72A442 # New drawing. GL -892 AVERAGE CONSTANT -CURRENT CHARACTERISTICS Ef =22 VOLTS A -C, SINGLE-PHASE EXCITATION GL -892 ET1-173B PAGE 5 12-50 K -69087-72A443 New drawing. 12000 4000 6000 8000 PLATE VOLTAGE IN VOLTS 0,000 12 000 14 000 GL -892 ETI.173B PAGE 6 12,50 .GL -892 AVERAGE FILAMENT EMISSION CHARACTERISTIC iimiiiik milli NEIN 10 8 ....= .. . =_.... ........._._...=.=..=.._.=...=....1__..., M- 6 4 3 I--M=M-OEmE=-MMmO=-MMoN=-MEm-MN=m-MU=i-MM=m=M-a=M-am=-MO-mI=-MOmg==MMmi-MM==mU-O=iM-M=lM-M-.--.----.--i-=====-E==-mE=--m-=--u-mmm--g--mm--om--m=-=-m=I-mo=I=mm=I-em=I-ru=M-.-em=m=.-M-=m=m-.-I-a.=.-i-.I=m.==i=.-.I.-==mm--M.-=n=m.--f.E==fi..==M-Alm.=l=Efm=-.if=.NM-..m.EM-..-m"A4BW.-=i...-=A=.-f.--=N=.--t.-===.N-m-.W.=-I-=.M=i-===-N.O==l.=I=M==E=M==-M=E=-"==MM--=M--Mmm=-MeN-Em 2 itilltrard iiiiiiirMEINIErair M MINNIE11111.1. 11111111111111111 .... 0 1 0.8 am '.'.'. m _w_. .. ,.,, mmfmfElaamMmMaammmm.u.a..=m.0 =a....M.mammmmrV.A=mmma- ._ _ _.________________ =MEMfEfNiNNWMEMmMM.a..gM.a.M.i.E.m.N-mW-mM-m-Mm-EM-mNM-ff-MiMMEMEMMMEEMMEMZMZMZMZE= 0.6 .==-- .s I._.i_.i_.i_=i=_=l_=l_=l__i_i.i.i._i._i.i__i_i__i_.i_.i_.i..1.,1m.1__M_1-_1__1-.1-....1.=1.1_-1_1-_1_1__1__1.1_1_1_1_1_1_11_1_1_1.1-1.1_1_1_rmm-I 0.4 0.3 mmmmm...mmmmm====mar=.=...7.0.-.-=..-=.-.-mmm=MEEEmmmmma=mmmmmmmma-lf-f=l=E-mmwOMmmummum ====MEEM= AM 11710211i=M -'----i=MMiMMINIIIIMIMift-illii-MEN-MINII MUMNI 0.2 TITIMMIIM 1111111=111111111111111 I IIIIIIIIIIIIIIIII 0.1 11111111111111111 1111111111 1111111111 I 11111111111111111111 I 1111111111111E111111! 1 .08 .06 mommommommommomm IiiiiiiiiIIIIIIIn .04 ------- --- -------.---------- - immommommimm immOMMENiiiiiiiiiiiiiiiimmill 1111111111 _1_1_11_1_1_11_1_1_11_1_11111111 I __________________-- m. ________ .03 billing Miiiiiiiiiiiiiiiiimmimi 3 .02 .01 11111 IIIIIIIIIIIII 12 14 16 18 20 22 24 FILAMENT VOLTAGE IN VOLTS K -69087-72A448 # New drawing GL -892 AVERAGE FILAMENT CHARACTERISTICS 66 II A 11111111111111111111 II 11111111111111111/111 64 1111111111 1 1 111111111111111111111111111511111 GL -892 ETI.173B PAGE 7 12-50 62 11111111111111111111111111111111111111111111111 LARGE TERMINAL OF BASE 11111111111111111111 1111111111111111111111111111 60 111111111111111111111III1111111111111111111111111 COLD RESISTANCE OF FILAMENT =- 0.031 OHM 1111111111111111111 11111111111111111111111111 58 11"11111111111111111111111111111111111111 56 II 11111111111101111111111111 1011 I 11111111111111111111111111111111111111111111 '11 54 FILAMENT SUPPLY K -69087-72A441 New drawing. 20 22 24 26 FILAMENT VOLTAGE IN VOLTS GL -892 FILAMENT CONNECTIONS WITH D -C EXCITATION WITH SINGLE-PHASE A -C EXCITATION BASE TERMINALS BASE TERMINALS WITH TWO-PHASE A -C EXCITATION BASE TERMINALS LARGE TERMINAL V=22 VOLTS A=60 AMPERES K-9033547 LARGE TERMINAL V=22 VOLTS A=60 AMPERES LARGE TERMINAL V=11 VOLTS A=60 AMPERES 12-1-44 GL -892 ETI-17311 PAGE 8 12-50 FILAMENT TERMINALS OUTLINE GL -892 PLIOTRON 120°NOMINAL FILAMENT CENTER -TAP TERM MIN. RADIUS 16 GRID TERMINAL 43 7" .1-.007"Dlk`4 ICM IN' 1.- 16 BASE 3232 ."-1 .43 7"-± PO7 "DIA. 120° NOMINAL ham -.500"±.0 07 "DIA . i 1 i MAX. t .438 "MIN .11111. MAX. DIA. 3g3+" 1" it 2 rMi AX DIA 2.000 "f .020" DIA ANODE 3" MAX. 41e DIA. 1216t 8 16- 8 20113"±. 3" 2L I7 2 11-6 MIJ.N. .187"± .015" L580" t .050" DIA. 111+111 816 -I 12-50 (11M) K-6966979 3-11-47 Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL -893-A DESCRIPTION AND RATING ETI-174B PAGE 1 8-50 PLIOTROil DESCRIPTION The GL -893-A is a three -electrode tube designed and capable of dissipating 20 kilowatts. The cathode for use as a radio -frequency amplifier, oscillator, is a pure -tungsten filament. Maximum ratings or Class B modulator. The anode is water-cooled apply up to 5 megacycles. *TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Minimum Filament voltage (single-phase excitation) * ® Filament current at bogey voltage (Single-phase excitation)** 175 Filament starting current (Single-phase excitation) Filament cold resistance (Single-phase excitation) Amplification factor, II, = 1.0 amp, E, =- -100 v 28 Interelectrode capacitances Grid -plate 28.5 Grid -filament 39.5 Plate -filament 2.0 *Technical information completely revised. Bogey 20 183 .0093 34.5 33 48 3.0 Maximum 21 volts 190 amperes 275 amperes ... ohm 41 37.5 uuf 56.5 uuf 4.0 uuf GENERAL ELECTRIC Supersedes ETI-174A dated 12-45 GL -893-A ETI-174B PAGE 2 8-50 TECHNICAL INFORMATION (CONT'D) Mechanical Data Mounting position Type of cooling Water flow on anode Maximum outgoing water temperature Required air flow to stem* Maximum glass temperature Net weight, approximate vertical, anode down water and forced air 15 GPM 70 C 2 CFM 150 C 12 pounds MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS AUDIO -FREQUENCY POWER AMPLIFIER AND MODULATOR-CLASS B Maximum ratings, absolute values D -c plate voltage Maximum signal d -c plate current Maximum signal plate input I Plate dissipation Typical operation Unless otherwise specified, values are for 2 tubes D -c plate voltage D -c grid voltage Peak a -f grid -to -grid voltage Zero signal d -c plate current Maximum signal d -c plate current Effective load resistance, plate to plate Maximum signal driving power, approximate Maximum signal power output, approximate 12000 -260 1480 0.8 7.0 4000 220 52 CCSt 20000 max volts amperes 60 max kilowatts 20 max kilowatts 15000 -350 1560 0.8 6.0 6000 190 60 18000 volts -450 volts 1720 volts 0.8 ampere 5.5 amperes 8000 ohms 140 watts 70 kilowatts RADIO -FREQUENCY POWER AMPLIFIER-CLASS B Carrier conditions per tube for use with a maximum modulation factor of 1.0 Maximum ratings, absolute values D -c plate voltage D -c plate current Plate input Plate dissipation Typical operation D -c plate voltage D -c grid voltage Peak r -f grid voltage D -c plate current D -c grid current, approximate Driving power, approximate A Power output, approximate 12000 -250 350 1.5 35 130 6 CCSt 20000 max volts 2 0 max amperes 32 max kilowatts 20 max kilowatts CCSt 15000 15000 volts -340 -340 volts 395 450 volts 1.5 2.0 amperes 30 50 milliamperes 150 200 watts 7.5 10 kilowatts PLATE -MODULATED RADIO -FREQUENCY POWER AMPLIFIER-CLASS C TELEPHONY Carrier conditions per tube for use with a maximum modulation factor of 1.0 Maximum ratings, absolute D -c plate voltage D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation Typical operation D -c plate voltage D -c grid voltage Peak r -f grid voltage D -c plate current D -c grid current, approximate Driving power, approximate Power output, approximate 10000 -800 1200 1.5 0.10 120 11 CCSt 12000 max volts -3000 max volts 2.0 max amperes 0.4 max ampere 24 max kilowatts 12 max kilowatts CCSt 10000 12000 volts -800 -1000 volts 1280 1500 volts 2.0 2.0 amperes 0.16 0.14 ampere 210 210 watts 15 18 kilowatts TECHNICAL INFORMATION (CONT'D) GL -893-A ETI-174B PAGE 3 8-50 RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR -CLASS C TELEGRAPHY Key -down conditions per tube without amplitude modulationl Maximum ratings, absolute values CCSt D -c plate voltage 20,000 max volts D -c grid voltage -3000 max volts D -c plate current 4.0 max amperes D -c grid current 0 4 max amperes Plate input 70 max kilowatts Plate dissipation 20 max kilowatts Typical operation CCSt D -c plate voltage 12,000 15,000 18,000 volts D -c grid voltage -800 -900 -1000 volts Peak r -f grid voltage 1430 1520 1630 volts D -c plate current 3.5 3.6 3.6 amperes D -c grid current, approximate 0.26 0.25 0.21 amperes Driving power, approximate 360 370 340 watts Power output, approximate 30 40 50 kilowatts *Air flow to be directed into stem through tubing in center of base. The flow of stem cooling air must continue 5 minutes after removal of filament and plate power. ()See drawing filament connections and excitation circuits, K-8639686. tCCS = Continuous commercial service. Averaged over any audio -frequency cycle of sine -wave form. A At crest of audio -frequency cycle with modulation factor of 1.0. 11 -Modulation essentially negative may be used if the positive peak of the envelope does not exceed 115 per cent of the carrier conditions. Maximum ratings apply up to 5 megacycles. The tube may to the tabulation below (other maximum ratings are the be operated at higher frequencies provided the maximum same as shown above). Special attention should be given to values of plate voltage and power input are reduced according adequate ventilation of the bulb at these frequencies. Frequency Class B r -f Percentage of maximum rated plate voltage Percentage of maximum rated plate input Class C plate modulated Percentage of maximum rated plate voltage Percentage of maximum rated plate input Class C Percentage of maximum rated plate voltage Percentage of maximum rated plate input 5 20 40 megacycles 100 85 65 per cent 100 82 73 per cent 100 80 64 per cent 100 75 64 per cent 100 80 60 per cent 100 66 50 per cent 64-L6-4 01 S110A011)1 NI 39V110A aVld peS1AGJ 8EIVIZZ-L8069-N 9 9 01 SU A MVP m..AMAIMIMIN111111In 711411 l'-= TAU" MEM. .-;72 MISEMMUSMA . - ... . 7M4q1.5:::41. MAIM MMEIMLOM.:rMEnblaIMMASOMMIN eumeterieurall 0 :RMOU.UMI- .°1:111;;;;PMIIMMUft memomelr 411: AM ! M.S. AMAMI. ZOMM.Z. 711V1rMOIMWMIITIMMME,MMOMMOIZAIRMI a 11110 0 . 0 . e III MIME .MEAMM ASSES .11MA IMMI !MSS ISMS IMMO 'V MMMUEOM OMMAMMMMOEUMMM.OS k MM MUM :MMUSMMMMM MEM: I MSS ANSI MM AMli M11 MMMMMMMAMRMMMMMUM V AMMAMMMI 11111 M %MIMI MSS AMUUMM AUMOMI sin mem= qmaommmaimmoarmimgonmiemlommlimmm: am MOMMUMMIN 9 U ESSUMMUMMEIIMMUM D-' S110A OZ DI1S1213.1.DVNVHD 2134SNWil 31V1d-01E0 1VDIdAl V -C68 -1O S1l0A01IN NI 39V110A 66VZL-18069-N SZ 0? SI 01 9 0 GL -893-A AVERAGE FILAMENT CHARACTERISTIC SINGLE-PHASE CONNECTION COLD RESISTANCE = 0.0093 OHM 200 175 150 I2s 100 75 Rheum IIIIE 1111111111 harnmerin 50 111!!!!!"."9110ee 25 5 10 15 20 25 FILAMENT VOLTAGE IN VOLT5-5INGLE-PHASE K -69087-72A287 II1Drawing revised GL -893-A FILAMENT CONNECTIONS FILAMENT BASE TERMINALS FILAMENT BASE TERMINALS 30 35 4-25-49 GL -893-A ET! -174B PAGE 5 8-50 V= 17.3 VOLTS An 122 AMPERES THREE-PHASE A -C FILAMENT EXCITATION FILAMENT BASE TERMINALS V.20 VOLTS Am183 AMPERES SINGLE-PHASE A-C FILAMENT EXCITATION FILAMENT BASE TERMINALS K-8639686 VI .10 VOLTS V2. 0 VOLTS A .61 AMPERES SIX-PHASE A -C FILAMENT EXCITATION V=20 VOLTS A. 183 AMPERES D -C FILAMENT EXCITATION NOTE: TERMINALS MUST BE CONNECTED IN CORRECT PHASE RELATION AS SHOWN 4-27-49 GL -893-A ETI-174B PAGE 6 8-50 GL -893-A AVERAGE FILAMENT EMISSION CHARACTERISTIC SINGLE-PHASE FILAMENT CONNECTION 40 nr" .I :::I.: rirmimor: .rer.t,o... 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MIR 111 1111111111.111 111 II III III IIII I mum 1111111M HIM III 11111111111111118114 fill 1111111111111111p11111111111111 .... 111.145011.8E18111111.9,811VM11111113111c11011101111111111111111111111111111118111 12 14 10 18 K -69087-72A285 IN Drawing revised 20 22 4-25-49 GL -893-A ETI -174B PAGE 7 8 -50 GL -893-A CHARACTERISTICS Ef = 20 VOLTS A -C ' 1000 MM 1:::: MMMM woe ......, KINUWEEMMIEMOnee Mime 11:11:111:::::illem C unemilm-mnitimmunisoremellemilmems p*-l.iMmeliOV.J.U.... v...,....., ii.m..n1m1e 1"1um" MUMM,AWAMMV MMMMMM AMMO= .,,,WIRSM0111101: MN NIAMOMMT,MMUMAMUM01011113::: MMMM MO MMMMMM INEMUKCIIMINemaNWINIVEMN MV.MIMIFAMUCIONMEMLIVWM.W311111MMU lemismalemmume Mal I_I .m...i.i.l.0l.b6g1:.:M:ev:.:VdehgSiwelMo6gliarn3d7 MMM 800 IM MENIANUMMUMUSUMENNII Milt /401011011101101:17011110111C . 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'11171101RX Rs 400 amee..mm wieh.--.vIreei-er.im ..enoemeer minelesmei eimeineeems MM -eneuenmemkezm.y-e,esrmeeeer.c.e..,.reMe..5.ellItMaMlfillef.t5.:1.1....5.4A-g.eI.Wn1w0l1a11110111111W11I.M11W11M12e5WAN IN MMMMM slielessornomerseno MENVIIIMMs MOZ MI - 7 ..A.g....110.N.sMr." be:-.mmeolMOMUKOW.lionasell 9::::1:11:::ffs ,PAWAO..01lIMIWZ.MIOSMS ......A1110..IiMUSUMWMT11 illa Cr) I- _J I- - UMW. MeneWeloe-umu.mseemrxm.emiremZa..gA,MeMmeEeMm.il.l.i.leEg0.0 ...ebt--_. ..-.wo meme,- 0 1 44- 1Ci..r .swiew:ir:=11 .."5.11:12'"": DOIMMIMMEMAIn.. 200 seemenesieriegiv- '-- .. :11.-zglgepromm.X.4501=11.- e ..mw.- -....r.ii 47.1.....T51.-,..114111.11UPSIORmarlimelerlimi i.l. . inegalimmem. ._ -.a-Zinn- .r-m4mememeimfomMMMMM : 461.11:4W,WEI.Mw. ..... 2aWmWS.I.M.M.I.s..1-..MIN-N. .-...W.tM.r.i4m1-M1MU1MAWM,alliminm MMUS u...-.M.mam 5U. .MfMleMM.M.iMlMim52M5M.MM,M muules.,_ N101.... .111MSEft ...MOM Urnememem: MAO -.. 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MUUMMIN.25.11MMUIW. -..MMEMMUMme5.1110MMMft ;LA -M Mb riaMTIVairei. n NOV -400 ;MEM::USEM0EMUU MMMMMMMMMMM MMM i MM b.-00VMM - M -600 MIR L.: : 1 O 14" -800 m1o1ms"M.M2M1M1M:M1MM0MMEAMMU lMiEnMIMMUMMMMMOMMeingEMAwMeeMme morn aradireusul 1: U1"11110:0 1W9I::::":01 MUM::::::1100001110USUMME SEW01001Mil:MUMMIMMI -1000o 0UMMO: 10 15 20 PLATE VOLTAGE IN KILOVOLTS K -69087-72A286 1111 Drawing revised :100 25 4.25-49 GL -893-A ETI-17413 PAGE 8 8-50 FILAMENT TERMINAL 6 - iliSTUDS MIGL-893-A OUTLINE .cco"-t . 3o" >,. DIA. 3.935" +.I25" DIA 4.687"±.0D2IA0. 3" I 316±16 BASE 6628-A + 2-1/16" ± 3/16" 3 MIN. STRAIGHT SIDE 3"-i- I" 4 -16 - .50d' 66"±.007" 2.280 ±.780" GRID 14Is 2'II" TERMINAL BASE 3935 4- 8 258+15 .500"± .020" 94-4 ANODE oar'. K-5344783 Drawing revised 1-50 (11M) Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 12-8-49 GL -8002 DESCRIPTION AND RATING ETI-175A PAGE 1 12-45 PLIOTRON DESCRIPTION The GL -8002 is a three -electrode transmitting tube designed for use as a radio -frequency power amplifier at high frequencies. Multiple leads for both the filament and grid connectors minimize the inductance to these electrodes. Maximum ratings may be used up to a frequency of 150 megacycles and reduced ratings up to 300 megacycles. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes . 3 Electrical Cathode-Filamentary Filament voltage Filament current Average Characteristics Amplification factor Grid voltage f Eb = 2.4 kv, lb = 0.5 amp l l Ef = 16 volts Direct interelectrode capacitances, approx Plate to grid ........ Grid to filament . Plate to filament Frequency for maximum ratings . 16 volts 38 amperes . 21.5 -50 volts ..8.7 micromicrofarads 10.2 micromicrofarads 0.90 micromicrofarad 150 megacycles GENERAL ELECTRIC Supersedes ETI.175 dated 4-45 GL -8002 ETI-175A PAGE 2 12-45 TECHNICAL INFORMATION (CONT'D) Mechanical Type of cooling Maximum outlet temperature Water flow Maximum incoming air temperature Air flow to bulb from a 1 -inch diam nozzle Gasket Net weight, approx Shipping weight, approx Operating position water and forced air 70 centigrade 0.5 to 1 gal per min 50 centigrade 8 cu ft per min Cat. no. 5182028P10 1 pound 5 pounds vertical, anode down MAXIMUM RATINGS CLASS B RADIO -FREQUENCY POWER AMPLIFIER Carrier conditions per tube for use with a maximum modulation factor of 1.0 D -c plate voltage D -c plate current Plate input Plate dissipation 3500 volts 0.6 ampere 1800 watts 1200 watts CLASS C RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR, PLATE MODULATED Carrier conditions per tube for use with a maximum modulation factor of 1.0 D -c plate voltage. D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation 2500 volts -500 volts 0 5 ampere 0.1 ampere 1250 watts 750 watts Ec 2Eb 4.0 14001 0 ce 3.0 a_ 1, z I- 2.0 cc GRID VOLTAGE IN VOLTS l0 +10.0I J I.0 Q_ 1 0 K-9033820 2 3 5 PLATE VOLTAGE IN KILOVOLTS GL -8002 AVERAGE PLATE CHARACTERISTICS (E----16.0 VOLTS A -C) 6 2-24-45 MAXIMUM RATINGS (CONT'D) GL -8002 ETU -175A PAGE 3 12-45 CLASS C RADIO -FREQUENCY AMPLIFIER AND OSCILLATOR, TELEGRAPHY Key -down conditions per tube without modulation. Essentially negative modulation may be used if the positive peak of the audio -frequency envelope does not exceed 115 per cent of the carrier conditions. D -c plate voltage D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation 3500 volts -500 volts 1 0 ampere 0.1 ampere 3000 watts 1200 watts 1.6 Ec E b 1.4 1.2 1.0 0.8 0.6 0.4 \\N, S3 0.2 0 K-9033821 1 2 3 PLATE VOLTAGE IN KILOVOLTS GL -8002 TYPICAL GRID -PLATE TRANSFER CHARACTERISTICS (Ef=16.0 VOLTS A -C) 4 2.28-45 GL -8002 ETI-175A PAGE 4 12-45 1200 1000 800 600 400 200 0 -200 -400 MMMMMmmmmMmMMWmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmwmmmmmmmmim MEMMEMMOMMOMENMEMMEMMEMMOMMEMMOMMEMMEMOMMEMMINOMMESMIMMMEMMEmminiM MMEMMOMMMEIMSMMMEEMMOMMVMEAMMEMmOoMmMmOiMlMMMEEMMMOEMMMMEEMMMOEMMMMOEMMMMEEMMMMEEMMMEEMMOEMmMmIuUmMmEEMMIMUiMmMmOoMmMmEoMmMmEMi IIMMEMiwimammMUMEMMEMMEMMEMMEMMEMMOMEMMEMEMEmmEMMEMMOMMEMMINIMSMINIMM MEM MMIIMMOMMIMMWMM MEM WillimmimmmEMMIOU MMEMmMmEoMmMmOoNmImMiMlEMm GRID CURRENT IN AMPERES -- MEM OMMEMMMMEMMMEEEMMMMEEEMMMMMIMEOIIMNMOEWMMMMMOEEMMMMWMMOEEMMMEMEMEMMMMOMIMEIIMMMEMMMEEMMMEPLMAMTEECURRENT IN AMPERES EMMEN MEMO IIMMEMMIMMWAMMMEMMEMMINIMMOMOMMEMEMMOMMEMMEMMIUMMEMENNNEMMEMEMMEMME OMMEMMEMENEMEMUMMEMMEMEMMEMMMEMMEMMOMMMMMEMEMEMEMEaumMOMMEMMEMEME OOOMMMMMMEEEmMMmEIMlUOiMMmMMuEUmMMMNWIIANFMEAMMMEMMMEEMMMEMMMEOMMNEOIMOMEMEMMMEEEMMMEEEWmMTeAMrMEmMMEEEMMMMMEEEWMMIIMMNMEEEMMMEOOMMMEMMmOAmMMoMEmEMmmMoEumMmmMmoMomMmmEmoMomEmmMmoMomEmmMm IIMMEMENWOMMMUMMEMEMEwwMMEMMOMEMMEMMEMMEMEMMEMEMMEMMEMEMEMMEMEM MEMINIMMWMOOMMMEMEMOMMEMMEMEMEMMOMMEMEMEMMEMMEMMEMEMEMOMMEMMEMMEM MEMMEMEMMORMISMNIMEMMEMMERMEMEMMEAMMEMEMMEMMEMMEMMEMEMMEMMEMMEMEM mmommommoommumorm0011100mmom000mg0000000smommummomommommomm000 mmiiiummmEummo0n0m1o0m1mi1xmi=smMilMimMmMum0u0m0m1immmimloimMmMo00m0m.m1m100m0m0u0o0m0mm0i0s0m000=00000101000 sm000mmommo0000m0mamorm0=00000000110000mminum000mmummommilimm MEMMOMMIMMOOMMEMMEMMOCROMMEMEMMIUMMEMMIIMMEMiMMEEEMdalimmummilMME MoMmEmMmMuEmNmNoMmEMoEmNmSaIsOsMaMmEMmEmMuEmMmMmEiNcOuMMmEmA0M0E0M0M0E0MM0E0M0M0E0M0M.E0M0ME0M0O0M0M0E0M0M0EM=M0O0MmM0OmI0MmMmE OMMW0m000mbmwommommon00001100m0maZEM00mmommummommommommomm OsimMmmoMammUmmmUoMuaoWmpmOmmmMma2MaWnrrEyniNmaZlmmIONMumIMloMEamMMImmECmoPOumOSMmmIMMmiEMauESzmMCuoEPMmmAMRmoEMumMEmmMMEmaMMiaUEmmMMEMmmMEemMMmeWMmlEEEomMMmoMZEmmEM0mUMM0iEM0nME0iMEM.aNES=mME0mMM0mE:M0o=M=m2Emm-CE0mAPMmmAM0oEMmmMM0mME mmilera0mg0mp0mmmagmmmummaammimmemmimmmo0m00arammmummommumm0 mmasommECEMMliviaMPAMEMBECEMMIMMIEWISTIAMMIMMEMPAMOMMINTIMmAmMEMEM inlamm.amommumma.s.-mmsmiommmmi.l-a11t1i1m0a0r.a.m-m04e0n0a1m1m.s.p-omimlm0fmfoimrpOoJw,E.N.0mmmmoemgmr.a.mmmmoummmmiaomn 46:2M0MMEMNSIMMUMEMMEMEPEOMMAULTMMOMEEZEM0OMMERMIS0OMEMMEMPA MO MO moommintimmgmmommmfficommmommomemmimmiiimmmummularammornifirammen ME -MmEoMm MOMMEMMIMEMMEMEEMOMMEMENEMEMMOMM6EME0OMERWOMMEWOMMEAMENE Jo ME limu0000m0mmummansmammomms00000mumemmnammommmonamommis MmEoMm0m0w0m0m00m1m1o1m0m1o1MmMmEuMmEmNoMEmEii0rmommmmiiigiuiarmmmmOuMmMmEoMmEmMEoNmSm-imammenmspiuam"mmimEsMsEmMoMmImNommffilm OMMOIMOMMEMEMMEMMEMMEMMEMEMMEMEMMERMITIMSZEMOMMOMMEMMELIEmmailMwM OMMMEMEMEMIOMMEMMEMMEMMEMMEMEMMEMEMEMMICENIMMSEEMMEMMEMEMOMMWENIMM OMMEMEMEMOMMEMEMEMMOMMMEMMEMMEMMEMMEMMEMMIUMMOMEMMEEMINMERMEAMOMM OMMMEMMOIMMOMMEMOMMEMMEMMEMEMEMMEmmummmommimmommosiMEEMmilimmommilim OMMEMMEMMINIMMEMOMMUMEMMENMEMMOMMEMEMMINIMMEMMOMMEMEMMEMNPVEMMEMEM K-9033830 1 2 3 4 5 PLATE VOLTAGE IN KILOVOLTS GL -8002 CHARACTERISTICS E=16 VOLTS A -C 6 3-1-45 45 40 35 30 25 20 15 10 5 0 K-9033816 2 4 6 8 10 2 14 16 18 FILAMENT VOLTAGE IN VOLTS 2-22-45 GL -8002 AVERAGE FILAMENT CHARACTERISTIC (COLD RESISTANCE OF FILAMENT ==.036 OHM) GL -8002 ETI-175A PAGE 5 12-45 10.0 9.0 8.0 7.0 ----- ----- imimumummumummom 1=1I1n11M1=I1N11IM0==IM==M=111=M=1M11I11 Mm==Im=Mo=mMu1Em==MMu=MmMmOO=W=Mumimm=muM=emmmIimmWuIM=M'omm=olim=mm=im=mM'um =mum -- ====m INIIIII=n1M1 MENEM IIII IMMI EINEM 1M11M11M.1=M11E11M11M0 =IMNIMIMIMMIM siiiimMIIMIN MEM IMNIIINIIIIEMMIN.EMN NM 11111111IMION MENEEE NEEMNMNEENN 6.0 5.0 MUM EMMEN INEEMN MUM INIMNIN. 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MMMEINIWEMINEINMEMEN.INI.NIEMMIBNE=IEN1=NME10NE11W/1.M1.A11IE1N0IEWNI.NMPMNMIIEMNIMONINMNIINIIEOMMMINEIOMMIIMMMOINMEIMOENNM MuEmMuOmoMMEENNEEMM NNUMNENNIOENMEOMNMOEMNEMRE'MS manam====== =IMO 522Ot ii2=MTAM Enimmium sumum=mum111m111m1111,1AI0M1M1O11IM1M1E1N1I1M1I MMOIMM M--M-.--N-M- MMMEM.' ummommimmemo 10000001 m. mu m mm. sou Ems m mom MEMEMME.. NWIEIMME1I1M111M11I1I1MM=M111E11M=NEIMMMO.N.SM=inInM= NEO =EENMNEMEEEE.NNMEEEMMMMMEEEONNMMOMMINMIAOMMMMMEINEIIMMMOMMMEEMMMMEEMMEMEMMEMMMMEEMEMMmEMomMmE MIMI MEM _urn NOMMINIM wmimmmusoemummummmis MmmATirZemffainr.nere.wrasz iIimmaimiiumnmiummm ams moue" MMOMMOMMMO .40 11111111111111111 MOIRMIMMOIMMOMOMMIONOMMI MMOMMOMMEN uNimu.mmmumm.0 Ira =Mr:MT= .30 =IMMINEMME.MININIU=NMIMIM.. NiumM1111111111111 MIIMININ N=IMMIINMIIIM1II1M1IN1N11IN1IM1MIEW minM1I1N1I_N1M11O1MUtMMEomM: MINIONSIONIM SWtAMMO.HMININEMMEMMEMM MMMEIIIMEMINMIMMINUIMMMI .......... UMMEMEINNISMEEEEMEMEEEN MOM NEMO .20 MImmtno ams .......... .10 fmrfamg2ia1=1rmmWwMA.UR.M!. MI111111.4111_11111 1111,151111 1M11I1M11EMOMINMINEWENINEIMMN EEMMMMEENN MEEMNMEEMN NMEIMMOE MMOENNOENMEIENNNESN ====M===== 0.11110111 MENEMMEEMM 1m11e1m01o11. 1wM.1o0I1NmMIIaNMnE =0=E=1=M==1=1==M=0m==1E1==N=1mM=oIN=mI=MsM=,M=UeImN=MRomI=ImNumImNuIEM=mWIMmmNM NENIEENNENEEIN ME1N.1E11I1NNMENENMEEIN nmsomm InNuMmINmEe1m11=mMoIEmNs. EMMEN EMMEN mm:::::::: mMoIMmI .UMmWu=mMmMo. mminummom 10 12 14 16 18 A -C FILAMENT VOLTAGE IN VOLTS K-9033617 GL -8002 AVERAGE EMISSION CHARACTERISTIC 2-22-45 GL -8002 ETI-175A PAGE 6 12-45 CENTER FILAMENT TERMINAL FILAMENT TERMINAL GRID TERMINAL FILAMENT TERMINAL INDEX BOSS 13" MAX. .1561.002"DIA. 32 DIA. .344"+.025" STRAIGHT SIDE---). 6 TERMINALS EQUALLY SPACED .I25"t .002" DIA. 115"MAX. 16 DIA. 02r+ 1" I I" MAX. 2 DIA. I.500"± .008"Di 4 .160"±*.010" 1.125"+.010' DI NOTE: THE TUBE BASE SHALIYBE CAPABLE OF ENTER- ING TO A DEPTH OF .319" A FLAT PLATE GAGE HAVING FIVE HOLES .147"*.001" DIA. AND ONE HOLE .178"*.001' DIA. ARRANGED ON A CIRCLE OF1" .001" DIA. AT ANGLES OF 60°*10'. -ANODE - II 216- 16 K-6912329 OUTL NE GL -8002 PLIOTRON 8-18-45 12-45 (8M) Filing No. 8850 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL -592 DESCRIPTION AND RATING ETI -245B PAGE 1 10-50 PLIOTRON DESCRIPTION The GL -592 is a three -electrode tube designed for use as an amplifier, oscillator or Class B modulator. The anode is capable of dissipating 200 watts for CCS conditions and 300 watts for ICAS condi- tions. Forced -air cooling of the envelope is required. The cathode is a thoriated-tungsten filament. Maximum ratings apply up to 150 megacycles. TECHNICAL INFORMATION These data are for reference only. For design information, see the specifications. GENERAL Electrical Data Minimum Filament voltage 9.5 Filament current at 10.0 volts 4.7 Amplification factor, Eb = 2000 volts; I,,=50 ma d -c; Ef = 10 volts 21 Interelectrode capacitances With external shield* Grid -plate 2.9 Grid -filament 3.0 Plate -filament 0.22 Bogey 10.0 5.0 25 3.3 3.6 0.29 Maximum 10.5 volts 5.3 amperes 29 3.7 micromicrofarads 4.2 micromicrofarads 0.36 micromicrofarad GENERALOELECTRIC Supersedes ETI-245A dated 6-47 GL -592 ETI-24513 PAGE 2 10-50 TECHNICAL INFORMATION (CONT'D) Mechanical Data Mounting position-vertical, anode or cathode end down Required air flow to envelopet Maximum bulb temperature Maximum seal temperature Net weight, approximate .15 cubic feet per minute 200 centigrade 150 centigrade 6 ounces MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS AUDIO -FREQUENCY POWER AMPLIFIER AND MODULATOR -CLASS B Maximum Ratings, Absolute Values D -c plate voltage Maximum signal d -c plate currentl Maximum signal plate inputt Plate dissipations CCS** 3500 max 250 max 600 max 200 max ICAS** 3500 max volts 350 max milliamperes 900 max watts 300 max watts Typical Operation CCS** Unless otherwise specified, values are for two tubes D -c plate voltage 2600 D -c grid voltage -77 Peak a -f grid to grid voltage 475 ZMeroasxigniaml du-cmplatesciugrrnenat l d -c plate current..39040 Effective load resistance, plate to plate 14000 Maximum signal driving power, approximate 16 Maximum signal power output, approximate 670 ICAS** 3000 volts -90 volts 540 volts 50 milliamperes 490 milliamperes 13250 ohms 20 watts 950 watts PLATE -MODULATED RADIO -FREQUENCY POWER AMPLIFIER -CLASS C TELEPHONY Carrier conditions per tube for use with a maximum modulation factor of 1.0 Maximum Ratings, Absolute Values D -c plate voltage D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation CCS** 2600 max -500 max 200 max 50 max 430 max 130 max ICAS** 3000 max volts -500 max volts 250 max milliamperes 100 max milliamperes 750 max watts 225 max watts Typical Operation D -c plate voltage D -c grid voltage Peak r -f grid voltage D -c plate current D -c grid current, approximate Driving power, approximate . Power output, approximate CCS** 2500 -360 550 158 35 19 300 ICAS** 2800 volts -360 volts 625 volts 250 milliamperes 60 milliamperes 34 watts 503 watts RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR -CLASS C TELEGRAPHY Key -down conditions per tube without amplitude modulationli Maximum Ratings, Absolute Values D -c plate voltage D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation CCS** 3500 max -500 max 250 max 50 max 670 max 200 max ICAS** 3500 max volts -500 max volts 350 max milliamperes 100 max milliamperes 1000 max watts 300 max watts GL -592 ET1-245B PAGE 3 10-50 Typical Operation D -c plate voltage D -c grid voltage Peak r -f grid voltage D -c plate current D -c grid current, approximate Driving power, approximate Power output, approximate CCS** 2600 -240 457 230 45 18 425 ICAS** 3000 volts -250 volts 520 volts 320 milliamperes 60 milliamperes 30 watts 680 watts * Tube located in center of a metal box 8 in. x 8 in. x 12 in. t Maximum incoming air temperature 45 C. Flow directed at the side of the bulb from 2 -inch diameter nozzle 3 inches from the center line of the tube. Center line of nozzle 1% in. down from top of plate terminal. An alternate method of cooling for many applications is the use of an 8 -inch household fan located 10 inches from the tube and blowing air directly at the tube. When operating under full ICAS rating it is necessary to use a finned anode connector. t Averaged over any audio -frequency cycle of sine -wave form. ¶ Modulation essentially negative may be used if the positive peak of the envelope does not exceed 115 per cent of the carrier conditions. ** CCS =Continuous Commercial Service. ** ICAS =Intermittent Commercial and Amateur Service. GL -592 AVERAGE PLATE CHARACTERISTIC (Ef=10 VOLTS A -C) 3.5 MMUMWMMEMEEMIME MMEMMO MEEWNN MMMEMMNMM MMMINEMWMN MEMEMEMEM MMMM MEnR EMEMEMERIMEMEMMUMMIMMEMMEM EmmOM EiMMlNMiUEmMMMMEEEMMMMMUMEMMEMESMNMENMMUIMMEMMMMEMEMEMMMEEMMMEMMNIEMNMEEMMMOMMMEMEMMNRMIMMMMUMMMEMMMEEMMMMMMMMEMMMMMOMMMMEMMMOMMIMEIMNMMMMMEMMMMMMMEMMMMMIEMMMIMMBEEMMMMMEIMENMMIEMMMMEMEMIMMMMMMEIMMOEMMMEMMMMEMEMEMMMNEIIMNMMMEMIMMMEMMMMIEMNMMIMMMNMMIEEMMWMM=EEMMMEEMMMMMMMEMEMMMMIEENMMEMM* MEMOMMEMMEMEMINAMMIMMEMEMMEMMIUMMEMMEMEMEMMEMMEMMIIIMMOMEMM MMMMMM SMINIONMEMMEMMEMEM MMMMMMM IIMMEMMMINI mENCOMMEMMEMNIMMEMMEMMEMMEMMEMMEMMEMEMEMMinimmommommommommommmommilEMMINISNIONMEMMINIMMEMMMEMEN MMEMMIIMMEMMEMMEMMINIMMEMEMMEMEMEMMEMMEMMUMMEMMEMEMMEMMEMMEMEMMEMMUMMEMEMIMMEMMEMMIIMMIUMMIMMEMMEMU 3.0 MMMOMMMMMUMMEMOMMMMMEMMNMIMMMEMMMMOEIMMMMIINMIMMIMUEMMEMMEMMIPNNet'2IiMlMlAMMMMMEMMMEMMMM1I1N1I11MMMMEEMMIMIUNMIEMMMIEMNEIMMEMMEMMMIMIMMMAMMNIMMIMIIMNMEIMMMMEIMMMEMMEMMUEMMMEOMMMMEMMMMEMMEININIMEMREMMEMMEMEEMm MNIMMIIMMEMMEMMEMMIIMMOMMEMMEMENEWIIMMEMMUMMEMMEMEMMEMMEMMEMMOMMEMMEMMOMMEMEMMIIIMMENEMEMEMMRIMMEMM IIMMEMMEMMEMEMENNEMIMMEMEMMEMPridEMEMIINNWAMMEMEMEMMMINIMUMMEMIIMMEREMMINMAMMENMMUMMEMEMEMEMMEAMMEMONIME MMONIMMEMMIIMMEMMEMEMEMMNIMM2MMEMMEMMT.12MMEMIIMMEMMEMMEMEMIIMMEMEMMIIMEMMEMMOMMIMMOMMMEMUMMINIMEMMEMMEMME MEMMMEEmMMMMMMIIMINNIIIiMMMmMEMmEMoEMImMMMEMMMMEMMMMMIMMMMIMMMNMIIMMMEMPEM2IMEIIMMNIEPIM2MMMOMMEEm.M1i2M1Mi1E1m11Mm112i111mMMM12nMMMaMEMmMO2mMMEoMMMPmMMLmEIuMAmmEMoMmMmIIrImMAMMoe2Imm0Nm1aI1uM1mMM1uIM1Im1MMm1MMMuMEMmMUmMmNEoIoMmMmOMmmMIomMNmEoImMAmMMmmEMiuMInmMMiMmMmIIuNNmmIIomMMmmMMmEiEmMMImIONuMImMMMmMMUoIMMmMMMmMMMOuEMMmMMMMmMEEuMMmmMMIomMMmoEMMmmEMimMEmuMMmmIEuNMumIMmmMEmMMiEMmmiIMmmmNEoIMmmMM 0mm1oo1mm1mm11oi1mm1mm1oo11rmMimMuuEmNmImmMaiMmnEmMaPomMmmAmMumMmMumMmkEmMroPa2imOniM2MmmUmMooMmImmUmiMiWmmMm2moMamOMMmMmoEimMnmEiNiMmnEmiMemEMmuEmmMomEmuMEmmMmoIomNmmIMmmMmuEumMmMmEmiMeuMmmEaMmEmuMmnMmMoMmMmMmommemwo=mmmmiommmmoommmmiimsm 2.5 minimmummummommwmammimmomwprammommummammumwAmommimmumm MMMMMMM mum MMMMM mmommommmummumminimm MMIEIMIIMNEIMMMMEEMMMMIIIMWMEEEMMIMNMEWRHigIMMMEIMIMIEMMMPESMOMEMMM2I1U1NMIMMEMMAMMEMMMEENMPM2EdMEPMEEaMMEEMMIMWIIMMIMMEMMEEMMMMEENMMEEMMMEEMMEMMEEMMMMEEMMMEUMMMMMEOMMEMMIMIIUMMMMIUUMMMMOOIMMMMEOMNMIOMM MEMEMMIIMMOMEN M 1112 MM MININIMM2111111111111MEMMEMMENM2IMMOMMEMEMPOMMEMMEMMM MMMMM 111111.11 MMMMMM MIIMMEMMEMMEMMOMMEMEMM miommmmiommmmuiurnsoimwmnEinmammommimmammmammimnotmmuummmmumomniawmnmimaummmiummmmoimmwmtmvuimnlmimMmMuMmMmMimmmuommmmoummmmuummmmumomsusmommommoummmmoommmmuommumm MIMEMMEMMHP2MOIMOM M F2 MM MMEMMEMMMIWAMMIMMEMMEMEMMMWOMWMENIMIXEMMEMMEMEMEMEMMIIMMEMIONIMIRMIMMEMEMMEMEMEMO 2.0 MMEIMENEMIMMMEMEMIMMOMINIMIESMMMMMOVEMAMMMMKMAMEMMMMaMMMOOMMTMAMEIMMNEIENMMEMMEMAMMMOMMEMMMME1dE1MM1MM1E21MO1MM1EMMMEMMNEEEMNMM2MEMEMOMMMMEMMMEIMMIMOIEMMMSM1AE1MM1EM1MMMMWMEIONMMMMMEEEMMM1IM1NIEIMMMMMIEONMMMMMIEERMMMMOEEMIMMMEEMMNEIMMMNMMIEMMMMMEEMIMEIEIMMMMSMIEOMMMMMMMMEIEMMMEMMMEMOEMNMMMIEENMMIEMMMEMMMEOEMNMME mimMEMMUMOMMMM 2 MMEMINIMMWMIIMMORIMEMEMMEMM2MMOMMEMMEMEMINIMMI MMMMM 1141111.11.1111MIMEMEMEMEMMEMIIMEMEMMIMMEMM MmMuEmMmIoImMmEiMnIgNIaMmAmMoEmMmMiMrOmMMiOuMmMmIoImNmUoMmEmNIoNmImMoMmImRiPmMuWMmEmMuEmMmEeMmMaOmMMmEuMnMiEmMPMEM2MOMMMMEMIEIMMMMEMMOMMEMMMOEIMMMMEEMMMMIIIMIMMEMMEMMEEMMEEMMMMEMOEMMMMIMNEOMMMMEMME IMIINIIMMMMIEMNWIAMMORMEMEMNAMIEMIMNMIIIMMUMMEMEMMMEAMMEEMMEMMMMEMnMaINIMMMMImMoMmAmMIoNmImMiMnEoMMwEnNiNmmMoMmMMmMiMmMiuRmImMiMmmMuOmNOmMuMmEuNmOmMiMEnMiMmEmMiEmMMmEuMmEmMoEmmMMoMmMmMomOmM MEMMEMMEMMIIM MM n MM mommommommaimmimmommompnamum MMMMM MEMMEMEMEN20gMMEMMEMMEMMIONME MMMMM MMOMMOMIIMM MMWUOMMMMEORMMMIMIMwMaOMMMEMMOMNEEMMEMMEEMAOMMME2MMMEEMMMEIMIMMEMMEPMEIIIMMIMMEMMEMMoMMEMMEMMEMMEEMMMMUEMMMMMEEMMMEEMMLMUMMEIMMMMOOtMaMdIIIMMMMIENMMMEMMMMMOIMMIMNEIMMMIENMIEMMMMEEMMMMIENNIMMEMMOMMMOMMEM MmiMlElMmMOEMMMEUMMMMWMMMMEMMMEMEMMEMOMIOMMAMIENOMMEMMEEMMMEEMMMEEMMM2E/211MMMEMMMEMMMMMEMMUEMMMEMMIMMEEMMEMOEMMMMDRME2MMdEMMEOMIMMEMEMMMMEEMMMEMEMNEMEMMMMMMEMPEMMMEMUMMMEMMMSMMMMEMMMEMWMIEOMMOMMOMMMIEI 1.5 mmillIMM2111 MMMMMMPMAMMEMINIMEMMTAIMMEMMEMOIMEMMOMMEMENE2mININEMEM MMMMMMMMMM minimmatmsnmommi MMMMM milmomminum MEMMIIMMOMMEMOMMIMEMMMEMMOM2MMEMINIMMEMEMINIMMEMPEwilIMMIIMMEMMIIMIUMMUMMEMMENSMEQMOMMONNIMMEMMEMEMMEMEMM MONMEMMMINIMMOMMOMMENW2AMMEMIMMEMMEMMEMEMIMMMEMMEMMERMUMMORIMMUNIMR=ROMMIMIXEMEMMEMMIUMMEMMOMMMUI MMOMMEIMEMEAMEMMIMEMPMMIMMEMMOMMEMEMMENIPM2111111MMEMMEMMINOMMEMMEMMWM=2MMEMMEMEMEMMEMMUMMIIMMWOMMEMME MINIMMIMMEW MMMMM MMEM211111.11 MMMMM IIMMIOMMEMMIMMEMEMNIIMMINIMMENIMMOMZWOMMEMINEMM MMMMM 111,MINIMMEMMMEMMINOMMEM MINIMMEMIIMMEMMEMMEWIIMMEMMEMMEMEMPM2dEMMEMMOMMMUMMEMMEMMEMPE20=111111MEMEMMEMMEME7MJUMME2oMMMUMMMEMMIIME OMMOMMIMONMEMPMEIMMEMIIMM MMMMM PEROMMEMEMEMMINIMMEMEMEMMEaMMOIM MMMMM MIIIMMIIMMEMMIPM2OMMIOMMEMMEMMEMEMMM imoimmmmismmmoommmmiainmammummummommommimmmummummwmaimnmiommmommummommommommummmmemummonmrmaommmmiommummommommmmoummmmoummmmamiMnMmMwMoMmmmuommimlommwmmmpuammeprn;eem:mmmsil 1.0 IIMEMEMP5MMEMMIMMENOMidlIMMEMMEMEMEMM MMMMM E211 -1111M MMMMMMM MIIMMEMMEMMEMMWM=RIMIOMMEMMOMMEMMEMEPEZMINIMEM MEMEMP2AMMEMMEMEMM20111111MINIMMEMMEMEMSFM2AMMIUMMEMMIIMMIIMMEMMEMMEMMM=rmIMMEMMEMMEMMEMMEMEMMELWOMMEMMEMEM OImMIoMMmEMmMEuAMmMMmMEiINnMOaMMmUMoMimMlmIioOMmMMmMEoEMmMMmMEEMEMImMNmENaMImMMeIMmNEmIMuEPmMZmPIoEMm2Mm1Eo1MmMMmMIuEOmMMmOMMIeMMmUEmMMoMEmEMmMMuMEmEMmNMMKMEOMMMMMMMEIMMWMOMIMERMMWEAMEMEMIMMMEOMMMEEMMMIEMAMERMM=IE1UM,MM4EE1MM1MM1EE1MMME=MM2EUOMRMIOMlMEmMMOEMMMEEEMNMSREEONMMMEMEMIMMIIMmAMoMMpP MiEmMmiMrMiMcWamMmMimmmummummmmiloimmmmael2idimmmmoommmmoummmmoMmMMmMuMmMmnUlMEiMmPmEoZmIMmOoMmMmMoUMmMmOoMmMmEuMMmEmMiImNmIMiInNsEaWmM2m0o1m11M11M1M1M1M11m11o1m11M1MMMMEMMMMEwMM!E=M.M1U1M1M.1211M1E1M EMIMRMMEIMIEMMMMEIMIMMMMEEMMMM2E0R1210111111111111MMUEMMMMIEIMMEMMIMNEIMMEIMMMP2RmZM2EMMMMOOMMMMMEUMMEMMEMMIEUMMMMIENMIOMMMMEEMMMMEEN.EO=MRMOIMMMMIINSIMMMMEUMMMNINMIMMMMMEMMEmMoMuEnMmPaEi2mmmMuEmMmMoEmMmMuEmMmM mmumnommomnuamlmuamimmommommommummmnonimmamrimmummamsuommmmoummmmoummmmomommimmommummuemgni2mduommmmuummmmuommmummommommomm=maommmmoemrmzoammmmMuMmMmMoMmmMoEmMmPoVm.mMi1m1p1 0.5 EMME2AMMEMMEMMEMMOM=MIMMEMEMEMMEMEMMMEMEMME=2011111MMMINIMMOMMEMMEMMEMME=asiONMEMEMEMMEMIOMM MMMMM 11111MORE2 MnMMMoUImMNmENMoOEMmMMmMEuMMImMMOmEMaMMMmOEmTMmrMamEmMuOMmMEmMMMMoIImINmMMuME=mMaImmMuiMmlElmMIMeMEmMMEaMMmUMMmIRiI=Mm2MmMEuEMMMmEEmMMEMMmEMMmMEoMMmMMmMEiMMMm:Im2N1oE1wM1EnMMrMEIaMId2M0eM1Mm1UeMMmMMiEEMMmMMmEEiMMnMMIEiNMmAMmMEMoMEmMMEmOMiMMBmERmM.Mu2EmmMomPmeIm=Mo=ma2mmIimmMomMuEmmMmgEimMmm4g4m OmMwIaSsRs2idmImMuMmOmMmMtEmMEaMmEmMoMmEm2mRiomMmMoEmNmMoEMmMmEoMmEmMlaMmMmMoMmM MIMmmMeMlMtMammmoummmmoimlmiimmniinsuommmmuumnmmoammmmnommagmgoimummommmmoommmmoimmmmuimmnisnwvyetmi MUMUMMIMMEMmillEMEMEMEM MMMMM 11MMEMME:24111.111111111111MMEMMEMMINIMMINIMEMMEM2mOMMEMMEMMEMEMMINIMMOMMEMWM=2wOMMME MUMME2mEMNIMMEMOIMEMSEWIRELIMmillMOMMEMMEMMEMMINIMMINIMENT=2mMMMOMMEMEMMIOMMEMEMEMMEMME=2OMMIIMOMMEMME vummmommmmmemmmem=mzmmammmmRo.m.mmuzuwmmmmMmMmMmMmMmMmMmmmmmmmmmmmmmymmnm=.msmmemmmmmmmmmmmmmmmzmam.mMmMgMmMnM=mmiamammummmmmMmMmMmMmMmMpMmImNmOmMEmMmMmImNmImM 0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 K -69087-72A113 PLATE VOLTAGE IN VOLTS 3-11-47 GL -592 ETI-24513 PAGE 4 10-50 G L- 592 CHARACTERISTIC CURVES E,= 10 VOLTS A -C - 1015111 MEERUMESIMIN 500 M11E04M1O1N1M1M1E1E1MMMIEONMMMkOOMMMMIIMNNOIM.CA.1M.OMM1E1MM111 IMMONINEEENOMOdEMONIIMIMEME 11111EMOMEMEU MM me MM NWEBOEME1 ME 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WOUMIBE 0 500 1000 1500 2000 2500 3000 3500 4000 4500 K -69087.7A116 PLATE VOLTAGE IN VOLTS 3-24.47 GL -592 ETI-245B PAGES 10-50 GL -592 TYPICAL GRID -PLATE CHARACTERISTIC Et= 10 VOLTS A -C MMEMMEMMEEMMMEEMMENMIMIEMMMMEEMMMMIOIMMMMEEMMEMEMMEMMUIMIIMUUMMEMMEEMMMEOMMMMMMIMIMIMEMMEEIMMEMMOMMEMMEMMOMIEMMEMMEINNIIIMMEMMMIENMIMMEENMM1E1M1M1E1M.M1E1M1MMMUEMMMMEIMMEMMEOMMEMMEIIMMMMEEMMMMEEMMMMEEMMMM MOMMIMMEMMEMIMEINEM EMMEMEM NOM UMMEMINEMNIIMMOMMEMMEMMMEMMEMEMEMMEMMEMOMINIMMMEMMEMEMMEMMINIMMEMEMMEMMEMEM 111111 MN M 0 m n m n ME m MEMEE =oMN MEM m im 1:11:1111:::1111111111 111111111 ma m 1n1n1u1m1m1i11n1i:k1u1m1m11omlummimm mnmnmmommommommumnsommommom mnommonnummummommmummonim mommommonnumm I o 1 m m MMMErANMLEEMNE IEEMIIIIHHIEMHHIIII 1_i11111111i11I111 n11111111 MEM MEMEMMEMEMEM k ii Mbh. MEM . I 'NM ' 0111 N. 110 mil ME M En UM M iii E IIa 111 MM .M,1 III 4M MEMOMEMEMEME EMnl EEOEMOMCEMNMEAhM MME MMEMM MEmMmMENE MEEM liiiir,. 11'4 I '111"M1E11111111111 1111 0 MEMEMEEMEMMEMEEoMMEEME illllll 1111 MEMEMEMEM000 MMEMMEMEMMMIW .-MOM EMMEMEM L M-.Nix - . nn 0. n I M zre . 11 NM 0. 0.1 mnormnsisomi-mmmuo1m11mo1m1m1l11I1ii1n1a1g:m1u1m1m1e:m:1mi!!a!1m1i:Il:1i1a1L1A1n1ia1l1a1:i1l1m11i1n:m11i1l1l1a1m1m1a1:n1i1m1:m1u1m11n1a1n1n1o1m11o1mmis m mImomnanv,nqdn4MiMtimmorm1s1l11l1lfitmnnlr! lii1;71m17711-1=.11m,1116B16.1:.11111119 --m- "A .! MMMMMMMMmmnummil 0 IIlI " MME il 000 EN 0 500 1000 K -69087-72A117 1500 2000 2500 3000 PLATE VOLTAGE IN VOLTS 3500 4000 4500 3.11-47 5000 GL -592 ETI-245B PAGE 6 10-50 5" MINI. 16 STRAIGH .500 ±.007' DIA. PLATE TERMINAL .f. II" 52 4 GRID TERMINAL 73-72"MIN.7RAIGHT .125 ±.005" DIA. GRID TERMINAL w.s. (im) I"MIN. STRAIGHT 90°±5° CENTER FILAMENT TERMINAL 6°1A °5-- FILAMENT TERMINAL J2511.1..005" 90°'° FILAMENT TERMINAL, FILAMENT TERMINAL AND TUBULATION ARE SO ALIGNED THAT THEY CAN BE FREELY INpERT- ED INTO A GAGE THK. WITH HOLE DIA.J5 5" .186" 8.350" RESPECTIVELY, LOCATED ON THE TRUE CENTERS BY THE GIVEN 60° DIMENSIONS. N-21200AZ OUTLINE GL -592 PLIOTRON Tube Divisions, Electronics Department GENERAL d ELECTRIC Schenectady, N. Y. 12-7-45 GL -891-R DESCRIPTION AND RATING ETI-246C PAGE 1 9-51 PLIOTRON DESCRIPTION The GL -891-R is a three -electrode tube for use as a radio -frequency power amplifier, oscillator, Class A modulator, and Class B modulator. The construc- tion of the filament permits operation from twophase or single-phase alternating current, as well as from direct current, for all classes of service. The plate of the GL -891-R is air-cooled by means of a special radiator which is fitted to the tube by the manufacturer. The plate is capable of dissipating 4 kilowatts of power, depending on the service in which the tube is used. The GL -891-R pliotron can be operated at maximum ratings at frequencies as high as 1.6 megacycles and up to 20 megacycles at reduced ratings. TECHNICAL INFORMATION GENERAL These data are for reference only. For design information refer to specifications. Electrical Data Minimum Bogey Maximum Filament voltage 22 23 volts Filament current at bogey voltage 57 60 62 amperes Filament starting current Filament cold resistance 0.031 -120 amperes ohm Amplification factor Ee = -500 volts, Ib =0.45 amperes 7.6 8.5 9.4 Interelectrode capacitances: Grid -plate 25 28 32 micromicrofarads Grid -filament 15 19 23 micromicrofarads Plate -filament 1.5 2.5 3.5 micromicrofarads Completely revised. GENERAL ELECTRIC Supersedes ETI-246B dated 8-50 GL -891-R ETI-246C PAGE 2 9-51 TECHNICAL INFORMATION (CONT'D) Mechanical Data Mounting position Type of cooling Maximum incoming air temperature Required air flow on anode Plate dissipation-kilowatts Air flow-cubic feet per minute Static Pressure-inches water Maximum glass temperature Net weight, approximate 100% rating 450 0.5 80% rating 380 0.36 vertical, anode down forced -air 45 C 60% rating 300 0.20 150 C 46 pounds MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS AUDIO -FREQUENCY POWER AMPLIFIER AND MODULATOR-CLASS B Maximum ratings, absolute values D -c plate voltage Maximum signal d -c plate current Maximum signal plate input$ Plate dissipations Temperature of air cooler Typical operation (unless otherwise specified, values are for two tubes) D -c plate voltage D -c grid voltage Peak a -f grid -to -grid voltage Zero signal d -c plate current Maximum signal d -c plate current Effective load resistance, plate -to -plate Maximum signal driving power, approximate Maximum signal power output, approximate *Continuous Commercial Service. Averaged over any audio -frequency cycle of sine -wave form. CCS* 10,000 volts maximum 2.0 amperes maximum 10,500 watts maximum 3,500 watts maximum 180 C maximum CCS* 6,000 8,000 volts -630 -860 volts 2,060 2,260 volts 0.5 0.5 ampere 2.5 2.10 amperes 5,000 8,000 ohms 110 50 watts 8,000 10,000 watts RADIO FREQUENCY (Key -down Conditions Per Tube Without Amplitude Modulation)11 Maximum ratings, absolute values D -c plate voltage D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation Temperature of air cooler Typical operation D -c plate voltage D -c grid voltage Peak r -f grid voltage D -c plate current D -c grid current, approximate Driving power, approximate Power output, approximate CCS* 10,000 volts maximum -3,000 volts maximum 2 0 amperes maximum 0 15 ampere maximum 15,000 watts maximum 4,000 watts maximum 180 C maximum CCS* 8,000 10,000 volts -1,800 -2,000 volts 2,400 2,700 volts 1.14 1.33 amperes 0.09 0.140 ampere 215 375 watts 6,500 10,000 watts *Continuous Commercial Service. IlModulation essentially negative may be used if the positive peak of the envelope does not exceed 115% of the carrier conditions. APPLICATION NOTES GL -891-R can be operated at maximum ratings in all classes of service at frequencies as high as 1.6 megacycles. The tube may be operated at higher frequencies provided the maximum values of plate voltage and power input are reduced as the frequency is raised. (Other maximum ratings are the same as shown under MAXIMUM RAT- INGS and TYPICAL OPERATING CONDITIONS.) The tabulation below shows the highest percentage of maximum plate voltage and power input that can be used up to 20 me for the various classes of service. Special attention should be given to adequate ventilation of the bulb at these frequencies. Frequency 1.6 Percentage of maximum rated plate voltage and plate input, Class C un- modulated 100 7.5 20.0 megacycles 75 50 percent Buno.la pespkazi 40 WZL-L8069-N SEIOA NI 30V110A 31Vld 00051 00001 0005 mmim11111111111.11111111111110111MIEM MIIIIMIPIMIIIIIIMINIMMINIIIIIIIIWABWAmu,' AMPAIIIIIIIMINOw.oNimillir-.4 AIWAIIIMIAMMIK/111110,411111WAMEr IrMITAIIIIIVAIMINIV41111111 IMF AIMMIKAIMIVAINIVAIIIIIIIIIIVAIII /MI ANAInW4u1AA1rI1A4mI1I/11Nm11o1W1r11EA"1i4E/rm41A11lE11o1m1Vu1111IroM11a11r/w/I44iWw1Er1MAN1AP1iI1AmiM1nM1EIM11AErIIS4IP1IIAIN1MII1IMII1IIMP1III1IAKNI1NN1II"IIIIFM~MNAAMAIilIIIlINIrENMEII_IIIN_MN.TWTIMANIIVIIW1MPA1AM.1=4IEI11WAW17IM4A.A11MIIEI1NII1IAMEI1IIrIIrAMIA.NMIEMFVENA4MFMI1NI1ANAI1IPN1IIMV41IN11_MMN11WNU11IA1M1M/11EI1I1NI1MIWPIU1WA1MAMI1INIIAN,II4IIEAIV1Eil1MAEF1PNI1A.I11M.171I1.rA11Fa1II1MMm1.14m,14WMumIiMnMudIrInl.i4ns1, E111111111EIP'IMIEWANNIF AWANINIMAIIIIM M111111111111/411111111/411.11U/411111111.4111.11111111,41111111r IINNIIIIIIIWININFAIIMW r41111111WAMMAIIIIIII AIIIEIIIIINMEFEAMIIMNIINVFAAINIIINIIINMFIANMIMMMKEIJMIIIEEINIMIIIAIAEINNrAEVMVAMiNll, rinseI I .4MINV Ell/d5tErAk ANNIVAIIIIIIMANAIIMIIIIMEEVAMMVAIIIMMAIII,411111WAIIMM4=1 APINIKIIIMIV.111111111,AMMTIIIIMEAMEN/EMErANININNINIMIMINIMMINEF N_AENIall Nr AN _.emu,,ucwv.r..r........w..........u._r,.........._,_..,, m,1111' _ giliErACIMMINIMPAI111111111,41111111114111111111/AMIIIINWEENWAINIWAIIWIIIIMPA mNImAIWuAmINwEFaMm111 W401101/ AIN AIM AMEIW/Mell 1111.111/We AAVMIVIIK.AIIlIrII'!IIidI/AirI,Mr1IIN41V1A1.I1I 111AIIIMNFI_AAMMEIEYTANIEVAMMWAIIIIIIINIMIEMENIVANWIVAIMINIMENWAMIMLIEM' PF ANSIMPAINI 4C11111,1111111111P II/ /1111111.11111NIVAME Ir. IIIIIMMINM rAANmE11W11I. JIIIIARMPMIEFWACAII4II0N1V1A1M/4P1A1I.II0II1N1I41111/41111111111,/1/1111111111111,1411%1111E11M1I/A41M1M1.0E1N..I.N.MIMWMANIMNI/IIWMMM/ENMMIIII AIA W AMININV II MIINGINW MIME NIIIMEIM1MNINFN11AMMM1EN1V1EIP1VN1I1AAKNMMIIL.I1MM1T1III1II4I1VIi.I2,AI6IIN4VA15AIri3iIMINMEAlWo.UIWmUoMARM/IENEIRWWMWUEM/ENMiEMM/lAN/l4M'E4ElE1k=WIA.1Nm1E,'II11IIwIVIN1I1III/1MM/1MW4W1MI1N1MA14I1'NA11I1NIIM111AIEI111III/I111M4INI1111, M11111I1,M111MI1111I1I11A1,I1E1A511I111//II1411NIN11I11III111I1MII1IK1I1N1M1I11IIN1IM,IMI1'IIIIIIMIM1MMNI1IOAAIINWMNWNINAAII/IIIMIMIIIIMI/IIIMIEIMIII/1IMIIMIII1M/EIINMO1IMVW1NWAEV1IW1NMU/M1WMN1OAMEW1AWNVU/EINMNINIEIIIEIII/IIIIIIMIIA"IM%IIMNIBEIMIMMIMNMEEIWMNM/I4MII1INIMI1MII1NV.1II MMNNIMMNNI IIIIIIIIIII MMMIE=N IIIMI =MMIII.I EINWINWWA/LIi4ii0llI1N4C1I/U7M11N1W1A11N1N/E11V1IIMIIIIIINMAAINIIIII1/11/11111111111N1rMiNNINEIEIMINIINNIIMNII1N1E1E1 NM/IANNIIINAMWIIEIIIAIMll WAIIINN JIIIIIIMIMWAIIIIINIAMENAMMEIVNIENUMENEW AMIE NMI NI MIIIMIIMINMIJAIMMINIINI 'UAA1N41M1E11L1N, IAIMNAIIIIIIIIIITIIIMMMMIINAEl MWIIMIIIIIIMIIIAIIIIINIIEMIMEWINEMNIMIVI IIIMII/ IMNIa 1111111.1111111111111MNIENFAINW MENIIIIII MINI MEM ANEW MIMI NEW NM A INNEIIMIIIIMIIIIMMMMINININIIVIIIIMIMIIAIVLIINNIMIIIMMEANIMINIENM/ IMNIINMIMIEMEPNMINU1M11/1N1E.1NWEEIEMWEAMNI' AIlll 1IM11E11M11IN11EEIMNEIIMIIEIMIIIII=EMNNNINWI PEILIINMEIENMINMEINIIIIMNMAIINMINIIEMWIN IIMIIMIIM11M11I1II1I1I1NWWIIIMNINI .MENIIINMIINIMM=IIMMIIIMIII1IIMMIIIEIEMMNMMWINEI.MMNMMMMMIIEMENMWMICNC7MMMMIMMIMENAWIIIMIIIMMIIIIIMIIIAII_MNIMIMNMMIWINIMMN1E11I 1111111111.11MMMINIMMII11111111111111111111 I ICA I 0111111111 MIMI INIMIUMIE IMIll 1 -17 111.11E NM 111111E WM WM 111111111111111111111111111111.1 11111111111111111LEINIIIMINIIIN IMMO MEN MI MIMI I 111111.1111111111111111111MMEEMEMNERIIIMP4INME111111111I MEM/M111/ MINIM IIIIMMEMIII=MMENNIIIMINIIMMINMEIM EMEIMMEIMINIIIIIIIIIMMIMIN1111.11111 NMEN1111111111111111111111111111111MMIMMENN MIIIIIIMIN1111111111111111111111M=11111111 MMNItNMEENIMVNMIAAZIJMMIINIIIIINIIMNIIIIINMMNWEVEWIEIMIMINIIIIIMNNIIIEIIIIMMMMEIIMIMNMIII IIIIIIIIIII MEM Nom MMNIMoIIIEmIIINNmEIIMIiInIEMuIEMmNIImIIMIMuMEmEMMMuMmMEINmIMIImMINMIuNInIIIIIiIINnII ENE MEM 11111.1111111111MIIIMMIEN 111111111111111111NE INIMINIEMMIIMINIMIN MIIIIIIIMENIO IMENIMImmE11111111.111 MMMEIIIIIII NNIMNIWNIMIENMIEEMNINIEIINNIMEI IIIIMIIMEMII 11.111111111111111111 IIIIIIIMENIME ME MINIMMEN EE 11111111111 IIIIIMMMENINNEI N.IIIMMMININMEEEMMIMNEEMNNMEEMEMMMINI IENMNIMMINEENIt.t.MPISN ZNAM.11M11B1E111m11e1o11w1.1.. =IIMmmMamrIN/i0mE21IuL1sI1Ni1vIIMIINIillEo1Iw1SM. i1Mm1I1Nm.1IM.u1i IMIIIIIIMIIIMIMENNIIIMENIII MMEEIWallle/1r1lI1M0I1IEME1 MEMIUMMINNIMMIM IMIIIIIIIIIIImi PAYE MIME IIIIIIIIIMINJEMIN MOOMM MMMEIMMMMEIMNEIMAM.E1MN.11 MmEM 1=11%MMMO.UM MO NMI MN NMI 111.1111 EMWEE ...NNNMEI NEM == EE_ MNNMMMNMEN =EN... MImN NMMNMMMEMMEMm IIIIIMMEEMMEMNIMMEMEMEMEIMMEM MEMINEEMEEMIMEMEEMMMMMUONNNNEOMMINMIIMNMMOMMINMEIEN IMIIIMEMMEEMMEMEMMUMMIMMMEMOMMIMEI N ENEMMENENNENN MININEMMEEMNNEIMMMMEINMNMOEMEMMIMNMIMEMMIMNEIINMNMIEENMIEJIIMIMINMEIMMEEMMMMIMINMNEIMMMINIENME I IIIINIIIIIIIIIMNIMIMIEMIENNMIMEIIIINEINIINIMIMIIIMIMIMIMMIIIIIINIIIINIIIIIIIIENIIIIIIIIIIM11I1I111M11111111M11111111I11.I101I1MM.11I.1M11I.E1I1 EMEMEINEM11111111111111111.1111111.111111111111MIE FINE =MINEII=MINIONIIIIII NEE11111111111 EMI 111111111111E111111111111111111.111111 =II I MIN 11.1111111111111.11ININNIMME 11111111 ""Illm"'" IIIIIIIIIIIIIll1..111m1..u..ss:.a..i IEEE IMMIIIIIMIN EIIMIIIIMIIIIEIIINIINEINIMEMNIMIINIIEIME1E1I1M1. NEN 111111=11111111.111NE 1II1111I1N1I.M11M11E11N.1I1II1I1II1I1IM11E11N1I1I 111 11N111IE111M11E1ENMI.M.I NOLLV11DX3 3SVI-Id-310NIS D -V S110A ZZ = /3 GL -891-R ETI-246C PAGE 4 9-51 *GL -891-R AVERAGE GRID -PLATE TRANSFER CHARACTERISTICS Ef = 22 VOLTS A -C SINGLE PHASE EXCITATION 3.0 -5 2.5 2.0 1.5 0 1.0 0 O 0.5 0 K -69087-72A445 +Revised Drawing. 1000 2000 3000 PLATE VOLTAGE IN VOLTS 4000 GL -891-R AVERAGE CONSTANT -CURRENT CHARACTERISTICS Ef =22 VOLTS A -C SINGLE-PHASE EXCITATION 100 , 0-J b61114,1 w 500 niattiiNS4a41ie:liigohiltkh1o, 11 - 0 > 0 0 iikiOleiei kilpioirip.tmsl1pI _At%il CD a40li414li11k1m1it4tltkthk0 mil1 AIM tlIiiiikila,iimpl0111411111kiko- I bli NIb111111PEOPMMPII mom -500 1m1u1m1m1m1u1m111m1i1l1111h1.001h1..1.1h.4..114111.11111b1h1,11111-11,1iqf$tA1,1.1_14:41;p0l0o1o6p-i-llwagmmommerim IIIIIIIIIIIIIIIIIIIIIIMIMAMIIIIImIIImIIiIIIrIIaIMIlMIElMIiOIVnIatIliitiinMftMtIaiCgbMai44llhlaiilhrolll1ui10hl1ri1blb1i1R:u1l11b14r0ARb1iA14a14i1_04w11i11l.g_l14o1110gb6p/2.o_1irl. limil -1000 M1IIEI1MMO1MMM1OENM1EIM1EIM1IMEI0MMEMMMEMIEMENMMMEIEMIIMIEMNINEEIEMIMMIEEINSIIMMPIImhiMliMM--lEEMl-E_iA__l_it_aIhl_AllilshOlMiMrAlNiitmhiOllaiimipiaiglIlNiIAgAnMiMmEMniiMli.li ''' -1500 4000 041111111411iplipp#111110411111:1Mr. 411% '4 4141 111111114111111111111 8000 12000 1600 K -69087-72A447 Revised Drawing. PLATE VOLTAGE IN VOLTS o0 GL -891-R ETI.246C PAGE 6 9-51 GL -891-R AVERAGE FILAMENT EMISSION CHARACTERISTIC MMMMMMMMMMMMENEM MMMMMMMMINIIIIMM=11111111111111MMMMMMM 10 8 MMMMM MMMMNI MMMMM , re 4 3 2 11, numminnumMMMMMMMMM MMMMM MMMMMM MMMMimmmmimminonmimi MMMMMMMM onmwmimin 1.0 211111111111MMINIEMMEMMEMIIIMINIMIIIMMENIEMNIMIMINIINKAMINIMMIMIMMISIMMIIIIIIIIMIIMMIIIIMMIMMEMMEMIMMI1111111 0 8 0.6 0.4 0.3 0.2 C 0.1 .08 .06 .04 f:L .03 .02 EC nr1111111MIMIIIIIMIMMIN1111111MMMMMMM MMEIMMMMMMMMMMMMMMMM MIMM MMMMM 5 == == MMMMMM MMIIIIIIIIMMINNINIMMINIMMIIIMMIIMMIM111111111MMMIn MMMMMMM NIM MMMMMMMM .01 PONMEMENIIIMMIMMEMMEININIIMPIMMIMEMMINIMMIIIMMIIMMMIMMEMIIMIMMIUMMEMMIIIMMEMMEMMENIIMIIIMMI 12 14 16 18 20 22 FILAMENT VOLTAGE IN VOLTS K -69087-72A448 Revised Drawing GL -891-R AVERAGE FILAMENT CHARACTERISTIC GL -891-R ETI-246C PAGE 7 9-51 66 64 62 LARGE TERMI- COLD RESISTANCE NAL OF BASE OF FILAMENT = 0.031 OHM 60 58 56 FILAMENT SUPPLY 54 8 K -69087-72A441 4Revised drawing 28 22 24 26 FILAMENT VOLTAGE IN .VOLTS WITH D -C EXCITATION BASE TERMINALS WITH SINGLE-PHASE A -C EXCITATION BASE TERMINALS WITH TWO-PHASE A -C EXCITATION BASE TERMINALS LARGE TERMINAL V = 22 VOLTS A = 60 AMPERES K-9033547 LARGE TERMINAL V = 22 VOLTS A = 60 AMPERES LARGE TERMINAL V =11 VOLTS A = 60 AMPERES GL -891-R FILAMENT CONNECTIONS 12.1-44 GL -89 1 -R ETU -246C PAGE 8 9-51 FILAMENT TERMINALS OUTLINE GL -891-10 120° NOMINAL 6"R. MAX. RADIATOR HANDLES 900 NOMINAL FROM GRID ARM 6 R.MIN. GRID TERMINAL " 4371 .007" DIA. Te MIN. BASE NO, A3 - 55 437.igr " 2E MAX. DIA. FILAMENT CENTER -TAP TERM 120°NOMINAL PPA7 14"MAX. 3"DIA. -Trg MAX.' ii± it K-6966980 Revised. 9-51 (11M) ANODE 7 7" IN. ' 8 DIA. 71-1 I-e"DIA MONOGRAM 161Z:+ 8 10±2 5-4 Tube Department, Electronics Division GENERAL ELECTRIC Schenectady, N. Y. 11-11-48 GL -892-R DESCRIPTION AND RATING ETI-247 PAGE 1 8-46 PLIOTRON DESCRIPTION The 892-R is a three -electrode tube for use as a radio -frequency power amplifier, oscillator, and Class B modulator. The construction of the filament permits operation from two-phase or single-phase alternating current, as well as from direct current, for all classes of service. The plate of the 892-R is air-cooled by means of a special radiator which is fitted to the tube by the manufacturer. The plate is capable of dissipating 2 to 5 kilowatts of power, depending on the service in which the tube is used. The GL -892-R pliotron can be operated at maximum ratings at frequencies as high as 1.6 megacycles and at frequencies up to 20 megacycles at reduced ratings. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes .3 Electrical Cathode-Filamentary two -unit type Voltage per unit 11 volts Current per unit 60 amperes Amplification factor 50 Direct interelectrode capacitances, approximate Grid -plate Grid -filament. Plate -filament 31 micromicrofarads 20 micromicrofarads 2 micromicrofarads Mechanical Mounting position vertical, anode down Cooling: Air flow of 450 cfm normal must be started before application of any voltages and continue for at least 10 minutes after removal of voltages. See table on page 2. GENERAL ELECTRIC GL -892-R ETI-247 PAGE 2 8-46 TECHNICAL INFORMATION (CONT'D) MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS CLASS B AUDIO -FREQUENCY POWER AMPLIFIER AND MODULATOR D -c plate voltage Maximum signal d -c plate current Maximum signal plate input A Plate dissipation A Radiator temperature* D -c grid voltaget Peak a -f grid -to -grid voltage Zero signal d -c plate current Radiator temperature* Load resistance (per tube) Effective load resistance, plate -to -plate Maximum signal driving power, approximate Maximum signal power output, approximate § Unless otherwise specified, values are for two tubes. Typical Operation § 6000 2.5 0 1200 0.5 140 1050 4200 415 8 Maximum Ratings 8000 12500 volts 2.3 A 2 .0 amperes 12 kilowatts 4 kilowatts 180 centigrade -60 volts 1000 volts 0.5 ampere 158 centigrade 1700 ohms 6800 ohms 400 watts 10.5 kilowatts CLASS B RADIO -FREQUENCY POWER AMPLIFIER -TELEPHONY Carrier conditions per tube for use with a max modulation factor of 1.0 D -c plate voltage D -c plate current Plate input Plate dissipation Radiator temperature* D -c grid voltaget Peak r -f grid voltage Driving power, approximatev Power output, approximate 6000 8000 12500 volts 0.67 0.71 1.0 ampere 6 kilowatts 4 kilowatts 140 160 180 centigrade 0 -40 volts 300 350 volts 65 25 watts 1 1.7 kilowatts CLASS C PLATE -MODULATED RADIO -FREQUENCY POWER AMPLIFIER -TELEPHONY Carrier conditions per tube for use with a max modulation factor of 1.0 D -c plate voltage D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation Radiator temperature* Peak r -f grid voltage D -c grid current, approximate Driving power, approximate Power output, approximate 6000 8000 -1000 -1300 0.77 0.75 90 1675 0.19 310 3.5 90 2000 0.18 350 5 10000 volts -3000 volts 1.0 ampere 0.25 ampere 10 kilowatts 2.5 kilowatts 180 centigrade volts ampere watts kilowatts CLASS C RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR -TELEGRAPHY Key -down conditions per tube without modulation ¶ D -c plate voltage D -c grid voltage . D -c plate current D -c grid current Plate input Plate dissipation Radiator temperature* Peak r -f grid voltage D -c grid current, approximate Driving power, approximate Power output approximate 8000 10000 -1000 -1300 1.1 1.4 120 1800 0.18 320 6.5 160 2300 0.18 400 10 12500 volts -3000 volts 2.0 amperes 0.25 ampere 18 kilowatts 4 kilowatts 180 centigrade volts ampere watts kilowatts MAXIMUM PLATE DISSIPATION VS AIR FLOW RATE GL -892-R ETI-247 PAGE 3 8-46 Air flow rate Maximum plate dissipation Class B, a -f Class B, r -f Class C, telephony Class C, telegraphy 400 450 500 600 700 cu ft per min 3700 4000 4300 4850 5300 watts 3700 4000 4300 4850 5300 watts 2300 2500 2700 3000 3300 watts 3700 4000 4300 4850 5300 watts * Measured in thermometer well. f With a -c filament excitation. With d -c filament excitation. A Averaged over any audio -frequency cycle. 7F At crest of a -f cycle with modulation factor of 1.0. ¶ Modulation, essentially negative, may be used if the positive peak of the audio -frequency envelope does not exceed 115 per cent of the carrier condition. APPLICATION NOTES GL -892-R can be operated at maximum ratings in all classes of service at frequencies as high as 1.6 megacycles. The tube may be operated at higher frequencies provided the maximum values of plate voltage and power input are reduced as the frequency is raised. (Other maximum ratings are the same as shown under MAXIMUM RAT - INGS and TYPICAL OPERATING CONDITIONS.) The tabulation below shows the highest percentage of maximum plate voltage and power input that can be used up to 20 me for the various classes of service. Special attention should be given to adequate ventilation of the bulb at these frequencies. Frequency 1.6 7.5 Maximum permissible percentage of maximum rated plate voltage and plate input Class B{ telephony telephony, plate modulated Class C, telegraphy 100 85 100 75 20 megacycles 76 per cent 50 per cent 7.0 00 6 .tt.i 0O LL.1 cr X0 ui x6 a2. z 00 4.( zI- 000 cc ni2c3 ,(30 0 x200 a. +100 EC* 0 -100 -200 0 5000 10 000 15 00 0 20 000 25 000 PLATE VOLTAGE I N VOLTS K-8639397 GL -892-R AVERAGE PLATE CHARACTERISTICS (Ef = 22 VOLTS A -C) 9-28-44 GL -892-R En -247 PAGE 4 8-46 2.5 2.0 W "- itiG Eei 800 1.5 x 0 10 x kS0, 06100 K-8639396 .5 X X C30 ° 0 *0/ I I kI k IL \ . ' .* . . " \ . .. 0 2000 4000 6000 PLATE VOLTAGE IN VOLTS GL -892-R GRID -CURRENT CHARACTERISTICS (E, = 22 VOLTS A -C) 9-28-44 GL -892-R ETI-247 PAGE 5 8-46 1 1 111.4 I.0 / 11 / / / / I,i \ ,7 %./ 16 GRID AMPERES +800 / / i "Ir\h'4\3Kv.2 k9.2 I I 1 1 II /I , t// , . / 1// I +400 I. / / / / 7 6 4'.---------------............................. 5 4 - - - / -- -- -.0 8 0 2 I 0.5 0.2 -40 0 PLATE AMPERES K-8639395 0 4000 8000 12000 16000 20000 PLATE VOLTAGE IN VOLTS GL -892-R CONSTANT CURRENT PLATE AND GRID CHARACTERISTICS (E1=22 VOLTS A -C) 9-28-44 GL -892-R ETI-247 PAGE 6 8-46 -10 8 6 4 3 2 (r) -_wcc I 0 -0_0.8 2 -<0.6 0.4 -go.' -0cn.08 -w.06 -.04 -.03 .02 K-9033591 12 14 16 18 20 22 FILAMENT VOLTAGE IN VOLTS GL -892 AVERAGE FILAMENT EMISSION CHARACTERISTIC 1.9-45 GL -892-R AVERAGE FILAMENT CHARACTERISTICS GL -892-R En -247 PAGE 7 8-46 64 22' 62 -4( 60 cc cc 58 L'S 5G LARGE TERMINAL OF BASE COLD RESISTANCE OF FILAMENT = 0.032 OHM FILAMENT SUPPLY 54 I8 20 22 24 FILAMENT VOLTAGE IN VOLTS K-8639398 26 11-2-44 WITH D -C EXCITATION BASE TERMINALS WITH SINGLE-PHASE A -C EXCITATION BASE TERMINALS WITH TWO-PHASE A -C EXCITATION BASE TERMINALS LARGE TERMINAL V=22 VOLTS A=60 AMPERES K-9033547 LARGE TERMINAL LARGE TERMINAL V=22 VOLTS A = 60 AMPERES V=11 VOLTS A=60 AMPERES GL -892-R FILAMENT CONNECTIONS 12-1-44 GL -892-R ETI-247 PAGE 8 8-46 FILAMENT TERMINAL 120°±20° 6" R. MAX. NOTE: TWO THERMOMETER WELLS IN RADIATOR 5" D1A.'X tr DEEP 16 2 GRID TERMINAL 4371 .007" DIA. 416"M 3232 BASE 4371.8:2" ILI 2E MAX. DIA. FILAMENT CENTER -TAP TERM I20°± 20° 007 DIA . -- I 4"M A X. f .438"MIN. 3"DIA. If -1* MAX' I" MIN. 8-46 (7M) Filing No. 8850 MONOGRAM -- 77MIN. 8 DIA. 7 1"4. I DIA 2 16 ANODE d'±f 54±q OUTLINE GL -892-R PLIOTRON NOTE: Mounting position vertical, anode down. K-6966980 11-5-4.5 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL -892-R DESCRIPTION AND RATING ETI-247B PAGE 1 12-50 PLIOTRON DESCRIPTION The 892-R is a three -electrode tube for use as a radio -frequency power amplifier, oscillator, and Class B modulator. The construction of the filament permits operation from two-phase or single-phase alternating current, as well as from direct current, for all classes of service. The plate of the 892-R is air-cooled by means of a special radiator which is fitted to the tube by the manufacturer. The plate is capable of dissipating 2 to 5 kilowatts of power, depending on the service in which the tube is used. The GL -892-R pliotron can be operated at maximum ratings at frequencies as high as 1.6 megacycles and at frequencies up to 20 megacycles at reduced ratings. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Minimum Bogey Maximum Filament voltage 22 23 volts Filament current at bogey voltage 57 60 62 amperes Filament starting current 120 amperes Filament cold resistance 0.031 ohms Amplification factor, E0= -50 V, Ib =0.42 A 42.5 50.0 57.5 Interelectrode capacitances Grid -plate Grid -filament Plate -filament 28 31 34 uuf 15 20 24 uuf 1.0 2.0 3.0 uuf 1Completely revised. GENERAL ELECTRIC Supersedes ETI-247A dated 6-47 GL -892-R ETI.247B PAGE 2 12-50 TECHNICAL INFORMATION (CONT'D) Mechanical Data Mounting position-vertical, anode down Type of cooling-forced-air Maximum incoming air temperature Required air flow on anode Plate dissipation-watts Air flow-cubic feet per minute Pressure-inches water Maximum glass temperature Net weight, approximate 45 C 2400 3200 4000 300 380 450 0.20 0.36 0.5 150 C 46 pounds MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS AUDIO -FREQUENCY POWER AMPLIFIER AND MODULATOR -CLASS B Maximum Ratings, Absolute Values D -c plate voltage Maximum signal d -c plate current* Maximum signal plate input* Plate dissipation* Temperature of air cooler Typical Operation Unless otherwise specified, values are for two tubes D -c plate voltage D -c grid voltage Peak a -f grid -to -grid voltage Zero signal d -c plate current Maximum signal d -c plate current Effective load resistance, plate to plate Maximum signal driving power, approximate Maximum signal power output, approximate 12,500 max volts 2.0 max amperes 12,000 max watts 4,000 max watts 180 max C 6,000 1,000 0.5 2.6 4,200 135 8,000 8,000 volts -60 volts 1,000 volts 0.5 amperes 2.3 amperes 6,800 ohms 84 watts 10,500 watts RADIO -FREQUENCY POWER AMPLIFIER -CLASS B Carrier conditions per tube for use with a maximum modulation factor of 1.0 Maximum Ratings, Absolute Values D -c plate voltage D -c plate current Plate input Plate dissipation Temperature of air cooler Typical Operation D -c plate voltage D -c grid voltage Peak r -f grid voltage D -c plate current D -c grid current, approximate Driving power, approximate// Power output, approximate 12,500 max volts 1.0 max ampere 6,000 max watts 4,000 max watts 180 max C 6,000 230 0.64 0.03 77 1,000 8,000 volts -60 volts 320 volts 0.67 ampere 0.04 ampere 150 watts 1,800 watts PLATE -MODULATED RADIO -FREQUENCY POWER AMPLIFIER -CLASS C TELEPHONY Carrier conditions per tube for use with a maximum modulation factor of 7.0 Maximum Ratings, Absolute Values D -c plate voltage D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation Temperature of air cooler 10,000 max volts -3,000 max volts 1.0 max ampere 0.3 max ampere 10,000 max watts 2,500 max watts 180 max C Typical Operation D -c plate voltage D -c grid voltage Peak r -f grid voltage D -c plate current D -c grid current, approximate Driving power, approximate Power output, approximate 6,000 -1,000 1,650 0.83 0.28 420 3,500 8,000 volts -1,300 volts 1,950 volts 0.82 amperes 0.24 amperes 430 watts 5,000 watts TECHNICAL OPERATION (CONT'D) GL -892-R ETI-247B PAGE 3 12-50 RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR-CLASS C TELEGRAPHY Key -down conditions per tube without amplitude modulationli Maximum Ratings, Absolute Values D -c plate voltage 12,500 max volts D -c plate current..2.0 max ampere D -c grid voltage. -3,000 max volts D -c grid current 0.4 max ampere Plate input 18,000 max watts Plate dissipation 4,000 max watts Temperature of air cooler 180 max C Typical Operation D -c plate voltage D -c grid voltage Peak r -f grid voltage D -c plate current D -c grid current, approximate Driving power, approximate Power output, approximate 8,000 -1,000 1,700 1.17 0.22 330 6,500 10,000 volts -1,300 volts 2,150 volts 1.40 amperes 0.24 amperes 495 watts 10,000 watts * Averaged over any cycle of sine -wave form. //At crest of audio -frequency cycle with modulation factor of 1.0. Modulation essentially negative may be used if the positive peak of the envelope does not exceed 115 percent of the carrier conditions. Maximum ratings apply up to 1.16 megacycles. The tube may be operated at higher frequencies provided the maximum values of plate voltage and power input are reduced according to the tabulation below (other maximum ratings are the same as shown above). Special attention should be given to adequate ventilation of the bulb at these frequencies. Frequency 16 7.5 20.0 megacycles Percentage of Maximum Rated Plate Voltage and Plate Input Class B Class C plate modulated Class C unmodulated 100 85 100 75 100 75 76 percent 50 percent 50 percent GL 892-R AVERAGE PLATE CHARACTERISTICS Ef =22 VOLTS A -C) mom. mum imm gem Elm: nAmm ...Km III. Immiammil ill immil 1 1 .MEMBIROYANDMINOW IMMImAXIMMEMO 1111=4:: 1 1 :NM mWrillir ,,.112 MOM WIiMmleIEuuWrimmNn.orA MM. MOD:. rIMPA MMMMmMmlrIoMoMkR,cro., :EMI IMMIIIIMMWA MMMMMMM ::::::MEMMTat M num. MEMEMEMMR MMMMMM MI 11 OAPS. EMI C MEM NMI rile! !MIME: MONI MMMUEMIMMFAA 1M1I11E1N1MIVIMMEN1 la ISIMM! MINNA NOW:. MMOIMMWA U.. I 1 '. :pr.. IIIIMUMF M MEI EMI M A . II! MM EMI A , 1:V:: 1 MMMMMM :MMr. API.... MIMEO IIIIII nuammAmpi IISIIINFAIIMM ME :EMImow.. . .11111-g % ImoMMm mmmmunmirTmmi 1 !dil 1 : IMO MMWIMMIKE P'. UNFIIMUm MMMMM ,AMM ..,m17411 mip....mmml 1 I NVIIN; !". 1 1 1 11 IMMEm : alimmumm mmilm mum 1 1 1 1 1 1 MO MM !Mil 1..1..1,."'".11111.11111111...n..!...ei.11 1 ...::::. !::II6E1T11:111:1..1.1.1.:11:1111111111N1M1I1I1I1L1I1I11I1M1MMEMMIMMEMI 'a' WEIMMEMEMEMEKMEMPM gli mim !..11MMEMMI 1 M immiwz M RA MMMMMM wommr-dipmmommim m ..._- ms .r.dilimplumum 211P..1.mi mm ,-.summ.mommommummainim : P.' mowMi - gammPT.I. ...MAMA 1":". ow1 .- -- !ft . 11...... -.mil 0 II.1- i _.pgrewT1-i M 111 11 Immo: 1 5,-!:':: M G..1111=iii 1111ww. r 0 so 1 MMMMMMMMMMMMMMMMMMMMMMMM ... ..maill11111111111111119""-;; lowww.-.a11111m1.1 ,..". .r..--.. ...-n-1-.-. ..... .1.17.7.-. ..f.... I 0 5000 10000 15000 20000 PLATE VOLTAGE IN VOLTS K -69087-72A108 1Revised GL -892-R ETI.2478 PAGE 4 12-50 GL -892-R AVERAGE GRID -PLATE TRANSFER CHARACTERISTIC E, =22 VOLTS A -C, SINGLE-PHASE EXCITATION 4.5 MERMEN PMMEIMMEEMEMEMNII ME EMEMEIMEMENE MEMESEEMMEMEME NEEMENNEEME 1111111 E II EMINIAMEMEMMEMMIEMMEMEME MEMEMUMOVEM EMMIIMMIRMSEM M HEMMEN MEM MEMMEMOMEMMEEN AIMMEMEMAIMEMEMEM EMMEIMMEMMEEME EMMEN EMEMEMIMOMEMEMMEMEMEMEME 4.0 MMMUEETMIRIENMIEIIMMMUEBMHEEEIMMMEEIMMEEFMEWEEMrSIMENEMIMMEOEEEMMSBEEEMEIEMMMEMMMEIIMNUMEMEMMMEEEMMEEMMEEEMMMMEEENRMINMNMEIEMEEMIMEMEEEEMMMMEEEMNMEWMNMEEMEEMMMMMEMEEMMEMMMMEEMMEMEMMMEMMMEEMMMEEEMMM MEMMEMEAMIIEMME MEM MEM EMEEMMEMOMMEMMEMEEMEMENEMEMEMUNEMEMEEMENENE 3.5 I ME IMEMI,EVRIMMEIMMEME MEINEMEMEMENIMEMEMEMEMMEMEMEMIEMEMOMMEMEMEMEMEMEM MEME 3.0 6 MA EMEMEMENEMEMMEMERMENAMEMEMEMEMEMEM MMMMM MEMEMEMMEMMEEM MEM 2.5 Iii iniiiIILlIIiik muniumuummums Lim sum mommummom 2.0 ME minimmummummummommommumm 1.5 I.0 0.5 0 k =momIIIINIINIIIIIIIIIIIIIIIIIIIIIIIIH Emmowiltimpok mommmimmammEL MEM EIMEMMEM k 1 k 'ma0 ek gmmummumummEmminummommommom mOMMIA4MWEEMEEMNIMEMEmmEIM MEMEMEMISEMEMENMEMMEMEMEMMMEMEM MILIMEMEMbNEEMEMMEREMEMEM MEMEHIMMEMEMEMEMMEMEMMEMMEMEMEM 1 1 .1 II IIIIIIII mMM1MMuE6iiEmE1nlOMm1ilWAi1nM.qgE4uiIE1mmiEL1mg7.I1i4MMlL1EmNEMoEMEAmEINMVuIAAlOEIaMMMwMI0MM1mI11I1IwCAEmEVMhMMEEoEMENoNIMEOIVlWiIlEIWIlEJMILifOwNEfWeAMRilMMPENI1EEE1RMWM1EAE.E1EIM1NMM1EEM1EMMM1NEE.EMEMMMIEMMEMMEEMEMMMMUIMEEMMRREEMEENMMEENMEMMUMEMMMSUEUMMmMMEMMMUMEIMMMNEMMEMUMXEMEUMMMMEMEMMEMEfMMMEfMMM"EMI.NMEE"MMME1EMEM1EEM1MME:EE MMUNINEEMLEENIMAI MEM M 11111014MER1 4 ME 4EMAL,IPX141117S1W1I4E06M1EEMMMEEEMEEEMMEMMMEMMMEEMMMEEMMEMMEMMEMMEMEMMMEEMMMEEMMEEMMEEMMEEMNE MmEmMiI!m.o11 l 11m EWWUAMEMOWAMMPEnMINmEEsMmMiEvMoEmNmEoMOmMmMuEMmEoMmEmMEmMmEuMmEmMuEmMEuMmEmMeEmMpElM EMMA MEWmi 111WI1EFE4L1I, M144111141bME4ELNEEMENNOMMEMMEMEMEMEMEMEMEMEMEMEME 1I1n1s1pirrhmbi.g .4.k.4' k b. AIMIAMFIRWiRELMEMEEEMLEMEVEME M EMMEMEMEMMEEMEMEMEMEMEME 111111.1911 MAE `66MEMMIOUVEWIEMMEIIMMWIA MM W MM EMEMMUMEMOMEMEMEMMENNEEMEMEM MAW 1 1 pp1 m 4 sr, -4111 --4. i,Rlmmuw.1imumgimem1mulmoug emmommummommimmummommen III mu _m-miq!_.i,kmhIg.z.041,.E4-bsu2gmhmmNmmsomohiwmtiommmomhiulimmmmmeoL4u1mmohih.gmu1iilwrlmmoaommmumomimmlmulmmummmuummmmomommummmuommmmomumommmmmooommmmmm AMER - 1115pet,t mt% Ek. b. b FM1I.M-E EMEME 1m1g:mg',°.4.4.".0_- 'aqwk-..".V..I..I_MiAI.."11"1W1E.E11N1M1111111111111111,111111111 Amm.---....I_WiAdAMMAINEMelem..7.1 WwaMEMEMEMEMEMENEMEMEMEMMEMEMENEMEEMEME IIIIIIuhIIIIuIIHhIIIIIIIIIIUIIIHIIII MIME.... =mom II ME EMU MEW EMMIEMIIIMMEMEMEMMEMEMMEMEMEMEEMMEMEMEMEMEMEM MMMMM MEM= um ma mmaimummummum MMMMM mommommommummommummomm mommomm M- mg mummommos MEEMMEMEMMEIMMEMEMEMEMMEMEMEMENEMEMEMEME MENEMEME EMU MI ME MEMEMEEMEMEMEMEMMEEMMENENEMEMMEMEMEMORUMMEMEMEM MEMEMMEMEMEMEMEMUMMERIMMEMEMEM IIIMMOIEMIAMMEMEMEMEMENNINIMMEMEMEMENEMEMEMEM -0.5 0 2000 4000 6000 PLATE VOLTAGE IN VOLTS K -69087-72A442 $1,1 ew drawing. 1-11-51 GL -892-R AVERAGE CONSTANT -CURRENT CHARACTERISTICS Ef =22 VOLTS A -C, SINGLE-PHASE EXCITATION GL -892-R ETI.247B PAGE 5 12-50 K -69087-72A443 New drawing. 12000 4000 6000 8000 PLATE VOLTAGE 1 N VOLTS 12 000 14 000 GL -892-R ETI-24713 PAGE 6 I2-50 GL -892-R AVERAGE FILAMENT EMISSION CHARACTERISTIC MEIMMMMM 10 8 6 zt 5-e 4 3 INI NI MMMMM 111111111IM El MMM =MINN= MIMIMI NI 2 MI MMEIIMMII IN MI = -e 23 Z11 0 1 0.8 NENIMMEMIIIIMMEME111111111MMENIMMIMEMINIIIIMII-I4IMMI=AMIMMI=IIIIMIMEMIUMIIIMMIMENIMINEEMINIIMIHNIIMINIMEMI 0.6 rrs = E 23 0.4 0.3 0 . 2 EC E= = = == = == 0.1 mmimnimmnmmonmniimmmmmummmmimmmmimimmmmummmeoummnmmummmmunmmmmunmnmmimmnmmOpm .08 .06 .04 .03 .02 .01 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii 12 14 16 18 20 FILAMENT VOLTAGE IN VOLTS K -69087-72A448 New drawing. 22 24 1-11-51 GL -892-R AVERAGE FILAMENT CHARACTERISTICS 66 -7- GL -892-R ETI-247B PAGE 7 12-50 64 62 LARGE TERMI- COLD RESISTANCE NAL OF BASE OF FILAMENT =- 0.031 OHM 60 58 FILAMENT SUPPLY 56 54 8 K-69087-72 A44 1 New drawing. WITH D -C EXCITATION 20 22 24 26 FILAMENT VOLTAGE IN VOLTS GL -892-R FILAMENT CONNECTIONS WITH SINGLE-PHASE A -C EXCITATION BASE TERMINALS BASE TERMINALS WITH TWO-PHASE A -C EXCITATION BASE TERMINALS LARGE W TERMINAL V = 22 VOLTS A = 60 AMPERES K-9033547 LARGE TERMINAL V = 22 VOLTS A = 60 AMPERES LARGE TERMINAL V =11 VOLTS A = 60 AMPERES 12-1-44 GL -892-R ETI-24713 PAGE 8 1 2-50 BASE NO. JI-I fr*OUTLINE GL -892-R PLIOTRON FILAMENT TERMINALS 120° NOMINAL 6° R. MAX. RADIATOR HANDLES 90° NOMINAL FROM GRID ARM GRID TERMINAL 437-.007 DIA. Te MIN. BASE NO. A3-55 16 R' MIN Dv FILAMENT CENTER -TAP TERM 120°NOMINAL d--750011±.(017 . MAX. A 22 .4378?;" MAX. DIA. 3"DIA. u± 4 Is MAX.' '14. !I 31-3. 1 12-50 (11M) IN. 78 DIA. r I"DIA. 7-2 ± -16 ANODE''\ K-6966980 + Revised. 11-11-48 Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL -893A -R DESCRIPTION AND RATING ETI-248A PAGE 1 8-50 PLIOTRON DESCRIPTION The GL -893A -R is a three -electrode tube de - forced -air cooled and is capable of dissipating 20 signed for use as a radio -frequency amplifier, kilowatts. The cathode is a pure -tungsten filament. oscillator, or class B modulator. The anode is Maximum ratings apply up to 5 megacycles. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Minimum Filament voltage (single-phase excitation)*§ . Filament current at bogey voltage (Single-phase excitation)*§ 175 Filament starting current (Single-phase excitation) Filament cold resistance (Single-phase excitation) Amplification factor, II, = 1.0 amp, E, = -100 v . 28 Interelectrode capacitances Grid -plate 29.8 Grid -filament 39.5 Plate -filament 2.6 Technical information completely revised. Bogey 20 183 .0093 34.5 34 48 3.5 Maximum 21 volts 190 amperes 275 amperes ... ohm 41 38.8 uuf 56.5 uuf 4.4 uuf GENERAL ELECTRIC Supersedes ETI-248 dated 8-46 GL -893A -R ETI-248A PAGE 2 8-50 TECHNICAL INFORMATION (CONT'D) Mechanical Data Mounting position Type of cooling Maximum incoming air temperature Required air flow on anode Plate dissipation-percent of rating Air flow-cubic feet per minute Static pressure-inches water Required air flow to stem * Maximum glass temperature Net weight, approximate 100 1800 1.05 80 1250 0.56 60 1000 0.38 vertical forced -air 45 C 2 CFM t 150 C 230 pounds MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS AUDIO -FREQUENCY POWER AMPLIFIER AND MODULATOR -CLASS B Maximum ratings, absolute values D -c plate voltage Maximum signal d -c plate current/ Maximum signal plate input/ Plate dissipation Typical operation Unless otherwise specified, values are for 2 tubes D -c plate voltage D -c grid voltage Peak a -f grid -to -grid voltage Zero signal d -c plate current Maximum signal d -c plate current Effective load resistance, plate to plate Maximum signal driving power, approximate Maximum signal power output, approximate CCSt 20,000 max volts 4 0 max amperes 60 max kilowatts 20 max kilowatts 12,000 -260 1480 0.8 7.0 4000 220 52 CCSt 15,000 -350 1560 0.8 6.0 6000 190 60 18,000 volts -450 volts 1720 volts 0.8 amperes 5.5 amperes 8000 ohms 140 watts kilowatts RADIO -FREQUENCY POWER AMPLIFIER -CLASS B Carrier conditions per tube for use with a maximum modulation factor:of 1.0 Maximum ratings, absolute values D -c plate voltage D -c plate current Plate input Plate dissipation Typical operation D -c plate voltage D -c grid voltage Peak r -f grid voltage D -c plate current D -c grid current, approximate Driving power, approximates Power output, approximate PLATE -MODULATED RADIO -FREQUENCY POWER AMPLIFIER -CLASS Carrier conditions per tube for use with a maximum modulation factor of 1.0 Maximum ratings, absolute values D -c plate voltage D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation Typical operation D -c plate voltage D -c grid voltage Peak r -f grid voltage D -c plate current D -c grid current, approximate Driving power, approximate Power output, approximate 12,000 -250 350 1.5 35 130 6 CCSt70 20,000 max volts 2 0 max amperes 32 max kilowatts 20 max kilowatts CCSt 15,000 15,000 volts -340 -340 volts 395 450 volts 1.5 2.0 amperes 30 50 milliamperes 150 200 watts 7.5 10 kilowatts C TELEPHONY 10,000 -800 1200 1.5 0.10 120 11 CCSt. 12,000 max volts -3000 max volts 2.0 max amperes 0.4 max amperes 24 max kilowatts 12 max kilowatts CCS t 10,000 12,000 volts -800 -1000 volts 1280 1500 volts 2.0 2.0 amperes 0.16 0.14 amperes 210 210 watts 15 18 kilowatts TECHNICAL INFORMATION (CONT'D) GL -893A -R ETI-248A PAGE 3 8-50 RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR -CLASS C TELEGRAPHY Key -down conditions per tube without amplitude modulation Maximum ratings, absolute values D -c plate voltage D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation Typical operation D -c plate voltage D -c grid voltage Peak r -f grid voltage D -c plate current D -c grid current, approximate Driving power, approximate Power output approximate 12,000 -800 1430 3.5 0.26 360 30 CCSt 20,000 max volts -3000 max volts 4 0 max amperes 0.4 max amperes 70 max kilowatts 20 max kilowatts CCSt 15,000 18,000 volts -900 -1000 volts 1520 1630 volts 3.6 3.6 amperes 0.25 0.21 amperes 370 340 watts 40 50 kilowatts *Air flow to be directed into stem through tubing in center of base. The flow stem -cooling air must continue for 5 minutes after removal of filament and plate power. §See drawing Filament Connections and Excitation Circuits, K-8639686. tCCS = Continuous Commercial Service. Averaged over any audio -frequency cycle of sine -wave form. irAt crest of audio -frequency cycle with modulation factor of 1.0. ¶Modulation essentially negative may be used if the positive peak of the envelope does not exceed 115 percent of the carrier conditions. Maximum ratings apply up to 5 megacycles. The tube may be tabulation below (other maximum ratings are the same as operated at higher frequencies provided the maximum values shown above). Special attention should be given to adequate of plate voltage and power input are reduced according to the ventilation of the bulb at these frequencies. Frequency Percentage of maximum rated plate Voltage and plate input Class B r -f Class C plate modulated Class C unmodulated Percentage of maximum rated plate voltage Percentage of maximum rated plate input 5 12 25 megacycles 100 86 74 percent 100 81 65 percent 100 81 65 percent 100 75 50 percent 64-SZ-17 01 S110A011>I NI 39V110A 31V1d 8 9 paspiAJ 88DaL-L8069-N 0 immwft1 6V-LZ-1, SZ I irs --" ESN NO NE LEM. MMMMM sum MIMI MMMMM MEI NESSE MMMMMM ":11 ms 1 71:'" . 11.11111 :ITFsm°112"Imi11111111111111111111111111:: tr.:!!" u b. WM... P0 omia. cAmmt...wans ti0041 EMMAENA rcA - mminhcquommilibr.mommil IMWEIMESIS6....WE:IENNNIMSEPAM -msmcmmmm MMMMM c ZNEA. ,Imobcoguig -gam hME CEN MMM ONEMEIN MN. ISSN 1. SIMON OE:MMSEIMM MMUUMM. EMMEN ....'IL...... 0000. ."!11: 11' a MM 0 2 0 'MI MMMMMMMMMMMM A M SERE ARMEN i WNW ONES IN. V ON mum z ii.. -c) AEI ENVEUE.M rn IMIMMI NNEEEMNOINNEESMSIMBUMIESREEIENENgl In M.1111 ESZEMME a. mEMOSSINSEEN NI CL D -V S110A 0Z=3 DI1S12131DV21VHD 213ASNV21.1. 3.1.V1d-GINO 21-V£68-10 S.1.10A011A NI 30V110A 31Vld OZ. SI 01 b.. 9 pOS!AOJBUVADJUNI 66VU-L8069-N 0 GL -893A -R AVERAGE FILAMENT CHARACTERISTIC SINGLE-PHASE CONNECTION COLD RESISTANCE=0.0093 OHM GL -893A -R ETI-248A PAGE 5 8-50 K -69087-72A287 'Drawing revised FILAMENT BASE TERMINALS 5 IO 15 20 25 30 35 FILAMENT VOLTAGE IN VOLTS- SI NGLE- PHASE GL -893A -R FILAMENT CONNECTIONS FILAMENT BASE TERMINALS 4-25-49 V= 17.3 VOLTS A= 122 AMPERES THREE-PHASE A -C FILAMENT EXCITATION FILAMENT BASE TERMINALS V=20 VOLTS A=I83 AMPERES SINGLE-PHASE A -C FILAMENT EXCITATION FILAMENT BASE TERMINALS K-8639686 VI = OVOLTS V2= OVOLTS A =61 AMPERES SIX -PHASE A -C FILAMENT EXCITATION V = 20 VOLTS A=183 AMPERES 0-C FILAMENT EXCITATION NOTE: TERMINALS MUST BE CONNECTED IN CORRECT PHASE RELATION AS SHOWN 4-27.49 GL -893A -R ETI -248A PAGE 6 8-50 GL -893A- R AVERAGE FILAMENT EMISSION CHARACTERISTIC SINGLE-PHASE FILAMENT CONNECTION r J.474tepo,.. -, IT 1111k11:1L11r_Ii_il.i_g_iiii-1111111.1i.1.N.Iff.i-ll.i.rmaun*.......i.p:rhon... .gm -r. pi...v-Ans - I. 30 .. 1 MIMI nirnmi'l .. r !IN HlimIMo in N DINIMISI .713Brit: aii. 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'i 1211.4211111t ""V mnritiallifirigrapprohuh intim OVIIMIEN"A :::: MUM :..1L.S1,d,mMIuurlS?wr.i:IaIw;.nl"e7nn7smu,opmi:ojulpion&ollrrhdlBmpEiaai.em.rlndmE"m:eiI.Mln6mio4gomm1mu.pm.ro.Ml1e.um.Slo.1m.I1lS111.I1R. mSmIwMd-iPilullOsimrlS.lmPimiiHmimiOiilMiIiiPiiiiImIgIui"ilVii4i"t1ii1Il1i 1 IMIIN .......riril MI MU mmmmm riig A a AllIw al AOMAMMI4Mir NO10.1.14.11411.41., moan Imummilliiiiii I EORMArn nmmorI igirpool AIMOMMOM6U mmmmm IS Ismammumigmmaspgom IIIII UnESIUMN410.4.1J AMOMI4o. I.n.in.nMliOniM. In 0 1.21.11,normAAWAUSIIr AMOA.41111/0.11. mormomi Jimmamiuemtimmraw, imm i : I VAIIIIVII il u NAM X r4 IA AlliMI, noising OM4 ,N Mina u Amman, BMEOCUM mm a GL -893A -R EM248A PAGE 8 8-50 16-4 -4 DIA. 111GL-893A-12 OUTLINE - t 16i 16 DIA. THERMOMETER WELLS 5" D1A.X Ig DEER 1.500"± -035R.- MONOGRAM 2.0001 .±.035" 1.50-±.035" 3.3 45± .035 n 5- FILAMENT .625 DIA-. TERMINALS 6- -83-"STUDS `Atillkre BASE 6628A 09 32 "-43.2ir DIA. 6.000-±D.1I3A0." .250" 11:° 35" 3" I " ±16 liP119 DIA. 1- GRID BASE 3935 7 " I" 261F ±17§ MEM 7" I 123"±16 0 Irsime :, 01' I. I 187 8-50 (11M) 6"-±g ANODE K-6966982 Drawing revised Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 1-31-47 GL -889R -A DESCRIPTION AND RATING ETI-249A PAGE 1 8-50 PLIOTRON DESCRIPTION The GL -889R -A is a three -electrode power tube designed for use as a radio -frequency amplifier, oscillator, or Class B modulator. The plate is fitted with a special radiator and cooling is obtained by forced air. The design of the mount and terminal connections minimizes lead inductance and makes the tube particularly suitable for high -frequency applications. The GL -889R -A can be operated at maximum ratings at frequencies as high as 40 mega- cycles and up to 100 megacycles at reduced ratings. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Minimum Bogey Maximum Filament voltage 11.0 11.5 volts Filament current at bogey voltage 110 120 128 amperes Filament starting current Filament cold resistance 180 amperes 0.008 - ohm Amplification factor, at Eb =1.0 amp. E, = -100 volts 17 21 25 Interelectrode capacitance Grid -plate 15.8 18.5 21.2 micromicrofarads Grid -filament 19.2 23.3 27.4 micromicrofarads Plate -filament Completely revised. 2.0 3.0 4.0 micromicrofarads GENERAL ELECTRIC Supersedes ETI-249 dated 8-46 GL -889R -A ETI-249A PAGE 2 e-50 TECHNICAL INFORMATION (CONT'D) Mechanical Data Mounting position Type of cooling Maximum incoming air temperature vertical, anode down forced air 45 centigrade Required air flow on anode Plate dissipation-kilowatts Air flow-cubic feet per minute Static pressure-inches water 5.0 4.0 3.0 500 390 300 0.7 0.5 0.35 Required air flow to bulb* Maximum glass temperature Net weight, approximate 15 cubic feet per minute 150 centigrade 35 pounds *Air to be directed at the top of tube from a 3 -inch -diameter nozzle. Cooling air may be obtained by directing the required air flow at the top of the glass envelope through a 3 -inch -diameter nozzle, or by deflecting air at the top of the bulb from the radiator -cooling -air stream. MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS AUDIO -FREQUENCY POWER AMPLIFIER AND MODULATOR -CLASS B Maximum ratings, absolute values D -c plate voltage Maximum signal d -c plate currents Maximum signal plate inputs Plate dissipationt Typical operation Unless otherwise specified, values are for two tubes D -c plate voltage D -c grid voltage Peak a -f grid -to -grid voltage Zero signal d -c plate current Maximum signal d -c plate current Effective load resistance, plate -to -plate Maximum signal driving power, approximate Maximum signal power output, approximate tAveraged over any audio -frequency cycle of sine -wave form. 5000 -180 1460 0.4 3.2 2520 170 8.8 CCS** 8500 maximum volts 2 maximum amperes 12 maximum kilowatts 5 maximum kilowatts CCS* 6000 -230 1680 0.4 3.6 3680 180 12 7500 volts -300 volts 1700 volts 0.4 amperes 3.2 amperes 5000 ohms 150 watts 15 kilowatts RADIO -FREQUENCY POWER AMPLIFIER -CLASS B Carrier conditions per tube for use with a maximum modulation factor of 1.0 Maximum ratings, absolute values D -c plate voltage D -c plate current Plate input Plate dissipation Typical operation D -c plate voltage D -c grid voltage Peak r -f grid voltage D -c plate current D -c grid current, approximate Driving power, approximatell Power output, approximate 1l At crest of audio -frequency cycle with modulation factor of 1.0. CCS** 8500 maximum volts 1.0 maximum ampere 7 5 maximum kilowatts 5 maximum kilowatts CCS** 6000 7500 volts -250 -300 volts 460 500 volts 0.9 0.9 ampere 0.003 0.005 ampere 95 80 watts 1.5 2 kilowatts PLATE -MODULATED RADIO -FREQUENCY POWER AMPLIFIER -CLASS C TELEPHONY Carrier conditions per tube for use with a maximum modulation factor of 1.0 Maximum ratings, absolute values D -c plate voltage D -c grid voltage D -c plate voltage D -c grid current Plate input Plate dissipation CCS** 6000 maximum volts -1000 maximum volts 1.0 maximum ampere 0 25 maximum ampere 6 maximum kilowatts 3 maximum kilowatts TECHNICAL INFORMATION (CONT'D) Typical operation D -c plate voltage D -c grid voltage Peak r -f grid voltage D -c plate current D -c grid current, approximate Driving power, approximate Power output, approximate CCS** 5000 6000 -800 -900 1300 1420 0.9 1.0 0.12 0.1 155 140 2.75 4 RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR -CLASS C TELEGRAPHY GL -889R -A ETI-249A PAGE 3 8-50 volts volts volts ampere ampere watts kilowatts Key -down conditions per tube without amplitude modulation Maximum ratings, absolute values D -c plate voltage D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation CCS** 8500 maximum volts -1000 maximum volts 2 maximum amperes 0.25 maximum ampere 16 maximum kilowatts 5 maximum kilowatts Typical operation D -c plate voltage D -c grid voltage Peak r -f grid voltage D -c plate current D -c grid current, approximate Driving power, approximate Power output, approximate 5000 -500 1200 1.5 0.19 220 5 CCS** 6000 -600 1460 1.8 1.21 290 7 7500 -800 1830 2 0.24 400 10 volts volts volts amperes amperes watts kilowatts Modulation essentially negative may be used if the positive peak of the envelope does not exceed 115 per cent of the carrier conditions. **CCS-Continuous Commercial Service. APPLICATION NOTES *The GL -889R -A can be operated at maximum ratings in all classes of service at frequencies as high as 40 megacycles. The tube may be operated at higher frequencies provided the maximum values of plate voltage and power input are reduced as the frequency is raised. (Other maximum ratings are the same as shown under TECHNICAL INFORMATION.) The tabulation below shows the highest percentage of maximum plate voltage and power input that can be used up to 100 megacycles for the various classes of service. Special attention should be given to adequate ventilation of the bulb at these frequencies. Frequency Percentage of maximum rated plate voltage and plate input Class B Class C plate modulated Class C unmodulated-maximum plate voltage Class C unmodulated-maximum plate input 40 65 100 megacycles 100 85 72 per cent 100 78 60 per cent 100 87 65 per cent 100 73 50 per cent 1\3 0) co 1 Ill IIII 1 111111 ;iiiiiiiW1W19I.1\1I4M1II1II1M1.1O11119111111111111111111111111111111111111111 k II 1 1, IN 1, 1, I. 1. 1, ofterM1111111111111111MINIUMHUMMI !IIIIIIIMIONNIMPINIMININERMI11111 iRummwiseirrn-u-imi1min,mhmuiummimgnmaagsiailiuiiomiiriiwamMmuipnmeimiinimiinieiiuilieimmMmi.oli.ink.km.iR.a..ygm:i.o.li.oSe.l.ocrmmamNpopataIeidLimnaMudm,mulIi 1 11.;1m1u1l-11'''1''''1illa1p1ra1.12111,1=111.01111111.a1lli0alw1r,1r.1..116.01.5611MendratEran inisiestin I1O111UWH1EM11111i1111E1UM1E1II1IIN11111111E"ll1ik1tM14I 111111111111 i summionu mum 111111111.111111111 ammo millummummoin IIIIIIIMMINIGIVIIIMININIIIME 111111111111111111101111 iiiliiimiiiipiiliuiiiiilnloiimihurkiniir1M1E1"1d1io1n1o1w1nTsmINsmEaNfimNmiiiniii RM.. 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MIME. MMMEIMREMMAMWAINMAMMVA X92"' IIMMEMEMMIM MEMMEMMIll MMEMMINIM ilififfir S. IIIIIIII MOMMEMMMEMEMMUMEMMIMMEM EMISS 0 O co 0 GL -889R -A AVERAGE FILAMENT CHARACTERISTICS COLD RESISTANCE=0.008 OHM GL -889R -A ETI.249A PAGE 5 8-50 1200 1000 800 600 400 200 0 -200 400 -600 K-8074637 URevised K-8074634 2 5 10 FILAMENT VOLTAGE IN VOLTS GL -889R -A CHARACTERISTIC 1-9-46 4 6 8 10 PLATE VOLTAGE IN KILOVOLTS 3-5-48 GL -889R -A En -249A PAGE 6 8-50 t.OF THIMBLE SEALS TO BE WITHIN± 15° OF t OF HANDLE FILAMENT TERMINAL - 16 GRID TERMINAL FILAMENT TERMINAL w5 DIA. SCREW 16 - 16 GRID TERMINAL NOTE: THE TUBE BASE SHALL BE CAPABLE OF ENTERING TO A I" 8 4.3711+ .007" - DIA. r's -6 -41 MIN. STRAIGHT SIDE 4 MIN EOM 1. 753 -MIN. DISTANCE OF IN A FLAT PLATE GAUGE HAVING FOUR HOLES 536"±.001DIA. ARRANGED ON A CIRCLE OF 2.125" ± .001" DIA. AT ANGLES OF 90°± 10' STRAIGHT SIDE 31"MAX .DIA. 111"-±i" A 28IV O 1 34:4" 61"±i" 10 8"+-a-1-"DIA ±i!i. DIA. K-6966908 8-50 (1 IM) OUTLINE GL -889R -A PLIOTRON Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 3-16-45 GL -8002-R DESCRIPTION AND RATING ETI-250 PAGE 1 8-46 PLIOTRON DESCRIPTION The GL -8002-R is a three -electrode tube designed for use as a radio -frequency power amplifier at high frequencies. Multiple leads for both the filament and grid connectors minimize the inductance to these electrodes. The anode is fitted with a special hub and cooling is obtained by forced air. Maximum ratings may be used up to a frequency of 120 megacycles and reduced ratings up to 200 megacycles. The GL -8002-R plate is capable of dissipating 750 to 1200 watts. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of Electrodes 3 Electrical Cathode-Filamentary, tungsten Filament voltage Filament current Average characteristics, Eb = 2.4 kilovolts, Ib = 0.5 ampere Grid voltage Ef = 16 volts Amplification factor Direct interelectrode capacitances, approximate Plate to grid Grid to filament Plate to filament Frequency for maximum ratings 16 volts 38 amperes 50 volts 21.5 8 9 micromicrofarads 10.2 micromicrofarads 1 0 micromicrofarads 120 megacycles GENERAL ELECTRIC GL -8002-R ET1-250 PAGE 2 8-46 TECHNICAL INFORMATION (CONT'D) Mechanical Type of cooling forced air Maximum incoming air temperature* 45 centigrade Maximum glass temperature 150 centigrade Air flow to radiator 100 cu ft per min Net weight, approximate pounds Shipping weight, approximate pounds Mounting position vertical, anode down * Ordinarily, deflecting vanes diverting the outgoing air toward the terminal seals provide sufficient cooling MAXIMUM RATINGS CLASS B RADIO -FREQUENCY POWER AMPLIFIER Carrier conditions per tube for use with maximum modulation factor of 1.0 Plate voltage, d -c 3500 volts Plate current, d -c Plate input. 0 6 ampere 1800 watts Plate dissipation 1200 watts CLASS C RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR, PLATE MODULATED Carrier conditions per tube for use with a maximum modulation factor of 1.0 Plate voltage, d -c 2500 volts Grid voltage, d -c -500 volts Plate input..1250 watts Plate current, d -c Grid current, d -c . 0 5 ampere 0 1 ampere Plate dissipation 750 watts CLASS C RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR, TELEGRAPHY Key -down conditions per tube without modulation. Essentially negative modulation may be used if the positive peak of the audio -frequency envelope does not exceed 115 per cent of the carrier conditions. Plate voltage, d -c 3500 volts Grid voltage, d -c -500 volts Plate current, d -c 1 0 ampere Grid current, d -c . 0 1 ampere Plate input. 3000 watts Plate dissipation 1200 watts IIII Ec Eb 4.0 .,aCKE1 00 GRID VOLTAGE IN VOLTS 3.0 If IV 2.0 I IC 0I I.0 0 K-9033820 2 3 5 PLATE VOLTAGE IN KILOVOLTS GL -8002-R AVERAGE PLATE CHARACTERISTICS (E,=16.0 VOLTS A -C) 6 2-24-45 GL -8002-R ETI-250 PAGE 3 8-46 1.6 1.4 1.2 w cwe 1.0 w 0.8 ce ce O 0E 0.6 0.4 0.2 Ems,=Eb 4 0 K-9033821 1 2 3 PLATE VOLTAGE IN KILOVOLTS GL -8002-R TYPICAL GRID -PLATE TRANSFER CHARACTERISTICS (Ef=16.0 VOLTS A -C) 4 2-28-45 GL -8002-R ETI-250 PAGE 4 8-46 1200 1000 800 600 400 200 0 -200 -400 00000000mwmmumMUMMEMEMMIIMMEMEMMEMEmmommommommummmmimmumm IIMEMEMMEMNIMENIIMMEMEMMEM0=0111110MMEMEMEMMEMEMEMMEMEMEMMEM0M0010.01M MEM MMOMMOMIIMMOMMAMMEMEMEMMEMMEMMEMEMMEMMEMMINNOMMIMMEMMUMMEMMEM00000M EVEMEMEMEMMEMEMMEMEMEMMOMMEMEMEMMEMMEMMEMMEMMEMMOMmumm OEM. 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AND I HOLE .178°1: .0 0 I DIA. ARRANGED ON A CIRCLE OF I" -.t.001" DIA. AT ANGLES OF 60°±10 FILAMENT TERMINAL n13"MAX. .15611±.0021 DIA. DIA. .344"±o25" STRAIGHT SIDE .12511.±.o02" DIA. A I -Lie MIN irg MAX. DIA. 5" I" 232±T3- 3"146.-1166 DIA. NAME PLATE 3.415-± 035" DIA K-6912385 8-46 (7M) Filing No, 8850 OUTLINE GL -8002-R PLIOTRON Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 3-4- ±T-6- 10-9-45 GL -895 DESCRIPTION AND RATING ETI-251C PAGE 1 9-51 TRIODE DESCRIPTION The GL -895 is a water-cooled transmitting tube power amplifier, or oscillator. The plate is capable for use as a Class B modulator, radio -frequency of dissipating up to 40 kilowatts. TECHNICAL INFORMATION GENERAL Electrical Data Minimum Bogey Maximum Filament voltage, to neutral* 19 20 volts Filament current, per phase 128 138 146 amperes Filament starting current** Filament cold resistance (per phase to Y 210 amperes center) Amplification factor, E, -100 volts, 0.013 ohm Ib =1 amp 30 37 43 Interelectrode capacitances Grid -plate Grid -filament Plate -filament 32 40 48 uuf 64 80 96 uuf 5 8 11 uuf *When the load conditions are lower than maximum, the tube may usually be operated with reduced filament voltage. **Starting current must never exceed, even momentarily, a value of 210 amperes. GENERAL ELECTRIC Supersedes ETI-2512 dated 4-48 GL -895 ETI-251C PAGE 2 9-51 TECHNICAL INFORMATION (CONT'D) Mechanical Data Mounting position Type of cooling vertical, glass -end up water and forced air*** Water flow on anode Maximum outgoing water temperature Air flow to filament and grid thimbles 20-25 GPM 70 C 5 CFM Maximum glass temperature Net weight, approximate 150 C 25 pounds ***Water flow of 20 to 25 gallons per minute must start before application of any voltage and continue for at least 5 minutes after removal of voltage. Water temperature must not exceed 70 C under any conditions of operation. Air flow of 5 cubic feet per minute directed on filament and grid thimbles is re- quired before application of any voltage, and for 5 minutes after all voltage is switched off, to limit temperature of grid and filament seals to a maximum of 150 C. AUDIO -FREQUENCY POWER AMPLIFIER AND MODULATOR -CLASS B Maximum ratings, absolute values D -c plate voltage Maximum signal d -c plate current t Maximum signal plate input t Plate dissipation t Typical operation Unless otherwise specified, values are for two tubes D -c plate voltage Zero signal d -c plate current Maximum signal d -c plate current D -c grid voltage Peak a -f grid -to -grid voltage Effective load resistance, plate to plate Maximum signal driving power, approximate Maximum signal power output, approximate f Averaged over any audio -frequency cycle of sine -wave form. 12,500 1.50 10.80 -250 1300 2700 700 90,000 17,000 max volts 9 max amperes 100,000 max watts 40,000 max watts 10,000 2.00 10.80 -200 1200 2100 600 70,000 10,000 volts 2.00 amperes 5.10 amperes -200 volts 800 volts 3600 ohms 75 watts 30,000 watts PLATE -MODULATED RADIO -FREQUENCY POWER AMPLIFIER -CLASS C TELEPHONY CARRIER CONDITIONS PER TUBE FOR USE WITH A MAXIMUM MODULATION FACTOR OF 1.0 Maximum ratings, absolute values D -c plate voltage D -c plate current Plate input Plate dissipation D -c grid voltage. D -c grid current Typical operation D -c plate voltage D -c plate current D -c grid voltage Peak r -f grid voltage Driving power, approximate Power output, approximate 12,500 max volts 5 max amperes 62,500 max watts 27,000 max watts -3000 max volts 1.5 max amperes 12,500 2.5 -1400 1810 780 25,000 12,500 4.40 -1500 2080 1700 45,000 10,000 volts 3.35 amperes -1500 volts 2000 volts 1300 watts 25,000 watts RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR -CLASS C TELEGRAPHY KEY -DOWN CONDITIONS PER TUBE WITHOUT MODULATION**** Maximum ratings, absolute values D -c plate voltage 17,000 max volts D -c plate current 9 max amperes Plate input 140,000 max watts Plate dissipation 40,000 max watts D -c grid voltage -3000 max volts D -c grid current 1.5 max amperes ****Modulation, essentially negative, may be used if the positive peak of the audio envelope does not exceed 115 per cent of carrier conditions. TECHNICAL INFORMATION (CONT'D) Typical operation D -c plate voltage D -c plate current D -c grid voltage Peak r -f grid voltage D -c grid current, approximate Driving power, approximate Power output, approximate 17,000 7.50 -1000 1700 1.00 1700 100,000 15,000 8.60 -700 1400 1.15 1500 95,000 12,000 7.20 -1000 1700 1.15 1900 60,000 10,000 volts 7.15 amperes -1000 volts 1700 volts 1.15 amperes 1900 watts 50,000 watts GL -895 ETI-251C PAGE 3 9-51 APPLICATION NOTES Maximum ratings apply up to 6 megacycles. The tube may be operated at higher frequencies provided the maximum values of plate voltage and power input are reduced according to the tabulation below (other maximum ratings are the same as shown above). Special attention should be given to adequate ventilation of the bulb at these frequencies. Frequency Percentage of maximum rated plate voltage and plate input Class C plate modulated olb Class C unmodulated 6 12 100 90 100 85 25 megacycles 81 per cent 70 per cent GL -895 AVERAGE PLATE CHARACTERISTICS 70 iiiiiiiiiiiiiiiiiiiiiiiirMilifiliiiiffir iiiiiiiiipiliffirrid HIIIIMMENIERPAKTERPOMELSMINBALJP.MELIEN 60 1mg1mm11Bm1Eu1n1E1ru1Nm11Em1m11p1Er1gm1o1igm11no1o1rwm11ao1n1ud1ri0zto0at0ml1ig1pg1oe1n1n1nu1um1m1o1u1mr1ou1u1mn1 50 ;;;;;;I:;;;;INIAME:bijiii!!!!!!!!"!!!:!!!!!!!!!!!"! ismouforsnesrioiksautiillmdhainuommpoasiiiioiisiioMmPmRoIbmilmliioiiimiiipiiii 40 Migniallhall1111011101110 30 20 11111111111111111111111111111111111 m! r0911111111i41""1111111111111: ill 10 illig111111111110 nig 0111111b' 5 10 15 PLATE VOLTAGE IN KILOVOLTS K-9186087 6-18-47 GL -895 ETI-251C PAGE 4 9-51 GL -895 CHARACTERISTICS MUCMC74=1447117NrIMEMMEMMEMMIN MOM LIAMMIMULLILIMEAMM441&LWIMMIMMIIMMIM I UN1 100 MIIIMIMMEMMLIMIMMEMIEW MMMM b 0111 ME M MI MM A .zommmonsmmhimh.ner wommommimplow4 namungh awilma - ' IIIME1712:! MMMMM OD u6mh.m4i4rMaOmmREMN!-MMMMEMM4M worumamo M m M 04 IMMNPNEVAININIOMM4=1.41114.,. .MM M MWOMINMILMOW M Or 440 NEUMEM&MMO ENFIVIONFAMMN M UN MM 4441.4 MM ,AN MCMMMIUINOMMEMIMRCMW ON MLNAMWMALUMN , 44404 :s am 75 ,mm MMM X M 41,40MbNMA EMENAMIL4kOM MEM4111n,NhInMoM rrioggrmws MMEMAM&W,OONGANIMPANMMO.N r 41414114VWMOWMANMMIN MM M 04,141424, 4411,4:4,04i EMIVMOMOMMU OME ZNIMM4M .... MM r.0.MUMMIM EIMANOA0.402NEW7ENW.5. ITOrMilF4UM MMEMNeN4,C40M/M0O2M0440kWNhWNON.IAMIN MM,0MWWW M V4 N 50 4M4A00E1. MIFi%N MMAL MUNN' 25 -250 -500 0 K-9186074 2.5 5 7.5 10 PLATE VOLTAGE IN KILOVOLTS 12.5 15 12-10-45 GL -895 TYPICAL GRID -PLATE TRANSFER CHARACTERISTICS 15 0 K-9186088 5 10 PLATE VOLTAGE IN KILOVOLTS 15 12-10-45 GL -895 FILAMENT CHARACTERISTICS 140 120 .(.2 100 ce w° 80 o-60 cc CJ CJ 40 20 K-9186073 5 10 15 20 FILAMENT VOLTAGE VOLTS TO NEUTRAL 12-10-45 70 50 0)30 wcc 20 GL -895 AVERAGE FILAMENT EMISSION z 10 z0- 7 5 cr) w 3 <- 2 0 I- 10 K-9186072 11 12 13 14 15 16 17 18 19 FILAMENT VOLTAGE TO NEUTRAL IN VOLTS 20 1-9-46 GL -895 ETI-251C PAGE 5 9-51 GL -895 ETI-251C PAGE 6 9-51 GL -895 FILAMENT CONNECTIONS V1 =19 VOLTS V2 =33 VOLTS A=139 AMPERES TUBULATION TIP OFF BLACK 2, 4, 6 -FILAMENT TERMINALS RED 1, 3, 5 -GRID TERMINALS K -69087-72A193 12-10-47 GL -895 ETI.251C PAGE 7 9-51 TERMINALS 1,3115 GRID MARKED RED TERMINALS 2,481 6 THREEPHASE Y FILAMENT MARKED BLACK 11 I- MAX.-' P.,. I" 232 6 .1I-" DIA BASE 1869 3,1+ IA 238- - 5.687"--- 1-.010" DIA. 4.5 00" -1-.040" ' DIA. 12 115161+-1A-r 0.e PLATE K-9186157 OUTLINE GL -895 PLIOTRON 12-12-47 Tube Department, Electronics Division GENERAL ELECTRIC Schenectady, N. Y. 9-51 (1SM) GL -895-R DESCRIPTION AND RATING ETI-252C PAGE 1 9-51 TRIODE DESCRIPTION The GL -895-R is a forced -air cooled transmitting quency power amplifier, or oscillator. The plate is tube for use as a Class B modulator, radio-fre- capable of dissipating up to 20 kilowatts. TECHNICAL INFORMATION GENERAL Electrical Data Minimum Filament voltage, to neutral* Filament current, per phase 128 Filament starting current Filament cold resistance (per phase to Y center) Amplification factor, E, = -100 volts, Ib = 1. amp 30 Interelectrode capacitances Grid -plate 32 Grid -filament 64 Plate -filament 5 Bogey 19 138 0.013 37 40 80 8 Maximum 20 volts 146 amperes 210 amperes ohm 43 48 uuf 96 uuf 11 uuf GENERAL ELECTRIC Supersedes ETI-2528 dated 9-48 GL -895-R ETI-252C PAGE 2 9-51 TECHNICAL INFORMATION (CONT'D) Mechanical Data Mounting position vertical, radiator down Type of cooling forced air Maximum incoming air temperature 45 C Required air flow on anode t Plate dissipation-kilowatts 20 16 12 Air flow-cubic feet per minute 1800 1550 1300 Pressure-inches water 1 5 1.1 0.8 Required air flow on filament and grid thimbles 5 CFM Maximum temperature of filament seals 150 C Net weight, approximate 225 pounds *When the load conditions are lower than maximum, the tube may usually be operated with reduced filament voltage. Temperature of anode seal must not exceed 180 C. MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS AUDIO -FREQUENCY POWER AMPLIFIER AND MODULATOR -CLASS B Maximum ratings, absolute values D -c plate voltage Maximum signal d -c plate current Maximum signal plate input$ Plate dissipation Temperature of air cooler** Typical operation Unless otherwise specified, values are for 2 tubes D -c plate voltage Zero signal d -c plate current Maximum signal d -c plate current D -c grid voltage Peak a -f grid -to -grid voltage Effective load resistance, plate to plate Maximum signal driving power, approximate Maximum signal power output, approximate Averaged over any audio -frequency cycle of sine -wave form. 17,000 max volts 9 max amperes 50,000 max watts 20,000 max watts 180 max C 10,000 2.00 10.80 -200 1200 2100 600 70,000 10,000 volts 2.00 amperes 5.10 amperes -200 volts 800 volts 3600 ohms 75 watts 30,000 watts PLATE -MODULATED RADIO -FREQUENCY POWER AMPLIFIER -CLASS C TELEPHONY CARRIER CONDITIONS PER TUBE FOR USE WITH A MAXIMUM MODULATION FACTOR OF 1.0 Maximum ratings, absolute values D -c plate voltage D -c plate current Plate input Plate dissipation D -c grid voltage D -c grid current Temperature of air cooler** 12,500 max volts 5 max amperes 62,500 max watts 13,500 max watts -3000 max volts 1.5 max amperes 180 max C Typical operation D -c plate voltage D -c plate current D -c grid voltage Peak r -f grid voltage Driving power, approximate Power output, approximate 12,500 2.50 -1400 1810 780 25,000 12,500 4.40 -1500 2080 1700 45,000 10,000 volts 3.35 amperes -1500 volts 2000 volts 1300 watts 25,000 watts TECHNICAL INFORMATION (CONT'D) GL -895-R En -252C PAGE 3 9-51 RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR -CLASS C TELEGRAPHY KEY -DOWN CONDITIONS PER TUBE WITHOUT MODULATION*** Maximum ratings, absolute values D -c plate voltage D -c plate current Plate input Plate dissipation D -c grid voltage Grid current Temperature of air cooler** Typical operation D -c plate voltage D -c plate current D -c grid voltage D -c grid current, approximate Driving power, approximate Power output, approximate Peak r -f grid voltage 17,000 6.0 -1800 0.9 2200 84,000 2500 15,000 6.4 -1500 1.0 2100 75,000 2200 17,000 max volts 9 max amperes 110,000 max watts 20,000 max watts -3000 max volts 1.5 max amperes 180 max C 12,000 7.20 -1000 1.15 1900 60,000 1700 10,000 volts 7.15 amperes -1000 volts 1.15 amperes 1900 watts 50,000 watts 1700 volts **Temperature is measured in thermometer well. The normal forced air of 1800 cubic feet per minute requires a static pressure of 1.5 inches of water and must be started before application of any voltage and continue for at least 5 minutes after removal of voltages. Temperature or anode seal must not exceed 180 C. An air flow of at least 5 cubic feet per minute through a nozzle directed at filament bases is required before and during application of any voltages to limit temperature of filament seals to 150 C. ***Modulation, essentially negative, may be used if the positive peak of the audio frequency envelope does not exceed 115 per cent of the carrier conditions. APPLICATION NOTES Maximum ratings apply up to 6 megacycles. The tube may be operated at higher frequencies provided the maximum values of plate voltage and power input are reduced according to the tabulation below (other maximum ratings are the same as shown above). Special attention should be given to adequate ventilation of the bulb at these frequencies. Frequency Percentage of maximum rated plate voltage and plate input Class C plate modulated Class C unmodulated 6 12 100 90 100 85 25 megacycles 81 per cent 70 per cent GL -895-R ETI-252C PAGE 4 9-51 GL -895-R AVERAGE PLATE CHARACTERISTICS 70 umummIIRICINELTENNEUEN11. HOUFRIONNEMEd iiiiiiiiiiiiiiiiplirradirMIBILITMENEWIMmudimp 60 mmuiummmmilmulmlpli 191111111111111111111111 1111.111 1111 50 h::o::m:PnMPAPRINPIoMidlitiakbiledlilkEigligiitEilnlittii 40 1111111111 30 20 nue1dm1111u11n11i51u11m1111.1.1.1m111-m111i1dd1iid0g1lid1mi1t11ui1rlal0i. 011111011111111110111111111111 10 Gil 111111111111111111111111_.1. 111111 milan5nohotramoso10....,__ 15 K-9186087 PLATE VOLTAGE IN KILOWATTS 6-18-47 GL -895-R CHARACTERISTICS LEMMEMOOMMMEAMEEMM .....IN 1... .NN 100 mioMMEmMMmMwmI.iMoI-1mIrI11mImWVa1maIMlMUmmEktMmWaMaIMlWolMLEpMknM.m0LOeS.E'MurMOwrMMMEafM.MMNNSMEWMMFMW'MAMIME4OMIAMMMMMM4MEEMM1pMNMI1MNM1LU.LEEMMAMMMMOMMMIM2IMI1NLAMUmIRRWmMNoEREUMTMMM.oMUMMMAIMMIE.oO.,MMumMMM.,mOAO,mouWMMnomUMM0Mum.M4m.M4r.mIMMouEMOeuPNaAmMwoINmMgmM0iEamMmmM,EM4moms ....... MILPIMMOMMEUM'I 75 gplomh MM um M 'mmisiwomw IMMMMIEMLMAKMOEMWMVOOMMMOAIGEMMEOU0 AMMEM,MMEMb..AMSEh!MMEMIOMMAMMEft- ,hmMa.m0m6M.iO1rM1eMEMnKESEsEiMnN,IM0SLNMEUMMMWEOM.._ ummwaiww, M m MMMBIATOMMOOM EMU MtIbli I. MMI 1.16 MM.Ve 50 Iii4OWE emmeuzmima. irirWl. 1: ViN .2...i, 250 0 -250 -500 0 2.5 K-9186074 5 7.5 10 PLATE VOLTAGE IN KILOVOLTS 12.5 15 12-10-45 GL -895-R TYPICAL GRID -PLATE TRANSFER CHARACTERISTICS 15 10 5 0 0 K-9186088 5 10 PLATE VOLTAGE IN KILOVOLTS 15 12-10-45 GL -895-R ETI-252C PAGE 5 9-51 GL -895-R ETI-252C PAGE 6 9-51 140 120 100 80 60 ccrr 8 40 20 GL -895-R FILAMENT CHARACTERISTICS 70 50 30 w LCCi 20 2a_ z i° 7 5 3 2 0 5 10 15 20 K-9186073 FILAMENT VOLTAGE VOLTS TO NEUTRAL 12-10-45 GL -895-R AVERAGE FILAMENT EMISSION 1 10 K-9186072 II 12 13 14 15 16 17 18 19 20 FILAMENT VOLTAGE TO NEUTRAL IN VOLTS 1-9-46 OUTLINE GL -895-R PLIOTRON GL -895-R ETI-252C PAGE 7 9-51 TERMINALS 1,3 &5 GRID -MARKED RED TERMINALS 2,4 a 6 THREE- PHASE Y FILAMENT - MARKED BLACK TERMINAL 7 FILAMENT MID TAP - MARKED BLACK BASE 1869 6 4-"DIA. ( 24 +-12- ll16 DIA. K-9033945 12-12-47 Tube Department, Electronics Division GENERAL ELECTRIC Schenectady, N. Y. 9-51 (111\4) GL -473 DESCRIPTION AND RATING En -281 PAGE 1 8-48 PLIOTRON DESCRIPTION The GL -473 is a three -electrode tube designed is forced -air cooled and is capable of dissipating 2.5 for use as a Class B power amplifier and modulator kilowatts. The cathode is a thoriated-tungsten filaor Class C power amplifier or oscillator. The anode ment. Maximum ratings apply up to 60 megacycles. These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes 3 Electrical Cathode-Filamentary Voltage Current Average characteristics Amplification factor Direct interelectrode capacitances Grid -plate Grid -filament Plate -filament 6 volts 60 amperes 22 15 micromicrofarads 17 micromicrofarads 0.6 micromicrofarad GENERAL ELECTRIC GL -473 ETI-281 PAGE 2 8-48 TECHNICAL INFORMATION (CONT'D) Mechanical Mounting position Type of cooling Maximum incoming air temperature Net weight, approximate vertical forced air* 45 centigrade 3% pounds * The required forced air flow (see curve) must be started with the application of filament voltage and may be shut off at the same time as removal of all voltage. MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS AUDIO -FREQUENCY POWER AMPLIFIER AND MODULATOR -CLASS B Maximum Ratings, Absolute Values D -c plate voltage Maximum signal d -c plate currents Maximum signal plate inputt Plate dissipations 3000 max volts 1.4 max ampere 4200 max watts 2500 max watts Typical Operation Unless otherwise specified, values are for two tubes D -c plate voltage D -c grid voltaget Peak a -f grid -to -grid voltage Zero signal d -c plate current Maximum signal d -c plate current Load resistance, per tube Effective load resistance, plate to plate Maximum signal driving power, approximate Maximum signal power output, approximate 3000 -160 820 0.66 2.80 765 3060 140 4350 volts volts volts ampere amperes ohms ohms watts watts Averaged over any audio -frequency cycle of sine -wave form. t Grid voltages are given with respect to midpoint of filament operated on a -c. If d -c is used each stated value of grid voltage should be decreased by 4.25 volts and the circuit returns connected to the negative end of the filament. RADIO -FREQUENCY POWER AMPLIFIER -CLASS B Carrier conditions per tube for use with maximum modulation factor of 1.0 Maximum Ratings, Absolute Values D -c plate voltage D -c plate current Plate input Plate dissipation Typical Operation D -c plate voltage D -c grid voltage Peak r -f grid voltage D -c plate current D -c grid current, approximate Driving power, approximate Power output, approximate 3000 max volts -1.4 max ampere 3300 max watts 2500 max watts 3000 -160 280 1.1 50 15 800 volts volts volts ampere milliamperes watts watts PLATE -MODULATED RADIO -FREQUENCY POWER AMPLIFIER -CLASS C TELEPHONY Carrier conditions per tube for use with a maximum modulation factor of 1.0 Maximum Ratings, Absolute Values D -c plate voltage D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation 3500 max volts -1000 max volts 1.4 max ampere 500 max milliamperes 4000 max watts 2500 max watts GL -473 ETI-281 PAGE 3 8-45 TECHNICAL INFORMATION (CONT'D) Typical Operation D -c plate voltage D -c grid voltage Grid resistor Peak r -f grid voltage D -c plate current D -c grid current, approximate Driving power, approximate Power output, approximate RADIO -FREQUENCY POWER AMPLIFIER -CLASS C TELEGRAPHY Key -down conditions per tube without amplitude modulations Maximum Ratings, Absolute Values D -c plate voltage D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation 3500 -600 2150 950 1.14 280 270 3200 volts volts ohms volts ampere milliamperes watts watts 5000 max volts -1000 max volts 1.4 max ampere 500 max milliamperes 5000 max watts 2500 max watts Typical Operation D -c plate voltage D -c grid voltage Grid resistor Peak r -f grid voltage D -c plate current D -c grid current, approximate Driving power, approximate Power output, approximate ¶ Modulation essentially negative may be used if the positive 115 per cent of the carrier conditions. @60 5000 -850 400000 1.0 210 250 4100 @110 3500 -600 2400 940 1.0 250 235 2800 @110 3500 -300 1950 555 1.0 155 85 2550 megacycles volts volts ohms volts ampere milliamperes watts watts not exceed RADIO -FREQUENCY POWER OSCILLATOR -CLASS C TELEGRAPHY Key -down conditions per tube without modulation Maximum Ratings, Absolute Values D -c plate voltage D -c grid voltage D -c plate current D -c grid current Plate input Plate dissipation 5000 volts -1000 volts 1.4 ampere 500 milliamperes 5000 watts 2500 watts Typical Operation D -c plate voltage D -c grid voltage Grid resistor Peak r -f grid voltage D -c plate current D -c grid current, approximate Power output, approximate 5000 volts -850 volts 4000 ohms 1200 volts 1.0 ampere 210 milliamperes 3900 watts Maximum ratings apply up to 60 megacycles. The tube may be operated at higher frequencies provided the maximum values of plate voltage and power input are reduced according to the tabulation below (other maximum ratings are the same as shown above). Special attention should be given to adequate ventilation of the bulb at these frequencies. Frequency Percentage of maximum rated plate voltage and plate input Class B Class C plate modulated Class C power amplifier unmodulated Class C oscillator unmodulated 60 110 megacycles 100 - per cent 100 - per cent 100 70 per cent 100 - per cent GL -473 ETI-281 PAGE 4 8-48 GL -473 QUANTITY OF AIR REQUIRED VS ALLOWABLE PLATE DISSIPATION 2.8 11111111111111111111 2.4 IIIIIIIIIIIIIIIIIIIIIIII GL -473 TOTAL RESISTANCE PRESSURE OF AIR COOLER FOR VARIOUS QUANTITIES OF AIR 1.8 IIIIIIIIIIIIIM MEMIIMM" IIIIIIMM EMMA A Lossromo 1.6 IA VA 14 2.0 111:111:11111111 16 12 EGG 10 El 1 IA TA IA IA 1111111111111100100011 08 1.2 1 11111111111111111111111111111111111111111 0 M 111111111101111MIIIIIINIMMIll 06 G8 1 0.4 GG 0.4 11111111111110111111111110111111 IIIIIIIIIIIIIIIIIIIII NI 111111111111111110 IIII 0.2 74 80 K -69087-72A163 100 120 140 50 16 CFM OF AIR TFRJ AIR COOLER 8-4-47 70 90 K -69087-72A164 110 130 150 170 CFM OF AIR THRU.A1R COOLER 8-4-47 GL -473 ETI-281 PAGE 5 8-48 GL -473 CONSTANT CURRENT CHARACTERISTICS 1000 omigmdmmummimm m g2 ummMsIPERMENMEMSEMEMMOMMEMM 1 MillIk511110111, ' .. .1m11m251211111111 .........mgmEvumumAug......m.mmurmnommmum ZERIEMMO 0 IMMPM m'a MMM ME 800 OMMBMEMUIHLEdaii=m =HEN A0EMEMEMMEG2 MMMMMMMMM 111111111MING.... 9 .. 221021002 M A MM 0 7 milipeam MMMMM MEMMENYMMINNOMMUM MREMR IMAM MENMEEMUM MMMM 0 MM romminumm MR . 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MMMMMMMMMMMMM mommommommommummum.m..enno.+ 200 22 gMN ....- magmmomm.- mmougs g= ""' "'MI:I:11114 Iiiig:M_ MMMMM IMIIIMIIIIIIIIMM M.... ....m won " m"!"11141211111 .12" mmang n 00.111 202000mg .- M Ms eialingli 112 1111 -409, 0 5 1 1.5 2 gra..! MM '..."40111"111 :1910 2 5 3 3.5 4 4.5 5 PLATE VOLTAGE IN KILOVOLTS K -69087-72A165 8-4.47 GL -473 ETI-281 PAGE 6 8-48 OUTLINE GL -473 T7g"MIN. .1 8 8"± .007 " .25011+ .007" I" MAX. V'-I L 7-it 4 MAX II 3 8-- MAX. I" 2g ±32 3 7 - 32 1 <-3-71,1_ 3 - 6 NC I16- 8 0m.a0r1k.) 30*+ 3° wk. ,oeti 30°+3° GRID TERMINALS 40FILAMENT NC TERMINALS VIEW AT "A" 8-48 (9M) Filing No. 8850 N15102AZ 8-6-47 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 01-5610 DESCRIPTION AND RATING ETI-291 PAGE 1 12-48 PLIOTRON DESCRIPTION The GL -5610 is a 7 -pin miniature triode amplifier for industrial application where small size is a factor. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes Electrical Cathode-coated unipotential Heater voltage Heater current Mechanical Mounting position-any Envelope-T-5 glass Base-Miniature glass button 7 -pin Maximum diameter Maximum over-all length Maximum seated height 4 6 3 volts 0 15 ampere % inch 2 N inches 1% inches GENERAL ELECTRIC GL -5610 ETI-291 PAGE 2 12-48 TECHNICAL INFORMATION (CONT'D) MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS Maximum ratings, design center Plate voltage A -c heater -cathode voltage Plate dissipation Typical operation Class A amplifier Heater voltage Plate voltage Grid bias voltage Grid voltage for plate current =10 microamperes, approximate Plate current Transconductance Plate resistance Amplification factor 300 volts 117 volts 3 0 watts 6 3 volts 90 volts -1.5 volts -15 volts 17 milliamperes 4000 micromhos 3500 ohms 14 30 NONE MUMMMMMMOMM1U1MM"IMMA AW N MI:WM =WM MAR MMMMMMMMIMUUMMUWMOMMEMERMMMMIMNMKMNMIMIMMMMMMMMMMIMU1MM1M1I111L01101410UMIV 25 MMEUMJBIEIMMENERNMEEMMMNIEKMEMMOMMUMUEMNMEEMMAMNIUMRMEEMMEOMMMMUMMMMF0 AM 'A MUMNIMMWEER MENNIMMEMUMINIMERMAMEMM il NwOwMwMiUmMmBwNmUiMlEmRmNwMwMwImNuEmRaEnMoEmMUmMwMwEwMwBwEwMwEwNwUiBmMmIoMmImMwMmUwMwMwIOaNn WuAMIPANEU MEM!! 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I. M 2.1 ..: MAMMENUM .. !A' 0 0 50 100 150 200 PLATE VOLTAGE IN VOLTS K -69087-72A247 GL -5610 PLATE CHARACTERISTICS 7-22 -48 TERMINAL CONNECTIONS PIN 1 -PLATE PIN 2 -CATHODE PIN 3 -HEATER PIN 4 -HEATER PIN 5 -PLATE PIN 6 -GRID PIN 7 -NO CONNECTION GL -5610 ETI-291 PAGE 3 12-48 ...._ 43" MAX. 2 -e - MAX. 1-8111 MAX. Gls 2 - 32 MINIATURE BUTTON 7-PIN BASE NO. E7- I BASING DIAGRAM N-15123AZ 6CG OUTLINE PLIOTRON GL -5610 6-7-48 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 12-48 (9M) Filing No. 8850 GL -5691 DESCRIPTION AND RATING ETI.297 PAGE 1 5-49 PLIOTRON DESCRIPTION The GL -5691 is a high -mu twin triode, highvacuum tube for industrial use. It is designed particularly for use as a voltage amplifier in industrial applications where uniformity and stability of characteristic and resistance to shock and vibra- tion are required. In addition to these features the 5691 has its heaters for the two triode units con nected in series with the result that failure of either heater in bridge circuits makes both units inopera- tive. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Cathode-Indirectly heated Heater voltage (A -C or D -C) Heater current 6 3 5%* volts 0.6 ampere Direct interelectrode capacitances with no external shield Triode Unit No. 1Grid to plate Grid to cathode Plate to cathode Minimum Average Maximum 3.1 3.6 4.1 uuf 1.9 2.4 2.9 uuf 1.8 2.3 2.8 uuf Triode Unit No. 2Grid to plate Grid to cathode Plate to cathode 3.1 3.6 2.2 2.7 2.1 2.6 4.1 uuf 3.2 uuf 3.1 uuf Plate of Triode Unit No. 1 to Plate of Triode Unit No. 2- 2.7 3.2 3.7 uuf GENERAL ELECTRIC GL -5691 ETI.297 PAGE 2 5-49 Th Mechanical Data Mounting position -any Net weight, approximate TECHNICAL INFORMATION (CONT'D) 3 ounces MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS Values are for each Unit Maximum ratings, absolute values D -c plate voltage D -c plate supply voltage Grid voltage Negative bias range Negative peak value D -c grid current D -c cathode current Plate dissipation Peak heater -Cathode voltage Heater negative with respect to cathode Heater positive with respect to cathode Ambient temperature range Maximum circuit value (for any operating condition) Grid -circuit resistance Characteristics and range values Heater voltage Plate voltage Grid voltage 275 max volts 330 max volts -1** min to -100 max volts -200 max volts 2 max milliamperes 10 max milliamperes 1 max watt 100 max volts 100 max volts 55 - to +90 C 2 max megohms 6 3 volts 250 volts -2 volts Heater current Minimum Average Maximum 0.55 0.6 0.65 amperes Heater -cathode current with heater -cathode voltage of 100 volts Plate current Plate current for grid voltage of -5.5 volts 5 microamperes 1.7 2.3 2.9 milliamperes 15 microamperes Difference in plate current between triode units Reverse grid current Amplification factor Plate resistance 0.9 milliampere 0.2 microampere 60 70 80 44000 .... ohms Transconductance 1300 1600 1900 micromhos Typical operation -resistance -coupled amplifier (each triode unit) Plate -supply voltage 90 180 300 volts Plate load resistor 0.1 0.22 0.47 0.1 0.22 0.47 0.1 0.22 0.47 megohms Grid resistor (of following stage) 0.22 0.47 1.0 Cathode resistor 4700 7400 14400 Cathode bypass capacitor*** 2.1 1.3 0.7 Blocking capacitor*** 0.014 0.0065 0.0035 0.22 0.47 1.0 2600 4600 9000 2.8 1.6 0.9 0.014 0.0065 0.0035 0.22 2180 3.1 0.014 0.47 3970 1.8 0.0065 1.0 megohms 7550 ohms 1 uf 0.0035 uf Peak output voltage**** 9 13 17 30 37 44 59 76 88 volts Voltage gain 27f 35$ 40$ 331 421 461 361 451 501 *May deviate 10 per cent from rated value provided such deviation occurs for less than 2 per cent of the operating time. **For resistance -coupled amplifier applications, the negative bias may be as low as -0.5 volt. ***The cathode by-pass capacitors and blocking capacitors have been chosen to give output voltages at 100 cycles per second (ft) which are equal to 0.8 of the mid -frequency value. For any other value of (ft), multiply the values of cathode by-pass and blocking capacitors by 100/f1. ****This peak output voltage is obtained across the grid resistor of the following stage at any frequency within the flat region of the output vs frequency curve, and is for the condition where the signal level is adequate to swiing the grid of the resistance coupled amplifier tube to the point where its grid starts to draw current. tAt an output voltage of 3 volts rms. $At an output voltage of 4 volts rms. ¶At an output voltage of 5 volts rms. GL -5691 AVERAGE CHARACTERISTICS GL -5691 ETI-297 PAGE 3 5-49 ummomormom 70 6 ashomrsommomumm 60 50 -1" - 6 40 tj 0.5 0.4 11 11 0.3 oulmomulon lummiim 2000 0.2 11101111101111111111111111111111011 0.1 immummoommoimmillorammuoimmp 1500 11111110111111111111111111111111111111110111 IMPIPNIMMIIMP11119111lirk WHIIIIMEINIMMINIMMIVIIIRMINIWIMIIMMEI 1000 1 0 0 EIJI rig11101 qmunrumumuummummumnumumuy /1111111111111111111111111111111011 500 11111111111111110PIEllimmimmil!lIIi1iInr III II 111111, Pio -8 -7 -6 -5 -4 -3 -2 GRID VOLTAGE IN VOLTS K -69087-72A226 0 5-17-48 GL -5691 ETI-297 PAGE 4 5-49 GL -5691 AVERAGE PLATE CHARACTERISTICS EACH TRIODE UNIT E1=6.3 VOLTS 2 0 :1111.1, I II ui Er r EAIMMENUMMEMEMPII 1111 1 1 15 ,1 I I IIIIMENEEF A II A II rlarIVI nai 1 ::::::.,, FE a r ::::m1111 IMEE.111 1 11 MEW' IMM INN AM: 1 1, MERE: 11 ia 1.0 1 rj ri A r, 0.5 Ii MMEONEMM :Ur I EMEI EMU EA v. °o 1'4 aoor. 11A1M.EMEMO WIEN MiMM pow4 MEN: 100 K -69087-72A225 Fr MMM EMMEN,/ I 1, 1 A M um I I I a a 'ANEMIA ME% II r. 1. EMU li 1 I , I EWEN, FM A /EWA IMMMY'/,IFMMEIMIMMEMMMMMM MMM I AMR/ FA MN WEEMS/ MA MMMMMMM nEEEEE,a NEb MMNI;1 MM II 4 riENNE.v. r1 MM am pmmuEmrimmoimp.smimmm4m r MMMMMMM ismscommi M r A dL. AVAd AM LENNIE 1. r, RENNER / AMMMEMEMM MMMMM 1 N MMMMMMMM MUIPMFA OMM, .MMVAIMMEMMEn MMMMM MM 1111:1:11m 200 300 400 PLATE VOLTAGE IN VOLTS 500 5-17-48 OUTLINE GL -5691 PLIOTRON 116 MAX. N-15120AZ 5-49 (00M) Filing No. 8850 SHORT INTERMEDIATE - SHELL OCTAL 8 -PIN BASE MAX. MAX. 11 132 MAX. BASING DIAGRAM GT1 1E1 PT! 0 KT) o o 2 4we G H 8BD Electronics PIN 1: PIN 2: PIN 3: PIN 4: PIN 5: PIN 6: PIN 7: PIN 8: GRID OF TRIODE UNIT NO. 2 PLATE OF TRIODE UNIT NO. 2 CATHODE OF TRIODE UNIT NO. 2 GRID OF TRIODE UNIT NO. 1 PLATE OF TRIODE UNIT NO. 1 CATHODE OF TRIODE UNIT NO. 1 HEATER HEATER Department 5-17-48 GENERAL ELECTRIC Schenectady, N. Y. GL -5692 DESCRIPTION AND RATING ETI-298 PAGE 1 5-49 PLIOTRON DESCRIPTION The GL -5692 is a medium -mu twin triode, high - vacuum tube designed particularly for use in industrial applications as a balanced d -c amplifier, multivibrator, blocking oscillator, and resistance - coupled amplifier. The heaters for the two triode units of the 5692 are connected in series so that failure of either heater in bridge circuits makes both units inoperative. Other features of this tube are stability and uniformity of characteristics, resistance to shock and vibration, and long life. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Cathode-Indirectly heated Heater voltage (a -c or d -c) Heater current Direct interelectrode capacitances, with no external shield 6.3 5%* volts 0.6 ampere Triode Unit No. 1Grid to plate Grid to cathode Plate to cathode Triode Unit No. 2Grid to plate Grid to cathode Plate to cathode Plate of Triode Unit No. 1 to Plate of Triode Unit No. 2 Minimum Average Maximum 3.0 3.5 4.0 uuf 1.8 2.3 2.8 uuf 2.0 2.5 3.0 uuf 2.8 3.3 2.1 2.6 2.2 2.7 3.8 uuf 3.1 uuf 3.2 uuf 2.7 3.2 3.7 uuf GENERAL ELECTRIC GL -5692 ETI-298 PAGE 2 5-49 Mechanical Data Mounting position -any Net weight, approximate TECHNICAL INFORMATION (CONT'D) 3 ounces MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS Values are for each Unit Maximum ratings, absolute values D -c plate voltage D -c plate supply voltage Grid voltage Negative bias value Negative peak value D -c grid current D -c cathode current Plate dissipation Peak heater -cathode voltage Heater negative with respect to cathode Heater positive with respect to cathode Ambient temperature range Maximum circuit value (for any operating condition) Grid -circuit resistance Characteristics and range values Heater voltage Plate voltage Grid voltage 275 max volts 330 max volts -1** min to -100 max volts -200 max volts 2 max milliamperes 15 max milliamperes 1.75 max watts 100 max volts 100 max volts -55 to +90 C 2 max megohms 6 3 volts 250 volts -9 volts Heater current Heater -cathode current with heater -cathode voltage of t 100 volts Plate current Plate current for grid voltage of -24 volts Difference in plate current between triode units Reverse grid current Amplification factor Plate resistance Transconductance Typical operation -resistance -coupled amplifier (each triode unit) Plate -supply voltage 90 180 Plate load resistor 0.05 0.1 0.25 0.05 0.1 Grid resistor (of following stage) 0.1 0.25 0.5 0.1 0.25 Cathode resistor Cathode by-pass capacitort Blocking capacitort Peak output voltaget 2070 2.66 0.029 14 3940 1.29 0.012 17 9760 0.55 0.007 18 1490 2.86 0.032 30 2830 1.35 0.012 34 Voltage gain P 12 13 13 13 14 Minimum Average Maximum 0.55 0.6 0.65 amperes 5 microamperes 4.8 6.5 8.2 milliamperes 15 microamperes 2.0 milliamperes 0.2 microampere 18 20 9100 22 .... ohms 1825 2200 2575 micromhos 0.25 0.5 7000 0.62 0.007 36 14 300 volts 0.05 0.1 0.25 megohms 0.1 0.25 0.5 megohms 1270 2440 5770 ohms 2.96 1.42 0.64 uf 0.034 0.0125 0.0075 uf 51 56 57 volts 14 14 14 *May deviate t 10 per cent from rated value provided such deviation occurs for less than 2 per cent of the operating time. **For resistance -coupled amplifier applications, the negative bias may be as low as -0.5 volt. tThe cathode by-pass capacitors and blocking capacitors have been chosen to give output voltages at 100 cycles per second (f1) which are equal to 0.8 of the mid -frequency value. For any other value of (f1), multiply the values of cathode by-pass and blocking capacitors by 100/f1. $This peak output voltage is obtained across the grid resistor of the following stage at any frequency within the flat region the output vs frequency curve, and is for the condition where the signal level is adequate to swing the grid of the resistance - coupled amplifier tube to the point where its grid starts to draw current. At an output voltage of 5 volts rms. 81, LL -g 0 Sil0A NI 39V110A 0189 9- 8- 01- ZI- t1- 91- 8 Z Z ',;,'ZL-L8069-)1 81 - OZ- MIME -411 r AMINE 005 ....I.D17 IIMAMAAMMIYAMI111121111111MAll111211111Y.1;0112111111111121112121 Ft MMMMMM I mom MMMMMMM 000 t Y. r, PI MAAMANAMMLAMAAMAAMMAAMAAAANAMMAAY MARNA MAMMINIAAAANAIMMIMAAANAAMS,4 MMMMM AMAIIMAIIMAMAII oog t 11 SIMAIWA 000Z 3 OA AMMAN MAMMA 0052 O iummiumm. A A A 000£ . 1 ..111 ..AMMAMANIIMMAR A 1111111111IIIMMIM1111111111111SIMMIN1111AN 'A AAA A NC:F. !AN- 1.7 00S£ INAMANAMMAI, :MAMA 1 MMAMMAMAMEMMImIIM1 mlA2 UMMARA 1 OMM1 II II II IA' SA 1 AMMAMMAKMAI I VAL ."110 1M MAMMA WMA1 NAMA AMA 1 ARA MAMA. MAMMAMAMMI 1 1M 211111111 1 AMMOMMAAAMMAKAMO AMAMI IMMAAMMAAM MAMMANAI MAANAMMAAMAUMAIMIMAMA MMMMMMMM 1MM 1 111.1 AlMIIMEMEAMMIMIMAMAMMAMAMMMAMMMMMM AM :3 M dim IIIIIIMAIMIMM MAMA 1. s '740111111 2IMW MAAMMAMMESAMAZIAAM MIAMI KAMAN MMOMMAMEMAMA MMMMMM AMMAIIIIMAMMEMA SI OZ .11 I. MMAARMANAMMAMAMMAMMMMM MAMMAL!AMA I110MwMary WAEINAMMAA AMMAN I SZ MAMMA O .....AM MAMAMAMA MAMA MMMMMM EMAMONMAMMANMAMMAA MMMMMMAIMAMMMAAMMNAMOMA.MA.EMAWMM0AA.IM0RIMMIEMMAIM3MAAMMMEM=MAMAAIIANNMMAAMMAM 4 I..MMEMO4MNIAMPJAW ABIENCIEZROLLAW2AMME7MMAt AMMEMAAAMMAAll I 0 0100 OZTO I I 0E0'0 OVO*0 00.0 MIA Tws , GL -5692 ETI-298 PAGE 4 5-49 GL -5692 AVERAGE PLATE CHARACTERISTICS EACH TRIODE UNIT E,=6.3 VOLTS E MEN NOMMEN MENEM. 16 NOON ENIIIE IME1 CCU 111111 ENMNEEMNEMEENMME..NNEEMJ 11 INEEMENNE W1 MNEWN,EMOf U n U 1 MEEMMM,ENMMNMMMIMMMMMMMMMM ENEMA:MI MEMNON 1 EMMEN. A MIME NENE! 12 "SENN SEMEN I I A MmoEmNEM A M A wq FAMMI MMMI A 1 LENT.= MIME 11E4 ME111111 111, 11111111111 11111 AIMMECI A r I MEME1621 A ME! E u1A MEmMMMmENE MsNMEMMMm ' A 1E1 I 1 NM M MENU m.IImmNmEN n Mommumum mono irminiNMEEMNMEENMM NMNEAmm MmognmommommM mNEON mmEng .... 8 Vl Imnommommu gam MMMMMMMM /MENNEMEA nommm.mmri FENUMMENY r A =MOW' "."MMMMMM111:11i1111111 1 1 VENN MEET= WIEN MEEMNEALEMMENEIriIaNlN U iEMMEmENmNN.EUWmEEigMmMEmENoNMmEENUNEMNOMMEMmAAMNiMNsEEMmMEEoEMNrNEEWWA7NAUnTiEuNmSmMiOMEENNE MMEEMM EMMEEMNM NMMEEMMOMENEMMMEIMEMMMMMMEMEMMmE mord AMENNINEF EWA r MENNEN", ASSESSES MEW II,MEMMEN A I 1% MENE USUI MMEM EIIENMEM6-. r M MMEENMEMEIMNMEMMENIISMSEINMNIIMEMNIESEMNs EM, OMMMEI MMMmMMM IImM MEW Amommmim OMENMEWE iSuOmImIEIgIImENWIAT /MMNNEN AMVMEEMEENENYES i 0 AMEN MEMO I ONEE 4 r 11r MM mu :NON:NONE..,,.OENMMOMMMMMMMMM IE SMMEESNMMEENMNShAE WM:FEAMNMENM, 1r11 1EM:: EMMEN OF EM MEN EMNEENEMEEMNNANEENE In imr F MMMMMMM innmnrowima Um 1 A INF A A All 1 'I AMEME7.19111 1 MMEM EONNOMEMEEEN.WMOAMWEN./'A MEWS MA A UN E. UINNNENVA MMMMM r MM IN EMN'JM NM A A EMI M ,M MONM'.1 no MMEENEET'ASM.EEMENEMMANIMNNUEAEENNEMNEEMOMOWY MN MINEMMIIIEr UMWWO/ A A 1.1. . AMEN.: ,M/AMENENO 0 EEEmVWMuAWMAmNAANE1.INpmIWoIEoIMwuNHEEIM_/MMMgAEEMuMUEiWTNIMEuVIErAIMrMIiMmITpIIMrWEoIMmNEm A MICkillICOMM.1 M Ingirmdigim 0 100 200 300 400 500 K -69087-72A227 PLATE VOLTAGE IN VOLTS 5-17-48 OUTLINE GL -5692 PLIOTRON 3" 116 MAX. SHORT INTERMEDIATE- SHELL OCTAL 8-PIN BASE .. 2-g MAX. 21-78'1 MAX. 132 MAX. N-15120AZ 5-49 (10M) Filing No. 8850 8BD Electronics PIN 1: PIN 2: PIN 3: PIN 4: PIN 5: PIN 6: PIN 7: PIN 8: GRID OF TRIODE UNIT NO. 2 PLATE OF TRIODE UNIT NO. 2 CATHODE OF TRIODE UNIT NO. 2 GRID OF TRIODE UNIT NO. 1 PLATE OF TRIODE UNIT NO. 1 CATHODE OF TRIODE UNIT NO. 1 HEATER HEATER Department 5-17-48 GENERAL ELECTRIC Schenectady, N. Y. GL -5693 DESCRIPTION AND RATING ETI.299 PAGE 1 5-49 PLIOTRON DESCRIPTION The GL -5693 is a sharp cut-off five -electrode, high vacuum tube for use as a high -gain, resistance coupled amplifier in industrial applications. A grid No. 1 resistor with a value as high as 40 megohms can be used with this tube depending upon the operating conditions as given on the curve "Operational Characteristics." In addition, the 5693 is characterized by uniformity and stability of characteristic, resistance to shock and vibration, and long life features especially desirable in industrial service. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. Electrical Data Cathode-Indirectly heated Heater voltage (a -c or d -c) Heater current Direct interelectrode capacitances, with shell connected to cathode Grid to plate Input Output 6 3 E 5%* volts 0.3 ampere Minimum Average Maximum .... 0.005 uuf 4.8 5.3 5.8 uuf 5.6 6.2 6.8 uuf Mechanical Data Mounting position-Any Net weight, approximate 3 ounces GENERAL ELECTRIC GL -5693 ETI.299 PAGE 2 5-49 TECHNICAL INFORMATION (CONT'D) MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS Maximum ratings, absolute values ID -c plate voltage D -c plate supply voltage 300 max volts 330 max volts D -c grid No. 3 (suppressor) voltage Negative bias value 0 min -100 max volts D -c grid No. 2 (screen) voltage 125** max volts D -c grid No. 2 supply voltage 330 max volts Grid No. 1 (control -grid) voltage Negative bias range 1*** min to -50 max volts Negative peak value -50 max volts D -c cathode current 10 max milliamperes Plate dissipation 2 max watts Grid No. 2 dissipation 0.3 max watt Peak heater -cathode voltage Heater negative with respect to cathode 100 max volts Heater positive with respect to cathode Ambient temperature range 100 max volts -55 to +90 C *May deviate t 10 per cent from rated value provided such deviation occurs for less than 2 per cent of the operating time. **The 5693 may be operated at a grid No. 2 voltage as high as the maximum rated grid No. 2 supply voltage (330 volts) when the grid No. 2 dissipation is not exceeded for any signal conditions and when a resistor is used in series with the grid No. 2 and its supply voltage. ***For resistance -coupled amplifier applications, the negative grid No. 1 bias may be as low as -0.5 volt. Maximum circuit value (see curve K -69087-72A224) Characteristics and range values Heater voltage, 6.3; plate voltage, 250; grid No. 3 voltage, 0; grid No. 2 voltage, 100; grid No. 1 voltage, -3 Minimum Heater current 0.275 Heater -cathode current with heater -cathode voltage of t 100 volts Plate current 2.3 Plate current for grid No. 1 voltage of -7.5 volts 2 Plate current for grid No. 3 voltage of -70 volts 150 Grid No. 2 current 0.60 Reverse grid No. 1 current Average 0.3 3.0 30 450 0.85 Maximum 0.325 amperes 5 microamperes 3.7 milliamperes 80 microamperes 750 microamperes 1.10 milliamperes 0.1 microamperes Plate resistance 1.0 . megohms Transconductance 1400 1650 1900 micromhos Typical operation -resistance -coupled amplifier Plate and grid No. 2 supply voltage 90 180 300 volts Plate load resistor 0.1 0.25 0.5 0.1 0.25 0.5 0.1 0.25 0.5 megohms Grid No. 1 resistor Grid No. 2 resistor 0.25 0.5 0.29 0.92 1 0.25 0.5 1.7 0.31 0.94 1 0.25 0.5 2.2 0.37 1.10 1 megohms 2.2 megohms Cathode resistor 880 1700 3800 800 1060 2180 530 860 1410 ohms Grid No. 2 bypass capacitor t . 0.085 0.045 0.03 0.09 0.06 0.04 0.09 0.06 0.05 uf Cathode bypass capacitor t . 7.4 4.5 2.4 8 6.6 3.8 10.9 7.4 5.8 uf Blocking capacitor t 0.016 0.005 0.002 0.015 0.004 0.002 0.016 0.004 0.002 uf Peak output voltage t 23 18 22 60 47 44 96 88 79 volts Voltage gain A 68 93 119 82 131 192 98 167 238 tThe cathode and grid No. 2 bypass capacitors and blocking capacitors have been chosen to give output voltages at 100 cycles per second (f1) which are equal to 0.7 of the mid -frequency value. For any other value of (f1), multiply the values of cathode bypass, grid No. 2 bypass, and blocking capacitors by 100/f1. IThis peak output voltage is obtained across the grid resistor of the following stage at any frequency within the flat region of the output vs frequency curve, and is for the condition where the signal level is adequate to swing the grid of the resistance coupled amplifier tube to the point where its grid starts to draw current. AAt an output voltage of 5 volts rms. GL -5693 DESCRIPTION AND RATING ETI-299 PAGE 1 5-49 PLIOTRON DESCRIPTION The GL -5693 is a sharp cut-off five -electrode, high vacuum tube for use as a high -gain, resistance coupled amplifier in industrial applications. A grid No. 1 resistor with a value as high as 40 megohms can be used with this tube depending upon the operating conditions as given on the curve "Operational Characteristics." In addition, the 5693 is characterized by uniformity and stability of characteristic, resistance to shock and vibration, and long life features especially desirable in in- dustrial service. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. Electrical Data Cathode-Indirectly heated Heater voltage (a -c or d -c) Heater current Direct interelectrode capacitances, with shell connected to cathode Grid to plate Input Output 6 3 5%* volts 0.3 ampere Minimum Average Maximum 0.005 uuf 4.8 5.3 5.8 uuf 5.6 6.2 6.8 uuf Mechanical Data Mounting position-Any Net weight, approximate 3 ounces GENERAL ELECTRIC GL -5693 ETI-299 PAGE 2 5-49 TECHNICAL INFORMATION (CONT'D) MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS Maximum ratings, absolute values D -c plate voltage 300 max volts D -c plate supply voltage 330 max volts D -c grid No. 3 (suppressor) voltage Negative bias value 0 min -100 max volts D -c grid No. 2 (screen) voltage. 125** max volts D -c grid No. 2 supply voltage 330 max volts Grid No. 1 (control -grid) voltage Negative bias range 1*** min to -50 max volts Negative peak value -50 max volts D -c cathode current 10 max milliamperes Plate dissipation 2 max watts Grid No. 2 dissipation 0.3 max watt Peak heater -cathode voltage Heater negative with respect to cathode 100 max volts Heater positive with respect to cathode 100 max volts Ambient temperature range -55 to +90 C *May deviate 10 per cent from rated value provided such deviation occurs for less than 2 per cent of the operating time. **The 5693 may be operated at a grid No. 2 voltage as high as the maximum rated grid No. 2 supply voltage (330 volts) when the grid No. 2 dissipation is not exceeded for any signal conditions and when a resistor is used in series with the grid No. 2 and its supply voltage. ***For resistance -coupled amplifier applications, the negative grid No. 1 bias may be as low as -0.5 volt. Maximum circuit value (see curve K -69087-72A224) Characteristics and range values Heater voltage, 6.3; plate voltage, 250; grid No. 3 voltage, 0; grid No. 2 voltage, 100; grid No. 1 voltage, -3 Minimum Heater current 0.275 Heater -cathode current with heater -cathode voltage of 1100 volts Plate current 2.3 Plate current for grid No. 1 voltage of -7.5 volts 2 Plate current for grid No. 3 voltage of -70 volts 150 Grid No. 2 current 0.60 Reverse grid No. 1 current Plate resistance 1.0 Average 0.3 3.0 30 450 0.85 Maximum 0.325 amperes 5 microamperes 3.7 milliamperes 80 microamperes 750 microamperes 1.10 milliamperes 0.1 microamperes megohms Transconductance Typical operation -resistance -coupled amplifier 1400 1650 1900 micromhos Plate and grid No. 2 supply voltage 90 180 300 volts Plate load resistor Grid No. 1 resistor Grid No. 2 resistor 0.1 0.25 0.25 0.5 0.29 0.92 0.5 0.1 0.25 1 0.25 0.5 1.7 0.31 0.94 0.5 0.1 0.25 1 0.25 0.5 2.2 0.37 1.10 0.5 megohms 1 megohms 2.2 megohms Cathode resistor 880 1700 3800 800 1060 2180 530 860 1410 ohms Grid No. 2 bypass capacitor t Cathode bypass capacitor t . Blocking capacitor t Peak output voltage 0.085 7.4 0.016 23 0.045 4.5 0.005 18 0.03 2.4 0.002 22 0.09 8 0.015 60 0.06 6.6 0.004 47 0.04 3.8 0.002 44 0.09 10.9 0.016 96 0.06 7.4 0.004 88 0.05 uf 5.8 uf 0.002 uf 79 volts Voltage gain A 68 93 119 82 131 192 98 167 238 tThe cathode and grid No. 2 bypass capacitors and blocking capacitors have been chosen to give output voltages at 100 cycles per second (f1) which are equal to 0.7 of the mid -frequency value. For any other value of (f1), multiply the values of cathode bypass, grid No. 2 bypass, and blocking capacitors by 100/f1. This peak output voltage is obtained across the grid resistor of the following stage at any frequency within the flat region of the output vs frequency curve, and is for the condition where the signal level is adequate to swing the grid of the resistance coupled amplifier tube to the point where its grid starts to draw current. AAt an output voltage of 5 volts rms. GL -5693 OPERATIONAL CHARACTERISTICS E,=6.3 VOLTS PLATE VOLTAGE = 300 GRID NO. 3 VOLTAGE =0 GL -5693 ETI-299 PAGE 3 5-49 CURVE 1 2 3 4 GRTD-NO.2 RESISTOR 0 MEG. 0.25 MEG. 0.5 MEG. 0.75 MEG. GRID -N0.2 SUPPLY VOLTAGE 100 300 300 300 CURVES BASED ON FOLLOWING VALUES: nIK = 300AAMP = 0. 1 gAMP EXPRESSING THESE VALUES AS A RATIO: .6.11( AIg, 300 OR 3000 0.1 FOR APPLICATIONS PERMITTING OTHER VALUES OF A NEW RATIO oF-A2KAIZ CAN PE CALCULATED. THE VALUES OF Rib AS READ FROM THE CURVE MUST BE MULTIPLIED BY A FACTOR WHICH IS THE QUOTIENT OF THE NEW RATIO DIVIDED BY THE OLD RATIO. FOR EXAMPLE . IF THE NEW RATIO IS 6000 THE MULTIPLYING FACTOR IS 6000/3000. OR 2. AND VALUES OF Rg, AS READ FROM THE CURVE ARE THEREFORE MULTIPLIED BY 2. NOTE: TRANSCONDUCTANCE CURVES WERE OBTAINED WITH GRID-NO.2 RESISTOR AND CATHODE RESISTOR SUITAPLY BYPASSED. 50 2500 TRANSCONDUCTANCE CURVES 10 40 0 2000 2 k0 30 0 0 1500 0 1000 20 411111110. 00 10 0 500 0 K -69087-72A224 2000 4000 6000 CATHODE RESISTOR IN OHMS 8000 8-26-48 GL -5693 ETI-299 PAGE 4 5-49 GL -5693 AVERAGE SUPPRESSOR CHARACTERISTICS E,=6.3 VOLTS PLATE VOLTAGE = 250 GRID NO. 1 VOLTAGE= -3 4 11 3 tee GL -5693 AVERAGE SUPPRESSOR CHARACTERISTICS E1=6.3 VOLTS PLATE VOLTAGE=250 GRID NO. 1 VOLTAGE= -3 90 2 2 Ec2 =75 NM IIMIMIENNESENIEllin 1 0 ioo 80 K -69087-72A229 60 40 GRID -N0.3 VOLTAGE IN VOLTS 60 20 0 8-26-48 11111N1o1m1:h1.1m24:o5m61il;l 0 11 100 80 60 40 20 GRID -N0.3 VOLTAGE IN VOLTS K -69087-72A230 8-26-48 GL -5693 AVERAGE PLATE CHARACTERISTICS PENTODE CONNECTION E,=6.3 VOLTS GRID NO. 2 VOLTAGE=100 GRID NO. 3 VOLTAGE=0 10 ME ME r . 111 ME EMMEMIMMIMMEMEMEMMEMMINIMMENEE MIMI= MMIUMMIMMUMNIM mm mmmmmmmm MMEMMOIMMOMMEMEMEMMEMMEMMEM MEMMEMMINIM P111.""'"- II!!!!: MEMMEMMI IIIII II ME 8 M 1 M M M Es I MEMIMMIMISMIMM MEMMUMEMMUMITOMMINIMMIIMMUMMIIMMEMEMEMMIMMEMMEMEMMEMEMMUMMEMEMINIMMEMMIXMIMMIMMIMEMINIMMEMMEMEM OM 1 MW= 4w- U 6 MmEuMiEWpAmReEEmMmEuMEmMmommEommomImMoMmUmMMuEmMmMuEMmEmMuEmMmEMoEmMmEoMMmEmMoEmEMMmEuMmEmMMoEmMmMoEMmMmEoNmMMmMuImImMuNmEmMmEMmEuMmMEmMmMomMmEuMm=II m MMOMMEMIMMIMMEMEMMOMMEMMOIMMEMMEM MMEM II -.m IIIMMUMMEMMOMMEMMINIMMIIIMMEMMEMEMEMM MUM ME MMIAMIMMEMMIIMIMMEMEMMEMEM MIIMEMIIIIMMIMMEMMEMEMMINIMMIUMMEMOMMMMEMMINIMMEMMEMEMMEMMEIUMMEMIIMEN =ME= 4 111, momusimmummommoommumm mommommmommummommommommommmmommommommumunnummummamms mu w= MEM mm N mm MMEMEMIIMMEMMEM IMMEMMINIMMEMEMMEMMOMMEMMEMMIMMIUMMEMOMMOMMEMMEMMEMMIMMMEMMIIMMEMEMEM NOMUMEM IIIME I AIIIIMmiliii===.2nETmwom MMMMMMMMMMMMM IMMEMMINUMMIUMIMMEMMEMEMMOIMMEMMEMMEMIIMMUMMVIMMEMMEMEMMEM MmUiOlMPmAmImMMoUmMoBEmImIoMMmEmMmMEoMmEmMMeEmMmMUoNmNmOMuMmEmMEaMsEMtsMuMMmMuMmMMuMmMmMMoMmMuMMmMmMommmmiolmmmmmmliommmmimommR6mmummimoam'ma=o=m=m==m=i=n==o"mMr_IO 2 IV A gamin mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm mommonmommommummulummommommmommommommi m ME iilii! E MEE I!:!li::iiiiiiiiiiii MI 1M UrAMMIEMMEMEMEEMMEMENOMMIIMMEMMEMMEEMM ... MEMEMEMMEMEMEEMMMEMMEEMMEMEMEMMEMMEMMEMMEMEEME MEM 0 K -69087-72A231 100 200 300 PLATE VOLTAGE IN VOLTS 400 500 5-17-48 GL -5693 AVERAGE CHARACTERISTICS , 4 RRRR n!wa...121: tt Gno 12 _1 3 z = a 10 6 = 8O 8 orarence:::.: 6 6 e 10 .. m.: 4 -.1.111 8 ulltr. cL 2 GL -5693 ETI-299 PAGE 5 5-49 2500 ce 2000 O -J 2 z 1500 -z z cc= 1000 z cc to" 0 500 r_-1 10 -43 K -69087-72A232 -6 CONTROL -GRID VOLTAGE IN VOLTS 0 5-17-48 GL -5693 AVERAGE CHARACTERISTICS PENTODE CONNECTION E1=6.3 VOLTS PLATE VOLTAGE=250 SUPPRESSOR VOLTAGE -0 SCREEN VOLTAGE=100 muriummomm umwinsn 11:11.. 0 1 MIRMERNEMEMMME INIMEREMINIMMUMMOUWZOMEMS MMMMM MEMMEIMaMM n .,5 rwwuw'oppArmmrnsmI==I ..III mom 1 p A 11 1 1 II' 11 11111 1 A 1 1 a1111 1111111111 ...BM MIME. aMnEM1.41M1M1. !I:ANNEXE! -10 -8 K -69087-72A234 11.-a ....0111111 -6 - -4 CONTROL-GRID VOLTAGE IN VOLTS wpm= m. MMMMMMMMMMMMMMM Immommilmpmumumm ommumm -2 C, 5-17.48 GL -5693 ETI-299 PAGE 6 5-49 GL -5693 AVERAGE CHARACTERISTICS 3000 2000 6 z 8 O Zfn 1000 N-15119AZ 5-49 (10M) Filing No. 8850 10 -8 -6 -4 -2 0 CONTROL -GRID VOLTAGE IN VOLTS K -69087-72A233 OUTLINE GL -5693 PLIOTRON isu 132 -"I MAX. itI5-17-48 BASING DIAGRAM 0 G 3e K o G2 tz)0 1/61 0ew 8N SMALL -WAFER OCTAL 8 -PIN BASE NO. 138-21 PIN 1: PIN 2: PIN 3: PIN 4: SHELL HEATER GRID NO. 3 GRID NO. 1 Electronics Department PIN 5: PIN 6: PIN 7: PIN 8: CATHODE GRID NO. 2 HEATER PLATE 5-17-48 GENERAL ELECTRIC Schenectady, N. Y. 0L -1000T DESCRIPTION AND RATING ETI-314 PAGE 1 8-50 PLIOTRON DESCRIPTION The GL -1000T is a three -electrode tube designed for use as a Class B audio -frequency power amplifier and modulator or as a Class C radio -frequency power amplifier and oscillator. The anode is capable of dissipating 1000 watts. Forced -air cooling of the envelope is required under all conditions of operation and forced -air cooling of the seals, through the tube in the base, is necessary when the GL -1000T is operated at maximum conditions. The cathode is a thoriated-tungsten filament. Maximum ratings apply up to a frequency of 50 megacycles. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Filament voltage Filament current 7.5 volts 17.0 amperes Amplification factor Direct interelectrode capacitances Grid -plate Grid -filament Plate -filament Transconductance, In = 750 ma, Eb =6000, E, = -62 35 5.1 uuf 9.3 uuf 0 5 uuf 9050 micromhos Mechanical Data Mounting position vertical, base down Type of cooling forced air Forced -air cooling of the seals is necessary under maximum conditions of operation. Each seal requires approximately 2 cubic feet per minute. The bulb must be cooled with air equivalent to that supplied by an 8 -inch electric fan 12 inches from the bulb. Net weight, approximate 1.25 pounds GENERAL ELECTRIC GL -1000T En -314 PAGE 2 8 -50 TECHNICAL INFORMATION (CONT'D) MAXIMUM RATINGS AND TYPICAL OPERATION CONDITIONS AUDIO -FREQUENCY POWER AMPLIFIER AND MODULATOR-CLASS B Maximum ratings, absolute values D -c plate voltage Maximum signal d -c plate current Plate dissipation* Typical Operation Unless otherwise specified, values are for two tubes D -c plate voltage 4000 D -c grid voltage, approximate -70 Peak a -f grid input voltage 490 Zero Signal d -c plate current .300 Maximum signal d -c plate current 1.25 Maximum signal driving power, approximate 28 Effective load resistance, plate to plate 6350 Maximum signal power output, approximate 3000 7500 max volts 750 max milliamperes 1000 max watts 5000 -105 530 .240 1.14 31 9250 3700 6000 volts -135 volts 600 volts .200 amperes 1.11 amperes 35 watts 12200 ohms 4600 watts RADIO -FREQUENCY POWER AMPLIFIER AND OSCILLATOR-CLASS C TELEGRAPHY Key -down conditions per tube without modulation** Maximum ratings, absolute values D -c plate voltage D -c plate current D -c grid current Plate dissipation Typical operation D -c plate voltage D -c grid voltage Peak r -f grid input voltage, approximate D -c plate current D -c grid current Plate dissipation Driving power, approximate Plate input Power output, approximate 3000 -150 350 750 90 900 30 2250 1350 4000 -150 365 713 100 1000 33 2850 1850 7500 max volts 750 max milliamperes 125 max milliamperes 1000 max watts 5000 -225 420 667 87 1000 33 3333 2333 6000 volts -350 volts 610 volts 667 milliamperes 110 milliamperes 1000 watts 60 watts 4000 watts 3000 watts *Averaged over any audio -frequency cycle of sine -wave form. **Modulation essentially negative may be used if the positive peak of the envelope does not exceed 115 per cent of the carrier conditions. GL -1000T DRIVING POWER VS POWER OUTPUT PLATE VOLTAGE = 4000 1 Inn 6 MEW uniqmporiem ' mmmmm mmmmmm mar 50 mmm m121m 1 /MU INN 40 1/IM a /11 FAA 1 MAIMED.AINEWarrourgrumn.sm FIMIF/S :CCCAVMEMF 3Q GpGGG 1 gmAlair.T paw'nMAME, ICIPAI 20 4.....G ..11MMIMARYM IMEMEMMUMM. /A "m!Airlitli"3" WWOM=W IFII m norm a 111....1 10 mm = m 111 iMpASPAII MN MEN =in 0 K -69087-72A336 1 000 2000 POWER OUTPUT IN WATTS IMMEAMMOM MMMMMMMM 3000 1-5.50 GL -1000T DRIVING POWER VS POWER OUTPUT PLATE VOLTAGE = 5000 GO MEM. MESE 11 50 40 1 30 mImmmi LIME...... ALONSIIIA ammo, 11:1 20 se amp. MEI 10 .MLAIHMSEIPA AAA PP AWN.' A INPaME! .,Orm nPrs5irm.Jararm.., Lam - MEMS AA 'V A 1000 ors POWER OUTPUT IN WATTS K -69087-72A337 11 11 simemporrimmi MENNEMEMENEM 3000 1-5-50 GL -1000T DRIVING POWER VS POWER OUTPUT PLATE VOLTAGE = 6000 60 :r 50 40 Lim.= M M nmesimmspmamm.mmard NEmmMooESwmES" ENENSANNNI M MEM INNEN mom KornMI NI MMENEMEESE 1 INU 30 IMSIMMMMI mom mmml mmi 20 ammmoom U. rI A V ILMENCI : 1 A IEmu °1111 MMEENEMM mom FERNNE I:iii -mamNEmMa ,411mmum Cr Immetamacma MMMMMMM Im."2 IINNEIL ENCIIII 'PENAIMANASESI IENNMENNI IIINEENEEP 10 MENUS MMMMMM MEM : -.ALAMEIN/Una M IN MENNEN ft. I. IMMENSE: O 1000 2000 3000 POWER OUTPUT IN WATTS K -69087-72A338 1-5-50 GL -1000T ETI-314 PAGE 3 8-50 GL -1000T ETI.314 PAGE 4 8-50 GL -1000T CHARACTERISTIC 1 .. IIIMMEMENNERMENMENNEN E NEMENEMMNEEMEMMEMMNEm WIMMEMEMMEMIMENMMER MNMMMNUMEONEMNMNEMEEMEMUEMEMEMEMNEME EMEEEENN I 800 MNOENNEMSMUMENEPMNEMO EENNONNNIMMUmME. mMMoEMMmM NEIMERxRNE MEEMMMEEMENMMEEMMMEEMMEMMMmEM=MIEMMMEEEMMNEUNMEESNNINMNEERENMMMEEIMNNNN MEENMNNEEMNNENUEMMMNEME F 'i`iIl wommumma uI mmw,mmem MEM EMI= MEMEMEMSE MMMMMM =111111111111111MMEMMEMMUMMINIMENI NM II 600 1MM1EE11MM1 mom A 1 SflII 1 IMM11.11 111010111.115119f114011 I IIIMMEM....-9114111/01 II "IlltIrElMno...INIEnid Mall NEEN MEENNNMEMNMOIEMMMMIEINNMEMMIEEMMNEIMMIEEIMNMENEMUUMMMMUEEMMOMEIMIIINMME1EI1MM1OM1ENME1SR=SM=EE=II=M=EE=MN=IE=N= uHIFs 400 MMNEENMM==fESVIEINEIEEMMNWZMZM.IT-1PEN7lIMMb4TwPMN,EIO-EMGZMrA=EI,.MM_NORMnZ.ri..-iMmfMMmgEtE%N.MNiMOVo.E..ME:MMM:M;.!EInZN'NMSESIUNWN,MR4.IEa.NMI_-EIMEmNINsMINI4EEEN=WINENUPI=MNENIIMlNl NEMMBIEIMN SMEMMSMEM IUMNMEMENNIMINOMMEM EIME millo. EmImiMlkA..ArIaNI.P"IIm'I1Mw1?P1mM1-.nE.4.I.R:.M21---11E1PNMP.mSMmUr.iEltn-im-ioi"`mmIim1Mmi1oo1Mm0ofI.t1.i.1.1_l.1!.4ri1r1.omo1tm1V1rp1m1.2m1;1.:-i91;u1.:11.m1M.0M.oMnPi.WgNcMM-i.MfftIl.iMt=oP.m7Iw11EA1A1,I1M1_1M1-=1U1ItM:mMiMEUPeUIMMMmANMEEmIUMIZIMEuI-MIEiMlAAMliMmIMIEMNMiMaMMIIzMUEN.MM_EMSE_NSMU_MEMeMMIlEIMEiIuMMSIMmMEMMMiMnMEuMIMNmMMOmMWaMjMaNMli NEMIMM-MMEIRoga.WAN MMMMM EN.Z..T.M2EMMEMM=nr.. MMM V! M omomM.-,72PENESIMAImmmo.Z=MISIERMENEM ...my 200 MMmMMMIiAEEAIMrNMNINImCSNIiiPMIIM.AEEPMMN.ME.ELMiNM.SoZgEININMUMmEMEEEENFMGMIEEMZISnNN.IAPPPI1IEMMM=NEMfIM2.MtNmMZ=IEIM5WNNOIMIIMMIEMaUMMMWlMEMElO-EEMiNNNmMMPS=EETMMMMIMIEMSEM.NENSM..EEIE-GMER..IM...PMM-I.EMRMLMU=TIMNULPN=NoZSMMaWEIMANMUMm.NEMlEiMmgZiN.=-l.N.m'mE4MiIMM=MEEvEMMmaMEuEr.MNm.MM.UuIi.EmTmIgRaNE=nMiMMTMummmEInNm.wEgm=M.79M21MM..E1.EaM1.MMEmMEMIaMRMMIM-MEMIMNENMiOONIMmNNMNMmEEEMMMMMMEEEM NREPEMP.p-koRM n5mAIIP.Mms.--. NOMWEME MMMMM 1.02TMEMMEMI=NEM.ggnmEMMEMMEM§MENE. -OREM= rimaimummiummEmmm =TIP MMMMMMMMM EmmESME --""mmIMMEM ''' 8 =MEM MW-E,A41M1P11=1i1 ne-MMiInUaMmiMlUlM,m1111m111m111iiiiEWMmMAMEME.LTF.M1M1U1N1IMnUiM=EMME.MmUMKEIRMEMMUEmMiIllil.i.l.-lIiIMMEMMEmMiM.O3M7M:ImlEmMMIMMMOMUMMMMEEMMEOM= 0 n-0g.4g.m.1l,b4iz4b71m1r.1-m1!e'Mm1M6m#U1o,M=sAMMIIlNMlIl.aNeagor*n._.a=n=m=Miq.UZ=1I,=6M"=-!M;=M-=IM!MmM!M.MnI,MoE=EiM_MU_EMAE-.O.NMF.I.m=II"iIM.I=wME_McM1p-.El.mEi.tDn.nImn.mMm.uiMm.Irm.MimMEemFMsMNcIIMmNIo6mWMEIiMMPn.MInOENoMMMmVEE_mMTNmmHIinInMMiEIaISmINM.Ei-Rm.m1u.m-Mm=MiiEm1NmR1oEm1M1M::M:E EEIMMMIMNMUIMINNMI.MU.MM.MVEIMNMMEIENMEMIMMMEIIENNmNEm-ZoE-=mE.iM..RMZ.E.RMMPEM.oIME..UMINENIM.M.I.Z:-R=O.PMPIMO.lEISoMo.M.I.II-.NI--EI.-NI47Io1M2.iE:,iM7PiM2Ei4ErS.m.E"0-E.1-M-12NL12_I1ME=INN1XEM.IMM7EII=mIITEIMEGMERME=INMRMNMEEuIIMmINT-NMImIEMoINMMSN.ISZMEI..MN-MIE1TN9SEE1ES9IEI1MNM1S1EE1EM1NMI1EM1E1=M1=XE1 =M - 200 =NM um MMMMMMMMNMMMMMEUMEE.NN.IUIMMMMUMMMUElEMEMiMMEmRIUmNEEuMMEMm.MMMm.NEUEu.ONmN.MMmUI.EoEM.MmNM.UMmM.NMEuENEmMN=E-NEE-MNMS.MUErMImEM.MoSIMZMmMM.EmMMIiMIEMNEmENrMSM.EEnEM,EENN.E,NmM.MMIMm.EEiN.MEEMs.MMM.mENMMEMIoEMIEMmWMEiMNMMMEM=.EMIMWN.MEEM.Mm:MMEIi.o.lNEEE-Nf..tES.M.UT-MMMaIEMloIm_MSmMMM.EMM.M.N-IMM.E--EzMEENg.mM_.MmEIOrmEMoI$.oI1MEmmEZmmNoEwNr=omEmiMImEnIuEnMmMiNEmmMoEMmmMoOEMmEm II - 4000 MEER MMMMMMMM MUM IMMENE MMMMM NEMESES= 1111M11111111111.11111111MIMEINIM MMMMMMM MEM= =MINN MEMEMMINMENIMEMEMMEMMUM 111 MMMMMMMMMM 1M11M11M1M11M1MMIMMMMEMIMMEMMMNMIMMMMMEMMMMEMMEENSEEMMINMSUONINMSMEINEIMMEMNIN1IU1MMMIETIMINIMMEMMEMMUMMOMM 2000 4000 6000 8000 K -69087-72A335 PLATE VOLTAGE IN VOLTS 1-5-50 OUTLINE GL -1000T (563.,005. rl PLATE TERMINAL CAP NO. 4004 C 5g MA)C---. 814 DM. ' GRID TERMINAL CAP NO. 4005 C // .563.t005" > 31" MAX. 2 BASE NO. 5004 B 12r-s7e r 34 8-50 (i1m) N15163AZ FILAMENT TERMINAL FILAMENT g)ONINETED INTERNACLLY TO PIN NO.4) FILAMENT (CONNECTED INTERNALLY TO PIN NO. 2) FILAMENT TERMINAL 1-5-50 Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. ET -T510 Electronics Department GENERAL ELECTRIC Pliotron 5659 --Preliminary Technical Information The 5659 is a beam power amplifier pentode similar to the 12A6 designed for reliable performance under conditions of severe vibration and intermittent operation. TECHNICAL INFORMATION GENERAL Electrical Data Cathode - Indirectly Heated Heater Voltage (A -C or D -C) Heater Current 1206 Volts 0,150 Ampere Mechanical Data Envelope - MT -8 Base - Small Wafer Octal 7 -Pin Maximum Diameter Maximum Overall Length Maximum Seated Height 1 5/16 Inches 3 1/4 Inches 2 1/16 Inches MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS Maximum Ratings, Design Center Plate Voltage Screen Voltage Plate Dissipation Screen Dissipation 250 Volts 250 Volts 7,5 Watts 1.5 Watts Typical Operation Class Al Amplifier Heater Voltage Plate Voltage Screen Voltage Grid Voltage** Peak A -F Signal Voltage Transconductance Plate Resistance, approximate 'Zero Signal Plate Current Zero Signal Screen Current, Nominal Maximum -Signal Plate Current Maximum -Signal Screen Current, Nominal Load Resistance Total Harmonic Distortion Power Output 12.6 250 250 -12.5 12.5 3000 70000 30 3.5 32 5.5 7500 7 3.4 Volts Volts Volts Volts Volts Micromhos Ohms Milliamperes Milliamperes Milliamperes Milliamperes Ohms Per Cent Watts -2- ** The D -C resistance in the grid circuit, under rated maximum conditions, should not exceed 0.5 megohm for self -bias operation and 0.1 megohm for fixed bias operation. *** HMS voltage measured across a load resistor of 2,000 ohms when tube is vibrated with a total sinusoidal motion of .08 inches at 25 cycles per second. Grid voltage = -22 volts. Average output is less than value shown. TERMINAL CONNECTIONS Pin 1 - Shell Pin 2 - Heater Pin 3 - Plate Pin 4 - Grid #2 Pin 5 - Grid #1 Pin 7 - Heater Pin 8 - Cathode and beam plates BASING DIAGRAM 7AG ET -T511 Electronics Department GENERAL ELECTRIC Pliotron 5660 --Preliminary Technical Information The 5660 is a duplex -diode pentode similar to the 12C8 designed for reliable performance under conditions of severe vibration and intermittent operation. TECHNICAL INFORMATION GENERAL Electrical Data Cathode - Indirectly Heated Heater Voltage (A -C or D -C) Heater Current 12.6 Volts 0.150 Ampere Mechanical Data Envelope - MP -8 Cap - Miniature Base Small Wafer Octal 8 -Pin Mounting Position - Any Direct Interelectrode Capacitances* Grid to Plate Input Output 0.005 Maximum uuf 6 uuf 9 uuf * Shell connected to cathode. MAXIMUM RATINGS AND TYPICAL OPERATING CONDITIONS Maximum Ratings, Design Center Plate Voltage Screen Supply Voltage Screen Voltage Plate Dissipation Screen Dissipation Minimum External Grid Bias Voltage Maximum Diode Current per Plate for Continuous Operation 300 300 125 2.25 0.3 0 1.0 Volts Volts Volts Watts Watts Volts Milliamperes Typical Operation Pentode Section: Class Al Amplifier Heater Voltage Plate Voltage Screen Voltage Grid Voltage Plate Resistance, approximate 12,6 250 125 -3 0.6 1325 Volts Volts Volts Volts Megohm Micromhos Typical Operation Pentode Section: Class Al Amplifier Plate Current Screen Current Grid Bias For Cathode Current Cut -Off, approximate Vibration Output, maximum** 10 Milliamperes 2.3 Milliamperes -21 Volts 25 Millivolts Diode Sections: Minimum Diode Current per Plate With 10 Volts D -C Applied 0.8 Milliamperes * * R voltage measured across a load resistor of 10,000 ohms when tube is vibrated with a total sinusoidal motion of .08 inches at 25 cycles per second. Average output is less than value shown. TEPMINAL CONNECTIONS Pin 1 - Shell Pin 2 - Heater pin 3 - Pentode Plate Pin 4 - Diode Plate #2 Pin 5 - Diode Plate #1 Pin 6 - Grid #2 Pin 7 - Heater Pin 8 - Cathode and Grid #3 Cap Grid #1 RASM DIAGRAM 8E ET -T512 Electronics Department GENERAL ELECTRIC Pliotron 5661 --Preliminary Technical Information The 5661 is a voltage amplifier pentode similar to the 12SK7 designed for reliable performance under conditions of severe vibration and intermittent operation* TECHNICAL INFORMATION GENERAL Electrical Data Cathode - Indirectly Heated Heater Voltage (A -C or D -C) Heater Current 12.6 Volts 0.150 Ampere Mechanical Data Envelope - NT -8 Base - Small Wafer Octal 8 -Pin Mounting Position - Any Direct Interelectrode Capacitances* Grid to Plate Input Output 0003 Maximum uuf 6.0 uuf 7,0 uuf * Shell connected to cathode. MAXEOM RATINGS AND TYPICAL OPERATING CONDITIONS Maximum Ratings, Design Center Plate Voltage Screen Supply Voltage Screen Voltage Plate Dissipation Screen Dissipation Minimum External Control Grid Bias Voltage Typical Operation Class Al Amplifier Heater Voltage 12.6 Plate Voltage 100 Screen Voltage 100 Control Grid Voltage -1 Suppressor - Connected to Cathode at Socket Plate Resistance, approximate 0,12 Transconductance 2350 Control Grid Voltage for Transcon- ductance = 10, approximate -35 300 Volts 300 Volts 125 Volts 4.0 Watts 0,4 Watts 0 Volts 12.6 250 100 -3 0.8 2000 -35 Volts Volts Volts Volts Megohm Micromhos Volts -2 - Typical Operation Class Al Amplifier (Cont'd) Plate Current Screen Current Vibration Output, maximum** 13 9,2 Milliamperes 4 2,6 Milliamperes --- 15 Millivolts ** RMS voltage measured across a load resistor of 2,000 ohms when tube is vibrated with a total sinusoidal motion of .08 inches at 25 cycles per second, Average output is less than value shown. TERMINAL CONNECTIONS Pin 1 - Shell and internal shield Pin 2 - Heater Pin 3 - Grid W3 Pin 4 - Grid #1 Pin 5 - Cathode Pin 6 - Grid #2 Pin 7 - Heater Pin 8 - Plate BASING DIAGRAM APPLICATION DATA ETI-176A PAGE 1 12-50 GENERAL ELECTRIC GLOW TUBES Supersedes ETI-776 dated 4-45 ETI.176A PAGE 2 12.50 DESCRIPTION A glow tube is a cold -cathode, gas -discharge tube in which no means is provided for controlling the unidirectional current flow. (NEMA definition). This type of tube is also known as a voltage -regulator tube, a name which describes its principal appli- cation. Fundamentally, a glow tube consists of two elec- trodes, an anode and a cold cathode, in a partial atmosphere of inert gas or vapor. The emission is obtained from the cold cathode by virtue of a potential gradient at the cathode surface. This gradient literally pulls electrons out of the cathode. For this reason cathodes are sometimes coated with some material which has a low work function so that electrons are given off with comparative ease. GENERAL OPERATION Two types of discharge are possible in a glow tube. A glow discharge, which is a uniform glow covering all or part of the cathode surface, will occur when the current carried by the tube is low. Under these conditions the tube drop is essentially independent of the current. This is the condition under which glow tubes normally operate. The exact voltage drop across the tube depends upon the electrode spacing and the type and amount of gas used. If the current through the tube is increased be- yond a certain point the tube will go into a so-called arc discharge. Under these conditions a cathode spot rather than a uniform cathode glow appears on the cathode and the tube drop decreases to a rather low value (10-20 volts). Although some glow tubes are designed to operate as arc -discharge tubes, the majority of glow tubes must not be operated so that an arc discharge takes place, as the life of the tube will be materially shortened. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Tube Type Number Type of voltage -regulator tube Cathode Maximum over-all length Maximum seated height Maximum diameter Base Net weight, approx. Shipping weight, approx GL -0A3, GL -0B3 GL -0C3, GL -0D3 Glow discharge Cold type 4% inches 3946 inches 194 inches Small shell octal 6 -pin 2 ounces 3 pounds GL -874 Glow discharge Cold type 5% inches 4% inches 2146 inches Medium 4 -pin bayonet 2 ounces 3 pounds MAXIMUM RATINGS TUBE TYPE NUMBER GL -0A3 GL -0B3 GL -0C3 GL -0D3 GL -874 Min Bogey Max Min Bogey Max Min Bogey Max Min Bogey Max Min Bogey Max Electrical Data D -c anode -supply voltage* 105 D -c operating voltage 130 133 - 185 - -130 90 volts volts Anode voltage drop 68 75 85 77 90 104 103 108 116 142 153 165 volts - - - - Anode breakdown voltage . . -100 105 - 105 130 - 115 133 - 160 185 - 115 130 volts Regulation 5 6.5 5 9 2 4 4 5.5 7 volts Mechanical Data Mounting position any Net weight, maximum 1.3 1.3 1.3 1.3 1.3 ounces Maximum Ratings, Absolute Values Maximum average starting current 100 Maximum averaging time 10 D -c Cathode Current Maximum 40 Minimum 5 Maximum frequency. Ambient temperature limits -55 to +90 100 10 30 5 0 -55 to +90 100 10 40 5 0 -55 to +90 100 10 40 S 0 -55 to +90 50 10 -55 to +90 * To assure starting throughout tube life not less than the specified supply voltage should be provided. t C operation only. milliamperes seconds milliamperes milliamperes DEFINITIONS OF RATINGS ETI-176A PAGE 3 12.50 D -c Anode Supply Voltage, Minimum This is the minimum value of voltage that the voltage supply must be capable of applying to the glow tube. D -c Operating Current These values of maximum and minimum current indicate the range over which the glow tube will operate satisfactorily. Operation below the minimum current will cause erratic regulation and operation above maximum current will result in short life and erratic regulation. Regulation The regulation voltage is the maximum variation in voltage drop across the glow tube. It is calculated as the difference between the voltage drop obtained at the maximum current and the voltage drop obtained at the minimum current. Ambient Temperature Range This temperature range indicates the maximum and minimum temperatures at which satisfactory operation may be obtained. *OUTLINE GL -0A3, OB3, 0C3, OD3 rg-IF6- "MAX. DIA. OUTLINE GL -874 GLOW TUBE Erg MAX. DIA. 4-1 MAX B K-8065597 *Revised SMALL -SHELL OCTAL 6 -PIN BASE NO. B6-3 4-3" 4 MAX. BASE NO. A4-10 11-22-50 K-8065596 *Revised CATHODE TERMINAL CONNECT TO PIN NO. 2 CONNECT TO PIN NO. 4 ANODE TERMINAL 11-22-50 ETI.176A PAGE 4 12-50 APPLICATION CIRCUITS # The most common use of the glow tube is as a voltage regulating device. fie 1 I JUMPER A -C 60 K-8639684 IISERIES RESISTANCE Fig. 1-Voltage-Regulated Power Supply Circuit 9-25-44 *Most glow tubes are provided with a jumper wire connected internally. This is usually employed as a switch, and is wired in series with the primary of the transformer supplying power to the glow tube. When the tube is removed from the socket the power supply circuit is automatically shut off. Fig. 1 above illustrates a voltage -regulated power supply circuit incorporating a glow tube as a voltage stabilizer. Such a circuit is an inexpensive means of provid- ing a regulated voltage within the capabilities of a tube for such applications. The series resistance must be of a value that will limit the current through the glow tube to the maximum rated current. It is also desirable to furnish a high enough voltage from the d -c supply so that the current through the glow tube does not drop below the minimum rating. Glow tubes may be used in series to provide higher regulated voltages than are available from one tube. These tubes need not be the same type, the only requirement being that the current must be limited so that it falls within the operating range of the combination. For example, if a GL 0A3 and a GL -0B3 are used in series, the current must be limited to 30 milliamperes maximum. Operation of glow tubes in parallel is not recom- mended. A second application of the glow tube is the relaxation oscillator illustrated in Fig. 2. GLOW TUBE RESISTOR D.C. VOLTAGE K-8639685 Fig. 2-Relaxation Oscillator Circuit 9-25-44 In this type of circuit, a current charges a capacitor. In parallel with the capacitor is a glow tube, which will break down when the voltage on the capacitor reaches the voltage breakdown point of the glow tube. The frequency of this action may be varied by changing the capacitance or type of glow tube. #Circuits shown in ETI-176 are examples of possible tube applications and the description and illustration of them does not convey to the purchaser of tubes any license under patent rights of General Electric Company. INSTALLATION A ND OPERATION Sufficient resistance must always be used in series with each of these tubes to limit the current through the tube to the maximum rated value under continuous (steady state) operating conditions. During the interval of 5 to 10 seconds which may be required for the regulated tubes in associated equipment to warm up and draw plate current, a maximum current of 100 milliamperes is permissible provided each such starting period is followed by a steady-state operating period of at least several minutes. Unless this pre - caution is observed,tube performance will be impaired. In voltage -regulator tubes of the glow -discharge type, regulation is somewhat dependent on past operating conditions. For example, the regulation value of a tube operated for a protracted period at 5 milliamperes and then changed to 35 millliamperes may be somewhat different from the value that will be obtained after a long period of operation at 35 milliamperes. Likewise, the regulation value may change somewhat after a long idle period. Tube Divisions, Electronics Department 12 -50 (115.1) GENERAL ELECTRIC Schenectady, N. Y. GL -0A2 DESCRIPTION AND RATING ETI-305 PAGE 1 10-49 DESCRIPTION GLOW TUBE The GL -0A2 is a miniature two -electrode inert -gas -filled cold -cathode tube for use as a voltage regulator. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data D -c Anode -supply Voltage* Anode voltage drop Anode breakdown voltage Shunt capacitor Regulation Minimum 185 140 Bogey . . 151 156 2 Maximum 168 185 0.1 6 volts volts volts microfarad volts Mechanical Data Mounting position-any Net weight, maximum 0.3 Ounce *To assure starting throughout tube life not less than the specified supply voltage should be provided. GENERAL ha ELECTRIC GL -0A2 ETI-305 PAGE 2 10-49 TECHNICAL INFORMATION (CONT'D) MAXIMUM RATINGS, Absolute Values Maximum average starting current Maximum averaging time D -c cathode current Maximum Minimum Maximum frequency Ambient temperature limits 75 milliamperes 10 seconds 30 milliamperes 5 milliamperes 0 cycles per second -55 to +90 C APPLICATION NOTES Pw The base of the GL -0A2 fits the miniature 7 -pin socket which may be mounted to hold the tube in any position. No connection'should be made to pins 3 and 6 which extend into the interior of the tube since any potentials applied to these pins may cause erratic tube performance. The three pin terminals for the cathode and the two for the anode offer the designer several different possibilities for connection so as to provide protection for the associated components in case the regulator tube is removed from its socket. Sufficient resistance must always be used in series with the GL -0A2 to limit the current through the tube. The value for the series resistor is dependent on the maximum anode -supply voltage and the ratio of the current through the load to the operating current of the GL -0A2, and should be chosen to limit the operating current through the tube to 30 milliamperes at all times after the starting period. The maximum load current that can be regulated is determined by the minimum and maximum values of the supply voltage. The value of series resistor for the maximum supply voltage should be calculated as indicated above. The user should then determine whether this value will permit adequate starting voltage when the supply voltage falls to its minimum value. If adequate starting voltage is not obtained, a new load current of lower value must be used and the calculations repeated. It will be apparent from such calculations that the higher the minimum supply voltage and the smaller the difference between its minimum and maximum values, the higher will be the load current that can be regulated. In order to handle more load current, two or more GL-0A2's may be operated in parallel, but such parallel operation requires that a resistor be used in series with each regulator tube in order to equalize division of the current between the paralleled tubes. Approximately a 100 -ohm resistor for each tube should be used. The disadvantage of this method is that the use of resistors impairs the regulation which can be obtained. When equipment utilizing the GL -0A2 is turned on, a starting current in excess of the average operating current is permissible as indicated under Maximum Ratings. When the tube is subjected to such high starting currents, the regulated voltage may require up to 20 minutes to drop to its normal operating value. This performance is characteristic of voltage -regulator tubes of the glow -discharge type. Similarly, the regulation voltage is affected by changes in current within the operating current range. For example, the regulation value of a tube operated for a protracted period at 5 milliamperes and then changed to 25 milliamperes, may be somewhat different from the value that will be obtained after a long period of operation at 25 milliamperes. Likewise, the regulation value may change somewhat after a long idle period. If the associated circuit has a capacitor in shunt with the GL -0A2, the capacitor should be limited in value to 0.1 microfarad. A larger value may cause the regulator tube to oscillate and thus give unstable regulation performance. TYPICAL CIRCUITS FOR GLOW TUBE GL -0A2 GL -0A2 ETI-305 PAGE 3 10-49 SERIES RESISTOR FILTER (D -C VOLTAGE SUPPLY) GL - 0A2 OR OB2 -FB REGULATED SUPPLY VOLTAGE TO LOAD TYPE VOLTS (APPROX) 0A2 150 082 I08 CIRCUIT TO PROVIDE REGULATED SUPPLY VOLTAGE OF APPROXIMATELY 150 OR 108 VOLTS TO LOAD. REMOVAL OF TUBE FROM SOCKET REMOVES VOLTAGE FROM LOAD. K -69087-72A280 4-5-49 RSEESRIISETSOR GL 042 OR OB2 TO CATHODE OF TUBE -C BIAS SUPPLY +-BC + REGULATED BIAS VOLTAGE TYPE VOLTS (APPROX) 0A2 150 OB2 - 108 TO GRID OF TUBE CIRCUIT FOR BIAS -SUPPLY REGULATION. REMOVAL OF TUBE FROM SOCKET OPENS B -SUPPLY CIRCUIT OF REGULATED TUBES. K -69087-72A282 4-6-49 GL - SERIES RESISTOR 0A2 OR 0132 +-4-1--M/V0--- 0 +82 TO FILTER (D -C VOLTAGE SUPPLY) NNW TYPE 0A2 082 + s I t vocrs TYPE I APPROX 0A2 150 082 108 VOLTS APPROX 300 216 -B REGULATED SUPPLY VOLTAGE TO LOAD CIRCUIT USING TWO 0A2'S OR TWO 082'S TO PROVIDE REGULATED SUPPLY VOLTAGES OF APPROXIMATELY 300 OR 216 VOLTS AND 150 OR 108 VOLTS TO LOAD. SOCKET CONNECTIONS ARE SO MADE THAT VOLTAGE ON LOAD IS REMOVED WHEN EITHER TUBE IS TAKEN FROM ITS SOCKET. K -69087-72A281 4-6-49 GL -0A2 ETI-305 PAGE 4 10-49 285" MAX. OUTLINE GLOW TUBE GL -0A2 3., MAX. 218 MAX. CATHODE MINIATURE BUTTON 7 -PIN BASE, E7- I ANODE DO NOTI USE DOICNOT USE CATHODE ANODE CATHODE BASING DIAGRAM N15146AZ 4-6-49 10-49 (IOM) FilingNo..8850 Tube Divisions, Electronics Department GENERAL ha ELECTRIC Schenectady, N. Y. GL -062 DESCRIPTION AND RATING ETI-306 PAGE 1 1 0-49 GLOW TUBE DESCRIPTION The GL -0B2 is a miniature two -electrode inert -gas -filled cold -cathode tube for use as a voltage regulator. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data D -c anode -supply voltage* Anode voltage drop Anode breakdown voltage Shunt capacitor Regulation Minimum 133 101 Bogey 108 115 1 Maximum 114 133 0.1 4 volts volts volts microfarad volts Mechanical Data Mounting position-any Net weight, maximum 0.3 ounce *To assure starting throughout tube life not less than the specified supply voltage should be provided. GENERAL ELECTRIC GL -062 ETI-306 PAGE 2 10-49 TECHNICAL INFORMATION (CONT'D) MAXIMUM RATINGS, ABSOLUTE VALUES Maximum average starting current Maximum averaging time D -c cathode current Maximum Minimum Maximum frequency Ambient temperature limits 75 milliamperes 10 seconds 30 milliamperes 5 milliamperes 0 cycles per second -55 to +90 C APPLICATION NOTES The base of the GL -0B2 fits the miniature 7 -pin socket which may be mounted to hold the tube in any position. No connection should be made to pins 3 and 6 which extend into the interior of the tube since any potentials applied to these pins may cause erratic tube performance. The three pin terminals for the cathode and the two for the anode offer the designer several different possibilities for connection so as to provide protection for the associated components in case the regulator tube is removed from its socket. Sufficient resistance must always be used in series with the GL -0B2 to limit the current through the tube. The value for the series resistor is dependent on the maximum anode -supply voltage and the ratio of the current through the load to the operating current of the GL -0B2, and should be chosen to limit the operating current through the tube to 30 milliamperes at all times after the starting period. The maximum load current that can be regulated is determined by the minimum and maximum values of the supply voltage. The value of series resistor for the maximum supply voltage should be calculated as indicated above. The user should then determine whether this value will permit adequate starting voltage when the supply voltage falls to its minimum value. If adequate starting voltage is not obtained, a new load current of lower value must be used and the calculations repeated. It will be apparent from such calculations that the higher the minimum supply voltage and the smaller the difference between its minimum and maximum values, the higher will be the load current that can be regulated. In order to handle more load current, two or more GL-0B2's may be operated in parallel, but such parallel operation requires that a resistor be used in series with each regulator tube in order to equalize division of the current between the paralleled tubes. Approximately a 100 -ohm resistor for each tube should be used. The disadvantage of this method is that the use of resistors impairs the regulation which can be obtained. When equipment utilizing the GL -032 is turned on, a starting current in excess of the average operating current is permissible as indicated under Maximum Ratings. When the tube is subjected to such high starting currents, the regulated voltage may require up to 20 minutes to drop to its normal operating value. This performance is characteristic of voltage -regulator tubes of the glow -discharge type. Similarly, the regulation voltage is affected by changes in current within the operating current range. For example, the regulation value of a tube operated for a protracted period at 5 milliamperes and then changes to 25 milliamperes, may be somewhat different from the value that will be obtained after a long period of operation at 25 milliamperes. Likewise, the regulation value may change somewhat after a long idle period. If the associated circuit has a capacitor in shunt with the GL -0B2, the capacitor should be limited in value to 0.1 microfarad. A larger value may cause the regulator tube to oscillate and thus give unstable regulation performance. TYPICAL CIRCUITS FOR GLOW TUBE GL -082 GL -0B2 ETI-306 PAGE 3 10-49 SERIES RESISTOR FILTER (D -C VOLTAGE SUPPLY) G L - 0A2 OR OB2 -1-13 REGULATED SUPPLY VOLTAGE TO LOAD TYPE VOLTS (APPROX) 042 150 OB2 I08 CIRCUIT TO PROVIDE REGULATED SUPPLY VOLTAGE OF APPROXIMATELY 150 OR 108 VOLTS TO LOAD. REMOVAL OF TUBE FROM SOCKET REMOVES VOLTAGE FROM LOAD. K -69087-72A280 4-5-49 SERIES GL - RESISTOR 0A2 OR 0B2 -C D -C BIAS SUPPLY +-BC TO CATHODE OF TUBE REGULATED BIAS VOLTAGE TYPE VOLTS (APPROX) 0 A2 ISO OB2 108 TO GRID OF TUBE CIRCUIT FOR BIAS -SUPPLY REGULATION. REMOVAL OF TUBE FROM SOCKET OPENS 9 -SUPPLY CIRCUIT OF REGULATED TUBES. K -69087-72A282 4-6-49 SERIES RESISTOR TO FILTER (D -C VOLTAGE SUPPLY) =Mr GL- 0A2 OR OB2 , T +92 TYPE 0A2 082 VOLTS APPROX 300 216 +B1 vocrs TYPE I APPROX 0A2 150 082 4, 108 B REGULATED SUPPLY VOLTAGE TO LOAD CIRCUIT USING TWO 0A2'S OR TWO 082'S TO PROVIDE REGULATED SUPPLY VOLTAGES OF APPROXIMATELY 300 OR 216 VOLTS AND 150 OR 108 VOLTS TO LOAD. SOCKET CONNECTIONS ARE SO MADE THAT VOLTAGE ON LOAD IS REMOVED WHEN EITHER TUBE IS TAKEN FROM ITS SOCKET. K -69087-72A281 4-6-49 GL -0B2 ETI-306 PAGE 4 10.49 511 2-8 MAX. OUTLINE GLOW TUBE GL -0B2 3., 4 MAX. 2 -311 8 MAX. CATHODE IC DO NOT USE MINIATURE BUTTON 7 -PIN BASE, E7- I ANODE IC DO NOT USE CATHODE ANODE CATHODE BASING DIAGRAM N-1 514 6AZ Tube Divisions, Electronics Department 4-6-49 GENERAL ELECTRIC Schenectady, N. Y. 10-49 (10M) Filing No. 8850 PH OTOTU B ES APPLICATION DATA ETI-177 PAGE 1 4-45 GENERAL 0 ELECTRIC PHOTOTUBES ETI-177 PAGE' 2 4-45 DESCRIPTION The phototube is an electronic device that controls a flow of electrons by means of changes in light. Technically, a "phototube is a vacuum tube in which one of the electrodes is irradiated for the purpose of causing electron emission." (IRE Definition). When a voltage in series with a resistance is applied to the anode and cathode of a phototube and the cathode is illuminated by some light source, a current will flow in this circuit proportional to the amount of light striking the cathode. A phototube may be used in any application where a current change due to a light intensity change can be utilized for control purposes. FUNDAMENTALS Phototubes consist essentially of two electrodes in an evacuated container in which there may be either a vacuum or an inert gas at low pressure. There are three general types of phototubes, vacuum, gas, and electron multiplier. The last mentioned tube consists of the two usual electrodes, cathode and anode, as well as a series of electrodes called dynodes which amplify the electron current from the cathode by means of secondary emission. The cathode has the property of emitting elec- trons under the action of light. A potential of from 15 to 25 volts applied to the anode is sufficient to attract all the electrons emitted from the cathode by the action of the light. An increase of anode voltage above this value will cause little or no increase in current in the vacuum -type tube. However, when a low pressure of an inert gas is present, the original current is increased by the ionization of the gas. The amount of ionization increases rapidly as the anode voltage is increased, until a point is reached at which the discharge breaks into a glow. Since this glow discharge will destroy the tube, it is always necessary to limit the anode voltage to a point well below this value. In the multiplier -type tube, increases in anode and dynode voltages cause greater electron flow due to secondary emission than in either of the other types. In general, the vacuum types are the more stable in their characteristics and give an output directly proportional to the light flux incident on the cathode. The gas -filled tubes have the advantage of greater output per unit of light flux because of the ionization of the gas. The color sensitivity of phototubes, which varies depending upon the type of light-sensitive material and glass envelope used, is quite different from that of the human eye. General Electric manufactures phototubes covering the following color ranges: Red -infrared, violet -green, blue, ultraviolet -blue, ultraviolet, violet -red. Whenever it is desirable to have a device with a special color sensitivity, a standard phototube should be used in conjunction with a light filter with the proper transmission characteristics. RATINGS Phototubes are rated in terms of the following: Spectral Response-expressed as a symbol composed of the letter "S" followed by a number, as S-1, S-2, etc. These symbols represent various curves of output versus light wavelength, and are standardized in accordance with RMA standards. Luminous Sensitivity-usually expressed as the current in microamperes per lumen of light flux. Measurements are usually made at 0.1 lumen, the light source being a tungsten lamp operating at 2870° K. The ultraviolet -sensitive tubes are tested by means of ultraviolet lamps rather than the tungsten lamp. Leakage Resistance or Dark Current-a measure of the output impedance of the phototube. It is given either as a resistance in megohms or a current in microamperes through a given resistance. In the latter case, the cathode is in complete darkness. Gas Ratio-the ratio of the current when ionization exists, to the current due to primary electrons alone. This ratio is obtained by comparing the luminous sensitivities at two voltages, usually 90 and 25 volts. Maximum Anode Voltage-the maximum instantaneous value of voltage that should be impressed on the tube. Static Sensitivity-the ratio of anode direct cur- rent to a constant luminous flux. Dynamic Sensitivity-the ratio of the variation in anode current to the variation of a varying lumi- nous flux. Maximum Anode Current-the maximum instantaneous value of current that should be allowed to pass through the tube. Maximum Ambient Temperature-the maximum temperature to which the tube should be subjected. CLASSES OF PHOTOTUBES Although phototubes are made in a variety of styles and sizes, there are two general methods of classification-by size and by style. There are two general sizes: large PJ-22 small-GL-929 There are several special sizes, of which the F J-405 is one example. The size classes may be divided into three styles, vacuum, gas, and multiplier, the second method of classification. All styles do not exist in each size, as the multiplier type comes in only one size. In the large size tubes, GL-868/PJ-23 is the gas tube and the PJ-22 the vacuum tube. ETI-177 PAGE 3 4.45 APPLICATIONS Phototubes can be divided into three general classes of use: control and safety, amusement and sound reproduction, inspection and measurement. Under control and safety come such applications as: 1. Opening doors automatically 2. Burglar alarm systems 3. Automatic switching of street -lighting systems Amusement and sound reproduction includes: 1. Pin -ball games 2. Theater sound systems 3. Horse race timers Inspection and measurement uses include: 1. Color temperature pyrometers 2. Pinhole detection in sheet metal 3. Daytime measurements of cloud heights These are but a few of the many applications in each of these categories and are given merely as an indication of some of the better known uses to which phototubes have been applied. For most control applications ample illumination is provided by a lamp used as a source of light. In these cases, it is desirable to use a gas phototube of high sensitivity. This obviates the necessity of high -gain amplifier stages following the phototube. For measurement applications, where a very small amount of light is available, a fairly high output impedance is desirable. Leakage currents become important in this case. Phototubes with low leakage are the GL -917 and GL -919. In applications requiring a stable phototube, the vacuum phototube is recommended. For best operation the anode voltage should be kept below 25 volts. It is also desirable to illuminate as much of the cathode area as possible, to avoid minor differences in sensitivity of various sections of the cathode. Where extreme amplification is required the multiplier tube should be used. In comparison to a vacuum phototube, the multiplier phototube has an amplification factor approaching 1,000,000. APPLICATION CIRCUITS# Fig. 1 shows an elementary circuit diagram of a phototube and amplifier. P is any phototube and T any triode. Changes in light on the phototube will cause a change in the current through the load resistance R3. vides an on -off arrangement, actuated by a photo tube and is particularly suitable for applications requiring a high speed of response, where the values of current required are within the rating of the thyratron tube. K-8639699 Fig. 1-Elementary Circuit Diagram of a Phototube and Amplifier 10-14-44 A variation of the elementary diagram is shown in Fig. 2. Here the phototube controls a double grid thyratron, the thyratron conducting when the light level on the phototube decreases. The GL- 868/PJ-23 phototube and the FG-97 thyratron are used in this circuit. This type of circuit pro - #Circuits shown in ETI-177 are examples of possible tube applications and the description and illustration of them does not convey to the purchaser of tubes any license under patent rights of General Electric Company. K-8639691 Fig. 2-Phototube Double -Grid Thyratron Relay Control Circuit 9-28-44 The circuit in Fig. 3 demonstrates the use of the GL-868/PJ-23 phototube as an audio -frequency pickup tube. Any audio -fluctuation of a light ETI-177 PAGE 4 4-45 APPLICATION CIRCUITS (CONT'D) source will be picked up on the phototube and amplified. This type of circuit is used commercially in talking motion pictures, to change the variations along the sound track on the film, back into actual sound and music as heard in our modern theatres. Such a circuit is also suitable for use in "Narrowcasting" with a beam of light where it is desirable to focus the direction of signals to make sure they are not read from other sources. high temperatures where the heat is at a visible temperature. The circuit shown in Fig. 5 has a high impedance input and is adapted for use where the continuous recording of small currents is desired. MPLIFIER CONTROL. TUBES PHOTOT UBE CI 54 cif R 90V. e-1C43 -0 c,Thr- OUD il SPEAKER Li AMPLIFIER CONTROL TUBE PHOTOTUBE ARE,AN,9,0v. C;i 25V. RECTIFIER3" .25 V. D3 K-8639687 R 004 To ICIC°"5-69110VOL 60 CYCLE LINE Fig. 3-High-Gain Phototube Amplifier Circuit 1-26-45 K-9033504 10-14-44 Fig. 5-Recorder Circuit Using Phototubes, Rectifier and High -Vacuum Amplifier Fig. 6 is a circuit used for the measurement of illumination. This circuit may be employed in applications which require the measurement of the output of different light levels. AMPLIFIER CONTROL TUBE A,;,C 00050005jpjj 8) Figs. 4 through 10 illustrate some of the many circuits for specific applications where photo tubes are particularly advantageous for measure- ment and control work. The circuit shown in Fig. 4 may be used for measuring and recording HOT BODY LENS METER K-9033501 IIRJMIM Fig. 6-Phototube Circuit for the Measurement of Illumination RECTIFIER 10-14-44 PHOTOTUBE AMPLIFIER CONTROL TUBE The circuit shown in Fig. 7 is suitable for counting, for on -off operation and similar uses. The voltage source in this circuit is a -c rather than d -c. K-9033554 CALIBRATION CONTROL *Fig. 4-Phototube Pyrometer Circuit 12-11-44 *Fig. 4-King, W. R., General Electric Review, Vol. 39 tFig. 5-Henney, Electron Tubes in Industry, P-418 McGraw-Hill Book Co. Inc., 1937 IFig. 7-Reich, H. J., Theory and Application of Electron Tubes, P-508 McGraw-Hill Book Co ., 1939 K-9033500 grninliliA-73MT611 ^-4 t Fig. 7-Thyratron Phase -Control Circuit Employing a Phototube 10.14-44 APPLICATION CIRCUITS (CONT'D) A circuit for regulating the voltage output from a generator by changing the field supply voltage PHOTOTUBE is shown in Fig. 8. AMPLIFIER CONTROL TUBE RELAY LOAD A -C LIGHT SOURCE METER PHOTOTUBE AMPLIFIER TUBE ETI-177 PAGE 5 4-45 K-9033507 10-14-44 Fig. 8-Voltage Regulation Circuit Using Hole in Meter RECTIFIER L K-8639696 10-14-44 Fig. 9-Forward D -c Photoelectric Relay Circuit AMPLIFIER TUBE The circuits illustrated in Figs. 9 and 10 are used for operating relays, for counters, or for on off and limit -control applications. The circuit shown in Fig. 9 is applicable in cases where relay operation is desired with an increase in light level. A -c 1,000071-90 IL001 The circuit in Fig. 10 may be used in applica- tions where it is desired to operate the relay with a decrease in light level. K-9033505 10-14-44 Fig. 10-Reverse D -c Photoelectric Relay Circuit INSTALLATION AND OPERATION Phototubes may be mounted in any position, but a shock -absorbing mounting must be used if the tubes are to be subjected to vibration or shock. Tubes should never be used in an ambient temperature higher than that given under the Technical Information for the specific tube. Care should be exercised in wiring to insure high insulation resistance and low capacitance in all parts of the circuit. It is desirable to operate phototubes at as low a voltage and illumination as possible, as the life will be increased and better stability of operation will result. A high light level is harmful when the tube is disconnected as well as when it is in operation. For high -frequency operation it is important that leads be kept short to reduce output capaci- tance. The average amplifier circuit employing a photo - tube makes use of standard radio receiver tubes. These radio tubes are rated for approximately 10 megohms maximum d -c resistance between grid and cathode. Therefore 10 megohms is recommended as the maximum phototube load resistance. If it is necessary to use a higher output impedance for the phototube, it is requisite to operate the radio tube at greatly reduced voltages. By using low plate and screen voltages, and a reduced filament voltage, gas ionization is decreased, and the radio tube will be comparatively stable. PHOTOMETRIC TERMS AND FORMULAS Some photometric terms often used in phototube per unit solid angle emitted by that source in that work are given below for reference. direction. Luminous Flux-The rate of passage of radiant energy evaluated by reference to the luminous sensation produced by it is luminous flux. Lumen-The unit of luminous flux is the lumen. It is equal to the flux emitted in a unit solid angle by a uniform point source of one international candle. Point Source of Light-The flux emanating from a light source whose dimensions are negligible in comparison with the distance from which it is observed may be considered as coming from a point. International Candle-The unit of luminous in- tensity is the international candle. Luminous Intensity-The luminous intensity, of a Illumination-The illumination at a point of a point source in any direction is the luminous flux surface is the density of the luminous flux incident ETI-177 PAGE 6 4-45 PHOTOMETRIC TERMS AND FORMULAS (CONT'D) at that point or the quotient of the incident flux by the area of the surface when the latter is uniformly illuminated. Foot-Candle-Taking the foot as the unit of length, the unit of illumination is the lumen per square foot; it is known as the foot-candle. Brightness-The brightness in a given direction of a surface emitting light is the quotient of the luminous intensity measured in that direction by the area of this surface projected on a plane perpendicular to the direction considered. Unit of Brightness-The practice recognized internationally is to express brightness in international candles per unit area of surface. 1 Candle Power = 47r Lumens 1 Foot Candle =1 Lumen per square foot 1 Lumen Candle Power (Area) (Distance)2 1 Lumen =Foot Candle (Area) Foot Candle Candle Power (Distance)2 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 1-46 (3M) Filing No. 8850 GL -1P29 /FJ-401 DESCRIPTION AND RATING ETI-178A PAGE 1 10-50 DESCRIPTION This gas -filled, two -electrode phototube is use- ful in photoelectric control apparatus where a high degree of output per unit of light flux is PHOTOTUBE required. The GL-1P29/FJ-401 has a high sensitivity in the visible range of the spectrum and reaches its maximum output in the blue portion. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Spectral response Luminous sensitivity at 100 volts, 0 cycles Relative luminous sensitivity at 100 volts 5000 cycles. 10,000 cycles Wavelength of maximum response Sensitivity at maximum response Dark current at 90 volts Gas amplification . Interelectrode capacitance. Minimum Bogey Maximum S-3 20 40 70 microamperes per lumen 87 per cent 78 per cent 4200 angstroms 0.010 microampere per microwatt 0.1 microampere 9.0 3.0 micromicrofarads GENERAL Edda ELECTRIC Supersedes ETX-778 dated 4-45 GL -1P29 /FJ-401 ETI-178A PAGE 2 10-50 TECHNICAL INFORMATION (CONT'D) Mechanical Data Window Dimensions Seated height to center of useful cathode area Mounting position-any MAXIMUM RATINGS Anode voltage, d -c or peak a -c Averaging time. Cathode -current density Peak cathode current Ambient temperature :Y8 by 1X inches 21,4 t A inches 100 max volts 30 max seconds 152 max microamperes per square inch 20 max microamperes 100 max C CATHODE *OUTLINE GL -1 P29/FJ401 PHOTOTUBE I"MAX. Ile DIA7 5" MIN. "-(4-'" (------4---.\ I MIN. -1--, -1 DWARF-SHELL,v, SMALL 4 -PIN MAX. 2TI,-332" MAX. CATHODE TERMINAL XmDAIxA7' DIRECTION OF LIGHT NO NC N15125AZ 'Drawing revised CATHODE ANODE TERMINAL 8-4.48 120 mmmmmmNiioouonummmmmmjmmmmmmioooupnummmmrummmmmmmoomuumommmmmopmmmmmummuoummmmmmmumummmmunmuumommmmmommummmwmumomumormmimmmsmmmpummumumeoPmummmmamumimmmmoumummommmumunmmmmmmmumoommmmmmmooummmmmmmmummmmommoooumummmmmmmmmmmmmuoimoommnmummmmimmnmoommmommnmumummummmmuummimnmmmiuommummmmmummmmmumnoEummmimmmmummmmmumuaummssmlm MMWOMMIUMMEMMEME_ZALWOREMWEMEMMEMMEMIMMEMMOMMIMMEMEMEM I 00 MmmmmmuwOmouimouimmnmmm1lmm1uumm1moimmoi1omlmmmv1mmm1momimom1umum1imwnmmm1umdMiumim.uMmmimmI.mmmsmMo.mMiimom.iEspommmsMmlmoMmmoEoimmoomMmmommmmMmmmumoEuMiammommEmumommmMummmmiMumWmomunmOmimomimMammnmmOoiomUuommmTmsmmoNmsmommmTmuomMoummmEmmmmoiMmmEmmmMgmomEommuummMmomaEmommmumSummMommmmmoImomomoNmmmomIommMmmmmmmMuouommEEmmcmoMummmMummmmEuumommuMmmmmeomMmmEummsmuMomimooImmmnommCmmOummmmmMiuumomuMmmmmmoUmmmmMummm MMEMMINIMMOMMEMMUMMAMEMEMINIMMEMMEMMEMMEMEMMINIMMEMEMMOMMOMMO 80 MmmmmmImiommIilmuoMsmmmmMoEmummMmuloiMmmimlEummmMmmMomiomEmommMommmMmmimoEumMmomomMmmmmEmimiMmumimMumLpmmmUmomumMlmmmoMimomElmMumkuNmmmsmIommomMmMoiomEmmmmmMmmmouMuoommEmMmmmmEmmmuuMoiommEmmmmMmmMmmmouEioumMmnmmMmmmmmEioMouummOmmmmImmmmMououoMmmEmmmmmMmmmoMououEmmMmmmmmMmmmiEmiuumMimmmmEnMummmMumouoEmmmmmM MMEMWOMMEMEMMIIMMEMINIMMEMOMMEMMEMMEMMEMEMEMMEMEMMUMMEMEMEMEMM MIIIIMMOMMMEMMIMMEMMEMMEMMINEMMEMMEMMEMMEMMEMMEMMOMMIIMMEMM MMMMEIMIEMNMMIEMMMMEIMMMMIEIMMMMEEMMMEEMMMMEIMMMIEMNMWEOMMMMEEMMMMIENMIIMOMMEMMEMMIMIEMMMMEEMMMMEIMMEMMEEMMMIITMEMMBE MMININIMMUIMMEMEMMEMEMMEMMOMMEMMINIMMEMMEMMINMEMEMEROMM EWE IIMMEMIMMIMMEMIMMEMMIMMINIMMEAMMEMEMMAMMEMEMMEMEMMUMINIMMEM 60 MmMIEoNNmImMmMeoImmMiMEimMmmMmmEuMomMmuEmMmEumMomMmmEmMuoEmmMmMmiEMuMEMmMmIoLonIkMuMMEmMimMmuMmMmoEmMmoMmEmoMmmMmoEoMmmMmEmuMumMmEmmMouSmmMmEmMiuMnmEuMumAmmM MMsmmEooiINmmnImmiMNoimMMmmmEmmoMMomOMImmmMMoEmiEmMolmMmmooEmommMommmEmmmuMmuoEmunmMmmiOmoImmomMmommMmmuiOammnImomMimmuEmummMmmimOiaMnomlMhmmlElmooMuomMmmmmOmmmmMuomoMmmmEmmmuMmuOomumMmmmMmmmiEmoorNummoImmmmMimomMuumuImmmmNmuIouoMmmmmMummmEuuioMmmlmM 40 ImimIimoImmmImumIumoImmmIImumImmiIumuimomimmmioimoimemimmmiumoimomimimmiomuimomimmmiomoimomimimmimmoioumimmmimmoiiiommimmiumoimomimmmfoimimloaimmmiommimuoimimmminmoiiuimmmimmiiiunimimomimmuiomimmoimmmioiommimsmi MIIMMIIMMEMMEMMEMEMEMMMEMMMEMMEMEMMEMMIIMMEMLWMEMMEMEMIIMMEMEMM 20 MmmommioEmomuwmMmmimOomuimMmooMmimmmmEmmmiMmomimmMomomErimMummmnmEmumoosMmmommmMummEmommMomumumEmomnomNommnmMmmmomiEumMommumMmoummmEmrmumMoonmmoEmmmMimmmmEEmomoMmmmmomMmoomEmmommMiommmImmmimUEmomnoMommMmmmmmmEmusmMooommuEmmmmmmMmmmmMouiiuEimmuMksnmmOmlwlaIMmmmNomMmoEgciMimMeumMsMNmmmEmmmIMmimeEIoimowMMmmnmEmMmmMgogEMolmiMMmimMmImEmioMnoimNMmn MIIMMEMMEMMEMEMMEMMEMMEMEMMEMMOMMEMMEMEMMMEMMEMEMMM .11 MM EM 1IMMIE1MIM1UME1MMM1IEMMIMIMMENEMMUMEMMMMEMEMEEMMMMIMMMNEEEIMMMMMEMMEMEEMEMMNMEEEIMMMNIEMINMMMIEEMMMMIMMMEMMMMIMMMIEEEMNMIMEMNEIMIMNMMMIEMEMMEMMMMEMEMMEMMMMIEIMIMIAMMMMMEMMEMEEMMEMEEMMMMEEIMMMMEMEMMEMIEMEMMEMEMIMMIOMMUNOMIMON:MMIIMMMNEMUIMMMMEMMEMEUN mmmiooommmmmmmmuuiilmmlmmmimooiummmmmmmiuooummmmmmmmuuoommmmmmmmuioummmmmmmmiuoummmmmmmmioiommmmmmmmoomummmmumommmoommmmoimmmnoemimmommmmmoomomrmmmnmmimuimmsnmmguioimmmmmmmmmiiiommmmmmomiemno 3000 4000 5000 6000 7000 8000 9000 WAVELENGTH IN ANGSTROM UNITS WAVELENGTH ANGSTROM UNITS K69087 -72A405 9-19-50 10-50 (11M) Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. PJ-22 DESCRIPTION AND RATING ETI-179 PAGE 1 4-45 PHOTOTUBE DESCRIPTION This two -electrode vacuum phototube is designed for use in photoelectric apparatus requiring reliable and accurate control. Although it will pass some current in the visible region, the PJ-2 2 is designed primarily for use in the red and infrared region of the spectrum. The tube is especially useful where a high degree of stability of characteristic is required and where it is desirable to have the output directly proportional to the light flux incident on the cathode. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes 2 Electrical Spectral response Luminous sensitivity at 90 volts, 0 cycles Maximum gas amplification Interelectrode capacitance Maximum dark current at 90 volts Wavelength of maximum response Sensitivity at maximum response S-1 20 microamperes per lumen 1 1 3 0 micromicrofarads 0 1 microampere 7500 angstroms 0 0020 microampere per microwatt TUBE GENERAL ELECTRIC PJ-22 ETI-179 PAGE 2 4-45 TECHNICAL INFORMATION (CONT'D) Mechanical Window dimensions Seated height to center of useful cathode area Maximum over-all height Maximum seated height Maximum diameter. Base Mounting position Net weight, approx Shipping weight, approx MAXIMUM RATINGS Anode voltage, d -c or peak a -c Cathode current density Ambient temperature is x 19,(3 inches 2% d inches 4N inches 3 j2 inches 13A inches M8-074 Any IA ounce 3 pounds 500 volts 152 microamperes per square inch 100 centigrade CATHODE. 158" I" MAX. 116 DIA. n r II U BASE*M8-074 32 MAX. 2W; 4-8 MAX CATHODE TERMINAL 3" MAC 16 DIA. DIRECTION OF LIGHT CATHODE ANODE TERMINAL OUTLINE PJ-22 PHOTOTUBE K-8639391 8-10-44 160 IIII 140 I1 I1 S -I PHOTOSURFACE SPECTRAL SENSITIVITY CHARACTERISTIC FOR EQUAL VALUES OF RADIANT FLUX AT ALL WAVELENGTHS I 80 I- z 60 w 0) I- 40 w CC 20 4000 K-8638626 5000 6000 7000 8000 WAVELENGTH -ANGSTROM UNITS 9 00 0 10000 4-17-44 1-46 (3M) Filing No. 8850 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL -441 DESCRIPTION AND RATING ETI-181 PAGE 1 4-45 PHOTOTUBE DESCRIPTION The GL -441 is a high -vacuum, two -electrode of its excellent stability, and high sensitivity, it phototube which has high sensitivity to light is particularly suitable for measurement and sources predominating in blue radiation. Because relay applications. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes . Electrical Spectral response Luminous sensitivity at 250 volts, 0 cycles Maximum gas amplification Interelectrode capacitance Maximum dark current at 250 volts Wavelength of maximum response Sensitivity at maximum response 2 S-4 45 microamperes per lumen 12 3 0 micromicrofarads 0 1 microampere 4000 angstroms 0 040 microampere per microwatt GENERAL ELECTRIC GL -441 ETI-181 PAGE 2 4-45 TECHNICAL INFORMATION (CONT'D) Mechanical Window dimensions iefi x 1%8' inches Maximum over-all Seated height to center of useful area height.....4% 2 inches yg inches Maximum seated height 3 inches Maximum diameter 1 inches Base M8-074 Mounting position Any Net weight, approx 1/3 ounce Shipping weight, approx pounds MAXIMUM RATINGS Anode voltage, d -c or peak a -c Cathode current density Ambient temperature 250 volts 102 microamperes per square inch 50 centigrade CATHODE 10 S-4 PHOTOSURFACE SPECTRAL SENSITIVITY CHARACTER STIC FOR AT AEQLLUALWVAAVLUEELSENOGF"HRASDIANT FLUX 81 15" r 8 d tJ 3 MAX. ) 2ft4; 4i MAX. 1BASE*M8-074 CATHODE TERMINAL 3"MAX.,- 1-6 DIA DIRECTION OF LIGHT CATHODE ANODE TERMINAL OUTLINE PHOTOTUBE GL -441 K-8639391 8-10-44 K-8639625 WAVELENGTH -ANGSTROM UN ITS -8-0-00- 4-27-44 1-46 (3M) Filing No. 8850 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL -868 /PJ-23 DESCRIPTION AND RATING ETI-182A PAGE 1 10-50 DESCRIPTION This gas -filled two -electrode phototube is designed for photoelectric control apparatus where a high degree of output per unit of light flux is re- PHOTOTUBE quired. While the GL-868/PJ-23 will pass some cur rent in the visible region, it is designed primarily for use in the red and infrared region of the spectrum. TECHNICAL INFORMATION These data ore for reference only. For design information refer to specifications. GENERAL Electrical Data Spectral response Wavelength of maximum response Sensitivity at maximum response Dark current at 90 volts Gas amplification Interelectrode capacitance S-1 8000 angstroms 0 009 microampere per microwatt 0 1 microampere 8 3 micromicrofarads GENERAL ELECTRIC Supersedes ETI-182 doted 4-45 GL -868 /13J-23 ETI-182A PAGE 2 10-50 TECHNICAL INFORMATION (CONT'D) Mechanical Data Window dimensions, minimum Seated height to center of window Mounting position-any MAXIMUM RATINGS Anode voltage, d -c or peak a -c Average cathode current 5 ua Average cathode current 10 ua Averaging Time Peak cathode -current density Peak cathode current Ambient temperature % by 114 inches 2A t A inches 100 max volts 100 max volts 80 max volts 30 max seconds 100 max microamperes per square inch 20 max microamperes 100 max C CHARACTERISTICS Sensitivity Luminous At 0 cycles At 5000 cycles At 10,000 cycles Gas amplification Factor. Minimum 50 Bogey 90 77 67 Maximum 145 microamperes per lumen microamperes per lumen microamperes per lumen 8 OUTLINE GL-868/PJ-23 PHOTOTUBE , I" MAX._ 16 DIA. CATHODE I -I MIN. LJ DWARF..SHELL__--w* SMALL 4 -PIN 2I3" 23 MAX. 4-8 MAX. CATHODE TERMINAL '-.0, 7"DMIAAXT. DIRECTION OF LIGHT NC N-15125AZ Outline revised. CATHODE ANODE TERMINAL 8-4-48 60 MAMMEIMI MM M m" MILMI MAI l 1 NAM AIN IMIIMMXIMME 140 IMMIMAIIMMA AAEEIU ISIIMMIII II& 1 ..IIIi MAUI mMmAMisMAMIMMMEPm / 120 KAM AMA I 00 mmgimmiammmmoommm mem V mmmummg MARAAE NO AMAMI MIAMI MIA r A UMMU MIAMI MMMMM 1 rI 80 MIAMI , MAWNIAR AMMII MIMMINNIMEMM AMMEMAM ME I ri MASAI 60 I /mummy mommgmmmomm Immmommomm 1. AIIII IAMINUAmMUMMEMMEAMMIEAAAAMMMMAEBA IAMMILAMIMMEM UMMAnAMAMMUMWAM HAM 40 UmMAIMMAIENAMOIE UM I IIAMAIII NI UMMI r AM, M 1 IME EIN EM/ IMA 20 OAI IMILAoMwEr I 1 EMMEMMEMImPEIllMmAEIMMMEMA 1 L.1 :MU GG J1AUMAIIAM I II MI I I a IV I I 1 / 1 I I 1 1 1 gum IMME mmimmmml mm mmmm 1 3000 5000 K -69087-72A406 7000 9000 006 1300e WAVELENGTH IN ANGSTROM UNITS 11111111""m" 500 1700 i 9-19-50 10-50 (11M) Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL -917 DESCRIPTION AND RATING ETI-183 PAGE 1 4-45 PHOTOTUBE DESCRIPTION The GL -917 is a two -electrode high -vacuum phototube for measurement and relay applica- tions. It has high sensitivity in the red and infrared regions of the spectrum. Construction affords high resistance to leakage current between electrodes, with resultant stability of operation and permanence of calibration. The anode of the GL -917 is connected to the top cap, while in the GL -919 the cathode is connected to the top cap. As a result of this reversal of connections, the GL -917 may be used in series with the GL -919 with resultant very small leakage current and high overall sensitivity. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes . 2 Electrical Spectral response S-1 Luminous sensitivity at 250 volts, 0 cycles 20 microamperes per lumen IWntearevlecetrloedne gcatphaciotanfcemaximum 2 0 response..8000 micromicrofarads angstroms Sensitivity at maximum response 0 0020 microampere per microwatt GENERAL 0 ELECTRIC GL -917 ETI-183 PAGE 2 4.45 TECHNICAL INFORMATION (CONT'D) Mechanical Window dimensions Seated height to center of useful cathode area Maximum over-all height Maximum seated height . Maximum diameter Cap Base . Mounting position. Net weight, approx Shipping weight, approx.. MAXIMUM RATINGS Anode voltage, d -c or peak a -c . Cathode current density Ambient temperature 16 DIA. CAP .360.4,005"DIA. CATHODE 1*4101 BA SE 32 4K±- al+A" 8- 32 31g+ ,3" 16 DIA. DIRECTION OF LIGHT 160 A 140 li II c0120 3- < 100 80 3- I - z 60 w cn E- -140 er is x 1% inches inches 4,A inches 314 inches 13.A. inches M8-125 M8-074 Any VI ounce 3 pounds 500 volts 152 microamperes per square inch 100 centigrade S -I PHOTOSURFACE SPECTRAL SENSITIVITY CHARACTERISTIC FOR EQUAL VALUES OF RADIANT FLUX AT ALL WAVELENGTHS PIN GL -917 GL -919 I 2 ANODE 3 4 CATHODE TCA"P ANODE CATHODE OUTLINE PHOTOTUBE GL -917 K-8277038 6-30-44 20 4000 K-8639626 5000 6000 7000 8000 WAVELENGTH -ANGSTROM UNITS 1-46 (3M) Filing No. 8850 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 9000 100004-17-44- GL -918 DESCRIPTION AND RATING ETI-184A PAGE 1 12-50 PHOTOTUBE DESCRIPTION The GL -918 is a two -electrode, gas -filled photo - tube and is designed for use in measurement used in this tube has a high sensitivity to red radiation and is designed particularly for use and relay applications. The S-1 photosurface where the illumination on the phototube is low. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Spectral response Relative luminous sensitivity 0 cycles 5,000 cycles 10,000 cycles Wavelength of maximum response Sensitivity at maximum response Dark current at 90 volts Gas amplification factor Direct interelectrode capacitance . Completely revised. Minimum Bogey Maximum S-1 120 150 120 105 8000 t 1000 0.015 3 220 microamperes per lumen microamperes per lumen microamperes per lumen Angstroms microamperes per microwatt 0.1 microamperes 10.5 micromicrofarads GENERAL ELECTRIC Supersedes ETI-184 dated 4-45 GL -918 ETIA 84A PAGE 2 12-50 TECHNICAL INFORMATION (CONT'D) --\ Mechanical Data Window dimensions, minimum Seated height to center of window Mounting position-any .5A by 11/i inches 214, as inches MAXIMUM RATINGS Anode voltage (d -c or peak a -c) Average cathode current 5 ua Average cathode current 10 ua Averaging time Peak cathode -current density Peak cathode current Ambient temperature 90 max volts 70 max volts 30 max seconds 100 max microamperes per square inch 20 max microamperes 100 max C S-1 PHOTOSURFACE SPECTRAL SENSITIVITY CHARACTERISTIC FOR EQUAL VALUES OF RADIANT FLUX AT ALL WAVELENGTHS 160 OUTLINE GL -918 PHOTOTUBE 140 1111111111111111111111111111111111111111111111111111111111111111111111 113111111111111111161111111111111Allppflffillandlm 120 0 100 Brun DWARF -SHELL SMALL 4 -PIN 1111111111111111111111111111111111111111111111111111111111111111111 80 I 111111111111111111111111111111111111111111111111111111111111111 60 CATHODE TERMINAL NC N -15125A2 I Revised. ,DIRECTION OF LIGHT NC CATHODE ANODE TERMINAL 8-4-48 40 20 111"1"11111"11111111111111111111111i1l1l11111111111111111111111111"" iiiiiiiiiiiiiii i ii iiiiiiiii:i ii iiiiii iiiiiiiiiiiiiiiiii IIII21111 I 3000 5000 7050 9000 % 1100 1300 1500 1700 WAVELENGTH IN ANGSTROM UNITS K -69087-72A406 (Revised) 9-19-50 12-50 (1IM) Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. V. GL -919 DESCRIPTION AND RATING ETI-185 PAGE 1 4-45 PHOTOTUBE DESCRIPTION The GL -919 is a two -electrode vacuum photo tube for measurement and relay applications. It has high sensitivity in the red and infrared regions of the spectrum. Construction affords high resistance to leakage current between electrodes, with resultant stability of operation and permanence of calibration. The cathode of the GL -919 is connected to the top cap, while in the GL -917 the anode is connected to the top cap. As a result of this rever- sal of connections, the GL -919 may be used in series with the GL -917 with resultant very small leakage current and high over-all sensitivity. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes . Electrical Spectral response Luminous sensitivity at 250 volts, 0 cycles. Interelectrode capacitance Maximum dark current at 250 volts Wavelength of maximum response Sensitivity at maximum response 2 S-1 20 microamperes per lumen 2 0 micromicrofarads 0.1 microamperes 8000 angstroms 0 0020 microamperes per microwatt GENERAL *ELECTRIC GL -919 ETI-185 PAGE 2 4-45 TECHNICAL INFORMATION (CONT'D) Mechanical Window dimensions Seated height to center of useful cathode area Maximum over-all height Maximum seated height Maximum diameter Cap Base Mounting position Net weight, approx Shipping weight, approx MAXIMUM RATINGS Anode voltage, d -c or peak a -c Cathode current density. Ambient temperature . x 1% inches 2% t32 inches .41%-, inches 3N inches 1* inches M8-125 M8-074 Any ounce 3 pounds 500 volts 152 microamperes per square inch 100 centigrade ,1' MAX 86 DIA CAP .360'.005"DIA. S -I PHOTOSURFACE 160 SPECTRAL SENSITIVITY CHARACTERISTIC FOR EQUAL VALUES OF RADIANT FLUX AT ALL WAVELENGTHS 140 CATHODE I6 i" W4101 BASE - 13" MAX._,. 16 DI A. DIRECTION OF LIGHT (0 120 I- z cr Q 100 cr 1- CC 80 I- czo 60 -J40 Lai CC PIN GL -917 GL -919 I 2 ANODE 3 4 CATHODE "CPAP ANODE CATHODE. OUTLINE PHOTOTUBE GL -919 K-8277038 6-30-44 20 4000 K-8639626 5000 6000 7000 8000 WAVELENGTH -ANGSTROM UNITS 1-46 (3M) Filing 4o. 8850 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 9000 10000 4-17-44 GL -920 DESCRIPTION AND RATING ETI- 1 86 PAGE 1 4-45 PHOTOTUBE DESCRIPTION The GL -920 is designed for sound reproduction applications. The S-1 photosurface used in this tube Two separate phototube units are mounted in the envelope with the cathode and anode of each has high sensitivity in the red and infrared region. unit brought out to separate base connections. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes Electrical Spectral response. Luminous sensitivity at 90 volts, 0 cycles Maximum gas amplification. Interelectrode capacitances, between cathode and anode of each unit 4 S-1 75 microamperes per lumen 9 0 1 5 micromicrofarads GENERAL ELECTRIC GL -920 ETI-186 PAGE 2 4-45 TECHNICAL INFORMATION (CONT'D) M Mechanical Window dimensions Seated height to center of useful cathode area Maximum over-all height. Maximum seated height Maximum diameter Base Mounting position Net weight, approximate . Shipping weight. 4 inch by 1 inch 214 inches 4 inches 3% inches 1-h- inches A4-5 Any 1 ounce 3 pounds MAXIMUM RATINGS Anode voltage, d -c or peak a -c Cathode current density Ambient temperature 90 volts 20 microamperes per square inch 100 centigrade BASE A4-5 38" MAX. 216II" MIN. 4" MAX 160 A 140 LO 120 1- 1 Z I 100 et I 1 4 80 111 >- S -I PHOTOSURFACE SPECTRAL SENSITIVITY CHARACTERISTIC FOR EQUAL VALUES OF RADIANT FLUX AT ALL WAVELENGTHS CATHODE TERMINAL UNITWI 165" MAX.DIA. f- DIRECTION OF LIGHT CATHODE TERMINAL UNIT* ANODE TERMINAL UNIT *I 3 ANODE TERMINAL UNIT*2 OUTLINE GL -920 PHOTOTUBE K-9033562 12-16-44 z 60 111 1: <-J 40 CC 20 4000 K-8639626 5000 6000 7000 8000 WAVELENGTH -ANGSTROM UNITS 9 000 10000 4-17-44 1-46 (3M) Filing No. 8850 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL -921 DESCRIPTION AND RATING ETI-187 PAGE 1 4-45 PHOTOTUBE DESCRIPTION The GL -921 is a cartridge -type, two -electrode infrared radiation. The double-edged design, with a gas -filled phototube for relay- and light -measure- terminal at each end, provides a compact photo ment applications. It is highly sensitive to red and tube useful in applications where space is restricted. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes . 2 Spectral Electrical response..S-1 Luminous sensitivity at 90 volts, 0 cycles 135 microamperes per lumen Maximum gas amplification 10 Interelectrode capacitance 1 0 micromicrofarad Maximum dark current at 90 volts.. 0 1 microampere Wavelength of maximum response 8000 angstroms Sensitivity at maximum response 0 013 microampere per microwatt GENERAL *ELECTRIC GL -921 ETI-187 PAGE 2 4-45 TECHNICAL INFORMATION (CONT'D) Mechanical Window dimensions Seated height to center of useful cathode area Maximum over-all height Maximum seated height. Maximum diameter Mounting position Net weight, approx. . Shipping weight, approx MAXIMUM RATINGS Anode voltage, d -c or peak a -c Cathode current density Ambient temperature . ANODE TERMINAL SECTIONAL VIEW OF ANODE TERMINAL 13'+ I" ,'224T1s" 132-16 4 CATHODE TERMINAL .375 ±.0 0" CATHODE 16-16 5" 8 32 DIRECTION OF LIGHT 160 A 140 (/) 120 z < 100 CC ao ce 80 z 60 LLI 17- 0 x 7A inches inches 1.11 inches 1.32 inches 0 890 inch Any IA ounce 3 pounds 90 volts 152 microamperes per square inch 100 centigrade S -I PHOTOSURFACE SPECTRAL SENSITIVITY CHARACTERISTIC FOR EQUAL VALUES OF RADIANT FLUX AT ALL WAVELENGTHS .375"±.010" SDI CA. IODE 32 .890" MAX. DIA. CATHODE -END VIEW OUTLINE PHOTOTUBE GL -921 K-8277039 7-1-44 20 4000 K-8639626 5000 6000 7000 8000 WAVELENGTH -ANGSTROM UNITS 9000 10000 4-17-44 1-46 (3M) Filing No. 8850 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL -922 DESCRIPTION AND RATING ETI-1 88 PAGE 1 4-45 PHOTOTUBE DESCRIPTION The GL -922 is a cartridge -type, two -electrode phototube for relay- and light -measurement applications. It is highly sensitive to red light and infra - red radiation. The double-edged design, with a terminal at each end, provides a compact phototube useful in many applications where space is restricted. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes Electrical Spectral response Luminous sensitivity at 250 volts, 0 cycles Interelectrode capacitance Wavelength of maximum response Sensitivity at maximum response S-1 20 microamperes per lumen 0 5 micromicrofarad 8000 angstroms 0 0020 microampere per microwatt GENERAL ELECTRIC GL -922 ETI-188 PAGE 2 4-45 TECHNICAL INFORMATION (CONT'D) Mechanical Window dimensions Seated height to center of useful cathode area Maximum over-all height Maximum seated height Maximum diameter Mounting position Net weight, approx Shipping weight, approx. MAXIMUM RATINGS Anode voltage, d -c or peak a -c Cathode current density Ambient temperature x inches inches 134 inches 132 inches 0.890 inch Any ounce 3 pounds 500 volts 152 microamperes per square inch 100 centigrade .380'1-.004" ANODE TERMINAL 5" 13"1" 8 '32-16 3" 16 SECTIONAL VIEW OF ANODE TERMINAL F IITi CATHODE II II II 5.. 11 L 4 II" 4. i" 16 -16 CATHODE TERMINAL 30 ----f- 32 .375"+.ow" DIRECTION OF LIGHT CATHODE 1" 32 .37541.010" 1" 32 .890"MDAIXA.. CATHODE END VIEW OUTLINE GL -922 PHOTOTUBE K-8639380 6-30-44 S -I PHOTOSURFACE 160 SPECTRAL SENSITIVITY CHARACTERISTIC FOR EQUAL VALUES OF RADIANT FLUX AT ALL WAVELENGTHS 140 0120 I- 1 100 cc I- I I )'- so I.- zcs) 60 --.15 140 LU 20 4000 K-8639626 5000 6000 7000 8000 WAVELENGTH -ANGSTROM UNITS 9000 10000 4-17-44 1-46 (3M) Filing No. 8850 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL -923 DESCRIPTION AND RATING ETI-1 89 PAGE 1 4-45 p37PC4 e7t-- _, )(cpp 71- e PHOTOTUBE DESCRIPTION The GL -923 is a two -electrode, gas -filled photo - high sensitivity to red radiation and is detube used in measurement and relay applications. signed particularly for use where the illuminaThe S-1 photosurface used in this tube has a tion on the phototube is low. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes. Electrical Spectral response. Luminous sensitivity at 90 volts, 0 cycles Maximum gas amplification Interelectrode capacitance . Maximum dark current at 90 volts. Wavelength of maximum response. Sensitivity at maximum response 2 S-1 135 microamperes per lumen 10.0 2 6 micromicrofarads 0 1 microampere 8000 angstroms 0 0130 microampere per microwatt GENERAL 0 ELECTRIC GL -923 ETI-189 PAGE 2 4-45 TECHNICAL INFORMATION (CONT'D) Mechanical Window dimensions x inches Seated height to center of useful cathode area. inches Base..M8-071 Maximum over-all height Maximum seated height Maximum diameter 3* inches 2f inches 116 inches Mounting position Net weight, approx Shipping weight, approx Any 3/I ounce 3 pounds MAXIMUM RATINGS Anode voltage, d -c or peak a -c Cathode current density Ambient temperature 90 volts 102 microamperes per square inch 100 centigrade we" DIA. . 16MAX.-"" m11" ET CATHODE 410 8 BASE ,we 3" 116 DI A. -n 27165" V MAX 32-32 39-' MAX. 16 DIRECTION OF LIGHT CATHODE PIN CONNECTION I NO CONNECTION 2 ANODE 3 NO CONNECTION 4 CATHODE OUTLINE GL -923 PHOTOTUBE K-8065599 6-30-44 S -I PHOTOSURFACE 160 SPECTRAL SENSITIVITY CHARACTERISTIC FOR EQUAL VALUES OF RADIANT FLUX AT ALL WAVELENGTHS 140 i W/- 120 z >- CC .1 100 CC 33- ' so 3- I- Z 60 LL1 U) 17- < 40 cr 20 4000 K-8639626 5000 6000 7000 8000 WAVELENGTH -ANGSTROM UNITS 9000 10000 4-17-44 1-46 (3M) Filing No. 8850 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL -927 DESCRIPTION AND RATING ETI-190 PAGE 1 4-45 PHOTOTUBE DESCRIPTION The GL -927 is a two -electrode, gas -filled photo- tube has a high sensitivity to red radiation tube which is used in measurement and relay and is designed particularly for use where the applications. The S-1 photosurface used in this illumination on the phototube is low. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Electrical Number of electrodes Spectral response Luminous sensitivity at 90 volts, 0 cycles Interelectrode capacitance Wavelength of maximum response Sensitivity at maximum response 2 S-1 125 microamperes per lumen 2 0 micromicrofarads 7500 angstroms 0 0150 microampere per microwatt GENERALOELECTRIC GL -927 ETI-190 PAGE 2 4-45 TECHNICAL INFORMATION (CONT'D) Mechanical Window dimensions Seated height to center of useful cathode area Maximum over-all height Maximum seated height Maximum diameter Base Mounting position Net weight, approx Shipping weight, approx MAXIMUM RATINGS Anode voltage, d -c or peak a -c Cathode current density Ambient temperature 160 A 140 is x 7A inch 14 inches 232 inches 2 inches H. inch 3313 Any ounce 3 pounds 90 volts 101 microamperes per square inch 100 centigrade S -I PHOTOSURFACE SPECTRAL SENSITIVITY CHARACTERISTIC FOR EQUAL VALUES OF RADIANT FLUX AT ALL WAVELENGTHS ANODE TERMINAL .344"± .007"DIA. AT PIN TIPS 2 DIRECTION OF LIGHT ALL PINS .0 9 3"-± .003" vs, 122" NO CONNECTION 1 OP 3 CATHODE TERMINAL K-8277040 OUTLINE GL -927 GAS PHOTOTUBE 8-18-44 0)120 1- I I I I >.1 100 I CC 1 - re ' so 5 z 60 -4 40 CC 20 4000 K-8639626 5000 6000 7000 8000 WAVELENGTH -ANGSTROM UNITS 9000 10000 4-17-44 1-46 (3M) Filing No. 8850 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL -929 DESCRIPTION AND RATING ETI-191A PAGE 1 1 2-50 PHOTOTUBE DESCRIPTION The GL -929 is a high -vacuum, two -electrode phototube which has extraordinarily high sensitivity to light sources predominating in blue radia- tion. Because of its excellent stability, and high sensitivity, the GL -929 is particularly suited for measurement and relay applications. *TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Spectral response Luminous sensitivity at 250 volts, 0 cycles. Relative luminous sensitivity at 250 volts 10,000 cycles Wavelength of maximum response Sensitivity at maximum response Leakage resistance Gas amplification factor . Interelectrode capacitance 40 Completely revised. Minimum Bogey Maximum S-4 25 45 70 microamperes per lumen 3500 20000 100 4000 0.037 2.6 per cent 4500 Angstroms microamperes per microwatt megohms 1.25 micromicrofarads GENERAL ELECTRIC Supersedes ETI-191 dated 4-45 GL -929 ETI.191A PAGE 2 12-50 TECHNICAL INFORMATION (CONT'D) Mechanical Data Window dimensions Seated height to center of window Mounting position-any MAXIMUM RATINGS Anode voltage (d -c or peak a -c) Averaging time Peak cathode-current density Average cathode current Averaging time 30 seconds, maximum Peak cathode current Ambient temperature N by H. inches 15A A inches 250 max volts 30 max seconds 100 max microamperes per square inch 5 max microamperes 20 max microamperes 75 max C *OUTLINE GL 929 PHOTOTUBE ,1" MAX,. '16 DIA 73- MI 13" 16 MIN CATHODE BASE NO. B5-10 22MAX ' 5'+3" 8-32 1 3:M AX. 16 5-4 PHOTOSURFACE SPECTRAL SENSITIVITY CHARACTERISTIC .11- I- MAX 16 DIA. CATHODE TERMINAL CATHODE NC NC ANODE TERMINAL DIRECTION OF LIGHT K-8070703 112evised drawing. 8-4-48 WAVELENGTH IN ANGSTROM UNITS K -69087-72A373 (Revised) 4-27-50 12-50 (11M) Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL -930 DESCRIPTION AND RATING ETI-192A PAGE 1 12-50 PHOTOTUBE DESCRIPTION The GL -930 is a two -electrode, gas -filled photo - tube has a high sensitivity to red radiation. tube which is used in measurement and relay The GL -930 is designed particularly for use applications. The S-1 photosurface used in this where the illumination on the phototube is low. *TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Spectral response Luminous sensitivity at 90 volts, 0 cycles Relative luminous sensitivity at 90 volts 10,000 cycles Wavelength of maximum response Sensitivity at maximum response Leakage resistance Gas amplification factor. Interelectrode capacitance Completely revised. Minimum Bogey Maximum S-1 90 135 205 microamperes per lumen 75 7000 8000 0.0135 900 2.4 per cent 9000 Angstroms microamperes per microwatt megohms 10 micromicrofarads GENERAL ELECTRIC Supersedes ETI-192 dated 4-45 GL -930 En -192A PAGE 2 12-50 TECHNICAL INFORMATION (CONT'D) Mechanical Data Window dimensions Seated height to center of window Mounting position .54 by 4 inches as tl% inches any MAXIMUM RATINGS Anode voltage (d -c or peak a -c) Average cathode current 3 ua Average cathode current 6 ua Averaging time Average cathode-current density Below 70 volts Above 70 volts Peak cathode current Ambient temperature 90 max volts 70 max volts 30 max seconds 10.0 max microamperes per square inch 5 max microamperes per square inch 20 max microamperes 100 max C S-1 PHOTO SURFACE SPECTRAL SENSITIVITY CHARACTERISTIC FOR EQUAL VALUES OF RADIANT FLUX AT ALL WAVELENGTHS 160 *OUTLINE GL -930 PHOTOTUBE 1"MAX 116 DIA. IT MIN 13" MIN CATHODE BASE NO. B5-10 2i MAX. 2 3" -32 3-MAX. 16 CATHODE TERMINAL r -o_ I 5"MAX 16 DIA. CATHODE NC NG ANODE TERMINAL I 11111..1 .11.1111111111.1111111111111111111111111111111111111111111 140 I 20 1 11111111111111111 100 1 11111111111111111111111111111111111111111111111111111111111111 80 I 111111111111111111111111111111111111111111111111111111111111111 . WW1 6 40 rill jimmIlmm" I I' 20 i I iill II 11111111111111 11 1 11 11 III III 1111111111 iiiiiiiiiiiiiiiiiiiiiiiii il 1111111011111111111 IIIIIIIIIIIIIIIIII DIRECTION OF LIGHT K-8070703 IRevised. 8-4-48 3000 5000 K -69087-72A406 (Revised) 7000 9000 1100 1300 WAVELENGTH IN ANGSTROM UNITS 1500 1700 9-19-50 12-50 (11M) Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL -931-A DESCRIPTION AND RATING ETI-193A PAGE 1 8-50 PHOTOTUBE DESCRIPTION The GL -931-A is a multiplier phototube predominately sensitive to blue radiation. The photo current produced at the cathode is, in tubes of the multiplier type, multiplied many times by second- ary emission occurring at successive dynodes within the tube. This tube can multiply feeble currents produced by weak illuminations as much as 200,000 times. To this feature is added high sensitivity, low noise level, low dark current, and freedom from dis- tortion. +TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes Electrical Spectral response-S-4 Luminous sensitivity At 1000 volts, 0 cycles At 750 volts, 0 cycles Relative luminous sensitivity at 1000 volts, 10,000 cycles Technical information completely revised. Minimum Bogey 11 Maximum 4.5 10 300 amperes per lumen 1.5 amperes per lumen 100 per cent GENERAL ELECTRIC Supersedes ETI-193 dated 4.45 GL -931-A ETI-193A PAGE 2 8-50 TECHNICAL INFORMATION (CONT'D) Electrical (Cont'd) Wavelength of maximum response Sensitivity at maximum response Dark current at 1000 volts Current Amplification At 1000 volts At 750 volts Interelectrode Capacitances Anode to Dynode No. 9 Anode to all other electrodes Mechanical Window dimensions, minimum Seated height to center of window Mounting position MAXIMUM RATINGS Anode voltage, d -c or peak a -c Averaging time Peak anode current Average anode current Ambient temperature 3500 4000 9300 1,000,000 150,000 4 6.5 4500 angstroms microamperes per microwatt 0.25 microampere micromicrofarads micromicrofarads IA by ft inches 111. inches any 1250 volts 30 seconds 10 milliamperes 1 milliampere 75 C GL -931-A AVERAGE ANODE CHARACTERISTICS VOLTAGE PER STAGE= 100 2 . 5 2 . 0 -2.00 I .5 I .0 0 . 5 LG X MI C r 0 L UME114- 0 50 K -69807-72A384 I00 150 200 250 300 VOLTAGE BETWEEN ANODE AND DYNODE NO.9 IN VOLTS 350 400 6-12-50 Og-L1-9 t S1 :10A N I 39V1S 8351 3 9 V.1. 10A 5Z1 001 5L Og BUVADJI3 paqA011, g8£VEZ-Z8069-N 001 0001 000'01 000'001 000 '000 '1 I 00* 0 10 ' 0 0 1 r 0' I 0 0I NOL1V213d0 D-03 SDLLS12131DV2IVHD 3OV213AV GL -931-A ET1.193A PAGE 4 8-50 *OUTLINE GL -931-A MULTIPLIER PHOTOTUBE CATHODE 11-63" MAX. DIA. 5" 16 T165-"MIN. SMALL SHELL SUBMAGNAL II -PIN BASE 3. MAX. I - - 15'4.3" 16-32 *S-4 PHOTOSURFACE SPECTRAL SENSTIVITY CHARACTERISTIC Irof 100 80 60 40 Al TA A ,20)M_ AT I ii" 316 MAX. 20 3000 5000 5' MAX. 41- 'IC DIA. K -69087-72A373 ,Revised drawing f -DIRECTION OF LIGHT DY6 DY6 A 0 @1 DY7 DY4O ODYB DY3© DY2 ODY9 DV! 4 BOTTOM VIEW OF BASE DIRECTION OF LIGHT BASING DIAGRAM OF BULB WILL NOT DEVIATE MORE THAN e IN ANY DIRECTION FROM THE PERPENDICULAR ERECTED AT CENTER OF BOTTOM OF BASE. K-8277037 # Revised drawing 4-28-50 70 0 30 0 WAVELENGTH IN ANGSTROM UN ITS 00 4-27-50 8-50 (I1M) Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL -935 DESCRIPTION AND RATING ETI-270A PAGE 1 3-51 PHOTOTUBE DESCRIPTION The GL -935 is a high -vacuum phototube which has extraordinarily high sensitivity to light sources predominating in blue and ultraviolet radiation. This tube will respond in the region down to about 2000 angstroms. Because of its excellent stability, consistency of spectral response and extremely high sensitivity, the 935 is suited for use in measuring ultraviolet absorption of gases and liquids. +TECHNICAL INFORMATION These data are for reference only. For design information see the Specifications. GENERAL Electrical Data Spectral response-S-5 Luminous sensitivity* Wavelength of maximum response Sensitivity at maximum response Dark current at 250 volts Direct interelectrode capacitance Completely revised. Minimum Bogey Maximum 18 35 3400 500 0.032 0.6 70 microamperes per lumen angstroms microamperes per microwatt 0.0005 microamperes micromicrofarads GENERAL E ELECTRIC Supersedes ETI-270 dated 11-46 GL -935 ETI.270A PAGE 2 3-51 TECHNICAL INFORMATION (CONT'D) Mechanical Data Window dimensions, minimum Seated height to center of window Mounting position-any % by lA inches 2 t A inches MAXIMUM RATINGS Anode voltage (d -c or peak a -c) Peak cathode -current density 250 max volts 100 max microamperes per square inch Average cathode current *10 max microamperes Maximum averaging time 30 seconds Peak cathode current Ambient temperature 30 max microamperes 75 max C * Light source consists of Mazda projection lamp operating at filament color temperature of 2870 K. A steady light input of 0.1 lumen is used together with a d -c anode -supply voltage of 250 volts and a 1-megohm load resistor. OUTLINE GL -935 PHOTOTUBE ANODE TERMINAL CAP CI -3 .250"±.005" DIA. CATHODE If MIN. OUTLINE GL- 935 MAX. DIA. .281" 3 1±2. 16 8 BASE B5-10 e' MAX 132 DIA. BASING DIAGRAM DIRECTION OF INCIDENT RADIATION NC ANODE TERMINAL (1-1 NC NC N15078AZ +Revised. C KEY CATHODE TERMINAL (-) 1-3-51 LS S PECTRA ENS TIV IT) PHO TOT JBE HA' IN FOR E QUA L V AEU )F R AD A N1 CI- AR ACTOR IS TIC OF S - 5 F ES PONSE FL UX AT ALL WA /EL :NG- HS 100 90 80 70 60 50 40 30 20 10 Apo 3000 4000 5000 WAVELENGTH IN ANGSTROM UNITS 6000 Abo K -69087-72A162 (New) 6-11-47 (3-51 11M) Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL- 1 P37 DESCRIPTION AND RATING ETI-289 PAGE 1 12-48 PHOTOTUBE DESCRIPTION The GL -1P37 is a gas phototube with high sen- sitivity to light sources predominating in blue radiation and negligible sensitivity to infrared radiation. It is, therefore, particularly suitable for use in sound reproduction involving a dye -image sound track in conjunction with an incandescent light source. It may also be used in measurement and color -control applications. Because the GL -1P37 has little response in the infrared region where dye -image sound tracks have marked transparency, masking of the dye -image modulation by infrared transmitted through the film is avoided, and the dye -image modulation of either variable -area or variable -density sound tracks is reproduced essentially to its full degree. The luminous sensitivity, anode characteristics, and structure of the GL -1P37 are comparable with the same properties of Types GL -868 and GL -918 to permit use of the GL -1P37 without circuit modification in motion picture equipment designed to use the two older types. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes 2 GENERAL ELECTRIC GL -1 P37 ETI-289 PAGE 2 12-48 TECHNICAL INFORMATION (CONT'D) Electrical Spectral response Sensitivity at 4000 angstroms Luminous sensitivity At 0 cycles At 5000 cycles. At 10,000 cycles Wavelength of maximum response Maximum gas amplification factor Direct interelectrode capacitance Maximum dark current at 90 volts Mechanical Mounting position-any S-4 0 125 microampere per microwatt 135 microamperes per lumen 124 microamperes per lumen 108 microamperes per lumen 4000 t 500 angstroms 5 5 3 uuf 0 05 microampere MAXIMUM RATINGS, ABSOLUTE VALUES Anode voltage, d -c or peak a -c Average cathode current* Peak cathode current Peak cathode current density Ambient temperature 100 max volts 5 max microamperes 20 max microamperes 100 max microamperes per square inch 75 max C MINIMUM CIRCUIT VALUES D -c load resistance With anode -supply voltage of 75 volts or less for d -c currents above 3 microamperes D -c load resistance With anode -supply voltage of 75 volts or less for d -c currents below 3 microamperes With anode -supply voltage of 90 volts For d -c currents above 3 microamperes For d -c currents below 3 microamperes 0.1 megohm no minimum 2 5 megohms 0.1 megohm * Averaged over any interval of 30 seconds maximum. Average current may be doubled when anode -supply voltage is limited to 80 volts. GL -1 P37 FREQUENCY -RESPONSE CHARACTERISTICS ANODE VOLTAGE =90 VOLTS ANODE VOLTAGE = 110 VOLTS z 0 lll ffi VI -4 10 l'i I' 1 1'111111 1 1°01 lllll ll 1 II I1 1 I II II I I 1111111 I I 1 MI 11 1111 II II 1 11 1 1111 1 I 1 11 1111 1 x ll NE E 11111111 I 1111 I I 1 1 lllllll 1111111111111111111 II 111111111 II 1111111111111111 111111111111 111111111111111M IRIIIIIIIIIII ininnun 1111111 III 111111111 inn 1111111 11111111111 11111 II III II 11 1 11111 11111111 1 11 1 llllllmum. ..... III 111111111 II 1 111111 1 I, I I -111111111111n1 1 111111111111 1 umn 1111111111 I 1 I 1111111m1 I in II 1 1 llll!1:11.11" l ....III 1111111 III 111111 1 111 F. ; l : 1 III m llllllll16 llllllllllll 1111m1 u111m1 11111111111111 1 l 11 HhHi-4I .11III V II n Inn di-,n. II 11I 11111 II 11 lllll 111111 1 1 I IV II 1111111 I 11111111111 1 III 171 ii Mil l ..! 111 lllll 11CIIII 11111 no i llllll 1111111 II 11111111 1 ..__ 1111111111111 II I 111 1 11111 . Ill 11111111 I II 111111111 I 1111111111 I 1 11111 II 11111 11 rmn 1111 11 11111 11 1 111 1 1 I I II II o r llll II llllll 111 llllllllll 1 1 I I 11111 I III 111 II 111111 11111 III 11111PM 1111111 II II 1 III "ImIre,1 ""11 11111111111 II III 1 1111 llllll num.. 11111111111 1 11 1111 1 I , II 1111111111111 III 112111..""tiI411111111111111 II 11 III 1;19 I 11 1 411111 II II II IlkIIIII I 111111 I' 1 llllll NI III III I 1 1111111 I 1 1111111111 lllllll 1111 1 1 II 1111 llllll 1 1111111 111111 I 11 111111 11111 II I I llllllllllllll 11111111111 11111 III I I I 1111111111111111 I iniminnim II 11111111 I 111111 111111 /111111 11 II 1 11111 lllllll 11111111 I 111111 111111111 11111 111111111 11111 1111 1 I I 1111 I 1 1 1111 11111 11 1 I I 11111111111 II 1111111 1111 II 1111 II 1111 II I 1111 II 1111 I I II 11111 11 I 1 11 111 1 111 1 11111 IN 11 1 11 1 111111 1 1 1111111111 III 111 1111 11 I I III 11111 1111111111111 lllllllllllll 111111 111111111111 111111111 1 1 1111111 I 1 1111111 I I 1 11 I III 1 I I I 1 1 II II 11111 11111111 1 1 1 I II 1 I II 1 I 1 1111 111 1 I III I llI1 1 lllll IIIIMIII I III I I III 111 llll 11111 1111 1 111111111 I m in 111 1 n11111111 11 1 1 1 111 111 1111 111111111 1 111 1 II in I III 1111 1111 11111111 I 1111 III III 11 11111 1111 I II II 111111 1111 1111111 III III 11111111111111111 1111111 I 1111 1011111x111111 .11 1 111 I II 1 lllll 1111111 11111 1 11 .1 III I 1111111111 1111 I II 111111 II III II II II III I 1111111111111111 1 111 1 1111 1 II "11111 II II k: EMMEN lllllll I 111111111 1 11 x11111 1 h.. II II 1 I 111111" 11111111 11111111I 111 I ll11111111 i I I 1 11 1111111111 1111111111 111111111 1111111 1111111 11 : EMMA UM Notion l 111 III IllIllIII .0111111111111 If '11:111: lllllll 111 111111111 II 1 1111111 11 11 I II 1111 unni III, lllllll 11111111 I 1 RI 1111 11111 I 11111 1111111111111111111 111111111111111111 III 1111111111 1111 1 111 II 111 11111 11111111 11nnniu " "'""1,1 111111111 III 111111111 lll 111 llllll 111111111 lll 111111111 1 MI1 MB II II 1111 11111 I 111111111 1111 111111 I 1 1 11111 I I I III lllll 111111111111111 R111 II 1 111 I lllll 1111111111111111111 111111 1 111 111 IMEINI111 llllll 1111111111111 111111 1111 1111111111 111111111111 lllll 11111 11111 I III 1111111111 I II I 1 11111 III II II 11M M lll 111111111 lll II II I I I 1 1111 1111 I 1 111111111111 llllllllI I I I 11 II lllllll I lllllll III I III I II 1 I 11111 1111 II I 1111 11 1111 II 1111111111111 II IMMII I I I 1 1 1 II I 1111111 II ll 11111 1111 I 111111111 I 111111111 II 111111111111 III II III 1111 II 111 11 I IN I 11 1I II II RI 1111 1 11111111 III II III 111111 1 I I I I III innU I 1111 1 III III l 1111111 1 1 III III II HI III lllllll IIIIIIII 11111111 III II nun 1 1111 91. III 1111 II 1111111111 I 1 11111 i , III 1111 II LI 1 Ul III I m11111111 I. 1 1 II 1111 1 II 1111111 111 1 11 111 1111111111 1 I 11111111 1111111 II 1111111 II I 1111 III 1111 III I II 1 111 1111 II 11 1111111 III n II I 111111 I 11'1 1 1 RIM I 11111 I III 1111111 I 11111 11 I II 11111 11 I 11111 II 1 111 1 11111 11 II Ill IIIU II 1 1 111 Ill 111 '1111 II qii 111111 I I I Ild 111111 H Il I I 1IIIIII 1 II 111 11 1 I I l I lllll 111 11111 11 ll k I 1 I 20 40 100 200 400 1000 2000 4000 10000 20000 LIGHT NCOULATION FREQUENCY IN CYCLES PER SECCP0 K -69087-72A251 8-18-48 10 8 z 6C >- cr cc F- 1-40 Ftn > < 20 Lai CC S-4 PHOTOSURFACE SPECTRAL SENSITIVITY CHARACTERISTIC FOR AT AEQLLUALWVAAVLEUE_SENOGF-RHASDIANT FLUX S-4 PHOTOSURFACE SPECTRAL SENSITIVITY CHARACTERISTIC TO TUNGSTEN LIGHT AT 2870 K 140 GL- 1 P37 En -289 PAGE 3 12-48 120 100 S so 60 40 20 --- ---- ---- WAVELENGTH -ANGSTROM UNITS 3000 5000 K-8639625 4-27-44 K -69087-72A249 GL -1 P37 AVERAGE ANODE CHARACTERISTICS 14 EIMUNINNOMM IMMEMMEUMMERTMEMSTIO minlIMMMEMMMEMMUlft WPM 1XIMOVAIIII3161MOOMNFIMhnONSMILMtil UU M 7000 9000 WAVELENGTH IN ANGSTROMS 12 11000 13000 8-18-48 10 4 2 Inn P" 0 25 K -69087-72A250 "a-Akar..... 50 ANODE VOLTAGE IN VOLTS 75 100 8.18-48 GL- 1 P37 ETI-289 PAGE 4 12-48 I" MAX 16 DIA. 5" MIN. CATHODE -1 14 MI 32I" MAX, DWARF.. SHEL SMALL 4 -PIN Ise -8MAX. CATHODE TERMINAL 'I" MAX. I -8 DIA. DIRECTION OF LIGHT NC CATHODE NC ANODE TERMINAL N-15125AZ OUTLINE PHOTOTUBE GL -1 P37 8-4-48 Electronics Deportment 12-48 (9M) Filing No. 8850 GENERAL ELECTRIC Schenectady, N. Y. GL- 1 P40 DESCRIPTION AND RATING ETI-290A PAGE 1 9-51 PHOTOTUBE DESCRIPTION The GL -1P40 is a gas phototube with high response to red and near -infrared radiation. Be- cause of its high sensitivity, it is recommended for use in sound reproduction, light -operated relays, and light -measurement applications utilizing an incandescent light source. The GL -1P40 is similar to the GL -930 except that it is provided with a non -hygroscopic base which insures a value of resistance between anode and cathode pins about 10 times higher than conventional bases under adverse operating conditions of high humidity. As a result, more output for a given light input is obtainable under high -humidity conditions. +TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Number of electrodes 2 Electrical Spectral response S-1 Completely revised. GENERAL ELECTRIC Supersedes En -290 dated 12-48 GL- 1 P40 ETI-290A PAGE 2 9-51 TECHNICAL INFORMATION (CONT'D) Luminous sensitivity* 0 cycles 5000 cycles. 10000 cycles Wavelength of maximum response Sensitivity at maximum response Dark current at 90 volts Gas amplification Direct interelectrode capacitance Minimum 90 7000 Bogey Maximum 135 205 microamperes per lumen 111 microamperes per lumen 101 microamperes per lumen 8000 9000 angstroms 0 0135 microamperes per microwatt 0.1 microampere 10 2.4 micromicrofarads Mechanical Data Window dimensions, minimum Seated height to center of window Mounting position-any H. by inch h. inches MAXIMUM RATINGS, ABSOLUTE VALUES Anode voltage, d -c or peak a -c Peak cathode -current density Peak cathode current Average cathode current** Ambient temperature 90 max volts 100 max microamperes per square inch 10 max microamperes 3 max microamperes 100 max C MINIMUM CIRCUIT VALUES D -c load resistance With anode -supply voltage of 75 volts or less For d -c currents above 3 microamperes 01 megohm For d -c currents below 3 microamperes no minimum With anode-supply voltage of 90 volts For d -c currents above 2 microamperes For d -c currents below 2 microamperes 2 5 megohms 1 megohm *Given for conditions where a Mazda projection lamp operated at a filament color temperature of 2870 K is used as a light source. The method for determining sensitivity employed a 90 -volt supply and a 1.0-megohm resistor. For the 0 -cycle measurements, a light input of 0.1 lumen was used. For the 5000- and 10,000 -cycle measurements, the light input was varied sinusoidally about a mean value of 0.015 lumen from zero to a maximum of twice the mean. **Averaged over any interval of 30 seconds maximum. Average current may be doubled when anode -supply voltage is limited to 70 volts. GL -1 P40 AVERAGE ANODE CHARACTERISTICS GL -1 P40 ETI-290A PAGE 3 9-51 16 14 12 ffi to e R 6 4 2 0 20 40 60 80 100 ANODE VOLTACE IN VOLTS K -69087-72A253 8-18-48 S-1 PHOTOSURFACE SPECTRAL SENSITIVITY CHARACTERISTIC FOR EQUAL VALUES OF RADIANT FLUX AT ALL WAVELENGTHS 160 140 120 III III I 111111111111111111111111111111111111 1111 100 80 60 11.11111111111111111111111111111" 40 20 11111111111'111 1 1 1 11 111111 1L1I II1I1 1 111111111111111 111111111111111111 III 411111111 41 3000 5000 7000 9000 IWO 1300 WAVELENGTH IN ANGSTROM UNITS K -69087-72A406 'Revised drawing. 9-19-50 GL -1 P40 ETI-290A PAGE 4 9-51 I31-6"MDAIAX. 5" f -T MIN. A 13" 16 MIN. CATHODE BASE NO. B5-10 k A 2-21 MAX. 3r J 16MAX. 511 3" 8-32 tz._1 .' 5" MAX 'me -I16 DI A CATHODE TERMINAL NC CATHODE NC ANODE TERMINAL K-8070703 DIRECTION OF LIGHT Outline Phototube GL -1P40 8-4-48 9-51 (I1M) Tube Department, Electronics Division GENERAL d ELECTRIC Schenectady, N. Y. GL -1 P39 DESCRIPTION AND RATING ETI-295 PAGE 1 5-49 PHOTOTUBE DESCRIPTION The GL -1P39 is a high -vacuum phototube with high sensitivity to light sources predominating in blue radiation, and negligible sensitivity to in- frared radiation. It is useful in light -operated relay, measurement, and color -control applications. The GL -1P39 is similar to the GL -929 except that it is provided with a non -hygroscopic base which insures a value of resistance between anode and cathode pins about 10 times higher than conventional bases under adverse operating conditions of high humidity. As a result, more output for a given light input is obtainable under high -humidity conditions. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Spectral response-S-4 Sensitivity at 4000 angstroms Luminous sensitivity* Wavelength of maximum response Direct interelectrode capacitance Maximum dark current at 250 volts 0.042 microamperes per microwatt 45 microamperes per lumen 4000 500 angstroms 2.6 uuf 0.005 microampere Mechanical Data Mounting position-any GENERAL ELECTRIC GL -1P39 ETI-295 PAGE 2 5-49 TECHNICAL INFORMATION (CONT'D) MAXIMUM RATINGS, Absolute Values Anode voltage. d -c or peak a -c Average cathode current** Peak cathode current Peak cathode current density Ambient temperature 250 max volts 5 max microamperes 20 max microamperes 100 max microamperes per square inch 75 max C MINIMUM CIRCUIT VALUES D -c load resistance 1 megohm *Given for conditions where a Mazda projection lamp operated at a filament color temperature of 2870 K is used as a light source. The method for determining sensitivity employed a 250 -volt supply, a 1.0-megohm load resistor and a light input of 0.1 lumen. With daylight, value is several times higher; to light from a high-pressure arc, many times higher. **Average over any interval of 30 seconds maximum. GL -1 P39 AVERAGE ANODE CHARACTERISTICS 5 MMINIMMEMEMEMMIMMEMEMMUMMMUMMEMMEMEMEMMEMMEMMEMMINIMMEMMINIMME MOIMMOMMOMMEMMEMMUMMUMMIIMMIUMMUMMEMMEMINIMMEMMOMMOOMMEMMIN MMENEMMOMMOMMEMEMOMMEMEMMUMMAIMMEMMUMMIIMUMMERIOMMOMMOMMII MmEoMmEmMuMmEmLMoOmMmMiEnMuOMmMmEoMmEmMoMEmMmMuEmMuMqEMrMsEuMmOwMaMOmMvMoOoNmIkMoPMmPmUuPmOmMoOMmMmEuMmImN mimmmmmummmmmmummmmummmnmmimwmTmm-mm1m1mw...m.m.m!o.m.mmatimmummummmoommmmmonmOiMnMEuMmMmIoIMmMmO minnommilimmmiimmummummvumwommunnimmummommimmummumm 4 mmmmmmmimmmlwioouummialmmmmommmimmmmnmmmmumgroiomummmammmumauwmmmmmmAmmumuommom:msmmommmmmmmommieommommummmomimmmmmmmnomoimmuummmiummummm5mmmmmmiu.ummumuim.mmumimmio.mmmmmmmmmumumummmuummmmu.ommmmm.mmmammuo_umolmusmvmumomimmmmiimmmulmnmimmmioumruummsmmimommammammmuvmommmumoummummmmmmumimommmmumumumommmmmmmummuumommmmmovmuwmmummrmmmssmumaumoomommmmmlmmmumummammmummuumummmummmummmmmmmmuummimommmmiumomummmslmmmmm 3 mmummlinmiuwiummmvimmimmmarummumnlm.momu;iimmmmmmmnumommmmwmmomumomrmmmmommmmmummmm,momumom-umummmo.mmmmmmm.mmumuu.mommumm.oummmmmm..momoom..omommm..mmmmmwm.mupomoummomommmmmmmmmmomumommmmumuommmmmmmmumomummmmmimmiwmmsm.mmmmamao.mavmvvx.uaimaaixmyommmm.mammmmmu.mumuoom.mmummmm.wumummmm.ummiuaw.mumnmummmmumuwxmmommmmuuommmuiammmummlmmummumlmmmmumouummmmmmmmmuummmmmmmmmuuouommmmmmmmuummmmmmmmm iimmrmpatm;miuammmmmwuommmmuommmmiunmmuummmmoommmmoommmmuommmmamxissuummmmummummunmAmmummimsoammmmomt 2 Iwrcnimaiuormmmimmummmmummomummmmommmummmummomummmmsmmnumomismommunmmmumommmommuommummmmmmummimmummommmmmmmuumommmmmimummnummuummmmmmoo.mmmv,oornmmmsmummsommummmmmomommmommimmmmnamvavurAi1maaam.mmmmm.momoum.mmmm.mmmom.muunu.wmmnmmmmmmummoommuimmmwmmmmmmmummnuumumummmmmmmmmmms mimimnigrswtm-iimmmimsomommmMuImNImMuMmIHmNuImMmMOuMmMmEMwSmEoMmOUmMuMmIMmMaVxImIMiMnEoMMmUmMuMEmMmMuImIMmMuEsM 1111,AMMEMINIMMOMMEMEMMEMMEMMEMIMMIUMMOMINIMMOV1601111MMUMEMEMMEEMM NAMMOMMONOMMUMMOMMMUMMEMEMMEMEMOMOMMEMERIOIUMMITAIMMEMEMOM FIMIMMEMMEMMIONMEMMEMMINIMMEMMUMMININUMEMOMMIUMWW1MMOV.DOMMEMEMUM UMMOMMIIMMEMEMMEMOMMOMMINIMMIUMMEMMINWOMMEMAMUMMUMMEMMEMEM 1 UMMINIMUMMEMMEMOMMOMMEMEMEMEMMOMMEMMOMMUOMMEMWOOMMUMEMEMERMEM 41111111111MMEMMIMMMEMMMINIMMMEMOIMEMESIMMUNILUAMMOMERMAMEMIMUMEMMEMEM mm immokmimmiliMMIMMMUMMEMEM SniMMEMMEMMERMOMMUMMEMMOMMUUMEMUMMOMMUMMUOURRAMWOMMEMONMEM IAMMEMMEMMEMEMINIMMINIMMUNEMMUMMEMMEMMEMMEMMEMOOMMOIMMEMMEMMUM AMMOOMMEMMEMEMINIUMMEMEMMMEMINIMMOMOMMUMMEMMOURIMIIIMMIMMEMME MEMMININIMEMMINIMEMMEMOMMEMEMEMMEMEMMINIMMEMEMMMOULMIMMEMEMEMEM MINIMMENMEUMEMMEMMUMMEEMEMMEMIMMEMOMMENSINIMMMOMIOMMEMEMMEME MEMEMMEMMEMOMUMMINIMMEMMEMMUMMEMMEMOMMERMINIMMOMMOLVEMMEMMEEMM MIMMINIMMEMMOMEMMUMMEMEMMMINIUMMINIMMENUMMUMEMOMMIWISIMMEMMERNM MMUMOMMEMOMMMEMAMMEMMUMMOMMUMMEMMEMMUMMIOUNNEUMWORMUNUMENO 0 50 100 150 200 250 300 ANODE VOLTAGE IN VOLTS K -69087-72A252 8-18-48 GL -1P39 ETI-295 PAGE 3 5-49 S-4 PHOTOSURFACE SPECTRAL SENSITIVITY CHARACTERISTICS FOR EQUAL VALUES OF RADIANT FLUX AT ALL WAVELENGTHS 100 il S-4 PHOTOSURFACE SPECTRAL SENSITIVITY CHARACTERISTIC ,FOR AT ELQLUAWL AVVALEUESENOGF RADIANT HS FLUX 80 F- z D 60 >- I - cc )- 1- 40 wz(75 U) <17_ 20 cr Annn 4000 5000 6000 WAVELENGTH -ANGSTROM UN ITS K-8639625 7000 6000 4-27-44 GL -1P39 ETI-295 PAGE 4 5-49 CATHODE BASE NO. B5-10 OUTLINE GL -1 P39 PHOTOTUBE 13" MAX DIA. 5IT16MIN. 2-2 MAX. 3= MAX. 16 18-32 CATHODE TERMINAL CATHODE NC 15"MAX 16 DIA. NC NC ANODE TERMINAL 5-49 (10M) Filing No. 8850 DIRECTION OF LIGHT K-8070703 8-4-48 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL -5581 DESCRIPTION AND RATING ETI.296 PAGE 1 5-49 PHOTOTUBE DESCRIPTION The GL -5581 is a gas phototube with high sensitivity to light sources predominating in blue radia- tion, and no response to infrared radiation. It is therefore, particularly suitable for use in sound reproduction involving a dye -image sound track in conjunction with an incandescent light source. The tube may also be used in measurement and color -control applications. Because the GL -5581 has no response in the infrared region where dye -image sound tracks have marked transparency, masking of the dye -image modulation by infrared transmitted through the film is avoided, and the dye -image modulation of either variable -area or variable -density sound tracks is reproduced essentially to its full degree. The luminous sensitivity, anode characteristics, and structure of the GL -5581 are comparable with the same properties of Type GL -930 to permit use of the GL -5581 with minor circuit changes in motion picture and other equipment designed to use the older type. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Spectral Response-S-4 Wavelength of maximum response Direct interelectrode capacitance 4000 t 500 angstroms 2 6 uuf GENERAL ELECTRIC GL -5581 ETI-296 PAGE 2 5-49 TECHNICAL INFORMATION (CONT'D) These data are for reference only. For design information refer to specifications. GENERAL Sensitivity at 4000 angstroms Luminous sensitivity At 0 cycles At 5000 cycles At 10,000 cycles Gas amplification factor Dark current at 90 volts Mechanical Data Mounting position-any Min Avg Max 0.125 microamperes per microwatt 75 135 205 microamperes per lumen 124 microamperes per lumen 108 microamperes per lumen 5.5 0.050 microampere MAXIMUM RATINGS, Absolute Values Anode voltage, d -c or peak a -c Average cathode current* Peak cathode current Peak cathode current density Ambient temperature 100 volts 3 max microamperes 10 max microamperes 100 max microamperes per square inch 75 max C *Average over any interval of 30 seconds maximum. Average current may be doubled when anode -supply voltage is limited to 80 volts. MINIMUM CIRCUIT VALUES D -c load resistance With anode -supply voltage of 80 volts or less For d -c currents above 3 microamperes For d -c currents below 3 microamperes With anode -supply voltage of 100 volts For d -c currents above 1 microampere For d -c currents below 1 microampere 0 1 megohm no minimum 2.5 megohms 0 1 megohm GL -5581 PHOTOTUBE AVERAGE ANODE CHARACTERISTICS GL -5581 ETI-296 PAGE 3 5-49 12 IMMEMEMMEMEMMEMMUMMIMMEMMUSEMMINIMMMEMMIUMM MMMMMMM MMINIMMIM MMMMM MMEMVOIAMMEMEMEMMUTAMOMMIIMMEMEMEWQW MMOIINMIMMWMOEMMMEIMNEEMMEMMIOMMMMOOMMMMMEMMMWOIMIMMIMNEIMMMUEMMEEMMMEIMIEMMMMEEMMEMMOMMOMMEMMEEMMEMMENMIMUOMMMIMOEMMMMEMMMMMIUMMMIEUMMAMIIPMAMMIEMMEMMOISIIMOMNEOMM7M0U4WMAMNIMIEMMMMIEMMMEMMIMUEMLMCIVWAAMXM =MWMMINMIMMMMMMEMMMEMMEMMMMMOMMMMMEMMOMMEMMMEEMMMEMMMEMMMMMMIM1M1E.M1M1E1M11M1U1M1MMUEMMMMUOMMMMEEMNMNOOMMMMMUMMMMMEMMMMMEMMIMMEIMtOiMAUMMMOEIMMMMIOOMNMMOMMMI&MMUMMMMIMNMMIMUEMMMMIMIIMNMEIMMFMAOMWMNIINM MIIMMEMMEMIIMMEMMEMMON MMMMMMM EINEM MMMMM MOW MMMMMM IIIMMEMOMMEM MMMMM 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-69087-72A254 8-15-48 GL -5581 ETI-296 PAGE 4 5-49 5-49 (DOM) Filing No. 8850 S-4 PHOTOSURFACE SPECTRAL SENSITIVITY CHARACTERISTIC FOR EQUAL VALUES OF RADIANT FLUX AT ALL WAVELENGTHS 100 S-4 PHOTOSURFACE SPECTRAL SENSITIVITY CHARACTERISTIC FOR EQUAL VALUES OF RADIANT FLUX AT ALL 9/AVE ,ENG 'HS 80 z 60 >cc cr cc >I-- 40 wz(75 (r) w .4 20 w 3000 4000 5000 6000 K-8639625 WAVELENGTH -ANGSTROM UNITS OUTLINE GL -5581 PHOTOTUBE ,r MAX '16 DIA 5" MIN 7000 8000 4-27-44 13° M. MIN CATHODE BASE NO. B5-10 22MAX 3 -MAX. 16 8-32 CATHODE TERMINAL CATHODE NC 5"MAX 16 DIA. NC NC ANODE TERMINAL DIRECTION OF LIGHT K-807070E3 lectronics Department 8-4-48 GENERAL ELECTRIC Schenectady, N. Y. GL -1P21 DESCRIPTION AND RATING ETI-31$ PAGE 1 10-50 PHOTOTUBE DESCRIPTION The GL -1P21 is a high -vacuum multiplier photo tube characterized by extremely high sensitivity, very small d -c dark current, freedom from distortion, and an equivalent noise input of only 5 X10-13 lumen at 25 C-features which adapt it particularly to applications employing a collimated light beam such as photoelectric spectrometers, astronomical telescopes, and scintillation counters with "light piping." In phototubes of the multiplier type the photo current produced at the cathode is multiplied many times by secondary emission occurring at successive dynodes. The GL -1P21 can multiply feeble currents produced under weak illumination by an average value of 2,000,000 times when operated at 100 volts per stage. Since maximum spectral response occurs at approximately 4,000 angstroms, the tube has negli- gible response to infrared radiation and high sensitivity to blue -rich light. The sensitivity to incandescent light depends on the color temperature of the source. Under normal operating conditions the output current of the GL -1P21 is a linear function of the exciting illumination. The frequency response, since secondary emission occurs almost instantaneously, is flat up to frequencies at which transit time and capacitance effects become the limiting factor. In addition to those mentioned the GL -1P21 is recommended for all other specialized scientific applications where very low light levels are involved. The requirements of such service ex tremely low equivalent noise input, high photosensitivity, very high secondary -emission amplification, and very small d -c dark current are all features of this tube. GENERAL ELECTRIC GIL-11321 ETI-315 PAGE 2 10-50 TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Spectral response-S4 Wavelength of maximum response Dark current at 1000 volts Interelectrode capacitances Anode to dynode No. 9 Anode to all other electrodes Mechanical Data Cathode dimensions, minimum* Seated height to center of useful cathode area Mounting position-any 4000 t 500 angstroms 01 microampere 4 uuf 6.5 uuf is by is inches 1 is A inches MAXIMUM RATINGS Anode -supply voltage, d -c or peak a -c** Supply voltage between dynode No. 9 and anode, d -c or peak a -c Peak anode current Average anode current Averaging time, maximum Ambient temperature 1250 volts 250 volts 1 0 microamperes 0.1 microamperes 30 seconds 75 C CHARACTERISTICS 100 volts per dynode stage and 100 volts between dynode No. 9 and anode Minimum Average Maximum Anode dark current, d -c 0.1 microamperes Sensitivity At 4000 angstroms 74,000 microamperes per microwatt Luminous# 40 80 amperes per lumen Current amplification * * * 2,000,000 input 75 volts per dynode stage and 50 volts between dynode No 9 and anode Sensitivity At 4000 angstroms Luminous# 11,000 .. . microamperes per microwatt 12 ... . amperes per lumen Current amplification * * * 300,000 *On plane perpendicular to indicated direction of incident light. * *Referred to cathode. -I-Dark current due to thermionic emission and ion feedback may be reduced by the use of refrigerants. For maximum signal-to-noise ratio, operation below 1,000 volts is recommended. #For conditions where a Mazda projection lamp operated at a filament color temperature of 2870 K is used as a light source. A light flux of 10 microlumens from a rectangular aperture approximately 0.8 inch long and 0.2 inch wide is projected normal to the center of the castode. The load resistor has a value of 0.01 megohm. The applied voltages are as indi- cated. The sensitivity is independent of frequency up to frequencies at which transit time becomes the limiting factor. ***Ratio of anode sensitivity to cathode sensitivity. ****Defined as the value where the rms output current is equal to the rms noise current determined under the following conditions: 100 volts per stage, 25 C tube temperature, a -c amplifier bandwidth of one cycle per second, tungsten light source 2870 K interrupted at a low audio frequency to produce incident radiation pulses alternating between zero and the value stated. The "on" period of the pulse is equal to the "off" period. The output current is measured through a filter which passes only the fundamental frequency of the pulses. 0 EQUIVALENT NOISE INPUT IN LUMENS 0 0 0 .40,, .1 ril , ' .1 . '41'1-* 0 MN.Eo...sMmisMummIIuIiImmIIImmIIIiImuImIIuImImIMImNIMmMI IIIiIIiIM,I u1I0nM1o1M1m1U11uN1m1II1M1m1M1o1I1uI1In1I1IwI1M1o1M1u1I1InI1Iu1IIMmIIMIImWIIM1u11IuM11nM1u1I1mN11IuM1111IM1111M11M1I11II11I11M1111MI1IIMI1NMMIIIMNMliIMIMMIINIMIIMNIMIIMIMEINMMMMIIMIEMIIMMIMEINMMIMMIIMIMIIIIIMIIIMIIIMMIMIINMINIMNIINIM, IMIIIMMI IPINIEMmNM 11111111111111111111111M111111111 N I 111011MINIMMIIIIIMMIMMINMIIIIIIIIIIMMUNI IIIIIIMMENIMMIMMIIMMIIIIMMIMMINIMIMMININMIMIIIMM IMUNIME11111111111111M11 li I 11111011111111111MIIIIMMINI1111111111111111111111111111111111111111111MEM1111111111011111111191M1111111111111111 """."1"1"""1""Mill I IMMW11141m" """9" 9111111111111111ffimo 111010111111111101"911111101111111117111 iNiiIMiiiMiiIiI1II1II1II1II1IM1M11IN1IfIfiIIII' I 1111111111111111111111111111M111110 1111111111111111011111111111111116111111111011111111 MINIUM M I PIM AIIMMISIIIIIIIIMINMMIA IIIIIIMIMI1111111111 111111111111111111111111111 II I NIMBI I 11111112111111111111111111111111111111111111 1111101111111111111111111111011111111111111011111111 111111111111111111100111110 III 11111110111 11111 111011111111111111111111111101111111111 1111M111111111111111111111111111111111111111111111111 1111111111111111111111111111 I H Nigh I ill 111111011111111111111111111 I IIIIIIRMIN1111611111111111111111111111111111111111111 1111 co 0 11111011111111111 0 111111 111111111110 1 III 1 1 11111111110111111111 111,111011111011 111111111111111,11111,11111111111111111111111111111111111111111110011111 limisimmuummurnompowinummulummoillmbionranumummullripmE 1111111111111111111111111 II 11 ._ I ma. 1, 0 1111111111011111,!11111.111110111111111111111,111111111111 0 11101 III II iIl III 1 11 'lb , 1 1 003 1111 [ 111111 1 1 ilillilliONIMINAPINiiiiiiiiiiillillilliiiiiinl MIllii iiIIIIIIIIIIiiiiiillilli irliiinummommuiphippippioliqpinuommillffill1111111 immumpili.immummmuummoug11,1111 N 0. 0 GL -1P21 ETI.315 PAGE 4 W-50 GL -1 P21 AVERAGE CHARACTERISTICS 100 0101111110101 10000000 11111111111111111111111100111111110111111011111111101111110111111101111111 1 0.0 1 11111 Z M 0 J CC W IL Q0_1C-DC w< CCCr aU2<J. au2.j 1.0 H -- CC H - O 0 C) H 110101 I pillopouPPP 1)1 111111111011 1111 11111111 III 1000000 100000 0.1 11111111111 ALAI1 10000 0.01 11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111 1000 11111111111111111111111111111111111111111111111111111111111111111111111111 4111111111111011111111111111111111111111111111111111111111111111111 11111111 111111111111111111111111111111111111111 0.0012 K -69087-72A376 75 100 VOLTAGE PER STAGE IN VOLTS 14, 00 125 5-4-50 S-4 PHOTOSURFACE SPECTRAL SENSITIVITY CHARACTERISTIC GL -1P21 ETI-315 PAGE 5 10-50 il 100 II III I lipmplibmimmplirnom 80 nl VIII 0 111111111111111111111111111111111111111111111 111I11 11111111111 II VIII 11111111 111111111111111 2,5 40 1111111111111111111111111111111111111111111111111111111111111111111 11 11111111,11,1111. 11,11 1,1 !!! 3000 5000 K -69087-72A373 70s 3000 WAVELENGTH IN ANGSTROM UNITS , iii 0 000 4-27-50 GL -1 P21 AVERAGE ANODE CHARACTERISTICS VOLTAGE PER STAGE= 100 1111111111 111111111111111 2 0 1 11111111111111111111_1111 I .5 110111111 logooligiii III I .0 morminumumm 0 . 5 11111 11111111111110111110111 1111111111111111111111111 K -69087-72A375 100 200 300 400 VOLTAGE BETWEEN ANODE AND DYNODE NO.9 IN VOLTS 4-27-50 GL -1P21 ET1-315 PAGE 6 10-50 OUTLINE GL -1P21 MULTIPLIER PHOTOTUBE CATHODE 1-316" MAX.DIA. 5" 16 15" -T-6 MIN. SMALL SHELL SUBMAGNAL II-PIN BASE 71" MAX. t 15'.:1. 3" ' 16-32 if" 3T -6 - MAX. V 11 EX: FDIRECTION OF LIGHT DY5 DY4 DY6 DYE DY8 CY3 DY9 DY2 P DY1 4 WK BOTTOM VIEW OF BASE DIRECTION OF LIGHT BASING DIAGRAM OF BULB WILL NOT DEVIATE MORE THAN 2° IN ANY DIRECTION FROM THE PERPENDICULAR ERECTED AT CENTER OF BOTTOM OF BASE. K-8277037 4-28-50 8-50 (11 M) Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. a APPLICATION DATA ETI-194A PAGE 1 4-48 GENERALOELECTRIC BALLAST TUBES ETI-1 94A PAGE 2 4-48 DESCRIPTION A ballast tube is essentially a constant -current device. It is a resistor whose resistance, at a certain critical temperature, varies with temperature so rapidly that, as the voltage across the tube varies, the current remains practically constant. The operation is the same on either alternating or direct current. Its function is to maintain a constant average current. All ballast tubes now manufactured have been designed for a specific application and, as a result have non -uniform ratings. Because of the wide range of voltage and current ratings possible, no attempt has been made to manufacture a standard line. Ballast tubes may, however, be used in parallel or with shunting resistors across the load to increase or decrease the current rating, or with series re- sistors to increase the voltage rating. These methods are described under the section titled "Operation." RATINGS AND DATA In rating a ballast tube, the voltage range over may be as much as two per cent above or below which the current is nearly constant is given to- the average current of the entire production. Theregether with a maximum and minimum current. fore, considering change of current with life and The upper limit of the voltage range is to be con- any other factors which may enter, the variation sidered the maximum voltage at which the tube of current in a circuit using ballast tubes may be may be operated. Over the voltage range the current as much as five per cent above or below the average. may vary two per cent above or below its average The limits given in the tube ratings cover these value. The average current of individual tubes factors. TUBE TYPE NO. GL -5621/B-6 GL -5622/B-25 GL -5624/B-46 GL -5623/B-47 GL-5620/FB-50 VOLTAGE RANGE IN VOLTS MINIMUM 15 7 8 8 5 MAXIMUM 21 16 18 18 8 CURRENT IN AMPERES MINIMUM 0.95 1.07 2.70 2.05 0.225 MAXIMUM 1.01 1.16 3.25 2.35 0.275 3" 3-4 MAX. Outline GL -5621/B-6 Ballast Tube N-24800AZ 4-22-47 BASE4G2-2 Outline GL -5622/B-25 Ballast Tube N-24801AZ 4-22-47 Outline GL -5624/B-46, GL5623/B-47 Ballast Tube N-24801AZ 4-22-47 Outline GL-5620/FB-50 Ballast Tube N-24804AZ 4-22-47 INSTALLATION ETI.194A PAGE 3 4-48 The ballast tube should be mounted, with the base down, in an enclosure rigid enough to stop flying glass since, should the tube develop an air leak, the mixture of oxygen with the hydrogen contained in the tube might become of the right proportion to explode. The envelope becomes quite hot during operation, and free circulation of air must be allowed in order to keep the temperature of the air near the tube below 150 F. Marked changes in env elope temperature will cause a change in the current. Since the entire load current must pass through the ballast tube, the socket and connections to it must be clean and make good contact to prevent heating at these points. OPER ATION The operation of the tube is shown by the characteristic curves in Fig. 1. As the voltage across the filament rises from zero, the resistance of the tube increases slowly in the same manner as most metals. As the lower end of the operating range is reached, the resistance of the filament increases quite rapidly with temperature, so that further increase in voltage causes practically no further increase in current. As the upper end of the operating range is reached, the resistance again becomes nearly constant. A still further increase in voltage causes an almost proportional increase in current as illustrated in the curves of Fig. 1. This operation of the tube can be seen by observing the filament. As the voltage across the tube is increased from zero and approaches the lower end of the operating range, a small section in the middle of the filament will become red hot. As the voltage is increased further, the length of this redhot section increases until the entire filament is visibly hot. This represents the end of the operating range and any increase in voltage will overheat and damage the tube. Operating the tube above the upper limit of voltage will result in excessive ex- pansion and contraction of the filament as the voltage varies; this will cause the wire to stretch out the coils of the filament or to knot, which will increase the current and speed up the destructive process already started, resulting, shortly, in fila- ment burn -out. If a steady voltage of a value in the middle of the operating range is applied to the tube continuously, its life will be tens of thousands of hours. Opening and closing the circuit with the resulting lengthen- UPPER CURRENT LIMII\ HIGH CURRENT TUBE AVERAGE TUBE f/LOW CURRENT TUBE 1- zI- -4- VOLTAGE RANGE b - w 0 LOWER CURRENT LIMIT ------------..----' // K-9033589 VOLTAGE Fig 1-Typical Ballast Tube Characteristics 1-9-45 ETI-194A PAGE 4 4-48 ing and shortening of the filament greatly reduces the life of the tube. If full voltage is applied to the tube, the circuit may be opened and closed only a few hundred times before the current is outside the limits or the filament is burned out. Thus the life of the tube will be determined entirely by its duty cycle. Because of the large thermal inertia of the tube, the temperature does not reach its final value immediately when the circuit is closed or when the voltage changes. Since the cold resistance of the filament is quite low, when the circuit is first closed the initial current may be several times the final value. After a few seconds, however, the current will have fallen to within 25 per cent of the final value, and from 15 seconds to several minutes, depending upon the size of the tube, will be required for the current to reach a steady state. The real function of a ballast tube is to maintain a constant average current. In Fig. 1 three curves are given to show the variation to be expected between tubes of a given rating. By choosing the proper coordinates, these curves are approximate for any ballast tube. Individual tubes may maintain the current to less than the range shown, but in any particular application variations up to plus or minus five per cent of the average may be expected. Typical characteristic curves indicating the limits of ballast action for the various types of ballast tubes are shown in Fig. 1A at the right. BALLAST TUBES CHARACTERISTIC CURVES GL -5624/B-46 3.0 I I GL -5623/B-47 1141 2.0 1 p Fr fil 1.0 I GL -5622/13-25 GL -5621/8-6 RECTANGULAR AREAS INDICATE THE LIMIT S OF BALLAST ACTION GL- 5620/F8-50 0 III 0 10 20 VOLTAGE IN VOLTS K-9033550 Fig. IA E 4-13-48 APPLICATION CIRCUITS# The commonest use of the ballast tube is to place it directly in series with the load as shown in Fig. 2 and Fig. 3. The graphical representation of the current and voltages in the circuit is shown in Fig. 4. When voltage is applied, the current which flows is determined by the intersection of the load characteristic and the tube characteristic. As the supply voltage varies the current remains practically constant. The load voltage remains practically constant because the tube voltage varies by an amount proportional to the supply -voltage variation. The tube used should have a voltage range equal to the variation in supply voltage. #Circuits shown in ETI-194A are examples of possible tube application and the description and illustration of them does not convey to the purchaser of tubes any license under patent right.: of General Electric Company BALLAST TUBE BALLAST TUBE K-9033575 Fig. 2-Connection for A -c or D -c Circuit 12-30-44 K-9033578 Fig. 3-Connection Using a Transformer BALLAST TUBE VOL AGE RANGE H HI I 6 I 8 % CuRRENT VARIATION 04 I i 1 I SUPPLY I .'11111 VOLTAGE VA RIAT ON 04 -.4.1. 437% 1210/...._12L2%. '?4Si 1.4 C -mu K-9033579 VOLTAGE Fig. 4-Ballast Tube in Series with Load 1-1-45 1-1-45 C B A TUBE VOLTAGE ETI-1 94A PAGE 5 4-48 JO SUPPLY VOLTAGE 0 CURRENT G H J K-9033580 Fig. 5-Vector Diagram for Inductive Load 1-1-45 A ballast tube may be used with inductive loads as well as with pure -resistance loads. Fig. 5 shows the vector diagram for such a load. The vector OE represents the normal supply voltage, while the vectors OB and BE represent the normal load and ballast -tube voltages, respectively. OH is the normal current. As the supply voltage decreases to OD or increases to OF, the ballast -tube voltage decreases to AD or increases to CF. This maintains the load voltage between OA and OC and the current between OG and 0J. If it is necessary to use a tube whose current rating is too high or too low, either the load or the tube, as the case may be, may be bridged with a resistor to carry the excess or additional current. Figs. 6 and 7 show these two connections. The operation of the circuit shown in Fig. 6 is identical with that shown in Fig. 2, the resistor being considered part of the load. This circuit is also recommended where close adjustment of the load voltage or current is required. The circuit shown in Fig. 7 is similar in operation except that the shunt current through the resistor, as shown in Fig. 8 increasing directly with voltage, spoils somewhat the regulation of the tube. In the latter case, the higher the value of shunt resistors used across the ballast tube, the better the regulation. This connection is not recommended except in cases where close regulation is un- necessary. K-9033577 12-30-44 Fig. 6-Circuit Using Tube with Too Large a Current BALLAST TUBE K-9033576 12-30-44 Fig. 7-Circuit Using Tube with Too Small a Current (Not recommended) I I I I TOTAL CURRENT BALLAST TUBE CURRENT z1-- UJ 1011 ce ce VOLTAGE RANGE lJ CUR RE NS =EMI RESISTOR K-9033581 VOLTAGE Fig. 8-Resistor Across Ballast Tube 1-1-45 ETI-194A PAGE 6 4-48 APPLICATION CIRCUITS (Contd.) The ballast tube may be used to maintain constant current in a circuit requiring variation of the load. A suggested circuit is shown in Fig. 9. Since the voltage across the ballast tube will vary with both the line voltage and load resistance (the potentiometer being considered part of the load) a greater voltage range will be required, and the ballast tube will use a greater percentage of power See Fig. 10 below. The minimum voltage across the ballast tube will occur with minimum supply voltage and with the load adjusted to the minimum point on the potentiometer. The maximum voltage across the ballast tube will occur with the maximum supply voltage and with the load adjusted to the maximum point on the potentiometer. Since this circuit draws a constant current from the line, varying the potentiometer will not cause a variation in supply voltage to other apparatus on the line. Ballast tubes may be used in parallel provided their voltage ranges are equal or nearly so. If their voltage ranges are unequal, good ballasting will occur only over that part of the voltage range which is included by both tubes. The current for any BALLAST TUBE K-9033582 Fig. 9-Circuit for Varying Load Voltage 1-9-45 voltage will be the sum of the currents in both tubes at that voltage. Ballast tubes cannot be used in series unless their current -voltage characteristics are identical. This can be shown by referring to Fig. 1. If two tubes, one having the maximum current and one the minimum for a particular rating, are used in series the current will be the same in both tubes at all times. At the value at which the higher -current tube starts to ballast, the lower -current tube is operating above its ballasting range and hence is over -loaded. Thus, the safe operating range of the combination is only that of the lower current tube. I: III I I I I VOLTAGE RANGE_ B C D K-9033583 MINIMUM POINT ON POTENTIOMETER lillkiglik MAXIMUM POINT ON POTENTIOMETER VOLTAGE Fig. 10-Ballast Tube in Series with Potentiometer, Load Across Potentiometer ilk '4IN E F 1-9-45 4-48 (9M) Filing No. 8850 Electronics Department GENERAL 0 ELECTRIC Schenectady, N. Y. r- GENERAL 4y ELECTRIC APPLICATION DATA En -195A PAGE 1 8-48 RESISTANCE VACUUM GAGES Supersedes ETI-195 dated 4-45 En -195A PAGE 2 8-48 DESCRIPTION The GL-5628/FA-13 and GL-5629/FA-14, used in a resistance vacuum gage possess features especially useful in providing a convenient method for measuring low gas pressures. With suitable associated apparatus, these tubes will provide a fast, continuous, direct reading. As the vacuum system is pumped down, a meter in the bridge cir- cuit reads the unbalancing of the bridge, thus providing an uninterrupted and instantaneous reading and enabling the observer to determine at all times the exact conditions in the system. The resistance vacuum gage differs from the Mc- Leod gage in that it gives an electrical, rather than mechanical, indication. Unlike the McLeod gage, it is also possible with this gage to take readings of condensable vapor, such as water vapor. These tubes should be used in pairs since in combination they provide a much more stable and reliable reading than if the GL-5628/FA-13 is used alone. TECHNICAL INFORMATION GENERAL CHARACTERISTICS (Indicator Tube GL-5628/FA-I3*) Number of Electrodes 1 Electrical Recommended range Maximum d -c voltage Resistance of average tube at 25 C. 0-600 microns 6 volts 7 ohms Characteristics of an average tube at 3 volts -25 C, ambient temperature: 0 microns pressure, dry air 75 microns pressure, dry air 195 microns pressure, dry air 1000 microns pressure, dry air Atmospheric pressure 180 milliamperes 226 milliamperes 271 milliamperes 327 milliamperes 353 milliamperes Mechanical Splice tubing Net weight, approx Shipping weight, approx inches diam. lime glass 1 ounce 3 pounds *It is recommended that this tube be used in a bridge circuit in combinations with the GL-5629/FA-14 Compensator Tube. GENERAL CHARACTERISTICS (Compensator Tube GL-5629/FA-14) Number of Electrodes Electrical Maximum d -c voltage Resistance of average tube at 25 C. Characteristics of an average tube at 25 C, ambient temperature: 1 Volt 2 Volts 3 Volts 4 Volts Mechanical Net weight, approx Shipping weight, approx 1 6 volts 7 ohms 90 milliamperes 140 milliamperes 180 milliamperes 218 milliamperes 1 ounce 3 pounds OPERATING NOTES ETI-195A PAGE 3 8-48 The GL-5628/FA-13 is used to measure the gas pressure. The GL-5629/FA-14, which has a filament identical with that of the GL-5628/FA-13, is sealed off under very high vacuum and is used to compensate for temperature and voltage changes. The GL-5628/FA-13 and GL-5629/FA-14 are usually sold in matched pairs since there is some variation from time to time in manufacture. For this reason single tubes purchased separately and at different times may not match. With the GL-5628/FA-13 the pressure indication is obtained as a function of the change in resistance of a heated tungsten filament caused by the cooling, by convection current, of the gas being measured. Since different gases have different factors for convection cooling, the calibration of the gage will not be the same for all gases. For example, the gage is much more sensitive to hydrogen than to nitrogen. Since the response of the gage is a current change, it may be used for recording and for controlto start and stop a pump-as well as for indica- tion. INSTALLATION The GL-5628/FA-13 and GL-5629/FA-14 may be mounted in any position, but should be pro- tected from excessive shock or vibration. It is recommended that the connection to the base of the GL-5629/FA-14 be clamped solidly or soldered to avoid difficulty with contact resistance. The GL-5628/FA-13 is provided with connection leads instead of a base and glass connection tubing for splicing to the exhaust system. This connection may be cemented on, or sealed to, another glass tube. Greater stability will be obtained if tubes are protected from heat and direct light rays. If used in pairs it is advisable to place the tubes together so that their temperatures will vary simultaneously. OPERATION GL-5629/FA-14 COMPENSATOR TUBE GL-5628/FA-13 INDICATOR TUBE Although the GL-5628/FA-13 connected in series with a milliammeter, may be used for rough meas- urements, it is recommended that an ordinary bridge circuit be provided with the GL-5628/FA-13 in one arm, the GL-5629/FA-14 compensator tube in the opposite arm, and variable resistances in the two adjacent arms. The bridge arrangement gives greater sensitivity than the GL-5628/FA-13 alone and the use of a compensator tube results in substantial independence from ordinary voltage varia- tion. 3" MAX. 116 DIA. 4V511 + I" 8 16 DIA. LIME GLASS The characteristics shown by the curves are MAX. approximate. Where a high degree of accuracy is required, the individual gage must be calibrated against a standard. In Fig. 2, of page 4, the dotted curves are the compensator characteristics plotted BASE in reverse. The distance between the origins repre- NO. A4 -3 sents the total voltage on the bridge; the inter- sections give the voltage division for various pres- sures. With the bridge balanced at zero pressure, the horizontal distances between the zero intersection and the intersection for other pressures furnishes a rough calibration for corresponding measurement taken on the bridge with a high -resistance volt- meter. These curves supply a convenient method for estimating the bridge sensitivity at various voltages. The calibration may change with wide variations in ambient temperature. Fig. 1 on page 4 illustrates the variation in current with pressure for two different voltages. FILAMENT TERMINALS .020" DIA. COPPER LEADS K-5302958 OUTLINE RESISTANCE VACUUM GAGES e MAX. I2 -I- MIN. 5-20-48 ETI.195A PAGE 4 8-48 300 2 200 FZ 100 GL-5628/FA-I3 APPROXIMATE PRESSURE -CURRENT CHARACTERISTIC VOI TS VOL K-8639661 300 200 100 200 300 400 500 600 700 800 900 1000 1100 PRESSURE IN MICRONS OF DRY AIR Fig. 1 GL-5628/FA-I3, GL-5629/FA-I4 APPROXIMATE CURRENT -VOLTAGE CHAR I =OR VARIOUS PRESSURES OF 1)RY AIR ---- &P\4') 't:' ,,..3 63X° ,10 SO 23 5-20-48 ...., \,, 100 0 K-8639660 8-48 (9M) Filing No. 8850 "..,r NS 1, Nai .........- --- ----... --s --- --"*". NOT- ONLY THE ZERO PRESSURE CURVE APPLIES 10 HE CONI-ENSA1OH TUEE. SEE NST,LLATION 8( OPEPATION FOR b<PLANAT ON DE DOT1ED OURV:S. ?-s P4/. e.,,i ..., 40_, N... Ns \6F 2 3 4 VOLTAGE ACROSS TUBE IN VOLTS Fig. 2 Electronics Department 5-20-48 GENERAL ELECTRIC Schenectady, N. Y. r la APPLICATION DATA ETI-261 PAGE 1 7 1 -46 GENERAL ELECTRIC VACUUM CAPACITORS ETI-261 PAGE 2 11-46 DESCRIPTION The vacuum capacitor is a high -voltage, vacuum capacitors are specially suited for high small -size vacuum -dielectric capacitor designed voltage circuits where stability of operation and for use on d -c, a -c or radio -frequencies. G -E small size are important factors. MECHANICAL ADVANTAGES Vacuum -tightness and strong mechanical joints are assured by the use of glass to metal seals. (The fernico is imbedded in the glass which adheres permanently to both inside and outside of the fernico cup.) Mechanical sturdiness is realized by using metals of sufficient strength and thickness to withstand vibrations of 20 G. The compactness of design required for high mechanical strength results in a vacuum capacitor which best utilizes the inside space and avoids long leads. Constructional features of a typical 7500 -volt capacitor are shown in the cross-sectional view of Fig. 1. The bell -shaped construction of the 16,000 -volt capacitor (see Fig. 2) minimizes circuit loss and also affords high -frequency operation. All G -E vacuum capacitors are provided with terminals which fit a standard 30 -ampere fuse clip, allowing rapid capacitor changes when desired. COPPER TERMINAL CAP (SILVER PLATED) SPOT WELD CARBON STEEL DISC (COPPER PLATED) STEEL TUBING 4 FERNICO HEADER .N NICKEL WIRE RING GLASS TO METAL SEAL COPPER CYLINDERS \ SPOT WELD COPPER BRAZING RING STEEL TUBING GL-IL38 Fig. 1-Cross-sectional View._of a 7500 -volt Capacitor \SPOT WELD CARBON STEEL DISC (COPPER PL TE) COPPER TERMINAL CAP (SILVER PLATED) STEEL TUBING FERNICO HEADER NICKEL WIRE RING GLASS TO METAL SEAL COPPER CYLINDERS ETI-261 PAGE 3 11-46 SPOT WELD COPPER BRAZING RING STEEL TUBING GL -1L31 Fig. 2-Cross-sectional View of a 16,000 -volt Capacitor ETI-261 PAGE 4 11-46 ELECTRICAL ADVANTAGES G -E vacuum capacitors are designed with sufficiently great internal spacing that d -c CAPACITANCE illlF voltages up to the maximum voltage rating may be applied. No de -rating is required for d -c applications with G -E vacuum capacitors. Similarly, capacitors may be placed in any series 5020 or parallel combination for use on d -c, a -c or radio frequencies. The coaxial cylinders which are brazed to the 5010 fernico headers introduce into an electrical circuit a minimum value of inductance, resulting in a high Q vacuum capacitor. 50 00 The vacuum construction allows operation at high altitudes and minimizes maintenance. Conditions of high humidity have no effect on 49.90 the capacitance of G -E vacuum capacitors. Moisture can cause a slight leakage current across the outside surfaces of the capacitor but this is usually only a momentary condition. With the capacitor operating the surface dries in a few seconds and external breakdown potential returns to normal. 49 80 -100 -50 0 50 100 150 TEMPERATURE DEG 0 K-9033913 8-8-45 Fig. 3-Temperature Coefficient Curve for a GL - G -E vacuum capacitors have a low tempera- 1L38 Vacuum Capacitor ture coefficient as is shown from the following curve. The temperature coefficient of the GL 1L38, as shown in the curve, from -50 C to +100 C is 27 X 10-6 mmf/mmf/°C. either direct current or radio -frequencies, over voltages may cause a discharge to take place internally. In most cases, this discharge is not injurious to the G -E vacuum capacitor, and The G -E vacuum capacitor does not depend when the overvoltage is removed, the capacitor upon a solid dielectric for its voltage insulation. will function as usual. Overvoltages should be For that reason, there is no dielectric to puncture avoided if there is sufficient power in the source if overvoltages are accidentally applied. On to cause melting of the electrodes. RATI NGS Vacuum capacitors are rated in terms of the may be applied to the G -E vacuum capacitor at following characteristics: various frequencies. This radio -frequency volt- Capacitance All G -E vacuum capacitors are rated at a nominal capacitance 5%. Voltage Rating G -E vacuum capacitors are rated to operate at a given peak voltage which may not be exceeded for continuous operation. Transient age may be impressed upon a d -c voltage, if the sum of the two voltage does not exceed the voltage rating of the capacitor. The current -frequency curve indicates the radio -frequency current which will flow through the capacitor when the maximum radio -fre- quency voltage is applied. voltages in excess of rated voltage are allowable up to the voltage breakdown limit given in the specifications. The total voltage across the vacuum capacitor (excluding transient voltages) shall be considered to be the sum of the d -c and a -c peak voltages. Operating Temperature G -E vacuum capacitors may be operated from -40 C to +65 C. However, if the ca- pacitor is carrying high radio -frequency currents, it is recommended that the ambient temperature be less than 50 C. Type of Vacuum Capacitors Voltage -frequency, Current -frequency Character- istics The voltage -frequency curve on the particular description and rating sheet shows the maximum G -E vacuum capacitors are made in two voltage ranges, 7500 peak volts and 16,000 peak volts. They are available in capacitance values from 6 micromicrofarads to 100 micromicro- allowable peak radio -frequency voltage which farads in both voltage ranges. APPLICA TIONS* For the most part vacuum capacitors are used in applications where their particular characteristics result in the greatest benefit to the user. Because of their compact size they are *Circuits shown on this page and those following are examples of possible tube applications and the description and illustration of them does not convey to the purchaser of tubes any license under patent rights of General Electric Company. PLIOTRON PLIOTRON L LI RIR2 APPLICATIONS (CONT'D) O VACUUM CAPACITORS L3 O L4 VACUUM CAPACITOR En -261 PAGE 5 11-46 C L55 K-9033970 10-20-45 Fig. 4-Electronic-heater Circuit Using Vacuum Capacitors specially suited for use as tank -circuit capacitors, and blocking and by-pass capacitors in diathermy and electronic heating equipment. Fig. 4 illustrates the use of four GL -1L33 capacitors as grid -blocking capacitors in a 1200 watt Electronic Heater for dielectric heating. In this circuit the B+ voltage is grounded in order to minimize hazard to the operator. * RESISTANCE AND INDUCTANCE PARASITIC COMBINATION K-9033966 10-20-45 Fig. 5-Oscillator Connection of Electronic -heater Circuit (Showing D -c Blocking Capacitor) Another example of the use of vacuum capacitors in electronic heating equipment is shown in Fig. 5. Shunt feed is used to supply the plate voltage, and a vacuum capacitor is used as a d -c blocking capacitor to keep the plate voltage from the plate coil. The capacitor em- ployed is a GL -1L23. In diathermy applications, vacuum capacitors may be used as in Fig. 6. The capacitors C5, C2, C3, C4 and C5 are employed as resonating and by-pass capacitors. STEP UP TRANSFORMER LI CI C5 NEON LAMP LINE RECEPTACLE LINE SWITCH W II L9 c21 L6 o PLIOTRON C C3 EARTH GROUND FOOT SWITCH RECEPTACLE K-9033585 C4 RELAY INTENSITY CONTROL R2 F2 FILAMENT WINDING Fig. 6-Typical Circuit of Inductotherm Unit with Surgical Attachment T C7 CASE 1-2-45 INSTALLATION AND OPERATION in general, the exact method of mounting G -E force to hold the capacitor firmly in applications vacuum capacitors will depend upon the circuit where vibrations will be encountered. in which it is used. There are, however, several G -E vacuum capacitors may be identified rules to be followed for maximum efficiency of readily as to proper capacitance by examining operation. the letter stamped in the header on one end. Symbols indicate capacitance as follows: Mechanical A 6 micromicrofarads The capacitor may be mounted in any posi- B 12 micromicrofarads tion. Mounting terminals should exert sufficient C 25 micromicrofarads ETI-261 PAGE 6 11 -46 INSTALLATION AND OPERATION (CONT'D) 50 micromicrofarads E 100 micromicrofarads The marked end of the capacitor is connected internally to the inner cylinder. For this reason it is advisable to connect the unmarked end to ground potential in those applications where a ground is permissible. This type of connection allows the outer cylinder of the capacitor to act as a shield to minimize the effects of nearby objects on the net capacitance of the unit. Electrical Vacuum capacitors should be mounted in such a way that the connections have ample current - carrying capacity. Fuse clips are not recom- mended for connectors if the current exceeds 10 amperes. A satisfactory connector may be made by drilling a hole approximately 0.550 inch in diameter in a block of copper or brass, splitting one side to allow the capacitor terminal to be inserted, and clamping the split sides together with a machine screw. To prevent overheating, it is recommended that the vacuum capacitor be mounted so that it is as far as possible from any direct radio - frequency field. Thermal ;1-1 cases where capacitors are connected to sources of heat, such as a hot radio -frequency coil, it is advisable to make the connectors of a large enough mass of material so that maximum heat radiation is obtained. Applications using air-cooled tubes may provide for venting a portion of the air so that it flows over the vacuum capacitor in the circuit. Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 11-46 (8M) Filing No. 8850 GL- 1 L21 DESCRIPTION AND RATING En -262 PAGE 1 11 -46 VACUUM CAPACITOR DESCRIPTION The GL -1L21 vacuum capacitor is designed for circuits where the peak voltages range up to 7500 volts. It is useful as a plate -tank and by-pass capacitor in radio -frequency oscillators or amplifiers. The GL -1L21 also serves as a neutralizing capacitor in radio -frequency amplifiers in conjunction with small, low -capacitance padding capacitors. The small size and compact construction of the vacuum capacitor permits circuits to be designed more compactly, allowing shorter leads than with air capacitors. Some of the more important advantages, in the design of high -frequency circuits, are listed below: 1. Vacuum capacitors are comparatively loss- free, since there are no losses in the vacuum dielectric and because the total capacitance is lumped into a size about 1 cubic inch. 2. Dust and other foreign matter have no effect on vacuum capacitors. 3. In communication applications, vacuum capacitors are extensively used as antenna coupling capacitors especially in aviation radio installations, where constant internal voltage breakdown is an essential requirement. 4. Internal voltage breakdown is constant and is independent of altitude, temperature, humidity and other factors because of the vacuum construction. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Electrical Capacitance t 5 per cent Maximum peak voltage 12 micromicrofarads 7500 volts GENERAL CD ELECTRIC GL -1 L21 ETI-262 PAGE 2 11-46 Ambient temperature Minimum Maximum TECHNICAL INFORMATION (CONT'D) -40 centigrade +65 centigrade Mechanical Maximum over-all length Maximum diameter Net weight, approx Shipping weight, approx 3% inches 1% inches 4 ounces 1 pound VOLTAGE AND CURRENT VS. FREQUENCY The curves of page 3 show the maximum allowable peak r -f voltage and maximum rms current for G -E vacuum capacitors when operated at various frequencies. An additional d -c voltage is permissible so long as the total voltage (d -c plus r -f) does not exceed the maximum allowable peak voltage as indicated by the dotted line shown on the curve. These curves apply when the capacitors are operated at an ambient temperature of 50 C and for normal operating conditions with natural air cooling. The correction curve below indicates the percentage increase or decrease in r -f voltage and current when G -E vacuum capacitors are operated at ambient temperatures above or below 50 C. (Note that the allowable peak voltage (r -f plus d -c) at any ambient temperature should not exceed the maximum as indicated by the dotted line of the curve shown on page 3.) Example Assume a GL -1L21 is to be used at a frequency of 30 megacycles and at an ambient temperature of 40 C. The correction curve indicates a correction of 118 per cent. The curves of page 3 indicate a maximum r -f voltage of 4600 volts peak and a maximum current of 10 amperes. Applying the correction factor of 118 per cent to these values indicates an allowable maximum peak r -f voltage of 5428 volts and a maximum current of 11.8 amperes. For operation at frequencies higher than those indicated, consult the Electronics Department, General Electric Company, Schenectady 5, New York. VACUUM CAPACITORS GL -1L21, 32, 33, 36, 38, 22, 23, 24, 25 AND 1L31 CORRECTION CURVE (PERCENTAGE VOLTAGE OR CURRENT VS AMBIENT TEMPERATURE) 150 140 130 Lcil 100 cOc L, 90 O so U CC 70 60 50 K -69087-72A7 10 20 30 40 50 60 AMBIENT TEMPERATURE IN DEGREES C 70 4-5-46 VOLTAGE AND CURRENT VS FREQUENCY (FOR OPERATION AT 50 C AMBIENT TEMPERATURE) GL -1 L21 E T I -262 PAGE 3 11-46 _WM Mil ME M= MMEMMEREMMEMMEMMEMMEMMEM IIII ....Imp. 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Y. GL -1 L22 DESCRIPTION AND RATING ETI-263 PAGE 1 11-46 VACUUM CAPACITOR DESCRIPTION The GL -1L22 vacuum capacitor is designed for circuits where the peak voltages range up to 16,000 volts. It is useful as a plate -tank and by-pass capacitor in radio -frequency oscillators or amplifiers. The GL -1L22 also serves as a neutralizing capacitor in radio -frequency amplifiers in conjunction with small, low -capacitance padding capacitors. The small size and compact construction of the vacuum capacitor permits circuits to be designed more compactly, allowing shorter leads than with air capacitors. Some of the more important advantages, in the design of high -frequency circuits, are listed below: 1. Vacuum capacitors are comparatively loss - free, since there are no losses in the vacuum dielectric and because the total capacitance is lumped into a size about 1 cubic inch. 2. Dust and other foreign matter have no effect on vacuum capacitors. 3. In communication applications, vacuum capacitors are extensively used as antenna coupling capacitors especially in aviation radio installations, where constant internal voltage breakdown is an essential requirement. 4. Internal voltage breakdown is constant and is independent of altitude, temperature, humidity and other factors because of the vacuum construction. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Electrical Capacitance ±5 per cent Maximum peak voltage 25 micromicrofarads 16,000 volts GENERAL ELECTRIC GL -1 L22 ETI-263 PAGE 2 11-46 Ambient temperature Minimum Maximum TECHNICAL INFORMATION (CONT'D) -40 centigrade +65 centigrade Mechanical Maximum diameterinches Maximum over-all length 4? -6- 1/8 inches Net weight, approx Shipping weight, approx 6 ounces 1 pound VOLTAGE AND CURRENT VS. FREQUENCY The curves of page 3 show the maximum allow- d -c) at any ambient temperature should not exceed able peak r -f voltage and maximum rms current the maximum as indicated by the dotted line of for G -E vacuum capacitors when operated at the curve shown on page 3.) various frequencies. An additional d -c voltage is Example Assume a GL -1L22 is to be used at permissible so long as the total voltage (d -c plus a frequency of 30 megacycles and at an ambient r -f) does not exceed the maximum allowable peak temperature of 40 C. The correction curve indicates voltage as indicated by the dotted line shown on a correction of 118 per cent. The curves of page 3 the curve. indicate a maximum r -f voltage of 4500 volts peak These curves apply when the capacitors are and a maximum current of 15.5 amperes. Applying operated at an ambient temperature of 50 C and the correction factor of 118 per cent to these for normal operating conditions with natural air values indicates an allowable maximum peak r -f cooling. voltage of 5310 volts and a maximum current of The correction curve below indicates the per- 18.3 amperes. centage increase or decrease in r -f voltage and For operation at frequencies higher than those current when G -E vacuum capacitors are operated indicated, consult the Electronics Department, at ambient temperatures above or below 50 C. General Electric Company, Schenectady 5, New (Note that the allowable peak voltage (r -f plus York. VACUUM CAPACITORS GL -1121, 32, 33, 36, 38, 22, 23, 24, 25 AND 1L31 CORRECTION CURVE (PERCENTAGE VOLTAGE OR CURRENT VS AMBIENT TEMPERATURE) 150 140 130 120 110 I- I=c 100 O Li 90 -4r 80 Ua- 70 60 50 10 20 30 40 50 60 K -69087-72A7 AMBIENT TEMPERATURE IN DEGREES C 70 4-5-46 GL -1 1.22 ETI-263 7-- VOLTAGE AND CURRENT VS FREQUENCY PAGE 3 1-461 (FOR OPERATION AT 50 C AMBIENT TEMPERATURE) 00 32 ummummommsmommesmown...mmommimmaillibmwmz,!*m mmmomrms m mom mmommuummungsms IE CD o 28111l.i1.n.1r.1m.1.1.i1n.1.n1.1i.a1.PrlEA..1P.1.O1.1.M1.1.M1.1.1.IW.1 .O..M. 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MM :E 2 11111 IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII 1111111111111111111111111111111 1 '3'0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 K -69087-72A6 FREQUENCY N MEGACYCLES 4.5-46 GL -1 L22 ET1-263 PAGE 4 11-46 UNMARKED END NORMALLY GROUNDED\ 1 A1.562" D IA. 4 25"+1" 32 32 3"+.L" -16 49"+ l" 16 MARKED END 2" MAX.DIA. 25.'4. 32 -32 CAPACITAN OE SYMBOL 11-46 (8M) Filing No. 8850 K-8639363 GL -1L22 OUTLINE 0 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 10-29-45 GL -1 L23 DESCRIPTION AND RATING ETI-264 PAGE 1 11-46 VACUUM CAPACITOR DESCRIPTION The GL -1L23 vacuum capacitor is designed for circuits where the peak voltages range up to 16,000 volts. It is useful as a plate -tank and by-pass capacitor in radio -frequency oscillators or amplifiers. The GL -1L23 also serves as a neutralizing capacitor in radio -frequency amplifiers in conjunction with small, low -capacitance padding capacitors. The small size and compact construction of the vacuum capacitor permits circuits to be designed more compactly, allowing shorter leads than with air capacitors. Some of the more important advantages, in the design of high -frequency circuits, are listed below: 1. Vacuum capacitors are comparatively loss - free, since there are no losses in the vacuum dielectric and because the total capacitance is lumped into a size about 1 cubic inch. 2. Dust and other foreign matter have no effect on vacuum capacitors. 3. In communication applications, vacuum capacitors are extensively used as antenna coupling capacitors-especially in aviation radio installations, where constant internal voltage breakdown is an essential requirement. 4. Internal voltage breakdown is constant and is independent of altitude, temperature, humidity and other factors because of the vacuum construction. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Electrical C§pacitance t 5 per cent Maximum peak voltage 50 micromicrofarads 16,000 volts GENERAL 0 ELECTRIC GL -1 L23 ETI-264 PAGE 2 11.46 Ambient temperature Minimum Maximum. TECHNICAL INFORMATION (CONT'D) -40 centigrade +65 centigrade Mechanical Maximum over-all length Maximum diameter Net weight, approx Shipping weight, approx 4* lA inches .2 inches 6 ounces 1 pound VOLTAGE AND CURRENT VS. FREQUENCY The curves of page 3 show the maximum allowable peak r -f voltage and maximum rms current for G -E vacuum capacitors when operated at various frequencies. An additional d -c voltage is permissible so long as the total voltage (d -c plus r -f) does not exceed the maximum allowable peak voltage as indicated by the dotted line shown on the curve. These curves apply when the capacitors are operated at an ambient temperature of 50 C and for normal operating conditions with natural air cooling. The correction curve below indicates the percentage increase or decrease in r -f voltage and current when G -E vacuum capacitors are operated at ambient temperatures above or below 50 C. (Note that the allowable peak voltage (r -f plus d -c) at any ambient temperature should not exceed the maximum as indicated by the dotted line of the curve shown on page 3.) Example-Assume a GL -1L23 is to be used at a frequency of 30 megacycles and at an ambient temperature of 40 C. The correction curve indicates a correction of 118 per cent. The curves of page 3 indicate a maximum r -f voltage of 3000 volts peak and a maximum current of 20.5 amperes. Applying the correction factor of 118 per cent to these values indicates an allowable maximum peak r -f voltage of 3540 volts and a maximum current of 24.2 amperes. For operation at frequencies higher than those indicated, consult the Electronics Department, General Electric Company, Schenectady 5, New York. VACUUM CAPACITORS GL -1L21, 32, 33, 36, 38, 22, 23, 24, 25 AND 1131 CORRECTION CURVE (PERCENTAGE VOLTAGE OR CURRENT VS AMBIENT TEMPERATURE) 150 140 130 120 cc 110 cc 100 cc cOc 90 O 80 u.. 70 60 50 10 20 30 40 50 60 K -69087-72A7 AMBIENT TEMPERATURE IN DEGREES C 70 4-5-46 GL- 1L23 ETI-264 . .... VOLTAGE AND CURRENT VS FREQUENCY (FOR OPERATION AT 50 C AMB ENT TEMPERATURE) . MN PAGE 3 I1-46 add* Imo 32 711 101111111111111 mmul...._ nu cc wV) 28 1.....e .... r .difgluinlluunraim-sos=hAoMulIsNen....:.:.:.::u::l:u::nfiini.-..r.a..l1im:4m55il.n4immumnuumrrna _1 cc <co LIJ 24 IniiiiIiiilialiiiiiiii.liiiiiiiiiiiiiiiiiiiiiiiiiiiiiildigilkiiiii < pliiiiiiiiiiIiiiiiiiiiiiiiiimikulniMiiininallPailmsdpammim < 20 IlliirAiumnp!Inimmundmumumiliiilliflininhifillihommuliii M= Iz- < (2 16 12 8 IMIIIIIIIIIMM*1111MIIIMIMINIIIMPI11111111111MIIMMEMP/101111 MilimitiiiiiiiiiiliiiiiIkPiihnibm-RE-Siiiiiiiimumuminniiiiniiii mIIstMNaaireImIrMdI,IpiVImI.pMiInPI.7I-PoI.N-oI.P.om.A.wM.rm.-i.m.if".luf.i-l.umm-i..mn--m.mrnN-Po.ioli..lii.!upr.L:mlhmki.aa..i.Ei.wp.i..fr-.l.iI-.ilI,mulmM.il.maiainlI.II.iRa.nM._.i.l.nd0Pi....Fi,-.Hf,.-.mfuiI.ul.Lu..kn...1Mm..i1.l..1i-.I1Mp-.I1r.aI.u1.I1im.IMr1.In1-.MmP.Im.NoN.M1,g1e.iI1.LIE1.nsI.1Im.r1NI41IeoI.a.MAnm..I M,iiiiinqamgpotiliilgimuMniImMuIImMmIIIItIhVipIIrIIaIPtoIuCpIaIIrIsIMuIsIiIaI qHu0a1u11u1m11m1w11m1mMuIMmI 11111:111118101111dIPPAIMIIMIIM111101111111i1HEIMIMIKAMIIMINII - 16 15 nYII.`uIIMrimdmIunNmm'Iael"irli-qlanniuPmmrLimimlIphuilmuiEprnalpiumraomtliliaamlcinkmi-ulill.ipiAiiiLniIrZiiilIiniIimIMLiLniu.eI.Pu.NrI.aM.mIm.II.LI.imV..i.i.A.i.i.oMi.i.mlIuIdVmmAimHulMiummpmmiumiiuuimInMmrai iiiiiiiiiiqugilinindliiiiiiIIMI MI iiiiiiiiiiiiiiiiiiiiiiiiiim "liiiiiiiiili ILI) 14 1E1111111K kletipunuminiumuninumunnumninunnummumim 0 imumanimadmpunommonmpomiumpiimmommimi 13 - 12 1111111:11511111111111lih11111110111MLIMININIMMI 111111111ibilIng 111111111P1111111111111111111M1111111111111111111111 11 Imill111110illilliNsl 111111111b11111111111110111011111111111111111111111111 10 IPIIIIEHEIMILMIERIMIIIIIIMERMIMINEHEMPLIMMUNII 9 " ' ;;;;;;;;;;;imaiggq;;;;;;;;;;;;;;;;;;;;;;;I;;;;I;;;;;;N; 8 iimiiiiiiiiiiiiiimiiullsoimgiglimpoiiririiktoizr,0i1p.p90i1im11u1.l=i,m. . mellio.m.. ..o..o..,m....m....o..m....i. 7 6 pLiumm"-m....i.uprmoIm.m.miism... '.p..i`.1r1.u.1.m.1.`m"o...u...i.p.m.h":;o1,2o,,1m11m11.1.i.1l.1ip11i1i1i-Mmi.l.IbIEMiorManEmd1l1om1o1im1p1 5 1.me74I 11611ll1ie1lu1mlluiimiiniioMliniinni.g..I-N10I9M111M11I1R8M1mEalNinnMingEiiNiiiEm Iinlili.umInmoiulirmemmlimn i.muiniiumruniuliniiriiintrti9li-E.9hl-ii;i.iiniiiiaiidiiEiiMiimINiiiIiMPIE 2 mlniunombrurmonuimurkmunuuommmummmuummninu. mnmumu..md..imbuiliirnm. .mi.i.m.u..mm..uinimuiinimiiiouiMwmIEurmmNlFnhIloMllaniEmimRmEiiiPmliTmmEi 1 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 K -69087-72A6 FREQUENCY IN MEGACYCLES 4-5-46 GL -1 L23 ETI-264 PAGE 4 11-46 UNMARKED END IR. NORMALLY GROUNDED\ 6 2 " D IA. 25.'4. I " 32 -32 3u+1" -16 49"+ I" 16 /--4 2" MAX.DIA. MARKED END 25"+ 1 " 32 -32 CAPACITANCE SYMBOL 11-46 (8M) Filing No. 8850 K-8639363 GL -1123 OUTLINE 10-29-45 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL -1 L24 DESCRIPTION AND RATING ETI-265 PAGE 1 11-46 VACUUM CAPACITOR DESCRIPTION The GL -1L24 vacuum capacitor is designed for circuits where the peak voltages range up to 16,000 volts. It is useful as a plate -tank and by-pass capacitor in radio -frequency oscillators or amplifiers. The GL -1L24 also serves as a neutralizing capacitor in radio -frequency amplifiers in conjunction with small, low -capacitance padding capacitors. The small size and compact construction of the vacuum capacitor permits circuits to be designed more compactly, allowing shorter leads than with air capacitors. Some of the more important advantages, in the design of high -frequency circuits, are listed below: 1. Vacuum capacitors are comparatively loss - free, since there are no losses in the vacuum dielectric and because the total capacitance is lumped into a size about 1 cubic inch. 2. Dust and other foreign matter have no effect on vacuum capacitors. 3. In communication applications, vacuum ca- pacitors are extensively used as antenna coupling capacitors especially in aviation radio installations, where constant internal voltage breakdown is an essential require- ment. 4. Internal voltage breakdown is constant and is independent of altitude, temperature, humidity and other factors because of the vacuum construction. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Electrical Capacitance 5 per cent Maximum peak voltage. 100 micromicrofarads 16,000 volts GENERAL CD ELECTRIC GL -1 L24 ETI-265 PAGE 2 11-46 TECHNICAL INFORMATION (CONT'D) Maximum rms current At 1.0 megacycle. At 50.0 megacycles 20 amperes 7 0 amperes 20 amperes Ambient temperature Maximum Minimum +65 centigrade -40 centigrade Mechanical Maximum over-all length inches Maximum diameter Net weight, approx Shipping weight, approx 2% inches 8 ounces 1 pound VOLTAGE AND CURRENT VS. FREQUENCY The curves of page 3 show the maximum allow- d -c) at any ambient temperature should not exceed able peak r -f voltage and maximum rms current the maximum as indicated by the dotted line of for G -E vacuum capacitors when operated at the curve shown on page 3.) various frequencies. An additional d -c voltage is Example Assume a GL -1L24 is to be used at permissible so long as the total voltage (d -c plus a frequency of 30 megacycles and at an ambient r -f) does not exceed the maximum allowable peak temperature of 40 C. The correction curve indicates voltage as indicated by the dotted line shown on a correction of 118 per cent. The curves of page 3 the curve. indicate a maximum r -f voltage of 1900 volts peak These curves apply when the capacitors are and a maximum current of 24.5 amperes. Applying operated at an ambient temperature of 50 C and the correction factor of 118 per cent to these for normal operating conditions with natural air values indicates an allowable maximum peak r -f cooling. voltage of 2240 volts and a maximum current of The correction curve below indicates the per- 28.9 amperes. centage increase or decrease in r -f voltage and For operation at frequencies higher than those current when G -E vacuum capacitors are operated indicated, consult the Electronics Department, at ambient temperatures above or below 50 C. General Electric Company, Schenectady 5, New (Note that the allowable peak voltage (r -f plus York. VACUUM CAPACITORS GL -1121, 32, 33, 36, 38, 22, 23, 24, 25 AND L31 CORRECTION CURVE (PERCENTAGE VOLTAGE OR CURRENT VS AMBIENT TEMPERATURE) 150 140 130 w 120 F - w 110 F - CCcc 100 cr O 90 O 80 LL Cc 70 60 50 10 20 30 40 50 60 K -69087-72A7 AMBIENT TEMPERATURE IN DEGREES C 70 4-5-46 VOLTAGE AND CURRENT VS FREQUENCY (FOR OPERATION AT 50 C AMBIENT TEMPERATURE) GL -1 L24 ETI-265 PAGE 3 1 I -4 6 uOnMimMMmMmMuMmMmMOmToOmMMmTIIIIIMnMUiFlFlWimOMMmIIIMIuIIIMlMuIOMirMmIMM agilladilimilliplimillimallullimilig 1111.1111MILIBEIfillkuni_m_Milink___rnalum.1101MAISI__MMum=0111MbutiiiIMOMMHir 11113150111MmuMMMIMed 32 1.1.1.1.1.1.1.1.1.1.1.1.1.11......1.1.1..1.1.1101w...'........1.14.1911e=n111111....111111.....mis mmilliiiiiii IIIIIIIIIIIIIgaillatilowillimillimmillic LE 1"'"""" .1911111 'I.. .111111/..411111111 111111111 1111 12 28 5, 111111111 1111N111111111 MOMMOMMOMMOMPAI WI 'III 1M IMMeMMIMMUMMAIIMMISMIIMII MIIMI:MEWIIMMEIIMOMMIIIIII LLJ _J 111111111111110 molm mem 01111mIlmillmilmilleimmmilmilmmigg milddikjurrah 191111 CO L_LJ 24 MBE III =MOM < 0_ .. ..... mum..1.1.MOJMIMIMIMIMIMIMIMIMIIMIEIMIOIIIMIOIINIOIIIIIIIIIIIIIIIIIMiOiM .mM.O..w.Mi.O.lM11lM1iU11gM:6Mm0Oi1Ml..M.m.Oa1Mi..lO.lM.i1 0< 11111111AI 11111111111111111111111111111111111Iiiiiii mum' - - 20 iMiOi:iMiMnIiMiIiFiIiEiiFiiqliIiNiEiiOiMiiiMiEiMiiMiIiUiMiMiEiiMiMiUiMrMilliiiiiMiEiiMiiiOIRrlilMNiiiMiiOiMii=iiiFiMiiiiiAiriiIimiimii M 16 1111111111111W1111 111111111111111 I IIIIIIIII1____ IIIIIMICM11 1111 iilliplaiiii1111111111111111111NOVETT=1"1-1111111111111111111 1111 Nil -- CC 12 druilipiapp, azialimilli . NMI& ><OL CD immiliglITIirihgralan (-) MlNamI.umpoimm1omm.m.-r.s..a.m1o1m11mL_mimiiil iiMEaMl1p16..1.1..1,1m.i.li.M.M1=.M1mm.i1l g 1 illimiliiiiiiiiiiiiiiiiiliiii M.....Mm Aqm.....g...11 geggomm 8 1AI 111111,41111111111 INNT:wa MMM "MOP W.,- dfamnmt.l.k.a,r-l-i1n.o1nmnmkiiilii1n0s1.1.1.1u1n1a1g1.1.1.1.1.1.1.1.1.1.1111111111111111111L1IZ1U1M1W1M1E1N.U111M1E ..... AIIR:111 PrZINIMIMMIffilliaitorn111111111111111-1 D1111111111111111111111 Milt/gigl""iiiirll 1111111MAP.4.11Allifill 1E11111 IILII.I..I.I.I.I.I.IIIIIII.I.I.I..I.I. LIIiiiiIii1111111111111111111111111b111111411 Uhl almism 1111,1111111111111 mum 11m1i1l1Il1mlu1i1m11l11m1l11u1:19m111m:1111u111l1l11a11.1u1.11c1M11Eu11W1m115p11,r11E1iM11Ea11M1lLiaWiAmiNmmFieiirpliridiUiiirieiiciifieiiRiEiiMiiAiiKiiSiHiiIiMiiaiririiiniiilliIMiiIi 16 .1...R1.1.1.1.0.1i1.11W.11m111' E. =Nam. Iglu... Iiiiiiiiiiiiiiiiimll ... ..v... .... ..... 111111111111111111111111111 ..._ms. .....i......... 1.1.1.1.11M1M1O1M1F1I1N1II1 15 Millar MO =MAMIE lial OM IIIIIIIIIIIIIIIIIIIIIIIIYM 111111111:11.. Hum mmoommpommommpuma 111 IIIII1 1k1C II II 1111 110 111_111 III 111111111111111 111111111 111111111111 14 OMMMII.EI.MI.MI.MVI.II.M.O0.I1M11A1,I11V0,O14A1M4111I.M.F II1 IIII MOMMEMOIIIIIMMOMMEMEI MOIMIMMEIIMOMMEMEM EMOMMEMMOMMEMEMff MMIMMOM 13 MINIIaM miliMEMO""i=lIliPmilitrillik91,1111111111111-111111 12 1 III III 1111 i ill 111 11 1 mu 1111 11 11111111111111111111111141 1i1iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiil iiiiiiiiiiiiiiiii 10 im miiiiiiiiiiiiiihigiliiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii 9 :: mmi::::::::::::3212! illill::::10::::::::::1::::::::111:::::::::: 1M11 8 1 11111111111111111111I11111111111111 mImIoIm mrnIImIIsIoImIImIoIImImIuImIImImIuIImIoIImaaliMiiiMINIMEEMEGEMPPI 7 IMMEMIgLMPMoOMMnEo OZOoMmommommomuormnmmmoommmmuacmmmm,m1m1umnmuimmm.7.mmmommP R.Imom-mummommmom.m NIII mmEmmummrnms mm MONOMMMOMMEM:MOMMOMMEMOOMMOMMEMMONEMMEMM.Z!MMOMMEMMOMMOMMEMEMMEMMO 11am111m1um1m1u11m1um111o1mu1m1mo1m1mo1m11mu11ki21..6m2um11m1i11n1m1m11om11a1m1.1z11.m11m1i11ll11i1m11Iu1Il/1li11m1il1i1m1i1l .5 mXiM1E1m1M1Wm1m1M1m1M11U1M1M1E1M1M1OM1O1M1M1E1M1O1M1M1U1M1M1MM111M0O1M1M1M1M1M1M0E:N1MM1I1R1M1E1M1E1M1E1M1M1NW1E1E1MmEiWmOaM.M=ErMnEMWMMNnMMWMEuMnMnWeNmMm ...1, 1111111II111PIEHIMMEMINIMINSINIIIMINENIMMII iii iii iiiiial illiMMMININFIilliiinsiusrurillffilid 2 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii 11111111111Iii 1 0 0 4 K -69087-72A6 10 12 14 16 18 20 22 24 26 28 30 FREQUENCY IN MEGACYCLES 4-5-46 GL -1 L24 ETI-265 PAGE 4 11-46 II UNMARKED END 8 R. NORMALLY GROUNDED .5621'1- ioogi, DIA. 21%. I" 32 - 32 I I1 311+. 4- -II 6 -8 MARKED END u 22M AX. DIA. 25" I" 32 - 32 CAPACITANCE SYMBOL 11-46 (8M) Filing No. 8850 K-9033852 GL -1L24 OUTLINE Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 10-29-45 GL -1 L25 DESCRIPTION AND RATING ETI-266 PAGE 1 11-46 VACUUM CAPACITOR DESCRIPTION The GL -1L25 vacuum capacitor is designed for circuits where the peak voltages range up to 16,000 volts. It is useful as a plate -tank and by-pass capacitor in radio -frequency oscillators or amplifiers. The GL -1L25 also serves as a neutralizing capacitor in radio -frequency amplifiers in conjunction with small, low -capacitance padding capacitors. The small size and compact construction of the vacuum capacitor permits circuits to be designed more compactly, allowing shorter leads than with air capacitors. Some of the more important advantages, in the design of high -frequency circuits, are listed below: 1. Vacuum capacitors are comparatively loss - free, since there are no losses in the vacuum dielectric and because the total capacitance is lumped into a size about 1 cubic inch. 2. Dust and other foreign matter have no effect on vacuum capacitors. 3. In communication applications, vacuum capacitors are extensively used as antenna coupling capacitors especially in aviation radio installations, where constant internal voltage breakdown is an essential require- ment. 4. Internal voltage breakdown is constant and is independent of altitude, temperature, humidity and other factors because of the vacuum construction. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Electrical Capacitance t 5 per cent Maximum peak voltage 12 micromicrofarads 16,000 volts GENERAL 0 ELECTRIC GL -1 L25 ETI-266 PAGE 2 11-46 Ambient temperature Minimum Maximum TECHNICAL INFORMATION (CONT'D) -40 centigrade +65 centigrade Mechanical Maximum over-all length Maximum diameter Net weight, approx Shipping weight, approx 41%. Y8' inches .2 inches 6 ounces 1 pound VOLTAGE AND CURRENT VS. FREQUENCY The curves of page 3 show the maximum allowable peak r -f voltage and maximum rms current for G -E vacuum capacitors when operated at various frequencies. An additional d -c voltage is permissible so long as the total voltage (d -c plus r -f) does not exceed the maximum allowable peak voltage as indicated by the dotted line shown on the curve. These curves apply when the capacitors are operated at an ambient temperature of 50 C and for normal operating conditions with natural air cooling. The correction curve below indicates the percentage increase or decrease in r -f voltage and current when G -E vacuum capacitors are operated at ambient temperatures above or below 50 C. (Note that the allowable peak voltage (r -f plus d -c) at any ambient temperature should not exceed the maximum as indicated by the dotted line of the curve shown on page 3.) Example-Assume a GL -1L25 is to be used at a frequency of 30 megacycles and at an ambient temperature of 40 C. The correction curve indicates a correction of 118 per cent. The curves of page 3 indicate a maximum r -f voltage of 5800 volts peak and a maximum current of 9.5 amperes. Applying the correction factor of 118 per cent to these values indicates an allowable maximum peak r -f voltage of 6845 volts and a maximum current of 11.2 amperes. For operation at frequencies higher than those indicated, consult the Electronics Department, General Electric Company, Schenectady 5, New York. VACUUM CAPACITORS GL -1L21, 32, 33, 36, 38, 22, 23, 24, 25 AND 1L31 CORRECTION CURVE (PERCENTAGE VOLTAGE OR CURRENT VS AMBIENT TEMPERATURE) 150 140 130 100 16'2' CC 90 CD O SO LL 70 60 50 10 20 30 40 50 60 K -69087-72A7 AMBIENT TEMPERATURE IN DEGREES C 70 4-5-46 VOLTAGE AND CURRENT VS FREQUENCY (FOR OPERATION AT 50 C AMBIENT TEMPERATURE) .. NUNN WEN MI GL -1 L25 ETI-266 PAGE 3 11-46 32 EMEMMEMEMMOMMEMMEMEME011.MOMMEMMEMEMEMMEMIEWMMEmL7.. MEWIMMEM MMEMEMMONWEIMMEMEMEMMESMEINI IningraraniMignraPOLIECERFAMMIS0211111111111011011111EUEMEMI 28 INMEMMEMMEMEEMM,AMMEWOMME MMEMMEMMEMEMM 'AMMINIMMMUMMMEMEMMEMEMEMEMMEMBUMEMEMEMEMEMEMINIIM ... IMEMEMMEMWMAMIMMEMINIMMOIMEMOMMEMMEMEMMIENTIMUMEMEMMEMEMEM 24 immMEolMldlmgamariigl oimnnnoiianllinlnaamienmaeMmMaErnRitaEnNinTiaIraMinMinErMinIinMuaMnIinSinEomITmEomMmE 11111111i111111 11111111111dMilmMimiiiiiimmimpoupommum 20 lilliniiiiiilliqi11111111111111111111111111111111111111111111111111111111111111111111 16 11MM1.11UI 11111A101111111M1E11111111111111111M1U11 MEM 1M4E111111_ 111111411113/011111 H.,,,,A1.0imiroramm pi! 12 1111111141111111111111111111111 111"="91112111111111111111111 111111111111111 8 liffiliiiigAiiiiiiiimilliiiiiirilirii e..I:'!!!!!!!111911111111111111111811 wNhuigmnimilimplimuml---m 221 ! 111111 II I 1111 III III1 imaliniiiiiiIIIIIIIIIIIIIIIIIIIIIIIIIIM::::::::111111:11111111 VA:Mii°"9161111 111111111111111111 111N1 1,1111111111111111101111111111111111111 ulmis Iii1111611111 IIIIIIIImiiiiIIII4 ,iimpilliallimplImpliiiiimilli 11 11 11111111111111111 11111111111111111111111111111111111111111141111111111111111 1111 1111111111111==ffi IgEMITIARIMI 4111411411410141L2 M111111111111 16 m1em11M11M1M1M1M1M11m1om1:1111111i11m1u11m11m1i1tnIpMIrMAiIrVEmLp14i11rM2MILMAJ111111141!!!!!!!!!!!!! IIIIIIMILWILIIIIIIIMIIIMMIMMEMIIIIIIMM i 111111111111111111111111 11111111111111 MEMm.M...mMEMM.MEMMWENWWwWWIEM MMINImMINIMMEMME 15 11111111101011 1111111111111111111 1111 .. IiIii111111111111111111111 11111111111111 14 PhibiLINtrilideldal ANNIMMEMMINIINAMMI 13 MIIIMMIV4MIIMEMIMPIEMEMEE , 12 11 Imbidalloom ppm 10 ,,,,! millgolimillimmilimilimil 9 8 7 .i'm.l..u...m.....m.....i..l.i1iim116i1l1l:9i11m1' ,i,l,IlImiiiiiiiiiiil,l..,i.,i.iim,,,,,,m,,,,,om, Iil"liii I 5 .11111111111111111111111111011101111111111WEIIIINIMPIIIIIIII! .. mullallipluniummullumamplummallualmasslarammull IIIIIIIIIIIIIIIIIIIIIIMINNIMMINI911111111111111111111111111111 IINIMEMMIIIIMIREMIMINWIN06911MON imilimmullualumplumullummullummultamiliiiiiiimpligi ill 2 1111111111111111111111111i1111 11111111111111111111111111111111111111 inagiiiiiiii i 1 0. 0 K -69087-72A6 8 10 12 14 16 18 20 22 24 26 28 30 FREQUENCY IN MEGACYCLES 4-5-46 GL -1 L25 ETI-266 PAGE 4 1 1 -46 UNMARKED END NORMALLY GROUNDED\ D I A. 25"+ I " 32 32 311-+IF1.. 49"+ I" 68 /'11 2" MAX.DIA. MARKED END A 25".1.1:1 32 -32 CAPACITANCE SYMBOL 11-46 (8M) Filing No. 8850 K-8639363 GL -1L25 OUTLINE Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 10-29-45 GL -1 L33 DESCRIPTION AND RATING ETI-267 PAGE 1 11-46 VACUUM CAPACITOR DESCRIPTION The GL -1L33 vacuum capacitor is designed for circuits where the peak voltages range up to 7500 volts. It is useful as a plate -tank and by-pass capacitor in radio -frequency oscillators or amplifiers. The GL -1L33 also serves as a neutralizing capacitor in radio -frequency amplifiers in conjunction with small, low -capacitance padding capacitors. The small size and compact construction of the vacuum capacitor permits circuits to be designed more compactly, allowing shorter leads than with air capacitors. Some of the more important advantages, in the design of high -frequency circuits, are listed below: 1. Vacuum capacitors are comparatively loss - free, since there are no losses in the vacuum dielectric and because the total capacitance is lumped into a size about 1 cubic inch. 2. Dust and other foreign matter have no effect on vacuum capacitors. 3 In communication applications, vacuum ca- pacitors are extensively used as antenna coupling capacitors-especially in aviation radio installations, where constant internal voltage breakdown is an essential require- ment. 4. Internal voltage breakdown is constant and is independent of altitude, temperature, humidity and other factors because of the vacuum constructio TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Electrical Capacitance t 5 per cent Maximum peak voltage 100 micromicrofarads 7500 volts GENERAL 0 ELECTRIC GL -1 ETI-267 PAGE 2 11-46 TECHNICAL INFORMATION (CONT'D) Ambient temperature Minimum Maximum -40 centigrade +65 centigrade Mechanical Maximum over-all length Maximum diameter Net weight, approx Shipping weight, approx IA inches 1% inches 6 ounces 1 pound VOLTAGE AND CURRENT VS. FREQUENCY The curves of page 3 show the maximum allowable peak r -f voltage and maximum rms current for G -E vacuum capacitors when operated at various frequencies. An additional d -c voltage is permissible so long as the total voltage (d -c plus r -f) does not exceed the maximum allowable peak voltage as indicated by the dotted line shown on the curve. These curves apply when the capacitors are operated at an ambient temperature of 50 C and for normal operating conditions with natural air cooling. The correction curve below indicates the percentage increase or decrease in r -f voltage and current when G -E vacuum capacitors are operated at ambient temperatures above or below 50 C. (Note that the allowable peak voltage (r -f plus d -c) at any ambient temperature should not exceed the maximum as indicated by the dotted line of the curve shown on page 3.) Example-Assume a GL -1L33 is to be used at a frequency of 30 megacycles and at an ambient temperature of 40 C. The correction curve indicates a correction of 118 per cent. The curves of page 3 indicate a maximum r -f voltage of 1300 volts peak and a maximum current of 25 amperes. Applying the correction factor of 118 per cent to these values indicates an allowable maximum peak r -f voltage of 1534 volts and a maximum current of 29.5 amperes. For operation at frequencies higher than those indicated, consult the Electronics Department, General Electric Company, Schenectady 5, New York. VACUUM CAPACITORS GL -1L21, 32, 33, 36, 38, 22, 23, 24, 25 AND 1131 CORRECTION CURVE (PERCENTAGE VOLTAGE OR CURRENT VS AMBIENT TEMPERATURE) 150 140 130 120 110 100 90 80 70 60 50 10 20 30 40 50 60 K -69087-72A7 AMBIENT TEMPERATURE IN DEGREES C 70 4-5-46 MAXIMUM ALLOWABLE PEAK R -F VOLTAGE IN KI LOVOLTS MAXIMU CURRE mill... .6....1110.:.. ... al M OM JM M= ' g'iq IIMM1 niiiiiiiiiiihmiiiihiiiiiiiiiiNiii Mii iiiiiMIiIiIIiMlIElai..l,a.lpililiii 1111111111111111111111 11111111111111111111111111111111111111111111111111111111111111i111111X11101111 11111111011111111110 1111111111111111111111111111111FINISMIMMIIMINUMM1 EIHNINIMINLNINIMMIIINIMMONMEMORRIPAREHIMILVINIMN fPiliti !h 11111111 1111111111111111111111111111111111111111111111111111 III 1111111111111 on mounmil :::::::::::::::::3::::::7:::::::::::::::::::4p5ma5imm.u0mm moms mommummulam.mm 0) !"E!mu!mm!u!ll!il!lU!1!11!11!11!1!n1!11!1!11!11!11!1!11E11g11M1P11E1gEiSllEi"m'Mu"mPr3`5.11T11.h%F1iA1lT1A1l-m6.i14imoiimnmI.omIrmmPimMumm1um1iln1inm1ial1mm4m 1'1II1I1 Ishogionemplimp 111111111111111111111A111111111/1111111111111111111111/111111101111U111101, 1111111101111111111 IIIIIIIIIIIIIIIIIIIImilligiumulimplimpul IIIIIIImptimillik imillosimmill 11111111111111Er11111111g1111111111i111111111140111 IIIIIParmigelo Im illiiii 11111111 ........................................01.11WEIMIEWIIIMIIIIIIII5104111111110111 11111111101111111111111111 iiiiiiiiiiiiiiiini1616111111111,111111115iiiillifillgilliiiiiiiiIIIIII 11111111111111111111111 HI 11 IIIIIIIIIIIIIIIIrmillimill 11111111111111111111111,4111U1111111111111111; 11111111111111111111011 1111111 =mm, !MiMm!Mm!Mo!Mmm!mi!om!mmmu!.m!.m!mumImomIruInmIuumImmIuumAmmImwoImmiImmIlmuIommInmMsuMmAmmEumNrNimEulIWummIooEmNmiNlIFrAPiTnAEu=PmImiimImmIIIIIIMIPmmAoPrEILIIIIIIINIEIIEI I1IiiIiI=ICImIiInsolmumimnilim NIMMINIMPOMMINEMEdidregiglaffilibilifillE R. *NNW 111 iIililisiioiilioiiwiiiiililioiMmMmIuIMmMmIiflflmirliilliliiimiPuAmPAplIiImINilIiMmMmEuMmIpNlOimffiillliidtdliilMlIiNnb ommortheomduffumummenlehmodudimemmurippl lipl RIMILINA !m!!m!u!m!m!m!m!!c!n!mMmErNIrImImImImIImImImIrItIImImImImImIIlImImImImIIrIeNfNtImIIImIo!m!m!!u!m!m!o!m!m!!mIiIlIlI1II1I1I1!1!!!m!o!m!m!o!!m!!i!n!1-1-1-5-mmum---mm,m Immo i li I I !I GL -1 L33 ETI-267 PAGE 4 11-46 UNMARKED END NORMALLY GROUNDED I ir---M562" +oo" DIA. 25 -32 MARKED END 31'1-4" 49'1+- 182 25 "I. I " 32 -32 T CAPACITANCE SYMBOL K-5964459 11-46 (8M) Filing No. 8850 GL -1L33 OUTLINE Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 10-29-45 GL- 1 L36 DESCRIPTION AND RATING ETI-268 PAGE 1 11-46 VACUUM CAPACITOR DESCRIPTION The GL -1L36 vacuum capacitor is designed for circuits where the peak voltages range up to 7500 volts. It is useful as a plate -tank and by-pass capacitor in radio -frequency oscillators or amplifiers. The GL -1L36 also serves as a neutralizing capacitor in radio -frequency amplifiers in conjunction with small, low -capacitance padding capacitors. The small size and compact construction of the vacuum capacitor permits circuits to be designed more compactly, allowing shorter leads than with air capacitors. Some of the more important advantages, in the design of high -frequency circuits, are listed below: 1. Vacuum capacitors are comparatively loss- free, since there are no losses in the vacuum dielectric and because the total capacitance is lumped into a size about 1 cubic inch. 2. Dust and other foreign matter have no effect on vacuum capacitors. 3. In communication applications, vacuum capacitors are extensively used as antenna coupling capacitors especially in aviation radio installations, where constant internal voltage breakdown is an essential requirement. 4. Internal voltage breakdown is constant and is independent of altitude, temperature, humidity and other factors because of the vacuum construction. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Electrical Capacitance t 5 per cent Maximum peak voltage 25 micromicrofarads 7500 volts GENERAL ELECTRIC GL -1 L36 EV-268 PAGE 2 11-46 Ambient temperature Minimum Maximum TECHNICAL INFORMATION (CONT'D) -40 centigrade +65 centigrade Mechanical Maximum over-all length Maximum diameter Net weight, approx Shipping weight, approx 3% inches 1% inches 4 ounces 1 pound VOLTAGE AND CURRENT VS. FREQUENCY The curves of page 3 show the maximum allowable peak r -f voltage and maximum rms current for G -E vacuum capacitors when operated at various frequencies. An additional d -c voltage is permissible so long as the total voltage (d -c plus r -f) does not exceed the maximum allowable peak voltage as indicated by the dotted line shown on the curve. These curves apply when the capacitors are operated at an ambient temperature of 50 C and for normal operating conditions with natural air cooling. The correction curve below indicates the percentage increase or decrease in r -f voltage and current when G -E vacuum capacitors are operated at ambient temperatures above or below 50 C. (Note that the allowable peak voltage (r -f plus d -c) at any ambient temperature should not exceed the maximum as indicated by the dotted line of the curve shown on page 3.) Example-Assume a GL -1L36 is to be used at a frequency of 30 megacycles and at an ambient temperature of 40 C. The correction curve indicates a correction of 118 per cent. The curves of page 3 indicate a maximum r -f voltage of 3500 volts peak and a maximum current of 16.8 amperes. Applying the correction factor of 118 per cent to these values indicates an allowable maximum peak r -f voltage of 4130 volts and a maximum current of 19.8 amperes. For operation at frequencies higher than those indicated, consult the Electronics Department, General Electric Company, Schenectady 5, New York. VACUUM CAPACITORS GL -1121, 32, 33, 36, 38, 22, 23, 24, 25 AND 1131 CORRECTION CURVE (PERCENTAGE VOLTAGE OR CURRENT VS AMBIENT TEMPERATURE) 150 140 130 120 110 100 90 80 70 60 50 10 20 30 40 50 60 K -69087-72A7 AMBIENT TEMPERATURE IN DEGREES C 70 4-5-46 VOLTAGE AND CURRENT VS FREQUENCY (FOR OPERATION AT 50 C AMBIENT TEMPERATURE) GL -11.36 ETI-268 PAGE 3 1 1 -46 -57 ...................m.............. ninum....suum.......morammum u..1 MEMO 111 MMMMMMMM M 118111111111111111111111111WE MIIMIIIIIIIIIMINIWIN MN MIMIN111111111111111111111M111111 0 in11111111111111111111111IMIMIE EN IIIMEmN11E11E1N11I1IMIIIMIIEMMEIIVIIIMIIELNINIIIIIMIIIEINLNIIIMIIIIEII MM1I=I NEMN10M11E1I1M1I1N1N1I1U1M11M1E1I1M1=1M11M1I1IMIIIIMMNNIMIMINMIIIEM=IIWIIIMII MN IMIIIIMME11101111111MMIIMIIMIIIIMIIIMNIMMINEMIIMMIN11111111 =m7.-. irmmisn.-.-..-.o.-.n-mn-i-m...m.............."..m...=s..m......m.......... 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Y. 10-29-45 GL -1 L38 DESCRIPTION AND RATING ETI-269 PAGE 1 11-46 VACUUM CAPACITOR DESCRIPTION The GL -1L38 vacuum capacitor is designed for circuits where the peak voltages range up to 7500 volts. It is useful as a plate -tank and by-pass capacitor in radio -frequency oscillators or amplifiers. The GL -1L38 also serves as a neutralizing capacitor in radio -frequency amplifiers in conjunction with small, low -capacitance padding capacitors. The small size and compact construction of the vacuum capacitor permits circuits to be designed more compactly, allowing shorter leads than with air capacitors. Some of the more important advantages, in the design of high -frequency circuits, are listed below: 1. Vacuum capacitors are comparatively loss - free, since there are no losses in the vacuum dielectric and because the total capacitance is lumped into a size about 1 cubic inch. 2. Dust and other foreign matter have no effect on vacuum capacitors. 3. In communication applications, vacuum capacitors are extensively used as antenna coupling capacitors-especially in aviation radio installations, where constant internal voltage breakdown is an essential requirement. 4. Internal voltage breakdown is constant and is independent of altitude, temperature, humidity and other factors because of the vacuum construction. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Electrical Capacitance 5 per cent Maximum peak voltage 50 micromicrofarads 7500 volts GENERAL 0 ELECTRIC GL -1 L38 ETI-269 PAGE 2 11-46 Ambient temperature Minimum Maximum TECHNICAL INFORMATION (CONT'D) - 40 centigrade +65 centigrade Mechanical Maximum over-all length Maximum diameter Net weight, approx Shipping weight, approx 3% inches 1 inches 4 ounces 1 pound VOLTAGE AND CURRENT VS. FREQUENCY The curves of page 3 show the maximum allow- d -c) at any ambient temperature should not exceed able peak r -f voltage and maximum rms current the maximum as indicated by the dotted line of for G -E vacuum capacitors when operated at the curve shown on page 3.) various frequencies. An additional d -c voltage is Example Assume a GL -1L38 is to be used at permissible so long as the total voltage (d -c plus a frequency of 30 megacycles and at an ambient r -f) does not exceed the maximum allowable peak temperature of 40 C. The correction curve indicates voltage as indicated by the dotted line shown on a correction of 118 per cent. The curves of page 3 the curve. indicate a maximum r -f voltage of 2050 volts peak These curves apply when the capacitors are and a maximum current of 20 amperes. Applying operated at an ambient temperature of 50 C and the correction factor of 118 per cent to these for normal operating conditions with natural air values indicates an allowable maximum peak r -f cooling. voltage of 2419 volts and a maximum current of The correction curve below indicates the per- 23.6 amperes. centage increase or decrease in r -f voltage and For operation at frequencies higher than those current when G -E vacuum capacitors are operated indicated, consult the Electronics Department, at ambient temperatures above or below 50 C. General Electric Company, Schenectady 5, New (Note that the allowable peak voltage (r -f plus York. VACUUM CAPACITORS GL -1L21, 32, 33, 36, 38, 22, 23, 24, 25 AND 1L31 C ORRECTION CURVE (PERCENTAGE VOLTAGE OR CURRENT VS AMBIENT TEMPERATURE) 150 140 130 1_1.1 120 C .) 110 I- Cc 100 Cc 90 CD - '80 70 60 50 10 20 30 40 50 60 K -69087-72A7 AMBIENT TEMPERATURE IN DEGREES C 70 4-5-46 VOLTAGE AND CURRENT VS FREQUENCY (FOR OPERATION AT 50 C AMBIENT TEMPERATURE) GL -1L38 ETI-269 PAGE 3 1 1 -46 (,), mumps llopmm III Ellp im op idempaggimm c, (,) 2 3 Lij 2 CD a- 1ih1m0i1n0n0o1w0il1iii0m0m11inPiM,11u1n1n1o1m1m11im11u:m11mu11m1p1u1m11n1p5u1m1MmMuEn a 2 111111111111MMIIMI11h111111111EMEMIIIIIMEIMIELOpe11111111,111111111111111111 .<-1 ---- 1. aINrIdMiIUllMaMdIrIIaMlEiNnIiP.i.IiL.lL.l.iiii7iniii.1i.l1.l1.i1.n1:1d11if1lf1lri1uf1iM-r-1g-1i-1:-12=171-14-1-51w11-i.1i.1..1..d..T.Pm"1m,0m11m1m11 7- t. 119111FAIIIIIIPMEMIIIIIIREssillIMEREMEMMINI111111111111111111111 * cci-LI 11111NINIMIP111111111...m .119IIMPAP111101.1.111.1111,911141 hall n# - - --r- - i 8 IA!lEdliiti.g..l..i.i.r..i.l.i..r.e..l.l..m...o...r.m....i.n...r.L;.F.e..W:. "9""" m .m...m---p; o. .p..m.-..-m..maunm.iL-uaFm1-1m1-1 mmmmmmmm ......... .......... FTV;eIi iR..=.;:E,a;;i;lP;l"IiIi7ilI:"I"M"111I1R1I1I1I1P1.1S1I1S.1A1.1l1l1iiiIkllipalfl.l1i1.0.1.1Mti1o1.n...mM..I..MI.aNA.iMrMp.mM.I.MOp..NeI.Ir.1Mf.1i.g1I.I1u.I1rMr1n.1.Mi1.p.1mI.1R1m.1M.1.in1.I aromplipollommipirphopposphdirgpmmipm .. pi .1,..160.1...:111 1 u..n..d..o..m.. miluNMmIpEOluMsu1m1111m1111u11n11d11rmI inuMmIIMmeBrMaErRaMnIIMuImIIIIImIMUaMdIUinMEuIMmINmIUMoMr,I 9111111111111111,111TIMUNILLWAIMOVIHMIINICILIMIE4211111111111 (,) i suneffemkuus ...................... innummuounum 111u11,11111111111111111111111111 -,5sumpi1mi1um1m1iu1mm11mu1am1k1mm11mp1oo1w11m1i0smp1mum1lo4mmm1o1mmu1omm1sm1uu1ssm1pm1inn1on1moio1mmm1m1uuMmamm.M.u.m.I.nMim.n.IuiNNtnmNm..InomIeImrmIImIpuMinminiEumnmNaummEm1mu1mmo1mm1l 11.9111.16.111.1111 2. 111:1111111111.96118110111111.1.91.11111.1MIRMIEllr1 41i11n1m110i1li1d11i1m11i1l1im111i1li1o11N11N11I1F11i1b11li1m111i1m11m11i0l1i1i1r1s1o11m11m11i1l1i1r1m11 mum boll 11..1....1,...a1.1..1":.11.111.11.1.1.1..1.1..1..A..1..M..1...1.P..1...R1..1.PM.m..E.a.....mP..a...Ul.pl.a..i..lI..P.....I.M.C...a....nU...i.a.L...a...Ta...l.lA..a..a...I...aM.k...i...CM....a..a.U.l...a..Ma...a.,.lPl..a...T.M....I.I,.MI..I.E.I....MM....O..IM.ML...Zia..lal...1lTa..1aW..a1..ila1..I.I...11M..11...1I.a.N.1l.a.a.I1.Ll.l1i.a..1.l.....1.......M.....a...l.Ml.1..a..a..I.l..Nl.a...r.Ei...ll 2 111111111111 1111111111111111111111111111011111111111111111111111110E1118M11111 lipmpro impommommumimbinsmommmgmmmommu Lel ""1:::: :::::::::::::::::sompuniumormsubuipiiiiiiiiiiim 111111111111111111111111111111111111110EMILINIIINNII 0 4 K -69087-72A8 8 12 16 20 24 28 FREQUENCY I N MEGACYCLES 32 4-5-46 GL -1 L38 ETI-269 PAGE 4 I1-46 UNMARKED END NORMALLY GROUNDED 8 +.olou ,56211 -.005" DIA g5" I" 32 -32 MARKED END 32 -32 I-1MAX. DIA;b-- CAPACITANCE SYMBOL K-5964469 11-46 (8M) Filing No. 8850 GL-1L38 OUTLINE Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 10-29-45 GL- 1 L31 DESCRIPTION AND RATING ETI-307 PAGE 1 8-50 VACUUM CAPACITOR DESCRIPTION The GL -1L31 vacuum capacitor is designed for circuits where the peak voltages range up to 16,000 volts. It is useful as a plate -tank and bypass capacitor in radio -frequency oscillators or amplifiers. The GL -1L31 also serves as a neutralizing capacitor in radio -frequency amplifiers in conjunction with small, low -capacitance padding capacitors. The small size and compact construction of the vacuum capacitor permits circuits to be designed more compactly, allowing shorter leads than with air capacitors. Some of the more important advantages, in the design of high -frequency circuits, are listed below: 1. Vacuum capacitors are comparatively loss- free, since there are no losses in the vacuum dielectric and because the total capacitance is lumped into a size about 1 cubic inch. 2. Dust and other foreign matter have no effect on vacuum capacitors. 3. In communication applications, vacuum capacitors are extensively used as antennacoupling capacitors especially in aviation radio installations, where constant internal voltage breakdown is an essential requirement. 4. Internal voltage breakdown is constant and is independent of altitude, temperature, humidity and other factors because of the vacuum construction. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Electrical Capacitance 5 per cent Maximum peak voltage 6 micromicrofarads 16,000 volts GENERAL ELECTRIC GL -1 L31 ETI-307 PAGE 2 8-50 TECHNICAL INFORMATION (CONT'D) Ambient temperature Minimum Maximum -40 centigrade +65 centigrade Mechanical Maximum over-all length Maximum diameter Net weight, approx Shipping weight, approx 4iet% inches 2 inches 6 ounces 1 pound VOLTAGE AND CURRENT VS. FREQUENCY The curves of page 3 show the maximum allow- d -c) at any ambient temperature should not exceed able peak r -f voltage and maximum rms current the maximum as indicated by the dotted line of for G -E vacuum capacitors when operated at the curve shown on page 3.) various frequencies. An additional d -c voltage is Example Assume a GL -1L31 is to be used at permissible so long as the total voltage (d -c plus a frequency of 30 megacycles and at an ambient r -f) does not exceed the maximum allowable peak temperature of 40 C. The correction curve indicates voltage as indicated by the dotted line shown on a correction of 118 per cent. The curves of page 3 the curve. indicate a maximum r -f voltage of 6500 volts peak These curves apply when the capacitors are and a maximum current of 5.4 amperes. Applying operated at an ambient temperature of 50 C and the correction factor of 118 per cent to these for normal operating conditions with natural air values indicates an allowable maximum peak r -f cooling. voltage of 7670 volts and a maximum current of The correction curve below indicates the per- 6.4 amperes. centage increase or decrease in r -f voltage and For operation at frequencies higher than those current when G -E vacuum capacitors are operated indicated, consult the Electronics Department, at ambient temperatures above or below 50 C. General Electric Company, Schenectady 5, New (Note that the allowable peak voltage (r -f plus York. VACUUM CAPACITORS GL -1 L21, 32, 33, 36, 38, 22, 23, 24, 25 AND 1 L31 CORRECTION CURVE (PERCENTAGE VOLTAGE OR CURRENT VS AMBIENT TEMPERATURE) 150 140 130 UJ 120 LL.J L.> 110 LL.1 1- 100 O(2C LU 90 (.5 O 80 lY 70 60 50 K -69087-72A7 10 20 30 40 50 6Q AMBIENT TEMPERATURE IN DEGREES C 70 4-5-46 MAXI MUM ALLOWABLE PEAK R-F VOLTAGE IN KILOVOLTS MAXI M CURRE OCD kx) A( CO CO 0 I--' \, -F. 01 IO-4 CD -4. CO I \.) 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Is. UNMARKED END NORMALLY GROUNDED\ A 25"+ 1 " 32 -32 3"+L -16 ) 4" 16 8 /.2" MAX.DIA. MARKED END 25"+ 1 " 31 -32 CAPACITANCE SYMBOL 8-5o (11M) K-8639363 10-29-45 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL -1 L32 DESCRIPTION AND RATING ETI.308 PAGE 1 8-50 VACUUM CAPACITOR DESCRIPTION The GL -1L32 vacuum capacitor is designed for circuits where the peak voltages range up to 7500 volts. It is useful as a plate -tank and by-pass capacitor in radio -frequency oscillators or amplifiers. The GL -1L32 also serves as a neutralizing capacitor in radio -frequency amplifiers in conjunction with small, low -capacitance padding capacitors. The small size and compact construction of the vacuum capacitor permits circuits to be designed more compactly, allowing shorter leads than with air capacitors. Some of the more important advantages, in the design of high -frequency circuits, are listed below: 1. Vacuum capacitors are comparatively loss - free, since there are no losses in the vacuum dielectric and because the total capacitance is lumped into a size about 1 cubic inch. 2. Dust and other foreign matter have no effect on vacuum capacitors. 3. In communication applications, vacuum capacitors are extensively used as antenna coupling capacitors especially in aviation radio installations, where constant internal voltage breakdown is an essential requirement. 4. Internal voltage breakdown is constant and is independent of altitude, temperature, humidity and other factors because of the vacuum construction. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Electrical Capacitance 5 per cent Maximum peak voltage 6 micromicrofarads 7500 volts GENERAL ELECTRIC GL -1L32 ETI.308 PAGE 2 8-50 Ambient temperature Minimum Maximum TECHNICAL INFORMATION (CONT'D) -40 centigrade +65 centigrade Mechanical Maximum over-all length Maximum diameter Net weight, approx Shipping weight, approx 3% inches 1% inches 4 ounces 1 pound VOLTAGE AND CURRENT VS. FREQUENCY The curves of page 3 show the maximum allow- d -c) at any ambient temperature should not exceed able peak r -f voltage and maximum rms current the maximum as indicated by the dotted line of for G -E vacuum capacitors when operated at the curve shown on page 3.) various frequencies. An additional d -c voltage is Example-Assume a GL -1L32 is to be used at permissible so long as the total voltage (d -c plus a frequency of 30 megacycles and at an ambient r -f) does not exceed the maximum allowable peak temperature of 40 C. The correction curve indicates voltage as indicated by the dotted line shown on a correction of 118 per cent. The curves of page 3 the curve. indicate a maximum r -f voltage of 5320 volts peak These curves apply when the capacitors are and a maximum current of 6.4 amperes. Applying operated at an ambient temperature of 50 C and the correction factor of 118 per cent to these for normal operating conditions with natural air values indicates an allowable maximum peak r -f cooling. voltage of 6278 volts and a maximum current of The correction curve below indicates the per- 7.6 amperes. centage increase or decrease in r -f voltage and For operation at frequencies higher than those current when G -E vacuum capacitors are operated indicated, consult the Electronics Department, at ambient temperatures above or below 50 C. General Electric Company, Schenectady 5, New (Note that the allowable peak voltage (r -f plus York. VACUUM CAPACITORS GL -1121, 32, 33, 36, 38, 22, 23, 24, 25 AND 1131 CORRECTION CURVE (PERCENTAGE VOLTAGE OR CURRENT VS AMBIENT TEMPERATURE) 150 140 130 120 L.) 110 cc 100 f2 Ocff 90 C.7 -O1 80 cc cc 70 60 50 10 20 30 40 50 60 70 K -69087-72A7 AMBIENT TEMPERATURE IN DEGREES C 4-5-46 C4r, 8 0 J P C, a. . J 0 mmmmm imommumammummom mmmmmmmmmm m ammo Ili Es mimmommumminammammommrnmmommo En mum mmommmummmlmmmmmommammammmmmommmmmmmmimmmumnmmmmmmmmmmmummmmoummmmmaummmiommammonmimmmommmmmmmmammmmmmmmmmmummmmmogmmmmm=mmommmmmmmmmammm mmummummmommammEmsammmmammommorm EN mmmmmm PimmEEMEmEM EWEN OMAMMIEL!NE V II IM etMME r 1mMmM1mMXmMmMEmMMmMMmMmMEwMMmMmMUmMMrMMmMmMImMMmMEMMiMEmMi=mKamEUE EM I WEEMEMP2 '4 m =IaMtR IC MEM mmm EX IIMIMMEMMUMEMMTEIMENMEM MMEEMMOMMEMBEEMMEEMEMOMMEMMEMMEMEMENEMENmiumMEMME 2m IL El NM N V ma ,r NW 1;1 9 II 22111 ME le MI li NUMEMEMMEME 1 . 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Y. 10-29-45 r GL-2BP 1 DESCRIPTION AND RATING ETI-310 PAGE 1 3-50 CATHODE-RAY TUBE DESCRIPTION The GL-2BP1 is a small cathode-ray tube with a small, brilliant, focused spot and high deflection sensitivity. The two-inch, medium -persistence, green -fluorescence screen provides high contrast. The tube is designed for use as an indicator and is also recommended for use in general oscillographic applications where compactness is an essential consideration. With separate base -pin connections provided for each of the four deflecting electrodes, the 2BP1 is intended primarily for use in balanced electrostatic deflection circuits and gives best definition when so used. However, it is also well suited for use with unbalanced deflection because of design features which minimize the spot and pattern distortion characteristic of such operation. The spot in this tube can be focused sharply on the screen, both at the center and at the edges, and remains sharp when beam current is varied over a wide range. This feature results from the electron gun used in the 2BP1 in which the Grid No. 2 operates at voltage high enough to keep the beam current from being affected by changes in the anode -No. 1 voltage. Another feature, the very small current taken by Anode No. 1, permits the use of a low -current voltage -divider system and hence the use of a small filter capacitor. GENERAL ELECTRIC GL-2BP 1 ETI-310 PAGE 2 3-50 TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Heater voltage (A -C or D -C) Heater current Focusing method-Electrostatic Deflecting method-Electrostatic Phosphor-Pi Fluorescence-Green Persistence-Medium Direct interelectrode capacitances, approximate Grid No. 1 to all other electrodes D1 to D2 D3 to D4 Dl to all other electrodes D2 to all other electrodes D3 to all other electrodes D4 to all other electrodes 6.3 t 1()% volts 0 6 ampere 8 uuf 2 uuf 2 uuf 11 uuf 8 uuf 7 uuf 8 uuf Mechanical Data Mounting position-Any Over-all length Greatest diameter of bulb Minimum useful screen diameter Base No. B12-43, small -shell duodecal 12 -pin 7%8' A inches 2 inches 14 inches MAXIMUM RATINGS Design Center Values Anode No. 2 voltage* Anode No. 1 voltage Grid No. 2 voltage . Grid No. 1 voltage Negative -bias value Positive -bias value Positive -peak value Peak heater -cathode voltage Heater negative with respect to cathode Heater positive with respect to cathode Peak voltage between anode-No. 2 and any deflection electrode 2500 max volts 1000 max volts 2500 max volts 200 max volts 0 max volts 2 max volts 125 max volts 125 max volts 500 max volts EQUIPMENT DESIGN RANGES For any anode No. 2 voltage (Eb2) between 500** and 2500 volts Anode No. 1 voltage Grid No. 1 voltage for visual cutoff, maximum Anode No. 1 current for any operating condition Deflection factors Dl and D2 D3 and D4 15% to 28% of Eb2 volts 6.75% of Eb2 volts -15 to +10 microamperes 115 to 155 volts D -C per inch per kilovolt of Eb2 74 to 100 volts D -C per inch per kilovolt of Eb2 EXAMPLES OF USE OF DESIGN RANGES For anode No. 2 voltage of Anode No. 1 voltage Grid No. 1 voltage for visual cutoff Deflection factors D1 and D2 D3 and D4 1000 150 to 280 -67.5 115 to 155 74 to 100 2000 volts 300 to 560 volts -135 volts 230 to 310 volts D -C per inch 148 to 200 volts D -C per inch MAXIMUM CIRCUIT VALUES Grid No 1-Circuit resistance Resistance in any deflecting -electrode circuitt 1 5 max megohms 5 0 max megohms *Anode No. 2 and Grid No. 2 which are connected together within the tube are referred to herein as Anode No. 2. **Brilliance and definition decrease with decreasing Anode No. 2 voltage. A value as low as 500 volts is recommended only for low -velocity deflection and low room -light levels. tIt is recommended that the deflecting -electrode -circuit resistance be approximately equal. GL -213R1 AVERAGE CHARACTERISTIC ANODE NO, 1 VOLTAGE ADJUSTED FOR FOCUS ANODE NO. 2 VOLTAGE =1000 E,.=6.3 VOLTS GL-2BP1 ETI.310 PAGE 3 3-50 0O0 n 0 ron 0 u0i ! 01 I1 I. I MM MMIkO MO Mi- M m=noino 0LA UMWMC 0 O RELATIVE LINE BRIGHTNESS 0 (37 0N.3 ummummilowlmml m urn, "mil immiiiiiiiii a mmiiiiim WiIlllil a. 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IIMMENNIMES MMMMMMM MilinglIENNEUENNIMM MEME Emma mommos MMMMMMMMMMMMM immummummummmosn.nmommummmoommmmiulilmlg,m1l1m1il1l :Immomme 4111111 mummumms MMMMM mom= mainummum MMMMMMMMMM millil MEM .. JIM= ..." m MMMMMMMMMMMMMM manonsmmonsommposonnommonnommosso ommonommomm MMMMMMMMMMMMMMM mmmommonommomman onommongssompumms nommo ka...ini m '...1. II:mammonism:1111WWWWW Imsooonms `Man= MMMMMM :... M '. ... MUM bZqUENSIONSE MMMMMMM INNEW MMMMM BM MMMMMM MANNI M Z. MB 1 ME ...4111%10 ..... s'IllkINOWIP Ella ..'. -. 01111.:. MIOURJ ....:!.. ZAIrdi IRENE Innft-4.nmmmmoamnau ft.7.7.11111.WII/In, WASIN .7. w MF.F.MMUMMUft.-.MUMUMZIAIZM MMMMMM WNW [ISAAC: 1...:7°.14.4WWINENNMS .7.7. mimm mmmoral om imams moms m:1110 Ilamm mom MUSW. mmommon m :ILI mg EMEM mmi is MMMMMM mongol dmgigmumummmiiiiliimimiiiiiiiimumml CD - 7- cn 0 cn ANODE -N0.2 CURRENT IN MILLIAMPERES K -69087-72A322 N.) O 12-9-49 64-6-ZL CUVU-L8069-)1 Si10A NI 39V110A Z 'ON-30ONV 00SZ 000Z 0051 0001 00S MUM 111 1111 MI I mom 111111PWIIIPW111111 11111'11111111111 11111111111111111111111111 INIMIIIIM1111111111 IIIIII IIIIIIIIII1 ill11.12111111111111 01 1111111111 .M.E.M.E..M.M.I.N1. 1111111111 11111111i 'III IIIIII II MI I Nmi 1111111M11111111111111111411111111MIWAIMIIIIIIIIMIIIMINFAIIM OZ 111111111111 lip 11111111111111i12411111115111111111111111111111 I m ......m .1......1. ms WilhipORMULIAROUSIBIppped !!!!!!!!!IMIIII 1111111111111112 m m of 1111111.11II II 11111111111115111111114111111111111111 "11111 IIIIIIIIIIIMIIIIIIIIIME11.1111111111 II NOWNIONFAMMEMMUMMITMEMMEMENOMMUMM IAN II II 1110m111111pilinr1111W INNIMIIINuMWAIIIIIIIIIhmid.MIN Hz 111111111111111 m 017 1111111111111 OS 09 9 1111.111.11111Mil olimmilipoimmoOmmuipmumuliimi 11111111111111111111111111111 IIIIIIIIIIIIIIIIIIIII III1111111111 SI1OA E*9= snDod dO3 allsnrav 30V110A L 'ON 3C1ONV SD11SIN31JV2IVI-0 PERSISTENCE CHARACTERISTIC P1 PHOSPHOR IOC) 80 x3 60 R;. 40 30 20 MMMEMMNMEMNMLMMMOMMMMMMMEHNMMNMEMMMMIMMUMMMMMMMEMMMMEMNMMEMMMMMMMIMMNMMMEMMNMWMMOIMMMMMMEMMMMEMNMMUMMMMMMOEINM MEMMEMEMEMMMEMMEMMEMMOMMEMEMMEMMEMEMEMMEMMEMEMMEMEMOMMEMMEMMEMMEMEMOMM MEMMUMMEMIMMEMMEMMEMMEMMEMEMMEMMMOMMEMEMEMOAMMEMMMEMMEMMEMMEMEMEMMINE MEMEMMEMEMLIMEMMEMEMMEMEMMEMMEMOMMMMEMEMOMMEMMEMMEMMEMONEMMOMMINIMMMEMM IMMEMEMEMEMIUMEMEMMEMMEMMOMMUMEMMOMMEMEMEMOMMINMEMEMMUMMEMOMMEMMEMME 10 IMMIMMIMMIIMMEMOMMIIMMIIMIIMMONNOMMIIMMONIIMMINOMMOMIMMINEMMEMMIN = E n 8 63 St rs == 4 cs= r.1 3 GL-2BP1 ETI-310 PAGE 5 3-50 2 K -69087-72A326 111111111MEMEMMEMM MMMMMMMM MUMM MMMMM IIMMEMMEMMEMEMEMMOMMEM MMMMM MEMMEMEMMEMEME MEMMIEMINEMMEMMEMMEMMEMEMIMMEMEMEMEMEMEMMEMEME MM MM MMEMEMMEMMEMMMEMMEMM MEMEMMEMEMMEMMEMMEMEMEMMEMEMMEMEMMEMMEMMEMEMMEM6MMMEMMEMMEMMEMMEMEMME MMINIMMEMMEMMEMMIMMEMMEMEMEMINIMMEMMEMMEMEMEMMOMMEMMOMMEMMEMMEMEMEMMEMMII EMENUMMEMMEMOMMMEMOMMEMOMMEMMUMMEMEMEMEMOMOMMUMINOMMUMMOMMEMMEMMN UNOMMEMMEMMUMMOMISMIMMUMMOMMINIMMOMMUMMUSONOMMINEWMINOMMUMEMEMEMEM io1.1111.111111111111111110111111111111111MM1MINIIIIIIIIII11IMMON1IMMIMISIIII 0 02 0 04 0.06 TIME AFTER EXCITATION is REMOVED IN SECONDS SPECTRAL -ENERGY EMISSION CHARACTERISTIC P1 PHOSPHOR 100 AMMEMI 80 11111 :1 MEREMI K -69087-72A327 60 111111 1'E 1111111.V I LI Midi il illiiill ' 1:1:el."1 1111::::::11:111111:......11111111111110111: EEL : 1 la::::::: 4 'IiIlI .t..o.......: 20 IF 10:111:1111"61 1 rall 11111111iiini 1...1::::::1 imum:111 1im11e1lp11e1l 11i9ii1iii:i:i:i: 1 m:Ppmi .epi1 1I: ::::LC: 1..1...1 numb= 3500 4000 4500 5000 5500 6000 6500 WAVELENGTH IN ANGSTROMS 12-13-49 12-13-49 GL-2BP1 ETI-310 PAGE 6 3-50 SCREEN RADIUS -g MIN. 3 16 r 3.. I ±16 SMALL SHELL DUODECAL I2 -PIN BASE NO. B12-43 OUTLINE CATHODE-RAY TUBE GL-2BP1 D3 D4 IC O O G2 P2 Pi AL D2 GI H IC H BASING DIAGRAM t OF BULB WILL NOT DEVIATE MORE THAN 2° IN ANY DIRECTION FROM THE PERPENDICULAR ERECTED AT THE CENTER OF BOTTOM OF THE BASE. THE PLANE THROUGH THE TUBE AXIS AND PIN NO.4 MAY VARY FROM THE TRACE PRODUCED BY DI AND D2 BY AN ANGULAR TOLERANCE (MEASURED ABOUT THE TUBE AXIS) OF 104% ANGLE BETWEEN DI - D2 TRACE AND D3- D4 TRACE IS 900130. DI AND D2 ARE NEARER THE SCREEN; D3 AND D4 ARE NEARER THE BASE. WITH DI POSITIVE WITH RESPECT TO D2, THE SPOT WILL BE DEFLECTED TOWARD PIN NO.4; LIKEWISE, WITH D3 POSITIVE WITH RESPECT TO D4, THE SPOT WILL BE DEFLECTED TOWARD PIN NO. I. N 15160AZ 1 2 -9-.49 Tube Divisions, Electronics Department 3-50 (11M) Filing No. 8850 GENERAL ELECTRIC Schenectady, N. Y. GL-3KP1 DESCRIPTION AND RATING ETI-31 1 PAGE 1 3-50 CATHODE-RAY TUBE DESCRIPTION The GL-3KP1 is an electrostatic -focus -and deflection cathode-ray tube for oscilloscope applications. A medium -persistence green -fluorescence screen provides high contrast. The tube has a small brilliant focused spot and high deflection sensitivity. The anode No. 1 takes negligible current. Changes in the voltage of this anode will not affect the beam current because of the high voltage at which anode No. 2 operates. These features allow the spot to be focused sharply on the screen and to remain sharp even when the beam current is varied over a wide range. The small anode No. 1 current permits the use of a low -current voltage divider system and hence a small filter capacitor. With separate base -pin connections for each of the four deflecting electrodes, the GL-3KP1 is intended primarily for use in balanced electrostaticdeflection circuits and gives best definition when so used. The tube, however, can be used with unbalanced deflection because the design features minimize spot and pattern distortion usually characteristic of such operation. GENERAL ELECTRIC GL-3KP1 ETI.311 PAGE 2 3-50 TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Heater voltage Heater current Focusing method Deflecting method Phosphor-P1 Fluorescence Persistence Direct interelectrode capacitances, approximate Grid No. 1 to all other electrodes D1 to D2 D3 to D4 Dl to all other electrodes D2 to all other electrodes D3 to all other electrodes D4 to all other electrodes 6 3 volts 0.6 ampere electrostatic electrostatic green medium 8 uuf 25 uuf 2 5 uuf 11 uuf 8 uuf 7 0 uuf 8 uuf Mechanical Data Mounting position Over-all length Greatest diameter of blub Minimum useful screen diameter Base Basing any 11 IA t y, inches 3 c inches 2% inches medium shell mag- nal 11 -pin 11M MAXIMUM RATINGS Design Center Values Anode No. 2 voltage* Anode No. 1 voltage Grid No. 1 voltage Negative-bias value Positive-bias value Positive peak value Peak heater-cathode voltage Heater negative with respect to cathode Heater positive with respect to cathode Peak voltage between anode No. 2 and any deflecting electrode 2500 max volts d -c 1000 max volts d -c 200 max volts d -c 0 max volts d -c 2 max volts d -c 125 max volts d -c 125 max volts d -c 500 max volts EQUIPMENT DESIGN RANGES For any anode No. 2 voltage between recommended minimum** and 2500 volts Anode No. 1 voltage 16 to 30% of Eb2 volts Grid No. 1 voltage for visual cutoff, maximum 4 5% of Eb2 volts Anode No. 1 current -15 to +10 microamperes Deflection factors D1 and D2 D3 and D4 50 to 68 volts d -c per inch per kv of Eb2 38 to 52 volts d -c per inch per kv of Eb2 Spot position*** Examples of Use for Design Ranges For anode No. 2 voltage of Anode No. 1 voltage Grid No. 1 voltage for visual cutoff 1000 2000 160-300 320-600 -45 -90 volts Deflection factors D1 and D2 D3 and D4 50 to 68 100 to 136 volts d -c per inch 38 to 52 76 to 104 volts d -c per inch MAXIMUM CIRCUIT VALUES Grid No. 1 circuit resistance Resistance in any deflecting-electrode circuit t 1 5 max megohms 5.0 max megohms *Anode No. 2 and grid No. 2 which are connected together within the tube are referred to herein as anode No. 2. The product of anode No. 2 voltage and average anode No. 2 current should be limited to 6 watts. **Brilliance and definition decrease with decreasing anode No. 2 voltage. Recommended minimum is 1000 volts in general service, but a value as low as 500 volts may be used under conditions of low -velocity deflection and low ambient -light conditions. ***The center of the undeflected, focused spot will fall within a circle having 7.5 -mm radius concentric with the center of the tube face. fIt is recommended that the deflecting -electrode -circuit resistances be approximately equal. 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30 PERSISTENCE CHARACTERISTIC PI PHOSPHOR == ===. 20 \ I 10 8 WssIIEf=aIMimIanMIIIINmIIuIMIMIImIiMIIMsMMIMmImMIIMkIMoMohMwIiIMMIMImMIi=iiImUmUoI-IImI-MImM-oMMiu=MmmIMiUMnmEmMiIuRmMsUm1=mmm1MM-M1o=om1IiMiImW1iMm=1imINumCMmMWimwm=UIEuIoMoMmMNmmEmIUMMEmmmMiIMuMIiuIsmMImIImmMMIIoIMIiaIrmIIMIMmI=MIIImMIIMImMMMMuoMIMImIImUMIIII5IImIMIiNIMmIIMEMoUNIOmMEEmMMI=oMUIoIMMmI=ImIMMI_IMEI=mM=_Mi--IMMMm==UuMM-_mM=MuII_MMI=mIIMI=INIIIIIIIINIoMuIIIEMIImmMIINE0II a 6a =g 4a 3 -- 2 MMMMM M1II1IIIN1M1EI1NM1EO1UMMMIMIMNEMIMMIMNMEEI1IMM1M1I1EM1MM1EMUNINENMIESMMEEE..MMEIIMMIENMEEMMMEIIMIIIEIINIIIIMOEMMMIENMEMMEIMEINLBIEMUMMMMIIEII 11011111111111111111111111111111111111mmuMIUMMINIMINIMUIMI11111111111101 0 02 0 04 0.06 TIME AFTER EXCITATION.1S REMOVED IN SECONDS K-69087-72A326 12-13-49 SPECTRAL -ENERGY EMISSION CHARACTERISTIC P1 PHOSPHOR 100 MMM INE 1 80 rise 211 21 111 ..1 60 211 mem iiiiiiiiiiIIII MMMMM 40 ":"'PliMITIMPRIBilingil r. CE 20 . i ee...111211 edeirneemese re s 1 2112:15'Na11 3500 4000 K -69087-72A327 11111k U4 4500 5000 5500 6000 WAVELENGTH IN ANG5TRONS :::::::Fain 6500 12-13-49 GL-3KP 1 ETI.31 1 PAGE 5 3-50 GL-3KP 1 ETI-311 PAGE 6 3-50 OUTLINE CATHODE-RAY TUBE GL-3KP1 .350" SCREEN RADIUS 1-3/8" MIN. A 3-50 (11M) Filing No. 8850 MEDIUM -SHELL MAGNAL II -PIN BASE D4 D3 2 P1 D2 K D G1" IC H KEY H BASING DIAGRAM CENTER LINE OF BULB WILL NOT DEVIATE MORE THAN 2 DEGREES IN ANY DIRECTION FROM PERPENDICULAR ERECTED AT CENTER OF BOTTOM OF BASE. N-15145AZ 3-17-49 Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL-5UP1 DESCRIPTION AND RATING ETI-312 PAGE 1 3-50 CATHODE-RAY TUBE DESCRIPTION The GL-5UP1 is a cathode-ray tube with a small brilliant focused spot and high deflection sensitivity. The green -fluorescence medium -persistence screen has exceptionally good brightness contrast between the scanned line and the background, and high visual efficiency even at an anode No. 2 voltage as low as 1000 volts. The tube is designed particularly for general oscillographic applications where recurrent wave phenomena are to be observed visually. Design features of this tube include a bulb face with a minimum curvature consistent with bulb strength, a large useful screen surface in relation to bulb diameter, and separate base -pin connections for each of the four deflecting electrodes. Balanced deflecting -electrode input capacitances minimize cross -talk and eliminate the necessity for neutralizing circuits. The 5UP1 is intended primarily for use in balanced electrostatic -deflection circuits and gives best definition when so used. However, it is also well suited for use with unbalanced deflection because of design features which minimize the spot and pattern distortion characteristic of such opera- tion. The spot in the 5UP1 can be focused sharply on the screen and will remain sharp when the beam current is varied over a wide range. This feature results from the electron gun used in which the grid No. 2 operates at voltage high enough to keep the beam current from being affected by changes in the anode No. 1 voltage. Another feature, the very small current taken by anode No. 1, permits the use of a low -current voltage -divider system and hence the use of a small filter capacitor. GENERAL ELECTRIC GL-5UP1 ETI-312 PAGE 2 3-50 TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Heater voltage (a -c or d -c) Heater current Focusing method Deflecting method Phosphor-P1 Fluorescence Persistence Direct interelectrode capacitances, approximate Grid No. 1 to all other electrodes D1 to D2 D3 to D4 Dl to all other electrodes D2 to all other electrodes D3 to all other electrodes D4 to all other electrodes 6 3 t 10% volts 0.6 ampere electrostatic electrostatic green medium 8.0 uuf 2.5 uuf 2.5 uuf 11.0 uuf 8.0 uuf 7.0 uuf 8.0 uuf Mechanical Data Mounting position Over-all length Greatest diameter of bulb Minimum useful screen diameter Base No. B12-43, small -shell duodecal 12 -pin Anode No. 2 voltage* Anode No. 1 voltage Grid No. 1 voltage Negative -bias value Positive -bias value Positive -peak value Peak heater -cathode voltage Heater negative with respect Heater positive with respect to cathode Peak voltage between anode No. 2 and any deflection electrode any 14% inches 514 t 32 inches 4% inches 2500 max volts 1000 max volts 200 max volts 0 max volts 2 max volts 125 max volts 500 max volts EQUIPMENT DESIGN RANGES For any anode No. 2 voltage (Eb2) between 1000 and 2500 volts Anode No. 1 voltage Grid No. 1 voltage for visual cutoff Anode No. 1 current for any operating condition Deflection factors Dl and D2 D3 and D4 EXAMPLE OF USE OF DESIGN RANGES For anode No. 2 voltage of Anode No. 1 voltage Grid No. 1 voltage for visual cutoff, maximum Deflection factors D1 and D2 D3 and D4 17% to 32% of Eb2 volts 4 5% of Eb2 volts -15 to +10 microamperes 28 to 38.5 volts d -c per inch per kv of Eb2 23 to 31 volts d -c per inch per kv of Eb2 1000 2000 volts 170 to 320 340 to 640 volts -45 -90 volts 28 to 38.5 56 to 77 volts d -c per inch 23 to 31 46 to 62 volts d -c per inch MAXIMUM CIRCUIT VALUES Grid No. 1 circuit resistance Resistance in any deflecting -electrode circuit t 1.5 max megohms 5 0 max megohms *Anode No. 2 and grid No. 2, which are connected together within the tube, are referred to herein as anode No. 2. tit is recommended that the deflecting -electrode -circuit resistances be approximately equal. 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MmmmmmMmiiiiunmuu!mimmmmmuumMammmMomomMmnmniiolismnmimomwmmmmi:oomAmimmmipmmmmaioomumnmmommgmmmomolummomimpummm!mmomm"mumo.oummm.mmumaummmmumumommmmuomummmmmmoommuuommommmmmmmmuimuuimmommnmmmmmuumumummoommmmmmumoommmmmuummimmmmommioummummmmommmmummumumumimmmMmmmoMmmiumMoommmMmmmmmMimuiulmommmmmmmommoummoommmimmmmommmiummimommmmmummoummuommmmmms liPmmiummimminummommommumummommommommuummommummommommimmi AmiMmuEmmMiMmlIumUmmMMmoOmuMmmMoEmmMomUmoMMmmImoNomImMmmIooNmImMmoEumMmmMrOmnMimMmOoMmmMumMmmEiMmmMoImmNiImmMomMmmEEMmmMiOmmMmMmuIumUmmMiMuImmNmmIuMumMmmIioNmImMmmMoiEmMnmMiiOmnNMmiEmuMmmO 1000 1500 2000 2500 ANODE-NO.2 VOLTAGE IN VOLTS K -69087-72A328 12-22-49 GL-5UP1 ETI-312 PAGE 3 3-50 GL-5UP1 ETI.312 PAGE 4 3-50 100 80 60 40 30 20 10 8 6 3 PERSISTENCE CHARACTERISTIC PI PHOSPHOR K-69087-72A326 0 02 0.04 TIME AFTER EXCITATION IS REMOVED IN SECONDS SPECTRAL -ENERGY EMISSION CHARACTERISTIC P1 PHOSPHOR 100 IBM UM.E.M 0.06 80 11 1.19.n...n il iI1 Hike: Lem 60 1.1...111. 1 .11 HII AR M ennew....1.1111,... he11111 1....1 1-1 eon 1...11101 40 mum 20 3500 1-11111.111 0-n1. 111ffleI 01:1111:111 1 AnnthemonnenhilPfelurnd al1111.111 11.41 : mil iniiii111111141:1 ire sm." IIIIIIIIIIII1 4000 4500 5000 5500 6000 6500 K -69087-72A327 WAVELENGTH IN ANGSTROMS 12-13-49 12-13.49 GL-5UP1 ETI-31 2 PAGE 5 3-50 SCREEN RADIUS 2-1/4" MIN, OUTLINE CATHODE-RAY TUBE GL-5UP1 SMALL -SHELL DUODECAL 12 -PIN BASE NO. BI2-43 (NOTE I) 14 -4LI: 3" 30 iT. flD3 D4 IC G2p2 PI D2 K GI H DI IC H BASING DIAGRAM OF BULB WILL NOT DEVIATE MORE THAN 2° IN ANY DIRECTION FROM THE PERPENDICULAR ERECTED AT THE CENTER OF BOTTOM OF THE BASE. THE PLANE THROUGH THE TUBE AXIS AND PIN 4 MAY VARY FROM THE TRACE PRODUCED BY DI AND D2 BY AN ANGULAR TOLERANCE (MEASURED ABOUT THE TUBE AXIS) OF 10°. ANGLE BETWEEN DI - D2 TRACE AND D3 -D4 TRACE IS 90't 3°. DI AND D2 ARE NEARER THE SCREEN; D3 AND D4 ARE NEARER THE BASE. WITH DI POSITIVE WITH RESPECT TO D2, THE SPOT WILL BE DEFLECTED TOWARD PIN NO. 4; LIKEWISE, WITH D3 POSITIVE WITH RESPECT TO D4, THE SPOT WILL BE DEFLECTED TOWARD PIN NO. I. NOTE I: THIS BASE MAY BE SUPERSEDED BY AN ALTERNATE BASE WHICH WILL FIT THE SAME SOCKET BUT WHICH WILL HAVE A FLARED SHELL INDICATED BY THE DASHED LINES AND DIMENSIONED APPROXIMATELY AS FOLLOWS: As 1.85" MAX., B s 0.500", C s 0.200" MIN., D = N-15161AZ 12-22-49 Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 3-50 (11M) Filing No. 8850 GL-3MP 1 DESCRIPTION AND RATING ETI-313 PAGE 1 3-50 CATHODE-RAY TUBE DESCRIPTION The GL-3MP1 is an electrostatic focus and inch diameter tube adapts it for use in small port deflection type of cathode-ray tube intended for able equipment. oscillograph use. The short length of this three - TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL Electrical Data Heater voltage Heater current Focusing method-Electrostatic 6.3 volts 0 6 10% amperes Deflecting method-Electrostatic Phosphor-P1 Fluorescence-Green Persistence-Medium Direct interelectrode capacitances, approximate Cathode to all other electrodes Grid No. 1 to all other electrodes D1 to D2 D3 to D4 Dl to all other electrodes except D2 2 2 uuf 10.3 uuf 1 3 uuf 1 2 uuf 4.4 uuf GENERAL ELECTRIC GL-3MP1 ETI.313 PAGE 2 3-50 TECHNICAL INFORMATION (CONT'D) D2 to all other electrodes except Dl D3 to all other electrodes except D4 . D4 to all other electrodes except D3 . 5 6 uuf .5.0 uuf 4 5 uuf Mechanical Data Over-all length Greatest diameter of bulb Minimum useful screen diameter Base, small -shell duodecal-12 pin Basing, 12F Base alignment Dl -D2 trace aligns with pin No. 4 and tube axis Positive voltage on Dl deflects beam approx toward pin No. 4 Positive voltage on D3 deflects beam approx toward pin No. 1 .8 inches 3 t inches ..2% inches 10 degrees MAXIMUM RATINGS Design Center Values Anode No. 1 voltage Anode No. 2 voltage Grid No. 1 voltage Negative -bias value Positive -bias value Peak heater cathode voltage* Heater negative with respect to cathode During equipment warm-up period not exceeding 15 seconds . After equipment warm-up period not exceeding 15 seconds . Heater positive with respect to cathode Peak voltage between anode No. 2 and any deflection electrode 1000 max volts d -c 2500 max volts d -c 200 max volts d -c 2 max volts d -c 410 max volts d -c 140 max volts d -c 140 max volts d -c 500 max volts EQUIPMENT DESIGN RANGES Anode No. 1 voltage Grid No. 1 voltage for visual cut-off of spot Anode No. 1 current for any operating condition . Deflection factors Dl and D2 D3 and D4 20% to 35% of Eb2 volts 0% to 6.3% of Eb2 volts -15 to +10 microamperes 115 to 145 volts d -c per inch per kv of Eb2 110 to 140 volts d -c per inch per kv of Eb2 EXAMPLES OF USE OF DESIGN RANGES For anode No. 2 voltage of Anode No. 1 voltage Grid No. 1 voltage for visual cut-off Deflection factors Dl and D2 D3 and D4 1000 200 to 350 0 to 63 115 to 145 110 to 140 2000 volts 400 to 700 volts 0 to 126 volts 230 to 290 volts d -c per inch 220 to 280 volts d -c per inch MAXIMUM CIRCUIT VALUES Grid No. 1 circuit resistance Resistance in any deflecting-electrode circuit t15 max megohms 5.0 max megohms *Cathode should be returned to one side or to the mid -tap of the heater transformer winding. tIt is recommended that the deflecting -electrode -circuit resistance be approximately equal. PERSISTENCE CHARACTERISTIC P1 PHOSPHOR 100 80 60 I 40 30 20 GL-3MP 1 ETI413 PAGE 3 3-50 10 8 ME 6 4 -.=.= IMM 3 2 0 K -69087-72A326 0 02 0 04 TIME AFTER EXCITATION s REMOVED IN SECONDS SPECTRAL -ENERGY EMISSION CHARACTERISTIC P1 PHOSPHOR 103 0.06 12-13-49 80 (.5 CC zw I- 60 I cc > 40 CC 20 2500 4000 K -69087-72A327 4500 5000 5500 6000 WAVELENGTH IN ANGSTROMS 6500 12-13-49 GL- 3MP 1 En -313 PAGE 4 3-50 OUTLINE CATHODE-RAY TUBE GL-3MP1 3.000± I-" 16 4. 3u 2 LT USEFUL SCREEN DIA. 3.875" 8'± SMALL -SHELL --4. 12 -PIN DUODECAL BASE NO. BI 2-43 1U 1JJ I- DIA 16 3-50 (I.1M) Filing No. 8850 N-15084AZ Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 1-23-47 VACUUM SWITCHES APPLICATION DATA ETI-196 PAGE 1 4-45 GENERAL ()ELECTRIC VACUUM SWITCHES ETI-196 PAGE 2 4-45 DESCRIPTION The vacuum switch is a vacuum device incorporating movable and fixed contacts, arranged so that a mechanical motion of the movable contact makes or breaks the switch circuit. The motion of the movable contact is obtained by means of a flexible diaphragm mounted on a metal cup to which the glass or metal body of the switch is attached. The fixed contact leads are mounted on the body of the switch. Vacuum switches are useful in any application requiring the control of high voltages or high currents where space requirements are stringent. Since the contacts are mounted in a vacuum, they are relatively free from the effects of corrosion and arcing, are unaffected by dust or oxidation, and will give longer wear than exposed contacts. MECHANICAL ADVANTAGES Because General Electric vacuum switches oper- ate mechanically, a variety of actuating means may be used. The flexible diaphragm used eliminates the necessity for an external fulcrum. This transmits movement to the contacts and acts as a natural fulcrum for the operating arm. Movement is obtained from the mechanism to be controlled, or from other apparatus to suit the application. This movement is often provided by a slow moving cam or by the movement of a thermostat. Air or liquid bellows, a rod -linkage system, an electrically operated relay, or almost any other means can be used to operate the vacuum switch. This is possible because a very small force is required to achieve the switching motion. There are several advantages which result from this feature. The vacuum switch is capable of being operated over a wide range of speed. Operation from several cycles an hour to several thousand cycles per minute are permissible. The contacts of the switches close without vibra- tion, enabling them to be mounted on or near delicate instruments. ELECTRICAL ADVANTAGES The vacuum construction of the switch allows the use of close spacings between fixed and movable contacts, with the result that it is possible to interrupt high voltages although the movable contact travels only a few thousandths of an inch. This small movement brings about an economy of space that is possible only with vacuum switches. In air -break switches, the breaking of the switch contact is accompanied by an ionization of the air present around the contacts. This ionization causes an arc to occur, with subsequent heat loss, and the switch is unable to break the circuit rapidly. In vacuum switches, there being no gas present as a source of ions, a very rapid break is made. (See under "Installation and Operation.") Under some conditions an arc or spark will occur, but this condition will exist only when the switch is handling high currents. If such currents were broken by an equivalent air switch, welded contacts might easily result. The fact that arcs rarely occur, or, if they occur, are not in air, brings up two important advantages of vacuum switches over air switches. Because of the enclosed construction, G -E switches are especially valuable for use in flour mills, magnesium finishing rooms, and similar dust -laden atmos- pheres. In addition to operating under the adverse condi- tions described above, G -E vacuum switches are capable of operating under any liquid which provides sufficient insulation for the leads so that an external short is obviated. Some liquids, such as transformer oil, will actually increase the external voltage breakdown allowable, and thus reduce maintenance to a minimum. RATINGS Vacuum switches are rated in terms of the follow- cence is a phenomenon which will not affect the ing characteristics: operation of the switch. Internal Hold -Off Voltage This is the maximum voltage that the vacuum switch can hold off internally; that is, when the movable contact is held against one stationary contact and the voltage is applied across the two stationary contacts. This voltage is usually expressed as an rms value. The criterion of proper operation is absence of gas discharge. With the test voltage applied, there should be no evidence of a gas discharge. Fluores- External Hold -Off Voltage This is the maximum voltage that the vacuum switch should be called upon to hold off externally; that is, from stationary contact to stationary contact, or from stationary contact to movable contact. This rating must specify an ambient humidity and assumes that the external surface of the switch is moderately clean. It is also necessary to provide corona shields of some sort in order to achieve the hold -off voltage stated for this rating. This test is normally made at some external pressure lower than that encountered at sea level. This pressure is stated in terms of altitude in feet above sea level. Interrupting Rating This is a measure of the life expectancy of the vacuum switch. The life of the switch will depend upon the application in which it is used. Low -current, high -voltage applications cause no perceptible contact wear, and the life depends upon the mechanical strength of the switch diaphragm. Highcurrent, low -voltage applications cause vaporization of the contact material, with subsequent shortening of life. Interrupting ratings are usually given on the basis of a certain number of allowable operations for several conditions of voltage and current. Initial Tension Initial tension is the force required on the movable contact to open the circuit, if the movable contact is touching one of the stationary contacts. This force is usually measured on the operating arm N" from the switch diaphragm. Operating Force Operating force is the energy required to move the movable contact from one stationary contact to the other, including initial tension. The measurement is usually made on the operating arm at a point N" from the diaphragm. ETI-196 PAGE 3 4-45 Arm Travel The travel of the operating arm is the motion required to move the movable contact from one stationary contact to the other. The measurement is usually made on the operating arm 5A" from the diaphragm. Maximum Continuous Current This is the maximum current that may be carried safely by the switch for an indefinite period of time. Maximum Allowable Force on Operating Arm This is maximum force which may be applied to any point on the operating arm. This rating is important in that it dictates the design of the actuating mechanism. This rating must be observed carefully, as a value higher than that recommended will result in decreased life. TYPES OF SWITCHES Vacuum switches are made in two general types. The first type, exemplified by the FA -6 and FA -15, is an all-purpose switch for general switching applications. The second type, of which the GL -1S21* is an example, was designed with particular em- phasis on external voltage breakdown. This results in a switch which is extremely useful at greatly reduced air pressures, such as are encountered in aircraft applications. APPLICATIONS# There are six properties switch which enable it to be used with extreme advantage in many applications. 1. Vacuum Construction practically no gas present. This means that by proper actuator design a very rapid break may be achieved, and a very high induced voltage may be obtained as a consequence of this rapid break. The fact that the switch contacts are enclosed in a vacuum contributes in general to all the various advantages found in the use of these switches. Operation of other switches at extremely high altitudes is complicated by the fact that the distance between contacts having a given voltage impressed across them must be greatly increased due to the lowered air pressure. For example, if a given distance is able to hold off 30 kilovolts at sea level, it will arc over at approximately 7 kilovolts at an altitude of 50,000 feet. Vacuum switches are unaffected internally by high -altitude operation. Externally, it is comparatively easy to provide a sufficiently long path so that the external voltage breakdown is adequate. Applications made possible by the vacuum construction also take advantage of the fact that an arc cannot be sustained easily in a vacuum. When a circuit is broken by a vacuum switch, the arc produced by ionization of gas is minimized, inas- "Write to General Electric Company, Electronics Department, Tube Sales Section for bulletin. 2. Enclosed Construction It is very often necessary to operate switches in the presence of gases, oil spray, heavy dust concentrations, or under conditions that adversely affect the operation of electrical equipment. The sealed construction of vacuum switches causes them to work most efficiently under such conditions. The enclosed construction also minimizes the hazard of switching in an explosive atmosphere, as for example, in a flour mill. 3. Small Size and Weight Inch -for -inch and ounce -for -ounce the vacuum switch will handle higher voltages at higher currents than any other type of switch. For example, a 20 -ampere circuit -breaker for 600 volts alternating current may be approximately 2 cubic feet in volume. The FA -15 vacuum switch will break 10 amperes at 600 volts alternating current and is only one # Circuits shown in ETI-196 are examples of possible tube applications and the description and illustration of them does not convey to the purchaser of tubes any license under patent rights of General Electric Company. E TI- 1 96 PAGE 4 4-45 five -hundreth the volume. The vacuum switch will not operate at the above current for too many operations, but in any application where size or weight is the prime consideration, the vacuum switch can be used to advantage. 4. Low Operating Force There are many applications where the force available for actuating a switch is very small. Among these are thermostats used in air-conditioning control. With the use of a vacuum switch, it is possible to handle the full load current without the use of auxiliary devices between the actuating force and the circuit to be controlled. The circuit shown in Fig. 1 illustrates the vacuum ACTUATING COIL INDICATOR ns GA SAMPLING STREAM VACUUM SWITCH 110V K-9033508 10-14-44 Fig. 1-Wheatstone Bridge Circuit for Sampling Gases Dissolved in Liquid Electronics Engineering Manual, Vol. 111, P-73, McGraw-Hill Book Co., Inc. switch used in a Wheatstone Bridge method of sampling gases dissolved in liquid. The vacuum switch is used as one arm of the bridge. In such an application the amount of power that can be used is very small. This circuit acts as a sensitive switching relay. It is useful in applications where there is a minimum of power available and where the indicating force is small in magnitude. 5. High -Speed Operation Vacuum switches are constructed with the moving parts so light in weight that the speed at which they are capable of operating is limited more by the actuating equipment used than by the switch itself. Vacuum switches are capable of being operated at several thousand cycles per minute and will accommodate a motion produced by an actuator when the rate of operation is changed rapidly over a period of a second or two. 6. Low -Speed Operation The vacuum switch is so designed that there is no definite resting point or on -off position. For this reason the switch may be used in any application where the motion available for switching is ex- tremely slow. An application such as this is the operation of the switch by means of a cam, where the cam might be operated by some searching or hunting mech- anism. INSTALLATION AND OPERATION Mechanical Installation of G -E vacuum switches is simplified by their compact construction and by the fact that they can be mounted in any position. Mounting may be accomplished by clamping to any portion of the body of the metal switch, FA -6, but glass -body switches must be mounted by clamping to the cylindrical metal cup. Suggested mounting arrangements will be found at the end of this article. The clamping should be uniform, not unduly tight, and care should be used not to damage glass parts and seals. It is important that the clamp does not come closer than to the glass seal on the cup. The actuator design must allow for overtravel of the operating mechanism so that sufficient contact pressure is applied to the switch. If this provision is not made, the maximum force allowable on the operating arm will be exceeded and serious damage to the diaphragm may result. The pressure required to make good contact is much less than the rated safe pressure. Pressure in excess of the rated safe pressure imposes undue strains on the insulating glass as well as on the diaphragm. Any connections made to the fixed contact leads should be flexible enough so that no part of the mounting strain is carried on the leads themselves. When a vacuum switch is mounted in a holder it will be noticed that there is a great deal of freedom of movement of the operating arm. It is therefore necessary to design the actuator so that it holds the operating arm in position between the two stationary contacts. Electrical Electrical connection must be made either to the lead wire which is welded to the body in the case of the metal switch, or to the cap in the case of the glass switches. As explained previously, the quick break given by a vacuum switch causes high induced voltages. It is desirable to use a small capacitor (about 0.01 to 0.05 microfarad) across the contacts or across the load on non -inductive circuits when the current is more than 5 amperes. With inductive circuits the sum of the normal and transient voltages must be limited by a capacitor to a value not greater than the maximum voltage rating of the switch. It is also advisable, in highly inductive circuits, to limit the value of capacitance required by use of a shunt resistance across the load. This resistance, while increasing the total current in the circuit will reduce greatly the amount of capacitance required. Too large a capacitance will cause unnecessary wear and welding at the contacts. When it is necessary to use a capacitance greater than 0.5 microfarad a small amount of series resistance may be used to slow up the discharge but care must be taken that the capacitor -resistance combination limits properly the voltage peak. Since failure of the switch will leave the load circuit closed, this switch is not recommended for applications where a closed cir- ETI- 1 96 PAGE 5 4-45 cuit would result in failure of the apparatus unless an auxiliary means of opening the circuit is provided. For high -voltage circuits, it is important that adequate precautions be taken to prevent corona. VACUUM SWITCH MOUNTINGS VACUUM SWITCH .030" I" FELT PAD CLAMP to 4 !"-.1.3" Fr I K.9033568 K-9033568 SPRINGS TO GIVE DESIRED CONTACT PRESSURE FOR GIVEN MOVEMENT OF SWITCHING MECHANISM K-9033568 Fig 3 Fig 2 12-12-44 BOLTS OR SET SCREWS FELT PAD 25DIA.HOL O15"COPPER STRIP 12.12-44 Fig. 4 HOLE FOR SUPPORTING BOLT. 7" 16 K-9033568 12.12-44 NOTE: DRLL 25/32" DIAM. HOLE IN 3/8" X I I/4 ''X 13/4'' BAKELITE THEN CUT THE BAKELITE IN HALF. 12-12-44 Fig. 5 ETI-196 PAGE 6 4-45 S" .030 16 K-9033568 9., 19" 32 37 32 32 16" 1" ti .16 32 IF36" 116 Fig. 6 12-12-44 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 1-46 (3M) Filing No 8850 GL -5627 /FA -6 DESCRIPTION AND RATING ETI-197A PAGE 1 12-48 VACUUM SWITCH DESCRIPTION The GL-5627/FA-6 single -pole double -throw metal -clad vacuum switch is designed to perform switching operations at high speed with low operating pressure and long contact life. The totally enclosed, vacuum -sealed construction offers many advantages; protection from dust, weather, and other corrosive influences which may affect adversely the life of switch elements; the contacts retain a low contact resistance suitable for low -voltage use with very little heating, and require very little power to operate. Although the spacing between contacts is only 0.070 inch (approx) there is no arc -over inside the switch. Changes in air pressure and humidity have no effect on the breakdown because the contacts are in vacuum. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Electrical Hold -off voltage Internal External*, at sea level Interrupting rating, resistive load For total life of 1000 operations at 550 volts a -c rms For total life of 1,000,000 operations at 550 volts a -c rms For total life of 500,000,000 operations at 550 volts a -c rms 550 volts rms 550 volts rms 10 amperes a -c rms 2 amperes a -c rms 0.1 ampere a -c GENERAL ha ELECTRIC Supersedes ETI-197 dated 4-45 GL -5627 /FA -6 ETI.197A PAGE 2 12-48 TECHNICAL INFORMATION (CONT'D) Mechanical Net weight, approximate Shipping weight, approximate MAXIMUM RATINGS Internal hold -off voltage Maximum continuous current Ambient temperature range Maximum allowable force on operating arm * At 50 per cent humidity. 11A ounces 3 pounds 550 volts rms 10 amperes rms -40 to +100 C 500 grams 12-48 (9M) Filing No. 8850 MAX. DI A CENTER POLE \\\ InAP PROX. "MAX .850 DIA 769 MAXD. FLEXIBLE IL DIAPHRAGM\ PINCHED a WELDED MAX. DIA..200" OPERATING ARM I" 116-16 MAX. 16 4f in 16-4 -.3126. 9" DIA. 64 MAX. OUTLINE GL-5627/FA-6 VACUUM SWITCH K-518.8108 6-4-48 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. GL-5626/FA-15 DESCRIPTION AND RATING ETI.198A PAGE 1 8-48 VACUUM SWITCH DESCRIPTION The GL -5626/FA -15 single -pole double -throw vacuum switch is designed for operation in highspeed relay construction, in d -c circuits involving high inductance, and in installations that require the circuit to be opened by a slow movement. Since the switch is enclosed in a vacuum, its operation is unaffected by atmospheric conditions, con- tacts are free from contamination, and resistance re- mains low. The construction minimizes arcing at the contacts. Only a few thousandths of an inch move- ment is required to interrupt rated current. This feature coupled with low operating pressure and light weight of the moving parts enables the GL -5626/ FA -15 to be operated by a small amount of power. TECHNICAL INFORMATION These data are for reference only. For design information refer to specifications. GENERAL CHARACTERISTICS Electrical Hold -off voltage Internal External*, at sea level Interrupting rating, resistive load For total life of 1000 operations at 3000 volts a -c rms For total life of 100,000 operations at 3000 volts a -c rms For total life of 1,000,000 operations at 3000 volts a -c rms For total life of 500,000,000 operations at 3000 volts a -c rms 3000 volts rms 3000 volts rms 10 amperes a -c rms 3 amperes a -c rms 1 ampere a -c rms 0 1 ampere a -c rms GENERAL ELECTRIC Supersedes ETI-198 dated 4-45 GL-5626/FA-15 ETI-198A PAGE 2 8-48 TECHNICAL INFORMATION (CONT'D) Mechanical Net weight, approximate Shipping weight, approximate 1 ounce 4 ounces MAXIMUM RATINGS Internal hold -off voltage Maximum continuous current Ambient temperature range Maximum allowable force on operating arm * At 50 per cent humidity. 3000 volts rms 15 amperes rms -40 C to +100 C 500 grams FLEXIBLE CABLE 32-32 + 3" 8-16 8-48 (9M) Filing No. 8850 13" MAX Ti DIA. COMMON TERMINAL CLAMP HERE DEGREE OF TAPER LESS THAN M9"MIN. 7.. re MAX. PINCHED a WELDED -0 TO .200" MAX. DIAM. 3" MAX. 6i32 MAX. .747.1--..000044"'. DIA. FLEXIBLE DIAPHRAGM .769" MAX. DIA. 23312"-+1I6" OPERATING ARM K-5340821 M A X,j 64 DIA. OUTLINE GL-5626/FA-15 VACUUM SWITCH 6-4-48 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. INTERCHANGEABILITY / CHART SOCKET INFORMATION INTERCHANGEABILITY CHART TUBES INDUSTRIAL TYPES ETI-199A PAGE 1 10-49 The tubes listed below under "other types" are arranged in numerical order and the G -E equivalent types, which are completely interchangeable, are shown in the adjacent column. Where types of other manufacturers are omitted, there are, to our knowl- edge, no G -E types completely interchangeable. For information on types not included in this listing, consult your nearest G -E dealer, distributor, or write to the Electronics Department, General Electric Company, Schenectady 5, N. Y. Other Types G -E Equivalent Type No. CE -1** CE-lt CE -11V CE -20 CE -21 CE -31V CE -306 EL-C3J EL-C6J EL -5685 NL-710 NL-715/5557 RK-25 RK-25B RK-28A RK-30 RK-31 RK-36 RK-39 RK-44 RK-47 RK-57 RK-58 RK-60 HF-60 T-155 HF-130 HF-130 203-A 204-A 207 211 211C 211C 211D 217C 242A 242B 242C 250T PJ-22 GL-868/PJ-23 GL -917 GL -827 GL -920 GL -919 GL -5545 GL -5632 GL -5545 GL -5545 GL -5632 GL-5557/FG-17 GL -802 GL -802 GL -803 GL -800 GL -830-B GL -806 GL -807 GL -837 GL -814 GL -805 GL -838 GL -1641 GL -8005 GL -806 GL -835 FP -285 GL -203-A GL -204-A GL -207 GL -211 GL -835 FP -285 FP -285 GL -217-C GL -242-C GL -242-C GL -242-C GL -806 **Vacuum -type phototube Other Types 250 -TL 261-A 266-B 276-A 295-A 303-A 304-A F -307-A KU -627 311 311CT 311CT 311T VR-105 VR-150 WE -319-A WE -322-A 331-A 342-B 342-C F -353-A F -357-A 358-A 361-A 376-A WL-33 WL-41 WL-414 WL-469 WL-473 WL-469 WL-473 WL-502-A WL-616 WL-672-A WL-678 575-A WT -606 WL-734 WL-735 G -E Equivalent Type No. GL -806 GL -835 GL -266-B GL -276-A GL -203-A GL -203-A GL -204-A GL -207 GL -627 GL -211 GL -835 FP -285 GL -211 GL -0C3 GL -0D3 GL -872-A GL -803 GL -805 GL -242-C GL -242-C GL -872-A GL -857-B GL -858 GL -835 GL -276-A GL-5720/FG-33 GL-5830/FG-41 GL -414 FP -285 GL -473 FP -285 GL -473 GL -502-A GL-5625/KC-4 GL -672-A GL -678 GL -575-A GL -2D21 PJ-22 GL-868/PJ-23 Supersedes ETI-199 dated 4-45 Other Types 800 801 802 803 805 806 807 809 810 811-A 812-A 813 814 815 816 826 828 829-B 833-A 835 836 837 838 842 843 845 849 851 857-B 858 862 866 866-A 866-A/866 868 869-B 870-A 872 872-A 872-A/872 G -E Equivalent Type No. GL -800 GL -801-A GL -802 GL -803 GL -805 GL -806 GL -807 GL -809 GL -810 GL -811-A GL -812-A GL -813 GL -814 GL -815 GL -816 GL -826 GL -828 GL -829-B GL -833-A GL -835 GL -836 GL -837 GL -838 GL -842 GL -843 GL -845 GL -849 GL -851 GL -857-B GL -858 GL -862-A GL -866-A GL -866-A GL -866-A GL-868/PJ-23 GL -869-B GL -870-A GL -872-A GL -872-A GL -872-A 1 -Gas -type phototube ETI-199A PAGE 2 10-49 n Other Types G -E Equivalent Type No. Other Types G -E Equivalent Type No. Other Types G -E Equivalent Type No. 880 889 889-A 889-R 889 -R -A 891 891-R 892 892-R 893 893-A 893 -A -R 895 895-R WL-896 898 898-A 905 930-B 938 942 GL -880 GL -889-A GL -889-A GL -889 -R -A GL -889 -R -A GL -891 GL -891-R GL -892 GL -892-R GL -893-A GL -893-A GL -893 -A -R GL -895 GL -895-R GL-5620/FB-50 GL -898-A GL -898-A GL -805 GL -830-B GL -838 GL -842 945 949 951 966 966-A 967 972 972-A 975-A 1613 1614 1616 1619 1623 1624 1625 1701 2050 WL-5550/681 WL-5551/652 WL-5552/651 GL -845 GL -849 GL -851 GL -866-A GL -866-A GL-5557/FG-17 GL -872-A GL -872-A GL -575-A GL -1613 GL -1614 GL -1616 GL -1619 GL -1623 GL -1624 GL -1625 GL-5557/FG-17 GL -502-A* GL-5550/GL-415 GL-5551/FG-271 GL-5552/FG-235-A WL-5553/655 WL-5554/679 WL-5555/653-B 5556 WL-5557/17 WL-5558/32 WL-5559/57 WL-5561/104 WL-5685 5691 5692 5693 8002 8002-R 8005 8008 8009 8012-A 8013-A 8020 GL-5553/FG-258-A GL-5554/FG-259-B GL-5555/FG-238-B GL-5556/PJ-8 GL-5557/FG-17 GL-5558/FG-32 GL-5559/FG-57 GL-5561/FG-104 GL -5545 GL -5691 GL -5692 GL -5693 GL -8002 GL -8002-R GL -8005 GL -8008 GL -8009 GL -8012-A GL -8013-A GL -8020 * Metal tube-shell connected to cathode. NOTE: In general, tubes of the same class (i.e., gas -filled control tubes, high -vacuum rectifiers, phototubes, etc.) that have the same type numbers but different letter prefixes are completely interchangeable; e.g., RX-884, GL -884, etc. 10-49 (10M) Filing No. 8850 Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. FOR INDUSTRY BASING AND SOCKET CHART ETI-200A PAGE 1 1-47 The outline drawings and dimensions of electronic tube bases included in this section of the manual are for your convenience in determining the size or style of tube sockets or connectors required for your particular application. The proper choice of socket or connector usually depends upon the requirements of the particular equipment design. The sockets and connectors listed here are some of those commonly used for industrial tubes. In addition to those included in this chart, there are other variations of tube sockets and connectors available for special requirements. Notes for Sockets Note 1. Angle -type sockets listed below for medium and super jumbo 4 -pin bases can be furnished with or without bayonet -locking device. Note 2. Angle -type sockets for super -jumbo, 4 -pin bases, can be supplied to accommodate either front or back panel wiring. Note 3. Angle -type sockets for jumbo 4 -pin bases are not included in the tables below but can be supplied upon request. Note 4. The wafer or ceramic type of socket listed has the metal mounting plate soldered to the ceramic part of the socket to avoid cracking of the ceramic base in mounting. Note 5. Sockets listed as "Industrial types" are furnished with screw -driver connections for ease of installation and maintenance. Consult your local G -E office, distributor or dealer for your socket requirements, or write to: COMPONENT & UNIVERSAL PARTS SECTION SPECIALTY DIVISION ELECTRONICS DEPARTMENT GENERAL ELECTRIC COMPANY SYRACUSE, NEW YORK TUBE TYPE DESCRIPTION OF BASE, CAP OR TERMINAL OUTLINE REFERENCE DESCRIPTION OF SOCKET OR CAP CONNECTOR G -E SOCKET NUMBER IGNITRONS FG-235-A Anode, Cathode & Ignitor Terminal Leads ETI-109 Tube Outline . FG-259-B.... FG-238-B FG-258-A Anode, Cathode & Ignitor Terminal Leads Anode, Cathode & Ignitor Terminal Leads Anode, Cathode & Ignitor ETI-110 Tube Outline } ETI-111 Tube Outline } ETI-112 ....... Terminal Leads Tube Outline FG-271 Anode, Cathode & Ignitor Terminal Leads } ETI-113 Tube Outline . .. GL -415 (Anode & Ignitor Terminal Leads ) ETI-114 Tube Outline f Cooling Clamp (Hex Hd. Rt.) or Cooling Clamp (Hex Hd. Left) See sheet CR7503 P-543 dated 8/7/44 GL -427 {Anode, Cathode & Ignitor Terminal Leads ETI-115 JTube Outline Supersedes ETI-200 dated 4-45 ETI-200A PAGE 2 1-47 TUBE TYPE DESCRIPTION OF BASE, CAP OR TERMINAL OUTLINE REFERENCE DESCRIPTION OF SOCKET OR CAP CONNECTOR G -E SOCKET NUMBER THYRATRONS (cont.) GL -3C23 Medium 4 -Pin Bayonet GL -3C23 FG-17 Anode Cap, Medium Medium 4 -Pin Bayonet FG-17 FG-27-A Anode Cap, Medium Medium 4 -Pin Bayonet FG-27-A FG-33 Anode Cap, Medium Medium 4 -Pin Bayonet FG-33 FG-41 FG-41 FG-57 Anode Cap, Medium Special 4 -Pin Anode Cap, Skirted Large Medium 4 -Pin Bayonet FG-57 FG-67 Anode Cap, Medium Medium 4 -Pin Bayonet FG-67 FG-81-A Anode Cap, Medium Medium 4 -Pin Bayonet FG-81-A Anode Cap, Medium ETI-201, Fig. 17 Shell Type or j Wafer Type or 1 High -voltage Type or ( Angle Type { ETI-201, f Medium Cap Connector Shell Type or { ET1-201, )1 Wafer Type or Fig. 17 High -voltage Type or Angle Type { ETI-201, } Medium Cap Connector Shell Type or f ETI-201, I Wafer Type or 1 Fig. 17 1 High -voltage Type or Angle Type ETI-201, } Medium Cap Connector I ETI-201, Fig. 17 Shell Type or Wafer Type or High -voltage Type or Angle Type { ETI-201, f Medium Cap Connector { E1, 1 FTI-20 Special 4 -Pin Socket ETI-201, Fig. 11 1 t Large Cap Connector J 1 Shell Type or { ETI-201, j Wafer Type or Fig. 17 High -voltage Type or Angle Type { ETI-201, Fig. 3 1i Medium Cap Connector ) ETI-201, Fig. 17 Shell Type or ) Wafer Type or High -voltage Type or Angle Type I ETI-201, 1 Medium Cap Connector { ETI-201, Fig. 17 Shell Type or 1. Wafer Type or High -voltage Type or Angle Type { ETI-201, Fig. 3 Medium Cap Connector ) 103J516 or 103J165 or 102J305 or 104J50 102J300 103J516 or 103J165 or 102J305 or 104J50 102J300 103J516 or 103J165 or 102J305 or 104J50 102J300 103J516 or 103J165 or 102J305 or 104J50 102J300 103,1522 102J299 103J516 or 103J165 or 102J305 or 104J50 102J300 103J516 or 103J165 or 102J305 or 104J50 102J300 103J516 or 103J165 or 102J305 or 104J50 102J300 TUBE TYPE DESCRIPTION OF BASE, CAP OR TERMINAL OUTLINE REFERENCE DESCRIPTION OF SOCKET OR CAP CONNECTOR G -E SOCKET NUMBER ETI-200A PAGE 3 1-47 THYRATRONS (cont.) FG-95 Medium 4 -Pin Bayonet FG-95 FG-95 FG-97 Anode Cap, Medium Grid Cap, Medium Medium 4 -Pin Bayonet FG-97 FG-97 FG-98-A Anode Cap, Medium Grid Cap, Medium Medium 4 -Pin Bayonet FG-98-A FG-98-A FG-105 Anode Cap, Medium Grid Cap, Medium Super -Jumbo, 4 -Pin FG-105 FG-105 FG-154 FG-154 FG-154 FG-172 FG-172 Anode Cap, Large Control Grid Cap, Large Medium 4 -Pin Bayonet Anode Cap, Medium Grid Cap, Medium {Anode, Filament, Shield Grid, Terminal Leads {Control Grid 84 Cathode Terminal Leads ETI-201, Fig. 17 r Shell Type or j Wafer Type or High -voltage Type or Angle Type { ETI-201, Fig. 3 Medium Cap Connector ) { ETI-201, Fi g. 3 e Medium Cap Connector ) Shell Type or { ETI-201, Jr Wafer Type or Fig. 17 High -voltage Type or Angle Type f ETI, 201, 1 Medium Cap Connector 103J516 or 1033165 or 1023305 or 104J50 1023300 102J300 103J516 or 1033165 or 102J305 or 104350 1023300 { ETI-201, Fig. 3 1 e Medium Cap Connector ) Shell Type or { ETI-201, j Wafer Type or Fig. 17 1 High -voltage Type or Angle Type { ETI-201, Fi g. 3 'e Medium Cap Connector I { ETI-201, Fig. 3 fETI-201, 1 Fig. 20 I, Medium Cap Connector j 1 Shell Type or i Angle Type or Angle Type (Back Wired) { ETI-201, Fig. 7 1 , Large Cap Connector ) - ETI-201, 1 Large Cap Connector Fig. 7 Shell Type or { ETI-201, ji Wafer Type or Fig. 17 High -voltage Type or Angle Type { ETI-201, Fig. 3 1 e Medium Cap Connector ) { ET I-20 Fig. 31, } Medium Cap Connector f ETI-130 `Tube Outline { ETI-130 Tube Outline 1 Special Mount, 2 Required 1023300 1033516 or 103J165 or 102J305 or 104J50 102J300 102J300 104352 1033173 or 1033174 102J299 1023299 103J516 or 103J165 or 1023305 or 104J50 102J300 102J300 102J304 ETI-200A PAGE 4 1-47 TUBE TYPE THYRATRONS FG-178-A FG-178-A GL -393-A GL -393-A GL -414 GL -502-A GL -546 GL -627 GL -627 GL -672 GL -672 GL -678 GL -678 GL -884 GL -885 GL -2050 GL -2051 KENOTRONS KC -4 KC -4 FP 85 A FP -85-A DESCRIPTION OF BASE, CAP OR TERMINAL OUTLINE REFERENCE DESCRIPTION OF SOCKET OR CAP CONNECTOR G -E SOCKET NUMBER Small 4 -Pin { ETI-201, Wafer Type or Fig. 15 Angle Type Anode Cap, Small Medium -Shell Octal 5 -Pin f 1 ETI-201, Fig. 1 } Small Cap Connector ETI-201, 1 Wafer Type, Octal or Fig. 26 f Industrial Octal Anode Cap, Small { ETI-201, Fie. 2 } Small Cap Connector (Anode, Filament, Control -Grid, { ETI-133 and Cathode Terminal Leads Tube Outline) Special Mount, 2 Required Small -Wafer Octal 8 -Pin ETI-201, 1 Wafer Type, Octal or { Fig. 27 f Industrial Octal Miniature Button, 7 -Pin { ETI-201, Fig. 28 1 Industrial 7 -Pin Miniature Small Shell Super -Jumbo 4 -Pin ETI-201, Shell Type or Fig. 21 Angle Type Anode Cap, Medium Large Shell Super -Jumbo 4 -Pin { ETI-201, Fig. 3 ETI-201, Fig. 22 1 f Medium Cap Connector } Shell Type or Angle Type Anode Cap, Skirted Medium f 1 ETI-201, 1f Medium Cap Connector Special 4 -Pin f ETI-201, 1 1 Fig. 36 f ' Anode Cap, Skirted Medium Small -Shell Octal 6 -Pin Small 5 -Pin Small -Shell Octal 8 -Pin Small -Shell Octal 8 -Pin { ETI-201 Fig. 6 1 Medium Cap Connector 1 f ETI-201, 1 Wafer Type, Octal or Fig. 24 f Industrial Octal { ETI-201, Fig. 16 } Wafer Type f ETI-201, 1 Wafer Type, Octal or 1 Fig. 23 f Industrial Octal ETI-201, Wafer Type, Octal or { Fig. 23 Industrial Octal 103J165 or 104J50 102J302 103J164 or 103358 1023302 1023304 1033164 or 103358 103J172 104352 or 1033173 1023300 103452 or 1033173 102J300 .... 1023300 103364 or 103358 1033166 103J164 or 103358 1033164 or 103358 Special 2 -Pin Anode Cap, Skirted Large Medium 4 -Pin Bayonet Anode Cap, Medium { ETI-201, Fig. 34 1, Special 2 -Pin Socket, Shell Type 1033523 ) ( ETI-201, } Large Cap Connector Fig. 12 ETI-201, { Fig. 17 Shell Type or Wafer Type or High -Voltage Type or Angle Type 1023299 1033516 or 1033165 Of 1023305 or 104350 f ETI-201, } Medium Cap Connector 1 Fig. 3 1023300 TUBE TYPE DESCRIPTION OF BASE, CAP OR TERMINAL OUTLINE REFERENCE I DESCRIPTION OF SOCKET OR CAP CONNECTOR G -E SOCKET NUMBER KENOTRONS (cont.) FP -400 Medium 4 -Pin Bayonet GL -411 GL -411 Special 2 -Pin Anode Cap, Skirted Large GL -8020 Medium 4 -Pin Bayonet GL -8020 Anode Cap, Medium i Shell Type or f ETI-201, J Wafer Type or Fig. 17 High -Voltage or Angle Type 1033516 or 1033165, or 1023305 or 104350 f 1 ETI-201, Fig. 34 1 Special 2 -Pin Socket, Shell Type 1033523 I EFTi I-201 1 g. 12 Large Cap Connector f Shell Type or f ETI-201, i Wafer Type or 1 Fig. 17 1 High -Voltage Type or Angle Type I ETI-201 , 1flMedium Cap Connector 102J299 1033516 or 103J165 or 1023305 or 104350 1023300 PHANOTRONS FG-32 FG-32 FG-104 FG-104 FG-166 FG-190 FG-280 GL -575:A GL -575-A GL -673 GL -673 GL -857-B GL -857-B Medium 4 -Pin Bayonet Anode Cap, Medium Super -Jumbo 4 -Pin i Shell Type or f ETI-201, J Wafer Type or 1 Fig. 17 1 High -Voltage Type or Angle Type f 1 E T- 201, FigI. 3 } Medium Cap Connector ETI-201, Fig. 20 Shell Type or Angle Type or Angle Type (Back Wired) Anode Cap, Large f EFTigI-2. 70 1, 1 Large Cap Connector f Anode and Filament 1Terminal Leads {'Anode and Filament Terminal Leads {Anode and Filament Terminal Leads Jumbo, 4 -Large Pin, Bayonet Anode Cap, Medium f(TuEbTeIO-1u4t9line)1, Special Mount, 2 Required f1TuEbTeIO-1u5t0line)1, Special Mount, 2 Required ETI-151 ,Tube Outline 1 f Special Mount, 2 Required f ETI-201, 1 ( Shell Type or ) Wafer Type f 1 ETI -2031, 1 Medium Cap Connector Super Jumbo 4 -Pin, Bayonet Anode Cap, Medium 2 -Terminal Base ETI-201, I Fig. 20 ( She 11 Typeor ) Angle Type I i ETI-201, ) J Medium Cap Connector { ETI-201, Fig. 37 } Panel Type Mounting Anode Cap, Skirted Large { ETI-201, J Large Cap Connector 1033516 or 1033165 or 1023305 or 104350 1023300 104J52 or 103J173 or 1033174 101361 1023304 1023304 1023304 104351 or 1033162 1023300 104352 or 1033173 1023300 P-7765662 102J299 ETI-200A PAGE 5 1-47 ETI-200A PAGE 6 1-47 TUBE TYPE DESCRIPTION OF BASE, CAP OR TERMINAL OUTLINE REFERENCE DESCRIPTION OF SOCKET OR CAP CONNECTOR G -E SOCKET NUMBER ,.. PHANOTRONS (cont.) GL -866-A/866 GL -866-A/866 GL -869-B GL -869-B GL -872-A/872 GL -872-A/872 PLIOTRONS PJ-7 PJ-8 PJ-21 FP -54 FP -54 FP -62 -207 GL -207 GL -207 FP -265 FP -265 Medium 4 -Pin Bayonet {Anode Cap, Medium (with Insulating Collar) Special 2 -Terminal Base Anode Cap, Skirted Large Jumbo 4 -Pin ' Anode Cap, Medium Medium 4 -Pin Bayonet Medium 4 -Pin Bayonet Medium 4 -Pin Bayonet Medium 4 -Pin Bayonet Control Grid Cap, Small Flexible Leads Water -Cooled Anode Filament Terminal Leads Grid Terminal Super -Jumbo 4 -Pin Anode Cap, Large 1 3hel1 Type or 1 ETI-201, j Wafer type or Fig. 17 1 High -Voltage Type or j Angle Type - { ETI-201, Fig. 3 } Medium Cap Connector { ETI-201, Fig. 32 }Cathode Mounting ETI-201, ) Anode Mounting or { Fig. 8 Large Cap Connector { ETI-201, } 3he1l Type or Fig. 19 Wafer Type { ETI-201, Fig. 3 1 Medium Cap Connector )( 103J516 or 103J165 or 102J305 or 104J50 102J300 7651887G3 7651887G5 or 1023.299 104J51 or 103J162 102J300 1 Shell Type Of f ETI-201, Fig. 17 Wafer Type or I High -Voltage Type or I Angle Type Medium Cap Connector Shell Type or f ETI-201 , Fig. 17 Wafer Type or High -Voltage Type or Angle Type t Medium Cap Connector f ETI-201, 1 Fig. 17 Shell Type or Wafer Type or High -Voltage Type or Angle Type Medium Cap Connector Shell Type or f ETI-201, jr Wafer Type or Fig. 17 High -Voltage Type or Angle Type 103J516 or 103J165 or 102J305 or 104J50 102J300 103J516 or 103J165 or 102J305 or 104J50 102J300 103J516 or 103J165 or 102J305 or 104J50 102J300 103J516 or 103J165 or 102J305 or 104J50 { ETI-201, Fig. 1 } Small Cap.Connector 102J302 ETI-161 Tube Outline} ETI-162 {GL Tube Outline) Water Jacket ML ..... 74-74287G1 f ETI-162 1Tube Outline .... f ETI-162 ) Tube Outline ..... f ETI-201, Shell Type or Fig. 20 Angle Type . f 1 ETI-201, Fig. 7 } Large Cap Connector .... 104J52 or 103J173 102J299 TUBE TYPE PLIOTRONS (cont.) FP -285 GL -592 GL -592 GL -592 GL -807 GL -807 GL -810 GL -810 GL -810 GL -833-A GL -833-A GL -851 GL -851 GL -862-A GL -862-A GL -862-A GL -880 GL -880 GL -880 GL -889-A GL -889-A GL -889-A DESCRIPTION OF BASE, CAP OR TERMINAL OUTLINE REFERENCE DESCRIPTION OF SOCKET OR CAP CONNECTOR G -E SOCKET NUMBER ETI-200A PAGE 7 1-47 Jumbo 4 -Pin Anode Terminal (Special) Grid Terminals Filament Terminals Medium 5 -Pin Anode Cap, Small Jumbo 4 -Pin Anode Cap, Skirted Medium Grid Cap, Medium Anode lis Grid Terminals Filament Terminals Grid 85 Filament Terminals Anode Cap, Skirted Large Water -Cooled Anode Grid Terminal Filament Terminal Leads Water -Cooolleedd Anode Filament Terminals Grid Terminals Water -Cooled Anode Filament Terminals Grid Terminals ETI-201, 1 Shell Type or Fig. 19 f Wafer Type I ETI-245 Tube Outline) Cloverleaf Cap Connector ETI-2451i Tube Outline) Grid Cap Connectors (2) { ETI- 245 } Tube Outline Wafer Type 1 ETI-201, 1 Fig. 18 Wafer Type f 1 ETI-201, Fig. 1 } Small Cap Connector { ETI-201, Shell Type or Fig. 19 1 Wafer Type { ETI-201,Medium Fig. 4 Cap Connector { ETI-201, 5 Medium CapConnector ETI-167 Tube Outline f Anode 8s Grid Connectors f ETI-167 Tube Outlinef Filament Connectors 1 ETI-201, Fig. 30 1 Cathode Mounting -)? ETI-201, 1 Anode Mounting or Fig. 10 j Large Cap Connector 1. { ETI-169 } Tube Outline Water Jacket f ETI-169 Tube Outline' . ... f ETI-201, Fig. 35 J f ETI-170 1 (Tube Outline'' Water Jacket TuEbTeI-O17u0tline}Flialammeenntt Connectors (2) { ETI-170 Tube Outline) Grid Connectors (2) I ETI-171 Tube Outline Water Jacket { ETI-171 1 Tube Outline Filament Connectors (2) f ETI-171 Tube Outline} Grid Connectors (2) 104J51 or 1013162 1023301 1023307 1023306 103J166 102J302 104J51 or 1013162 1023300 1023300 .... .. .. 7651887G3 7651887G5 or 1023299 ML 7663852G1 ' ' .. .. 776769461 .... ML 7473962G1 ETI-200A PAGE 8 1-47 TUBE TYPE PLIOTRONS (cont.) GL -889R -A GL -889R -A GL -889R -A GL -891 GL -891 GL -891 GL -891-R GL -891-R GL -891-R GL -892 GL -892 GL -892 GL -892-R GL -892-R GL -892-R GL -893-A GL -893-A GL -893-A GL -893A -R GL -893A -R GL -893A -R DESCRIPTION OF BASE, CAP OR TERMINAL OUTLINE REFERENCE DESCRIPTION OF SOCKET OR CAP CONNECTOR G -E SOCKET NUMBER Forced -Air -Cooled Anode f ETX-181 1Tube Outline' Filament Terminals f 1 ETX-209, Fig. 12 1 f Filament Connectors Grid TerminalsFig. ' ETX-209, 10 } Grid Connectors Water -Cooled Anode {Tube Water Jacket M - 7474287G1 Grid Terminal ETI-172 t Tube Outline' ''''''' " Filament Terminals r ETI-201, 1 1 Fig. 31 J '' Forced -Air -Cooled Anode { ETX-183 Tube Outline Grid Terminal { ETX-209, 1 Fig. 12 j Filament Terminals Water -Cooled Anode ETX-209, 1 { Fig. 30 f .... Tube ETI-173 1OWautetrJlaciknete'747428M7LG- 1 Grid Terminal ETI-173 Tube Outline' Filament Terminals ETI-201, 1 { Fig. 31 j '' Forced -Air -Cooled Anode ETX-185 1 {Tube Outline) Grid Terminal ETX-209, , Fig. 12 1 ' " Filament Terminals Water -Cooled Anode { ETX-209, Fig. 30 5 '' ETI-174 (Tube Outline Water Jacket ML 7651761 Grid Terminal ETI-174 Tube Outline } Filament Terminals Forced -Air -Cooled Anode { ETI-201, Fig 38 j ETX-187 Tube Outline Grid Terminal f ETX-187 1Tube Outline ... .. .... Filament Terminals { ETX-209, Fig. 34 .... TUBE TYPE DESCRIPTION OF BASE, CAP OR TERMINAL OUTLINE REFERENCE DESCRIPTION OF SOCKET OR CAP CONNECTOR G -E SOCKET NUMBER ETI-200A PAGE 9 1-47 GL -895-R GL -895-R GL -895-R GL -8002 Forced -Air -Cooled Anode Grid Terminals Filament Terminals Water -Cooled Anode GL -8002 Filament Terminals GL -8002 GL -8002-R Grid Terminals Force -Air -Cooled Anode GL -8002-R Filament Terminals GL -8002-R GLOW TUBES GL-0A3/VR75 Grid Terminals Small -Shell Octal 6 -Pin GL-0B3/VR90 Small -Shell Octal 6 -Pin GL-0C3/VR105 Small -Shell Octal 6 -Pin GL-0D3/VR150 Small -Shell Octal 6 -Pin GL -874 PHOTOTUBES PJ-22 Medium 4 -Pin Bayonet Tapered Small 4 -Pin FJ-405 Medium 4 -Pin Bayonet GL-868/PJ-23 Tapered Small 4 -Pin GL-1P29/FJ-401 Tapered Small 4 -Pin GL -441 Tapered Small 4 -Pin GL -917 Tapered Small 4 -Pin GL -917 Anode Cap, Small f ETX-189 } t Tube Outline f ETX-189 1Tube Outline f ETX-189 1 Tube Outlinef ..... ETI-175 {Tube Outlineft Water Jacket fl ETI-175 1 Tube Outlinef ..... .... ETI-175 t Tube Outlinef ... . f ETX-201 t t Tube Outlinef { ETX-201 t Tube Outlinef .. f ETX-201 t ITube Outlinef ETI-201, 1 Industrial Octal or { Fig. 24 f Wafer Type, Octal f ETI-201, Industrial Octal or t Fig. 24 Wafer Type, Octal ETI-201, Industrial Octal or Fig. 24 Wafer Type, Octal f ETI-201, Industrial Octal or Fig. 24 Wafer Type, Octal ETI-201, Fig. 17 I Shell Type or J Wafer Type or High -Voltage Type or Angle Type ETI-201, Wafer Type or Fig. 14 Angle Type Shell Type or f ETI-201, f Wafer Type or t Fig. 17 High -Voltage Type or Angle Type ETI-201, Wafer Type or {' Fig. 14 }Angle Type ETI-201, Wafer Type or Fig. 14 Angle Type { ETI-201, } Wafer Type or Fig. 14 Angle Type { ETI-201, } Wafer Type or Fig. 14 Angle Type { ETI-201, Fig. 1 } Small Cap Connector .... .... L7473098G1 .... .. , . .... 103358 or 1033164 103358 or 103J164 103358 or 103J164 103J58 or 103J164 1033516 or 1033165 or 1023305 or 104350 1033165 or 104J50 103J516 or 1033165 or 102J305 or 104350 1033165 or 104J50 1033165 or 104350 103J165 or 104350 1033165 or 104J50 102J302 ETI-200A PAGE 10 1-47 TUBE TYPE DESCRIPTION OF BASE, CAP OR TERMINAL OUTLINE REFERENCE DESCRIPTION OF SOCKET OR CAP CONNECTOR G -E SOCKET NUMBER PHOTOTUBES (cont.) GL -918 GL -919 GL -919 GL -920 GL -921 GL -921 GL -922 GL -922 GL -923 GL -927 GL -929 GL -930 GL -931-A GL -935 GL -935 BALLAST TUBES B-6 B-25 B-46 B-47 FB-50 RESISTANCE VACUUM GAGES FA -13 FA -14 Tapered Small 4 -Pin Tapered Small 4 -Pin ETI-201, Fig. 14 I ETI-201, Fig. 14 Wafer Type or Angle Type Wafer Type or Angle Type Cathode Cap, Small Small 4 -Pin Anode Terminal { ETI-201, Fig. 1 } Small Cap Connector ETI-201, Wafer Type or Fig. 15 Angle Type { ETI-187 } Tube Outline) Anode Connector Cathode Terminal Anode Terminal { ETI-187 ' Tube Outline) Cathode Socket { ETI-188 } Tube Outline Anode Connector Cathode Terminal Small 4 -Pin Peewee 3 -Pin Intermediate -Shell Octal 5 -Pin Intermediate -Shell Octal 5 -Pin Small -Shell Submagnal 11 -Pin Intermediate -Shell Octal 5 -Pin f ETI-188 1Tube Outline Cathode Socket ETI-201, Wafer Type or Fig. 15 Angle Type { ETI-201, Fig. 13 Special Peewee 3 -Pin 1 ETI-201, Wafer Type, Octal or Fig. 25InJ dustrial Octal { ETI-201, 1 Wafer Type, Octal or Fig. 25 5 Industrial Octal ETI-201, 1 Fig. 29 f { ETI-201, Fig. 25 1 Wafer Type, Octal or Industrial Octal Anode Cap, Miniature { ETI-201 } Tube Outline St'd Medium Lamp Base St'd Medium Lamp Base St'd Medium Lamp Base St'd Medium Lamp Base St'd Medium Lamp Base { ETI-201, } Screw Base Type Fig. 40 f ETI-201, Fig. 39 } Screw Base Type I 1 ETI-201,It Fig. 39 ) Screw Base Type { ETI-201, Fig. 39 1 i Screw Base Type ) { ETI-201, Fig. 39 } Screw Base Type Filament Leads Tapered Small 4 -Pin { ETI-195 Tube Outline} ETI-201, Wafer Type or Fig. 14 Angle Type 103J165 or 104350 1033165 or 104350 1023302 103J165 or 104350 1 1023303 102J303 1033165 or 104350 1133130 1033164 or 103358 1033164 or 103358 .... 1033164 or 103358 .... " ' 103J165 or 104J50 TUBE TYPE DESCRIPTION OF BASE, CAP OR TERMINAL OUTLINE REFERENCE DESCRIPTION OF SOCKET OR CAP CONNECTOR G -E SOCKET NUMBER VACUUM SWITCHES FA -6 Terminal Leads and Actuator FA -15 Terminal Leads and Actuator VACUUM CAPACITORS { ETI-197 } See Special Suggested Mountings Tube Outline on Application Data, ETI-196 { ETI-198 ) See Special Suggested Mountings Tube Outliner on Application Data, ETI-196 GL -1L21* Cap Type Terminals (Two) f ETI- 262 } (Tube Outline Connector * GL -1L22, -23, -24, -25, -33, -36 and -38 use same connector, ML -7477177G2. ML 7477177G2 ETI-200A PAGE 11 1-47 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 1.47 (8M) Filing No. 8850 TUBES FOR INDUSTRY OUTLINES CAPS AND BASES SMALL No. 3907, RMA No. C1-1 CAP OUTLINES SMALL ETI-201A PAGE 1 1-47 .360"Dy- K-4903591 42d±.00 " Fig. 1 MEDIUM No. 3903, RMA No. C1-5 .437111,015" 3-10-45 K-9033841 Fig. 2 SKIRTED MEDIUM No. 3904, RMA No. C1-6 - 566" DIA. K-6966486 K-9033573 3-10-45 Supersedes ETI-201 dated 4-45 Fig. 4 3-10-45 ETI -201A PAGE 2 1-47 SKIRTED MEDIUM No. 3995 CAP OUTLINES SKIRTED MEDIUM No. 3985 .566" +.0 07" .500" 1.093" - 1.625" - 566" 1 : ,,,,, . . i . *1' " .11 1 ,1 i .500..t.0l0" ''''"...... 4000"t.010" .., *. i 1.670" 4.:Nz;' Fig. 5 LARGE No. 3917, RMA No. C1-8 N-15093AZ Fig. 6 SKIRTED LARGE No. 3905-A, RMA_No. C1-9 .8 cetr" 10-31-46 H 8 0ut_i_ . = .00 DIA. .8 3" ±.0i7" 1.813" ±.017" K-4955973 Fig. 7 81211 f.0I7" 3-10-45 K-6966485 1.406" ±.(ZifiA* Fig. 8 p 3-10-45 SKIRTED LARGE No. 1904, RMA No. C1-10 CAP OUTLINES SKIRTED LARGE No. 1902 .80o -IF .00 DIA, 0 .8I 3 +.017" 2.2 81 " .1.017 " -.180 Ot°14- DIA, f .813' ±017" ETI-201A PAGE 3 1-47 F 2.750 " .017 " ---2.230" -.017" DIA. K-6966488 Fig. 9 SKIRTED LARGE No. 3909 , :Ii.007" 1-.800 DI .813" 2%017" 1.25o" -.063 " K-6966482 2.656..1-n2" Fig. 11 3.10-45 K-9033522 J 2.658" ... 17" DIA. Fig. 10 SKIRTED LARGE No. 3912 3-19-45 ..s,.........1111..11j .800.4-,3014 DIA. I ,875" 1.017" L.- 2:062" 3-19-45 K-4373344 2.375" -1D'0IA17. " Fig. 12 3-21-45 ETI-201A PAGE 4 1-47 BASE OUTLINES PEEWEE 3 -PIN No. 3313, RMA No. A3-1 14-.610", 6551'471 1.5t00' t.oie .937+ .-....017 .1 MAX tIi. J 1---- .045" -MAX. t .365"Mti. .., ...., 344" DIA. ,'DA. 1"MAX. ALL PINS A01W41 .122" Ivim ..au A Iiire .093"-± .003" DIA. .24e TAPERED SMALL 4 -PIN No. 4101, RMA No. A4-3 1.436" ±. 22" i .596"MAX. .065 .-., MAX. 4 I r /150' MIN. .1271.R03" C10),.. --------Z__.: -'"----.-..... 64d 'PIT" i Ir. x trie), 43 I 11 I ,a4 3" 'LS: 2 PINS .1661.°°3'DIA. K-9033572 Fig. 13 3-19-45 K-4903590 Fig. 14 3-25-45 SMALL 4 -PIN No. 4108, RMA No. A4-5 SMALL 5 -PIN No. 5108, RMA No. A5-6 1 .843" .022" .065"M 1.436" ia.0¢2- .450"M1N .59C 7 DIA.-, .,,,___. 1. 15 1".t.o14" 2 PINS doe..."' .125"1-w V ., _,,, 4 .437 " Ia 0, 2 PINS 15d. It .0 03" DIA. I .468 " --1- 41..............0.° .64d'oix K-4909060 Fig. 15 3-21-45 K-9033571 1 1.436" 1 022" 1=1,M111.1.M=F .84.,..-.022" w- .007 " .065" MAX. II It 14M5I N0. " . 596MAX.' i -'--1151" ±'0141 5 PINS .12 --Ig2" .010p Vi''' 446 V., .75e 2 DIA. 0I Itire 4 AVVirA, 5 C 60° allirlri-tsi/O° 30° 30 Fig. 16 3-19-45 BASE OUTLINES ETI-201A PAGE 5 1-47 MEDIUM 4 -PIN WITH BAYONET *No. 4102 and 4103, RMA No. A4-10 075.t..004" 1".00S. .077. DIA -Ii- 1.236102d _t__ 1.680" x.022" 065 MAX 45 "MI 1' 596"MAX 1 PINS .125"--.003- DIA. 1357"1-0,H.. aillftaN 0640' DIA. 5.1,,I4.g03., -"Milk 41 MMIIPP..-- DIA W .437' ,,,, In /24 6 1 1 468" MEDIUM 5 -PIN No. 5106, RMA No. A5-11 t 5 PINS .12 5" t .003" DIA. 1 680"3.on r .065"MAX .--. t t UH H.450" MIN. .PAF; 1.3520311: 'biA --...-1 .75 O'DIA Al #. 110 (iiil 30 ° Illi.) K-6966493 Fig. 17 3-19-45 K-6966487 Fig. 18 3-21-45 JUMBO 4 -PIN WITH BAYONET No. 1839, RMA No. A4-29 .094"3.015' 1.855"±nteDIA.- DIA. N .0130"3.002" 1 1.165" 3.01," 1 1 1.6703.034" .255 ±.02e , $0 a 4eet s IA 3-003" .687" :VW Pr SUPER -JUMBO 4 -PIN WITH BAYONET No. 4310, RMA No. A4-18 H2.187"- 2.219"DIA. H .094"t'015" 1 1.438" .073"MM. ±.054 f ,718"MAX. 1.546" ±.020° -1- _175"MIN. IifLi:likk 4 PINS 187 "1-.003 DIA. 75e I 562 vgljj \lima i .000" DIA. K-6966492 .687" Fig. 19 3-21-45 K-4955974 Fig. 20 3-28-45 *4102-Composition Shell 4103-Metal Shell ETI-201A PAGE 6 1-47 BASE OUTLINES SMALL -SHELL, SUPER -JUMBO 4 -PIN SUPER -JUMBO 4 -PIN yIN. No. 411, RMA No. A4-15 1 1.187" 1.875" ,580" F.062' MAX. r -I .280" MAX. H tf .700"MAX. i 1. 422'- No. 3982 2.172°- 2. 2,3 4 1---..--1 1.453" 2.125' 4 PINS 140;" T .750" MAX. 1.469' i1 ALL PINS .186"±.003" .562 AN 1/4s.i.v. vo,.',-7. (Qi e 11 0 j l diffr .750" 0 d .011=1111,/ 1 1.000"0 .562" 000" Fig. 21 Fig. 22 SMALL -SHELL OCTAL 8 -PIN No. 8529, RMA No. B8-1 SMALL -SHELL OCTAL 6 -PIN No. 6529, RMA No. B6-3 1 843" +.022" -.001" t - 1 560° i35'' Max. om. '..r MAX. 490" .317" MAX. ---- 1151" t g 144' _'.022'.035" 035 1 1.393" 1 ; 8o4n3, MAX. mAx. 1 1t.o39n3"" i i MIN. MAX.m.5g" I' i .355" .437 1 .135' .490 DIA. 095"MAx *ON FINISHEDF,3 sToul,RA D 0 317" MAX. I it I 1 III ,,,,,,...oi4" DIA. t .355" MIN. t 437" MAX .095" MAX . ON FINISHED TUBE, ADD 0030" FOR SOLDER. ALL PINS .093"±.003tDIA. ALL PINS 093' ±.003" DIA 45° 055" 45° 0...''..*4 5' 0 4 0 " R ,oilpi* MAX. kg, .0, firalt4 45° ism Wr© 44 OP Old \ 01priJlAIllb ......W.' 45° 4 22 45° 45° 005" mAx --- Al I P -P, 5 ...........4110P 45° .. oil btiap4r.,-1i4a.1m"l..ii,lgpi-e0-plw . 45° Viripri Cr I Fi 140 tii0A I b ............... 4 ° 222, 45 040"R. .687" K-9033851 Fig. 23 3-24-45 K-9033848 Fig. 24 3-24-45 BASE OUTLINES ETI-201A PAGE 7 1-47 INTERMEDIATE -SHELL OCTAL 5 -PIN No. 5437, RMA No. B5-10 r -, I -.007 MAX. 1393" 1-.022" ' 1 / .1135"__.1-14r' ,-f ' 5,60. 4I 0.!AAX.DIA. MAX L- k_. i 3155" 437 MIN. MAX. 1 1 1 .317" MAX. .055" MAX. .... 1235'1275"DIA. ALL' PINS .093"T .003" DIA 45° 4 .095"MAX. ON FINISHED TUBE,ADD .030" FOR SOLDER .040"R. trodsui . . I Wf411I1A1I11152,' I Al imi 45° "MP VA ill 45° .687 " tiliV \.. l.4 IrirMAh. 45. 45° 2 L r '-I' +.F K-9033849 45° Fig. 25 SMALL -WAFER OCTAL 8 -PIN No. 8540, RMA No. B8-21 I001 i. I 1 I 135'2-I 147 1 .(I)013AX'.' '-' MAX. 1 .490* 3m55N". 'MAX. MAX' 1 1 i 3-24-45 .317VAX. .286°1;F: .095"MAX. ON FINISHED TUBE, ADD 0.030° FOR SOLDER. 114 MAX. * 45* 45° Alliellipo 5° ALL PINS .093ut.003" DIA, .040"R AditkiP2,.W...PpAAoilrik. IVirl r4.ff Ak 45° .:4 Calt 45° .687" *ilk a (1141616., 41101VW 45* 450 45° K-9033847 Fig. 27 3-24-45 MEDIUM -SHELL OCTAL 5 -PIN No. 5433, RMA No. B5-15 1 ..1002827"" .035' MAX. i 1.637" ± 022" 5I60..,' .490' M3.1X"71 H MAX, i - / 1 1 f 1 t MIN lAX. .PA1ZX" . -. . 1.352"218R "DIA. .095"MAX. ON FINISHED TUBE, ADD 0.030" FOR SOLDER. 5° ALL PINS .093"3.003 "DIA. 45° '0M5A5X" */41P*Ilk -. 1 v&iWmin 45° ....."'...... 45* 040"R. 4.4,16.,.)......_ 45. .687" IV ofircigilk.,- 45° Ng* ........... 45° 2 45° K-9033850 Fig. 26 3-24-45 MINIATURE BUTTON 7 -PIN II.RMANo. E7-1 9" M. MAX. 11 1 11 MIN. .1-6 . 3'MAX.DIA. 7 PINS 45° 50 .040"±.002" DIA. ir - 450 .:..iit...i 8 45° 5. K-9033845 Fig. 28 3-19-45 ETI-201A PAGE 1-47 BASE OUTLINES SMALL -SHELL SUBMAGNAL 11 -PIN No. 11343, RMA No. B11-33 I ,.,,,,L,: 035" - MAX. ...- ..... I 1. 4 II' 560...4 0II II 4 .356' MIN. 437" MAX. .090' I + 317",,T.3 1 300 MAX DIA 1ST I 0111....ver., PIN NO .I 111166. .055" MAX ei4iA6rD41 - ICAll_reor0s ALL PINS .093"1..00 040" R .750" IL .007" AT PIN TIPS V4111k eVlW, t...,43111 i K-9033574 .135" MAX Fig. 29 3-27-45 T.05.3" I .9:9. 11011;"1 K-6966474 BASE 3232-11 120" BASE 3117 RMA No. A3-23 3 93IctD22. 1111 1 iil .668" .688" 312" 11:," 2 618 411.1en F.7. 50" .063" .125' _J__4, t .., 1 Fig. 30 BASE 3502 RMA No. A3-20 3-21-45 (Mgetrt0/ 1.250" 120* 1082" 4.125" 4-rx .500.3-.0--0-5-"-_ 437,±.005" r-ir 1 r 1 CENTER TAP PIN CONNEC TED TO BASE SNELL _i80 __0MAAINX .104.011/11 I 2125" MAX 2 625"10g: 2094" 3.125" 3.064" .100" MA , 031" 49;" 1,025"- i .126.±010,. ...... 11 11 .668" 6138" Jillibb. 063" .125" 7501-1 125" TWO PINS K-9033548 Fig. 31 I 3-26-45 K.6966478 Fig. 32 3-27-45 BASE 3601 2.625"zir 3i.244"" -- -won= I 1219" 0± 1 'IV" 025" 4 PINS 312"-tga' 1 1 1.375' ±.017. DIA * Allh VILIF BASE OUTLINES BASE 3701 2.438"...:A3.3' 2.875" =.064" M=MME.. ll . 1"MIN 111 PouIltEMRit.i IN INA rah is 2.192" MX. .625"t"2' .31;.IN.t.S007 DIA. " ETI.201A PAGE 9 1-47 K-3846066 K-6966483 .469"t0= \:_- _.215,ti.010 ° Fig. 33 3-27-45 K-4373346 Fig. 34 BASE 3908 00 lik ti# 4---, IIIP ' ., -..-1 1-7625't.0l0' DIA. Ill 1.,500" 313..1.5.-i05r Ill A. 111 finmr a-. oncl 2.125.125' i 2.000+'.W5+ I II Fig. 35 3-26-45 BASE 3985 RMA No. A4-30 MAX. MINIMMI .080" ....002" .094" t .015" 969" 65"/ T020 1_ .078 L 0" N. 1 1874-4 ±.003" 4 PINS. I.867"MAX. 2.308" zg. I 45° () * 687" o) AIM/ 45° MO .971" Fig. 36 3-27-45 ETI-201 A PAGE 10 1-47 BASE 3911 BASE OUTLINES BASE 6628 1.50(51.1.- 0,A 0 6- 3/8 G DIA. D DIA. K-9033549 -1-em. 250"MAX XXV' BASE SHELL IS ONNEGTED TO ONE FILAMENT LEAD WITHIN BASE A DIA E MAXIUM SPACE FOR CONNECTOR BETWEEN WING NUT AND LOCK NUT IS 3/16" DIMENSIONS IN INCHES MIN. MAX. A 3.310. 3.300. B 1965" 2035" C D 1.465" 6250 1.535" 6.375" E 1.875" 2.250" F 0215" 0285" G 0.590" 0.660 Fig. 37 3-26-45 K-5188125 Fig. 38 3-26-45 MEDIUM LAMP BASE No. 102 MEDIUM LAMP BASE No. 118 K-5185217 5-46 (7M) Filing No. 8850 INSULATOR .938" 1062"+2117--.1 STANDARD MEDIUM LAMP BASE AS PER NEMA SUPPLY STANDARD 234-252 Fig. 39 3-27-45 STANDARD MEDIUM LAMP BASE AS PER NEMA SUPPLY STANDARD 234-252 K-5182057 Fig. 40 3-27-45 Electronics Department GENERAL 0 ELECTRIC Schenectady, N. Y. TUBES FOR INDUSTRY OUTLINES --CAPS AND BASES SMALL Used on GL -393-A CAP OUTLINES SMALL /No. 3907, RTMA No. C1-1 ETI.201 B PAGE 1 12-50 K-9033841 .437'11.015" 1 +.00511 .406" ----- -01 .420 .35911±.015" DI A. Fig. 1 12-18-50 No. 4004C Used on GL -1000T K -69087-97A129 /Revised. 0101114 Fig. 2 No. 4005C Used on GL -1000T 0,00111% 12-6-46 -1.563115: 13" 16 # -63M41"IN. -"1.5631gi.4-- 13" 16 31" 64 MIN. K -69087-72A433 /New. i 7" 8 Fig. 3 12-11-50 K -69087-72A434 New. Supersedes ET1-201A dated 1-47 i---- 7 --1.1 13Fig. 4 12-11-50 ETI-20113 PAGE 2 12-50 MEDIUM . No. 3903, RTMA No. Cl -5 ilnk CAP OUTLINES SKIRTED MEDIUM . No. 3904, RTMA No. Cl -6 566"-4-.D0I0A.7 400 MIN. ."500 .400 MIN. -.566" I.od- DiA. K-6966486 1Revised. -,..1 .576 " DIA. Fig. 5 I .500 11 12-18-50 K-9033573 +Revised. 1'156" DIA. Fig. 6 1.312" 12-18-50 . No. 3935 005" 566"-f.DIA. t ti 311+ t' 1 el. .500" MIN. 111 4 - 16 SKIRTED MEDIUM No. 3995 .566" +_ .007" .500" 1.093" 1.625" K -69087-72A428 New. Fig. 7 12-22-50 Fig. 8 SKIRTED MEDIUM . No. Cl -27 CAP OUTLINES *No. C1-29 566" ±.007° 400" M I N. r%"- ,..... g, P g -,,di " ! i 500 1 .. ... I 1.000" .782" ri:On77-1 t .400" MIN. t 1.670" 1". ON FINISHED TUBE ADD 0.040" FOR SOLDER TO LENGTHS AFFECTED N-15093AZ 4 Revised. Fig. 9 12-18-50 N-15001 TC IONew. 1.625" Fig. 10 ET1-201 B PAGE 3 12-50 .500" i i .125" .I 6-15-48 K-4955973 LARGE No. 3917, RTMA No. C1-15 800±.00"ii DIA. I N .785" pn I LARGE . No. C1-8 ..* .800" ±.007" DIA. - 1 1.000" Fig. 11 812" :f.027" 9-15-50 K-9186042 New. ,I woo" DIA. Fig. 12 . 12-18-50 ETI-201B PAGE 4 12-50 CAP OUTLINES SKIRTED LARGE . No. 3905, RTMA No. CI -9 ---.800' ,t01007", 713" MIN. i .8 3" 1.813" SKIRTED LARGE No. 1904, RTMA No. Cl -10 &800+.007 DIA. f .813 -i# .713" 1 MIN. 2.2 81 " K-6966485 4Revised. 4 06" 1 Fig. 13 SKIRTED LARGE No. 3912 "-2,230" DIA- ON FINISHED TUBE ADD 0.060" FOR SOLDER TO LENGTHS AFFECTED 12-18-50 K-6966488 Revised. Fig. 14 SKIRTED LARGE No. 1902, RTMA No. C1-30 12-18-50 1ff% NW -.I BOdt0101041 .713"M . i t .813" 1 2.062" ±.034" -0. 80(5±.00i L D A. i .813' -.1.-.017" 2.750 " +.017 " -*--- 2.375" ±b(117. " K-4373344 Revised. Fig. 15 2.658" -.81A:1 8-16-48 K-9033522 Fig. 16 12-18-50 *No. J1-1 TERMINAL OUTLINES *No. J1-8 ETI-20113 PAGE 5 12-50 437" MIN. 937" MAX_ .625" MIN. 1.093" MAX. K-9186044 New. 007 \43711D1D-I.A10. A0" Fig. 17 12-18-50 K-9186039 4N ew. *No. J1-9 \mit ±.007" DIA. Fig. 18 12-18-50 *No. J1-10 .812" MIN. 1.125" MAX. .375" 4 ±.004" 1.125" MAX. K -69087-72A430 ew. Fig. 19 12-18-50 K -69087-72A431 Clew. Fig. 20 12-18-50 ETI-201 B PAGE 6 12-50 TERMINAL AND BASE OUTLINES *No. J1-13 .5351, +.00 711 D IA. No. J1-7 -1. .*67 4 .0v....,II .4- - DIA. t .625" MIN. ilr 1 .827" MAX. .406" MIN. t .656" MAX. MINIM K -69087-72A432 New. Fig. 21 12-18-50 K -69087-72A429 New. --4011111111 Fig. 22 12-18-50 BASE 3701 2.438" ' OD,An' i 2.675" ME it . 2 .19 2" PE, =.064" -111.111.1- II I" MIN i II .6250tooe IN i.i t2. A VY 2 PINS 312" t 007' C4A BASE 3502 . RTMA No. A3-20 2.625" DIA. 209 4" 125" .000"- .100'1' , .969 1.031" -82°" MIN. i .125+.005" -4 id .) .411111im. ''.-194)(' .063" _E.125" .750" ,25.. -.- .688"-. ..- .688"4- .312'1 .003D1A TWO PINS K-4373346 Fig. 23 3-27-45 K-6966478 Revised. Fig. 24 12-18-50 BASE 3117 . RTMA No. A3-23 BASE OUTLINES BASE 3911 RTMA No. FO -2 En -201B PAGE 7 12-50 ' 9 3 eO IA. 2.625 3.656' ..1)(°:IC?:- .969'y.{L-.594" { IFFFHFw WORM 1.031" *Mi.' MAX. 1 - --i 151- .. -- \3,a. 3t3" 2 PINS AMOR MUM ( J t 7 L5015 II," 500,97. NA 4'11.1161t1rMallak Vall4g=Il Nwtit 500,:.;%07?,16. 1\ 1111p47 / 4.125"-g; .:5§" Mii Ed loR ---T- 250 MAX .875" t.17. i BASE SHELL IS ONNECTED TO ONE FILAMENT LEAD WITHIN BASE K-6966474 'Revised. Fig. 25 12.18-50 K-9033549 Fig. 26 9.26.50 PEEWEE 3 -PIN No. 3313, RTMA No. A3-1 610"-.651cA-N-1 1 .500" .937u 447" MAX. .../ ., .04 5' MAX. .340" MIN. .344" DIA. ..ii I "DIA. 35MAX. "Aii) .122" Ai gar wire ALL PINS .0930±.003" DIA. .24e K-9033572 "Revised. Fig. 27 12-18-50 BASE 3908 . RTMA No. FO -3 1.812" 0411 q.,r3 vi) BOT BUSHINSM INSULH ATED FRGO SHELL , I. v \ I' BAND -v-I 1-,625'4.010" DIA. INSULATED mm I FROM SHELL Mil 1.--,-,-" 313"±i031 1111 II COM C,11 Mil" .3... _..1,. 2.125r-.125' zoocit TR:: II. K-6966483 'Revised. Fig. 28 12-18-50 ETI-201 B PAGE 8 12-50 BASE 3232-L1 * RTMA No. A3-80 120 DWARF -SHELL 4 -PIN BASE RTMA No. A4-26 2 PINS .I25"+.003" 2 PINS .I56"+.005* CENTER TAP PIN CONNECTED TO BASE SHELL K-9033548 *Revised. OUTLINE BASE NO. A3-80 Fig. 29 SMALL 4 -PIN No. 4108, RTMA No. A4-5 12-18-50 FOR PIN ALIGNMENT USE GAGE NO. GA4-I K -69087-72A426 fNew. *ON FINISHED TUBE, ADD .030" FOR SOLDER TO LENGTHS AFFECTED Fig. 30 12-18-50 MEDIUM 4 -PIN WITH BAYONET No. 4102 and 4103, RTMA No. A4-10 .195"- MAX. ON FINISHED TUBE, ADD 0.030" FOR SOLDER TO LENGTHS AFFECTED 468" .437" I I I,087" .065" MAL 1690" 4, .450" t .59t6" MIN. MAX. ON FINISHED TUBE, ADD 0.030" FOR SOLDER TO LENGTHS AFFECTED 1 ,468" K -69087-97A114 *Revised. *4102-Composition Shell 4103-Metal Shell Fig. 31 12-30-46 K -69087-97A116 *Revised. .640" Fig. 32 12-30-46 BASE OUTLINES JUMBO 4 -PIN WITH BAYONET No. 1839, RTMA No. A4-29 .094"±.015" 1.840'=1.867 DIA.--- 082" MAX. DIA, 1 I t 1.165"±020" I -ART---' k- f. 1.395- I 1.670" 030" MAX. .250 MIN. 4 i m," + 4PINS 3 4 45" n^r no, .187" ±.00 3" DIA. 688" mf, ..... _i_ K-6966492 fRevised. .971" Fig. 33 ON FINISHED TUBE ADD 0.060" FOR SOLDER TO LENGTHS AFFECTED 1 2-1 8-50 SUPER -JUMBO 4 -PIN WITH BAYONET No. 4310, RTMA No. A4-18 H- 2.I77"-2.219"DIA. .094.1'015" I 1.438" " . .T 2,125" .073" f ,7I8" MAX. mm II .260" ..- MAX. .... 1.546" .t.020" ..._ ON FINISHED TUBE ADD .our FOR SOLDER TO _t575 ,^111 LENGTHS AFFECTED 4r.111111.411-.4111*11k 4 Pals .. .187 "-F.00 3 DIA. .75f I Ar,s, 1- 562" 1.000" DIA. SMALL -SHELL, SUPER -JUMBO 4 -PIN No. 411, RTMA No. A4-15 1.187" 1.875" .580" M N. .280" MAX. 1. 4 22"1.469" 062' MA X. i .700"MAX. i ALL PINS .186"±.003" .562" itiFIN .2.Y/ 4-t lis-. ..4 rOA "ff....:.Y IF .750" 1.000 Fig. 34 SUPER -JUMBO 4 -PIN No. 3982 2.234" 2.1 7 2" I 1.453" .750" MAX. i iNf +.,010863""-.1 I-ALL PINS " t.010"I t080"-.002DIA. 2.1 25" tin 1.578" MIN. 7077"" I t .003 flg?: .093" MAX. 1,000" .750" L.!'#- .562" e. IiINV ET 1-20 1B PAGE 9 12-50 K-4955974 fRevised. Fig. 35 9-15-50 11-1 5000TC fRevised. Fig. 36 8-6-48 ETI-201B PAGE 10 12-50 No. 4260, RTMA No. A4-69 BASE OUTLINES No. 5004B USED ON GL -1000T .082" MAX. .250" MIN. .260" MAX. 90* 2.230" I DIA. .094" + ±.015" I 969" 'I .030li II MAX. 1.250" i 2-250" .18ri.00r .32ou MAX. i101 ,74A ......k %..._......._74 4 -P1.971"14- .oaz" MAX. 0 C3 i t 4,109" MAX7.1 *1,165" *17" 64 MAX. I1 15" " 64 MIN. 4 II111 1.86T" MAX. + i a I.§:: 2-2811" is., I. 32 -MAX. ortal& 716 1,413 .187"i'.002" DmV. ,,7,t3.:E. likAT " MAX. 4 PINS 11.11111157 32 n iiir *ON FINISID TUBE ADD .060 FOR SOLDER K -69087-72A427 +New. Fig. 37 12-18-50 K -69087-72A423 +New. Fig. 38 12-18-50 *BASE 3601 2.62511' SMALL 5 -PIN No. 5108, RTMA No. A5-6 3.219" 064" 1 'j 25" INIM 111111.11MIIM It g0" .3412PIIA .t.t 007" 1 1 K-3846066 Revised. I 37 5 ' -1.017" 01A. e 1/4.. A\ AIN q." VP emi0o. .469"°7 \____.219..±.007" Fig. 39 6-24-48 .843".065" 1.436" IIMI/WW=11, i i , MAX. 7":. I'll! 4 .450" .596" _ M_ItN_. MAX. ON FINISHED TUBE, 4-1.13e-1.165.2*. ADD 0.030" FOR SOLDER TO LENGTHS AFFECTED .195" MAX. PINS .125"f. '0' " .01:0:tt 0 .750" /' 0I - I , VZeili - (t."...-' '................ 6 0° 300 30 K -69087-97A117 +Revised. Fig. 40 12-30-46 BASE OUTLINES ET1-201B PAGE 11 12-50 MEDIUM 5 -PIN No. 5106, RTMA No. A5-11 No. 6102 11.352"±-0I0" DIA. I *"_' 1.680" 1.037" I, 065" ..... -+"--F + 5- .l +.00y c .oso"" L0871..-0.002.00"7 oo o -:003" DIA. V i.seo± " 11111 ta?" MIX.1.230.°15" -4-1.537 - .377 '-''' ON FINISHED TUBE, ADD 0.030" FOR SOLDER TO LENGTHS AFFECTED I 54 MAX.195". 5 PINS .125"±.003" el. ci 3 6 PINS EQUALLY SPACED 0 *ON FINISHED TUBE ADD .060' FOR SOLDER 60" Or 2 PINS .156",.00rD IA. ,r, 2 4 0 , (61 60° `/4,( 0 4171 PINS .125"±-°°2DIA. "..... 30° 30 '75°4°1 K -69087-97A118 fRevised. Fig. 41 12-30-46 K -69087-72A425 el ew. Fig. 42 12-18-50 . BASE 6628 RTMA No. FO -6 MINIATURE BUTTON 7 -PIN . RTMA No. E7-1 2" 4.%94" ell 704, I-, 1 ak -i0dW " 0.1 V4 1A, _ 6-3I8' STUDS 3 . 6_ -f- 035 DIA 41 lim,..1 SI I 6.313" 5.063" DIA. -..12.°°°'±.°35 ...1 500"t .035 R. 3345'1.035" DIA. i.5oo" * .035" R. H 250'1%035 ___... 2.0625" + .1875. MAXIMUM SPACE FOR CONNECTOR BETWEEN WING NUT AND LOCK NUT IS 0.188" N-15047TA Revised. Fig. 43 12-18-50 211 I I I II VI I 3" MAX. 9., -3M2 AX. MIN. 45° 45° 4 5° , 3- 45° 2 5 450 K -69087-97A134 f Revised. I 44%.... 8 45° 7 PINS .040"+ .002" DIA. Fig. 44 12-30-46 ETI-201 B PAGE 12 12-50 BASE OUTLINES MEDIUM 7 -PIN WITH BAYONET * RTMA No. A7-14 r----1.337:377* me .03' i wl."'" . 1.087" 1.660" 51203O: ,451041.NM. A" X. 51° 52° .125,±.003" 5 Pm DIA. 51" ; 0 5 P6 2: iliOW 51° (93 fi) 1 ' 1 C7) '156" ±.0512." 2 PINS . 26° 51° 855" 2° FOR PIN ALIGNMENT USE GAGE NO. GA7-2 K-9186047 New. OUTLINE Fig. 45 8-4-48 * SMALL -SHELL OCTAL 8 -PIN 17 ill I .843" 1 .560 MAX. .490" MAX'' No. B8-1 .0 M3AXX.. MIN i_____ ___. _______ L393" * iMAX. .300"-.3I7"- 1.136-1.175"-0 .075 "- .09F" *ON FINISHED TUBE, ADD 0.030" FOR SOLDER .040"-.055" ALL PINS .093"±."m 454 45° 45° (ItirtIM s. ,L;1411PAr#I taintip 450 5. WO WO 1/40 1 i glitt) -- , 450 221 450 040"R. . 687" / 450 K -69087-97A124 Revised. Fig. 46 12-30-46 No. 88-6 No. B7-7 * INTERMEDIATE-SHELL OCTAL 8 Pins 7 Pins No. B6-8 No. B5-10 6 Pins 5 Pins No. B8.11 No. B7-12 * MEDIUM-SHELL OCTAL 8 Pins 7 Pins No. B6-13 No. B5-15 6 Pins 5 Pins 843" tl + } .135" 560" , MAX. MAX. .480, .035" MAX. 1 1.393" s.a _ __ ..-1..A.--1 -3140-" MIN. -F. , .437"MAX. t -H 1.- .075"-095" * ON FINISHED TUBE, ADD 0.030" FOR SOLDER I Loer .055" MAX. 1.637" . 360MAX, .4 0 I I;1 MAX.61 1411 i _t__ 4 .340"MIN. 1127),.:* .30 0.'. .317" 1 5" -.095 " -6-1.337"- 1.577" -0. *.O0N7 FINIS2HvETDUBE, ALL PINS .093"x.003" ALL PINS .095"=,003" 45° 45. / .040"-.055" 450 ..........--...t 450 VIIIIPAIL\ ....4 a,.... .040"R. Itt0 .0 4 0"-.055" 45° .......0.145° liiik7 45 0160....... KM tigreaa\ 430 kW vikv, i .5. .687- 43 . ,.....-...., 4 . 1 (=1.M*7 1 k .r 1 rfi 117 1 I Ft 45° 45. 2 2* 45° 45° .040. R . .6E17" K -69087-97A125 Revised. Fig. 47 12-30-46 K -69087-97A1 26 Revised. Fig. 48 12-30-46 BASE OUTLINES ETI.201 B PAGE 13 12-50 SMALL -WAFER OCTAL 8 -PIN No. B8-21 .loo"-Th .035" MAX. .ssow ' MAX. .490- I -L- .300"-.51T" 1.271"-I.312" .340"YIN. '4MA5X7. " * 075"-.095" *ON FINISHED TUBE, AC 0.030" FOR SOLDER 040"-.055" ALL PINS 093'1..005" \ 45° 45° 45° 411-1.4100_4V0,-.1/"7"-p1"!P4l1a?11i1li9k. -.At 45° gi4rlgitiaI0rli-kFlFl_4it0iIrVLVeOie,ily 45° lairr-1.1 45° 45° 22/2 45° .040" R. .687" SMALL -SHELL SUBMAGNAL 11 -PIN No. 11343 0082Z7 " 1 " -:007" .560".4§0' MAX. .035" MAX, _4 t_ II ill 1 .355" MIN. 437" MAX. 090 AX 161 .055" MAX. 1.300" MAX DIA AP' ALL PINS .093"5.003 DIA. Vo " 7"DN" PIN N0.1 040 R , .750" t.007" AT PIN TIPS .135 MAX K -69087-97A127 *Revised. Fig. 49 12-30-46 K-9033574 Fig. 50 12-18-50 MEDIUM -SHELL MAGNAL 11 -PIN *No. 11248 -1.1,61e-1.656" DIA. SMALL -SHELL DUODECAL 12 -PIN RTMA No. B12-43 11.5001:MAX.D 14451 MIN.DIA. 1,437" .135" MAX. M1A13 X. 14- mem *A37" MAX.1,45a:1- .095" MAX. .040" R. -.317" MAX. 4 1611 3211 .560" MAX. .055" MAX. II PINS EQUALLY SPACED .093"±.003" K -69087-72A424 *N ew. 1.063" ±.007"4.1 AT PIN TIPS Fig. 51 *ON FINISHED TUBE, ADD .030" FOR SOLDER. 12-18-50 .872" .530" .430" I I MAX. MIN. U 1.372" + 320" .4I0"* U UU MIN. MAX. .598"-.635" .085%=.075" .I45"-.165" "01A. -"- ALL PINS .093"°311 1.063" K -69087-72A422 New, 150 Fig. 52 12 BARRIERS 12-18-50 ETI-201 B PAGE 14 12-50 MEDIUM LAMP BASE No. G2-2 BASE OUTLINES MEDIUM LAMP BASE No. G2-7 1" 4_ INSULATOR INSULATOR --+-1I: DIA 16 1.034"DIA. SCREW THREADS CONFORM TO ASA STANDARD C44-1931 K-5185217 +Revised. Fig. 53 5-13-47 K-5182057 +Revised. SCREW THREADS CONFORM TO ASA STANDARD C44 -1931 Fig. 54 11-6-47 Tube Divisions, Electronics Department GENERAL tidy ELECTRIC Schenectady, N. Y. 12-50 (11M) BASES, CAPS ET -T1502 PAGE 1 10-58 POWER TUBES This listing includes the bases and caps used on all tubes included in the Industrial and Transmitting Tube Manuals. The bases are arranged in order by number of contacts. Following these, the caps are arranged by size. The number references are the standard Electronic Industries Association numbers. These numbers are referenced on the tube outline drawings included with the technical data, enabling ready reference to the detailed drawings included here. In a few instances, the outline drawings on the data sheets have not been changed to show the EIA designation. In these cases the old General Electric identification is included in paranthesis with the EIA number. BASES 2 -PIN EIA No. A2-87 (3701) 2.457"DIA:' 2.187" DIA. 2 -PIN WITH CENTER STUD EIA No. A3-20 2 625" DIA. 2.875" DIA-.1 MAX. ft MIN. I" MAX. 625" 2 PINS 312' 2.007" DIA. 2:094" 3.125" zoo" .too" .969" .1320.. 1.031" MIN. .12gi.005" -i 4)k, `-.594fi,063" MAX. _025" 750" .125" .312"± .003 DIA. TWO PINS K-4373346 2 -PIN WITH CENTER STUD EIA No. A3-23 (3117) 11-25-53 K-6966478 .075" 1..003" MEDIUM 4 -PIN WITH BAYONET EIA No. A4-10 12-18-50 .078" 1.43$32" 1.230" + .02 0" 1.087" .065" I MAX, 1.680"+ .450" t .596" MIN. MAX. .195" MAX. -I.537"-1.377 ON FINISHED TUBE, ADD 0.030" FOR SOLDER TO LENGTHS AFFECTED 2 PINS .125"± .003" 2 PINS .156" ± .003" ir- .437" .468" K-6966474 12-18-50 K -69087-97A116 .640" GENERAL ELECTRIC Supersedes ETI-2018 dated 12-50 and ETX-209A dated 3-51 12-30-46 ET -T1502 PAGE 2 10-58 SUPER -JUMBO 4 -PIN WITH BAYONET EIA No. A4-18 (4310) BASES JUMBO 4 -PIN WITH BAYONET EIA No. A4-29 .260" MAX._ j 082" MAX. DI A. 1.646" 3.020" ON FINISHED TUBE ADD SOLDER TO .575 MIN LENGTHS AFFECTED 1.165.±.020" 4PINS .187" ±00s" DIA. K-4955974 4 -PIN EIA No. A4-75 2.625"Vr 3.219" 3.064° 9-15-50 K-6966492 ON FINISHED TUBE ADD 0.060' FOR SOLDER TO LENGTHS AFFECTED 12-18-50 SMALL H -WAFER OCTAL, 6 -PIN EIA No. B6-108 I 2 71 "- I. 312 " F- .340MIN. .447 MAX. K-3846066 6-24-48 K -69087-97A189 10-9-58 MEDIUM -SHELL OCTAL, 7 -PIN HA No. B7-12 BASES SMALL -BUTTON DITETRAR, 8 -PIN EIA No. E8-11 ET -T1502 PAGE 3 10-58 1.637" .075"-.095" ON FINISHED TUBE, ADD 0.030" FOR SOLDER ALL PINS .093"=.003" 450 .368"MIN. 1 .503"MAX. 8 PINS .050"i.00042" DA. -.0 .600' MAX INDEX LOCATION ( SHORT PIN) INDEX LOCATION ( SHORT PIN) PIN CONTOUR .050"DIA.PIN MIN. 5° H.0 4 0 " M A X FLAT. NOT TO BE BROUGHT TO A SHARP POINT. FOR PIN ALIGNMENT USE GAUGE NO. G E8 -2 K -69087-97A126 12-30-46 K -69087-97A187 10-8-58 SMALL -SHELL DI HEPTAL, 14 -PIN EIA No. B14-45 1.087" .050" MIN. .070"MAX. .0931-.00301A. 14 PINS -F. .515 MAX. .340"MI N. 1.9 85"- 2.031" K -69087-97A188 10-8-58 ET-TI502 PAGE 4 10-58 SMALL CAP EIA No. C1-1 .360" L .005 " 1 .406" .420nt.02dt CAPS K -69087-97A129 LARGE CAP EIA No. C1-8 .800" ±.007" DIA. 10-9-58 K-6966486 MEDIUM CAP EIA No. C1-5 .500 .576"DIA. 14- 12-18-50 SKIRTED LARGE CAP EIA No. C1-9 K-9186042 12-18-50 K-6966485 10-9-58 SKIRTED LARGE CAP EIA No. C1-10 (1904) CAPS LARGE CAP EIA No. C1-15 (3917) ET -T11502 PAGE 5 10-58 -2.230" D I A. ON FINISHED TUBE ADD 0.060" FOR SOLDER TO LENGTHS AFFECTED K-6966488 EIA No. C1-30 (1902) 10-9-58 K-4955973 EIA No. C1-35 (3912) 9-15-50 .713"MIN. K-9033522 10-9-58 K-4373344 10-9-58 ET -T1502 PAGE 6 10-58 TERMINAL -SUPPORT SHELL EIA No. FO -2 (3911) TERMINAL -SUPPORT SHELL EIA No. FO -3 (3908) 1.812" 1.50611,;" 250 4.125" =MIIV" lota [0.] I 250"MAX.1 ,Olt. BASE SHELL IS ONNEOTE0 TO ONE FILAMENT LEAD WITHIN BASE BOTH BUSHINGS INSULATED FROM SHELL BAND -^1 NSULATED FROM SHELL 313".r.031" DIA. H625",.010" DIA. 500" 21252 I 2e MEI 2006+ Tg: K-9033549 9-26-50 K-6966483 12-18-50 TERMINAL -SUPPORT SHELL EIA No. FO -6 (6628) +-.00"94" 6- 3/8" STUDS 31; 2.03_5" 63 3" 2.063" DIA. 1.500"1...035 3345'1.035" DIA. 1.500" t °35*B. 2501.035" 2.0625" .1875" MAXIMUM SPACE FOR CONNECTOR BETWEEN WING NUT AND LOCK NUT IS 0.188" N-15047TA 12-18-50 ELECTRONIC COMPONENTS DIVISION GENERAL (g) ELECTRIC Schenectady 5, N. Y. V' SPECIFICATIONS ETI-202 PAGE 1 4-45 ELECTRONIC TUBES FOR INDUSTRY INTRODUCTION TO SPECIFICATIONS Specifications in this section are a form of electronic tube data, the significance of which has not been fully appreciated by those who design tube equipment. They are equally as important as the Description and Rating Sheets when tube applications are being considered since their purpose is to serve as a guide to the interpretation of the ratings given on that sheet. If equipment in which an electronic tube is to be used is to be designed correctly, it is essential that the Specifications be used. The Specification is a detailed exposition of how the tube will operate under given sets of con- ditions. There are two main sections, one covering Mechanical Requirements, the other Electrical Requirements. The former refers to the Outline Drawing where all essential dimensions, bases, caps, and basing connections are shown. The second section "Electrical Requirements" is the more detailed. This portion lists all electrical tests with their conditions and maximum and minimum limits. The electrical tests cover all relevant tube characteristics. A study of these conditions and the limits given will provide the tube application engineer with a clear understanding of what can be expected in normal operation. The Specifications are particularly important when one considers that the Description and Rating Sheet is designed to assist in preliminary selection of a tube whereas the Specifications are then to be used for determining proper design of the equipment in which the tube is to be used. The Description and Rating Sheet will enable the designer to estimate quickly the power output capabilities and power supply requirements of a particular tube whereas the Specifications will serve to indicate what variation may be expected during the life of the tube or what deviation there may be between individual tubes. Equipment should not be designed from the Description and Rating Sheet which gives only the maximum ratings and, in some cases, typical opera- ting conditions. Use of the Specifications as a guide to equipment design assures the user that any tube of a given type will operate within its ratings, and thus is a prerequisite to satisfactory performance of the apparatus. The following list of IRE letter symbols is included for your convenience. These symbols will appear throughout the specification data sheets. IRE SYMBOLS ec Instantaneous total grid voltage Eg Effective or maximum value of varying eb Instantaneous total plate voltage component of grid voltage ic Instantaneous total grid current Ep Effective or maximum value of varying ib Instantaneous total plate current component of plate voltage Ec Average or quiescent value of grid voltage /g Effective or maximum value of varying Eb Average or quiescent value of plate voltage component of grid current IC Average or quiescent value of grid current /p Effective or maximum value of varying Ib Average or quiescent value of plate current component of plate current eg Instantaneous value of varying component Er of grid voltage If Filament or heater terminal voltage Filament or heater current ep Instantaneous value of varying component Is Total electron emission of plate voltage gi Conductance of electrode j Zg Instantaneous value of varying component r, Resistance of electrode j of grid current gp Plate conductance Zp Instantaneous value of varying component rp Plate resistance of plate current gg Grid conductance GENERAL ELECTRIC ETI-202 PAGE 2 4-45 rg gn, gn god Cgp Cgk Cpk Cgh Cph IRE SYMBOLS (Continued) Grid resistance Transconductance from electrode k to electrode j (-gpg) Grid -plate transconductance (mu- tual conductance) (=_-gpg) Plate -grid transconductance (in- verse mutual conductance) /.4 factor, electrodes j and k with respect to the current of electrode 1 Amplification factor Grid -plate capacitance Grid -cathode capacitance Plate -cathode capacitance Grid -heater capacitance Plate -heater capacitance Cg Cp Ck EitIV Efwd eifwd ec@eb ic@eb th nig td tk Po Pi Pp Grid capacitance Plate capacitance Cathode capacitance Peak (or crest) inverse voltage Peak (or crest) forward voltage Instantaneous tube voltage drop Critical grid voltage Critical grid current Tube heating time Temperature of mercury condensate Deionization time Cathode heating time Power output Power input Anode dissipation Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 445 (750) Filing No. 885U ETI-203A PAGE 1 SPECIFICATIONS IGNITRON FG-258-A SPECIFICATIONS 12-45 GENERAL Equipment using this type should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-111. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS Test Ignitor Resistance Peak Voltage Drop A -c Welder Control Operation -Intermittent High Potential See Note I, Amp Min - 1 2 100 3 Test Conditions Conduc- RMS tion Averag- Demand II, Time ing Current Amp per Spot Time Amp- Min Seconds Seconds Min Mini- Max mum -- -- -- - 2600 250 1 4.89 Duration of Test Eo Volts - -- 20 min. Minimum - - - - - 4 10 sec 12000 Test Limits Min Max Units -5 110 Ohms 16 Volts -- 20 Arc Backs 200 Ignitor Voltage for Ignition 30 Ignitor Current for Ignition - - - 100 Ignitor Ignition time NOTES 1. With no other voltage applied, the ignitor to -cathode resistance shall be measured with the tube mounted vertically and shall be within the limits specified. For this test the tube temperature shall be between 15 and 35 C. 2. With the tube operating in a 60 -cycle, half wave rectifier adjusted to give the specified peak anode current and no greater than average anode current, the peak voltage drop exclusive of starting voltage measured from anode to cathode shall not exceed the limit specified. This voltage may be 12-45 (2M) Filing No. 8850 114;r4Ai<14101<gt Supersedes ETI-203 dated 4-45 GENERAL *ELECTRIC A'61."%1M506 En -203A PAGE 2 12-45 observed by use of a cathode-ray oscilloscope connected directly, or through an amplifier to the tube under test. For this test the water temperature shall be less than 15 C. Rated water flow shall be used. 3. The tube shall be connected "back to back" with a previously tested good tube to control alternating current to an inductive load with a power factor lower than 30 per cent. The tube under test shall be in the trailing position. The ignitor of each tube shall be connected to a suitable firing control circuit in such a manner that current will flow through the ignitor in the forward direction only. The supply voltage shall be 575 plus or minus 25 volts rms, 60 cycles. With no phase retard the minimum rms demand current, conduction time per spot, and minimum average anode current shall be as specified. After the initial spot and for the next four spots, the ignitor voltage for ignition shall not exceed 200 volts. During this and subsequent operation, the ignitor shall maintain control and the time required to initiate the arc shall not exceed 100 microseconds. During the last three minutes of tube operation, the ignitor firing shall be retarded in phase so that the rms demand current is 75 plus or minus 5 per cent of the previous value. During this period, the number of arc backs shall not exceed the specified maximum. At the end of this period, the ignitor current for ignition shall not exceed 30 amperes when flowing for a time not exceeding 100 micro- seconds. For this test rated water cooling shall be used at rated flow. 4. With the tube mounted in a vertical position, the specified voltage shall be applied for the speci- fied time. During the last half of this test, there shall be no indication of current flow through the tube. Momentary flashes shall not be considered as an indication of current flow. This test shall be given at least 15 hours after operation for those tubes which have been oper- ated. For this test the tube temperature shall be between 15 and 35 C. Electronics Department GENERAL ELECTRIC Schenectady, N. Y. ETI-235 PAGE 1 SPECIFICATIONS IGNITRON FG-271 SPECIFICATIONS 12.45 GENERAL Equipment using this type should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ET I-113. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS Test Conditions Test Limits Test MinMin Conduc- RMS tion Averag- See Note I' Amp Min Demand Current Amp- Ib Time Amp per Spot Min Seconds ing Time Seconds Duration of Test E Volts Max Min Mini- Max Units mum Ignitor Resistance 1 Peak Voltage Drop 2 100 - - - -- -5 110 Ohms 16 Volts A -c Welder Control Operation-Inter- mittent 3 - 635 40 1 - - - 7.82 10 min Minimum 2 Arc Backs 200 Ignitor Voltage for Ignition 30 Ignitor Current for Ignition High Potential 4-- - - - 10 sec 12000 100 Ignitor Ignition Time NOTES 1. With no other voltage applied, the ignitor to -cathode resistance shall be measured with the tube mounted vertically and shall be within the limits specified. For this test the tube temperature shall be between 15 and 35 C. 2. With the tube operating in a 60 -cycle, half - wave rectifier adjusted to give the specified peak anode current and no greater than average anode current, the peak voltage drop exclusive of starting voltage measured from anode to cathode shall not exceed the limit specified. This voltage may be observed by use of a cathode-ray oscilloscope connected directly, or through an amplifier to the tube under test. 12 -45 (2M) Filing No. 8850 GENERAL ELECTRIC ETI-235 PAGE 2 12-45 For this test the water temperature shall be less than 15 C. Rated water flow shall be used. 3. The tube shall be connected "back to back" with a previously tested good tube to control alternating current to an inductive load with a power factor lower than 30 per cent. The tube under test shall be in the trailing position. The ignitor of each tube shall be connected to a suitable firing control circuit in such a manner that current will flow through the ignitor in the forward direction only. The supply voltage shall be 575 plus or minus 25 volts rms, 60 cycles. With no phase retard the minimum rms demand current, conduction time per spot, and minimum average anode current shall be as specified. After the initial spot and for the next four spots, the ignitor voltage for ignition shall not exceed 200 volts. During this and subsequent operation, the ignitor shall maintain control and the time required to initiate the arc shall not exceed 100 microseconds. During the last three minutes of tube operation, the ignitor firing shall be retarded in phase so that the rms demand current is 75 plus or minus 5 per cent of the previous value. During this period, the number of arc backs shall not exceed the specified maximum. At the end of this period, the ignitor current for ignition shall not exceed 30 amperes when flowing for a time not exceeding 100 micro- seconds. For this test rated water cooling shall be used at rated flow. 4. With the tube mounted in a vertical position, the specified voltage shall be applied for the specified time. During the last half of this test, there shall be no indication of current flow through the tube. Momentary flashes shall not be con- sidered as an indication of current flow. This test shall be given at least 15 hours after operation for those tubes which have been operated. For this test the tube temperature shall be between 15 and 35 C. Electronics Department GENERAL ) ELECTRIC Schenectady, N. Y. ETI-236A PAGE 1 SPECIFICATIONS IGNITRON GL -5552 FG-235-A SPECIFICATIONS 10-45 GENERAL Equipment using this type should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ET I-109. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS Test Conditions Test Limits Conduc- RMS tion Averag- Test See Note IP Amp Min Demand Current Amp- II, Time Amp per Spot Min Seconds ing Time Seconds Duration of Test E VolPts Min Max Units Min Mini- Max mum Ignitor Resistance 1 - Peak Voltage Drop 2 100 -- -- -- A -c Welder Control Operation-Inter- mittent 3 - 1265 100 1 High Potential 4-- -- - -- -5 110 Ohms 16 Volts - - - 6.19 15 min Minimum 5 Arc Backs 200 Ignitor Voltage for Ignition 30 Ignitor Current for Ignition - - - 10 sec 12000 100 Ignitor Ignition time NOTES 1. With no other voltage applied, the ignitor to -cathode resistance shall be measured with the tube mounted vertically and shall be within the limits specified. For this test the tube temperature shall be between 15 and 35 C. 2. With the tube operating in a 60 -cycle, half - wave rectifier adjusted to give the specified peak anode current and no greater than average anode current, the peak voltage drop exclusive of starting voltage measured from anode to cathode shall not exceed the limit specified. This voltage may be observed by use of a cathode-ray oscilloscope connected directly, or through an amplifier to the tube under test. Supersedes ETI-236A dated 12-45 GENERAL ELECTRIC ETI-236A PAGE 2 10-49 For this test the water temperature shall be less than 15 C. Rated water flow shall be used. 3. The tube shall be connected "back to back" with a previously tested good tube to control alternating current to an inductive load with a power factor lower than 30 per cent. The tube under test shall be in the trailing position. The ignitor of each tube shall be connected to a suitable firing control circuit in such a manner that current will flow through the ignitor in the forward direction only. The supply voltage shall be 575 plus or minus 25 volts rms, 60 cycles. With no phase retard the minimum rms demand current, conduction time per spot, and minimum average anode current shall be as specified. After the initial spot and for the next four spots, the ignitor voltage for ignition shall not exceed 200 volts. During this and subsequent operation, the ignitor shall maintain control and the time required to initiate the arc shall not exceed 100 microseconds. During the last three minutes of tube operation, the ignitor firing shall be retarded in phase so that the rms demand current is 75 plus or minus 5 per cent of the previous value. During this period, the number of arc backs shall not exceed the specified maximum. At the end of this period, the ignitor current for ignition shall not exceed 30 amperes when flowing for a time not exceeding 100 micro- seconds. For this test rated water cooling shall be used at rated flow. 4. With the tube mounted in a vertical position, the specified voltage shall be applied for the specified time. During the last half of this test, there shall be no indication of current flow through the tube. Momentary flashes shall not be considered as an indication of current flow. This test shall be given at least 15 hours after operation for those tubes which have been operated. For this test the tube temperature shall be between 15 and 35 C. Tube Divisions, Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 10-49 (3M) Filing No. 8850 ETI-237 PAGE 1 SPECIFICATIONS IGNITRON GL -41 5 SPECIFICATIONS 12-45 GENERAL Equipment using this type should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-114. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS Test Conditions Test Limits Conduc- RMS tion Averag- Test See Note IP Amminp Demand Ib Time CAumrrpe_nt Amp Min per Spot Seconds ing Time Seconds Duration of Test E, Volts Min Max Units Min Mini- Max mum Ignitor Resistance 1 Peak Voltage Drop 2 100 - 110 Ohms 16 Volts A -c Welder Control - Operation-Inter- mittent 3 317 16 0.5 9.56 - 10 min - Minimum 2 Arc Backs 200 Ignitor Voltage for Ignition 30 Ignitor Current for Ignition 100 Ignitor Ignition High Potential 4 - - time 10 sec 12000 NOTES 1. With no other voltage applied, the ignitor to -cathode resistance shall be measured with the tube mounted vertically and shall be within the limits specified. For this test the tube temperature shall be between 15 and 35 C. 2. With the tube operating in a 60 -cycle, half - wave rectifier adjusted to give the specified peak anode current and no greater than average anode current, the peak voltage drop exclusive of starting voltage measured from anode to cathode shall not exceed the limit specified. This voltage may be observed by use of a cathode-ray oscilloscope connected directly, or through an amplifier to the tube under test. 12 -45 (2M) Filing No. 8850 GENERAL ELECTRIC ETI-237 PAGE 2 12-45 For this test the water temperature shall be less than 15 C. Rated water flow shall be used. 3. The tube shall be connected "back to back" with a previously tested good tube to control alternating current to an inductive load with a power factor lower than 30 per cent. The tube under test shall be in the trailing position. The ignitor of each tube shall be connected to a suitable firing control circuit in such a manner that current will flow through the ignitor in the forward direction only. The supply voltage shall be 575 plus or minus 25 volts rms, 60 cycles. With no phase retard the minimum rms demand current, conduction time per spot, and minimum average anode current shall be as specified. After the initial spot and for the next four spots, the ignitor voltage for ignition shall not exceed 200 volts. During this and subsequent operation, the ignitor shall maintain control and the time required to initiate the arc shall not exceed 100 microseconds. During the last three minutes of tube operation, the ignitor firing shall be retarded in phase so that the rms demand current is 75 plus or minus 5 per cent of the previous value. During this period, the number of arc backs shall not exceed the specified maximum. At the end of this period, the ignitor current for ignition shall not exceed 30 amperes when flowing for a time not exceeding 100 microseconds. For this test rated water cooling shall be used at rated flow. 4. With the tube mounted in a vertical position, the specified voltage shall be applied for the specified time. During the last half of this test, there shall be no indication of current flow through the tube. Momentary flashes shall not be considered as an indication of current flow. This test shall be given at least 15 hours after operation for those tubes which have been operated. For this test the tube temperature shall be between 15 and 35 C. Electronics Department GENERAL ELECTRIC Schenectady, N. Y. SPECIFICATIONS ETI-205 PAGE 1 SPECIFICATIONS KENOTRONS KC -4, FP -85-A GL -41 1 4-45 GENERAL Equipment using any of these types should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be de- signed to have the average characteristics and maximum ratings given on the Description and Rating sheets, ETI-141, 142, and 144. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS Test methods according to IRE Standards TEST TYPE OF TUBE Operation * Emission Filament Current KC -4 FP -85-A GL -411 KC -4 FP -85-A GL -411 KC -4 FP -85-A GL -411 Er Volts 20 10 10 17 8 9 20 10 10 TEST CONDITIONS IRE Symbols Eb Ib Ma 150 kv peak inverse 20 kv peak inverse 100 kv peak inverse 3000 volts d -c 200 volts rms, a -c 3000 volts d -c --- 150 25 80 Read Read Read --- Time Minutes 5 5 5 -t --- TEST LIMITS Min. Max. Unit --- -- 200 5 -- Ma Ma 80 Ma 23 26 Amp 4 5.3 Amp 13 16 Amp *For the operation test the tubes are operated in pairs under the conditions given above in a single-phase, full wave, 60 -cycle circuit. Capacitance of approximately 0.0025 mfd connected across load, and each tube protected by sphere gap adjusted to 30 kv peak. If either electrode vibrates excessively reject tube. t Operate until plate current stabilizes (about 30 sec). 4-45 (750) Filing No. 8850 GENERAL 0 ELECTRIC SPECIFICATIONS ETI-206 PAGE 1 SPECIFICATIONS KENOTRON GL -8020 4.45 GENERAL Equipment using this type should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-145. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS Test methods according to IRE Standards TEST CONDITIONS IRE Symbols Limits Test See Ef Note Volts Eb Volts Ib Time Amperes Minutes Min Max Units Operation Emission Plate current Filament current End of life 1 5 40,000 Peak Inverse 0.100 5 3 5 500 d -c 200 d -c read read IA 30 75 - Ma Ma 5 5.5 6.5 Amp 2 3 500 d -c read 15 Ma NOTES 1. Half -wave rectifier circuit without filter. 2. Life test conditions per Operation Test. 4.45 (750) Filing No. 8850 GENERAL ELECTRIC En -234A PAGE 1 SPECIFICATIONS THYRATRON GL -502-A SPECIFICATIONS 3-47 GENERAL Equipment using this type should be so designed that any tube within the limits specified will operate satisfactorily. The tubes shall be designed to have the average characteristic and maximum ratings given on the Description and Rating Sheet, ETI-134. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS For the electrical tests, the cathode must reach steady state operating temperature before any other potential is applied. Except where otherwise specified, rated heater voltage will be applied, and the shield grid shall be connected to the cathode. TEST CONDITIONS TEST LIMITS Test See Note Efwd E,, I,,E, Min Max Units Heater Current Tube Voltage Drop Characteristic Operation 1 2 125 d -c 0.3A d -c 3 A Read 0 B 650 a -c Read 4 650 a -c 1300 0.1A d -c 0.54 0.66 Ampere 14 Volts -5.0 60 -1.5 -Volts Volts NOTES 1. With no other voltage applied to the tube, the heater current shall not exceed the limits specified. 2. An anode voltage of 125 volts d -c shall be applied, with sufficient series resistance to limit the average anode current to the specified value. The control grid shall be connected to the anode through a resistance of 1000 to 10,000 ohms. The tube drop is measured from the anode to the cathode by calibrated cathode-ray oscilloscope or other suitable means, and shall not exceed the limit specified. 3. An anode resistor shall be used to limit the anode current to within rated average value. A resistor not exceeding 0.1 megohm shall be in series with the control grid. A. With the control grid voltage zero, the d -c anode voltage necessary to start a discharge shall not be greater than the limit specified. B. With the specified anode voltage applied and a sufficiently negative d -c grid voltage applied to prevent conduction, the control grid supply voltage shall gradually be made more positive until conduction occurs to the anode. The grid supply voltage at which conduction occurs shall be within the limits specified. 4. Two tubes shall be operated in a rectifier circuit with a resistance load without a filter. Supersedes ETI-234 dated 12-45 3-47 (3M) Filing No. 8850 GENERAL ELECTRIC ETI-234A PAGE 2 3-47 The control grid shall be supplied with an a -c voltage of not more than 120 volts, through a resistance of 0.1 megohm. The tubes shall be operated for five minutes under the conditions specified without arc back. At the end of the period, the current of each tube shall be reduced from the rated current to zero by varying only the phase of the applied grid voltage from zero to 180 electrical degrees lagging with respect to the anode voltage. Electronics Department GENERAL ELECTRIC Schenectady, N. Y. SPECIFICATIONS EV-207 PAGE 1 SPECIFICATIONS PHANOTRONS FG-32, FG-104 FG-280 4-45 GENERAL Equipment using these types should be so designed that any tube within the limits specified will operate satisfactorily. The tubes shall be designed to have the average characteristics and maximum ratings given in the Description and Rating Sheets, ETI-147, 148 and 151. MECHANICAL REQUIREMENTS The tubes shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS For the electrical tests, the filament or cathode carries anode current for periods of not more than must reach steady state operating temperature one -tenth second and preferably for only one-half before any other potential is applied. The anode cycle. These periods shall be spaced at a maximum and grid returns shall be made to the midtap of rate of one pulse per second. the filament transformer for filamentary tubes, or In testing mercury tubes, the condensed -mercury to the cathode connection for indirectly heated temperature shall be held at 40 t 2 C. cathodes. The filament or heater voltage shall be The peak voltage drop, exclusive of the starting in phase with the anode voltage and the cathode voltage, is measured from the anode to the anode end of the heater shall be negative when the anode return by a calibrated cathode-ray oscilloscope or is positive. other suitable means, and shall not exceed the Except where otherwise specified, rated filament limit specified. or heater voltage shall be applied. See Page 3 for detailed values and limits referred 3. Operation Test to in the following description of tests. Two tubes shall be operated in a bi-phase full wave (4 -anode) rectifier circuit with a resistance 1. Filament or Heater Current Test With no other voltage applied to the tube, the filament or heater current shall not exceed the limits specified. 2. Peak Voltage Drop Test (Emission) load and without a filter in the load circuit. The over-all regulation of the anode supply voltage shall be less than 10 per cent. For this test, the ambient temperature shall be held between 20 and 40 C. After the mercury (when mercury tubes are tested) has been properly distributed, the tubes An anode voltage of 110 volts a -c at 60 cycles shall be operated for five minutes with specified shall be applied, with sufficient series resistance to peak inverse voltage, and rated average current limit the peak anode current to the rated value. per tube without arcback or apparent sputtering A circuit shall be employed such that the tube of the cathode. 4-45 (750) Filing No. 8850 GENERAL ELECTRIC ETI-207 PAGE 2 4-45 Type of Tube FG-32 FG-104 FG-280§ TEST-Phanotrons 1. Filament Current 1 5 Amperes- Min Max 2. Peak Voltage Drop Max 4.3 4.9 20 9.25 10.75 20 9.25 10.75 20 3. Operation Env 1000 3000 2000 §Before any tests are made, the filament must be operated for 15 minutes in the case of the FG-280 to condense properly the mercury in the radiator. Electronics Department GENERAL ELECTRIC Schenectady, N. Y. ETI-208 PAGE 1 SPECIFICATIONS PHANOTRON FG-190 SPECIFICATIONS 4-45 GENERAL Equipment using this tube should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-150. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL R EQUIREMENTS For the electrical tests, the filament must reach other potential is applied. The anode return shall steady state operating temperature before any be made to the midtap of the filament transformer. TEST CONDITIONS TEST LIMITS Test See Note E f E lm/ ip ib (Peak) (Average) Min Max Units Filament current Emission Operation 1 2 2.5 2.5 2.5 190 5.0 - 1.25 -11.0 13.0 Amperes 12 Volts 1. Peak Voltage Drop Test (Emission) An anode voltage of 110 volts a -c at 60 cycles shall be applied, with sufficient series resistance to limit the peak anode current per anode to the specified value. A circuit shall be employed such that one anode carries current for periods of not more than one -tenth second and preferably for only one-half cycle. These periods shall be spaced at a maximum rate of one pulse per second. The peak voltage drop, exclusive of the starting voltage, is measured from each anode to the center tap of the filament transformer by a calibrated cathode-ray oscilloscope or other suitable means, and shall not exceed the value specified. 2. Operation Test The tube shall be operated in a rectifier circuit with a resistance load and without a filter in the load circuit. The over-all regulation of the anode supply voltage shall be less than 15 per cent. The tube shall be operated for five minutes at the peak inverse voltage specified and with the average current specified per anode without arcback or apparent sputtering of the cathode. For this test, the ambient temperature shall be between +20 and +40 C. 4-45 (750) Filing No. 8850 GENERAL CD ELECTRIC ETI-209 PAGE 1 SPECIFICATIONS PHANOTRON GL -857-B SPECIFICATIONS 4-45 GENERAL Equipment using these types should be so designed that any tube within the limits specified will operate satisfactorily. The tubes shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-152. MECHANICAL REQUIREMENTS The tubes shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL R EQUIREMENTS For the electrical tests, the cathode must reach The filament voltage shall be in phase with the steady state operating temperature before any anode voltage and the filament shield shall be other potential is applied. The anode return shall negative when the anode is positive. be made to the midtap of the filament transformer. TEST CONDITIONS TEST See Note Filament Ef Heating Time E10 (Min) ir, Filament current 1 5.0 Peak voltage drop 2 5.0 (emission) Operation 3 5.0 1 30 - 40 - 22000 TEST LIMITS Ib Temp C Min Max Units - -27 30-40 10 30-40 33 Amp 20 -Volts 1. With filament voltage specified and no other voltage applied to the tube, the filament or heater current shall not exceed the limits indicated. 2. An anode voltage of 110 volts a -c at 60 cycles shall be applied, with sufficient series resistance to limit the peak anode current to the specified value. A circuit shall be employed such that the tube carries anode current for periods of not more than one -tenth second and preferably for only one-half cycle. These periods shall be spaced at a maximum rate of one pulse per second. The peak voltage drop, exclusive of the starting voltage, is measured from the anode to the anode return by a calibrated cathode-ray oscilloscope or other suitable means, and shall not exceed the limit specified. The condensed -mercury shall be within the limits specified. 3. The tubes shall be operated in a 60 -cycle rec- tifier circuit with a resistance load and without a filter in the load circuit. The over-all regulation of the anode supply voltage shall be less than 10 per cent. After the mercury has been properly distributed, half the peak inverse voltage specified shall be applied and increased within one minute to the full value. The tubes shall then be operated with the specified average current per tube for five minutes without arcback or apparent sputtering of the cathode. The ambient temperature shall be within the limit specified. Artificial cooling may be used. 4-45 (750) Filing No. 8850 GENERAL ELECTRIC S SPECIFICATIONS ETI-211 PAGE 1 SPECIFICATIONS PH ANOTRON GL -869-B 4-45 GENERAL Equipment using these types should be so designed that any tube within the limits specified will operate satisfactorily. The tubes shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-154. MECHANICAL REQUIREMENTS The tubes shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL R EQUIREMENTS For the electrical tests, the cathode must reach The filament voltage shall be in phase with the steady state operating temperature before any anode voltage and the filament shield shall be other potential is applied. The anode return shall negative when the anode is positive. be made to the midtap of the filament transformer. TEST CONDITIONS TEST See Note Filament current 1 Peak voltage drop 2 Ef 5.0 5.0 Filament Heating Time -(Min) 1 Epp, - ip 15 (emission) Operation 3 5.0 30 20000 TEST LIMITS Ip Temp C Min Max Units - 17 30-40 2.5 30-40 21 Amp 20 Volts 1. With filament voltage specified and no other voltage applied to the tube, the filament or heater current shall not exceed the limits indicated. 2. An anode voltage of 110 volts a -c at 60 cycle shall be applied, with sufficient series resistance to limit the peak anode current to the specified value. A circuit shall be employed such that the tube carries anode current for periods of not more than one -tenth second and preferably for only one-half cycle. These periods shall be spaced at a maximum rate of one pulse per second. The peak voltage drop, exclusive of the starting voltage, is measured from the anode to the anode return by a calibrated cathode-ray oscilloscope or other suitable means, and shall not exceed the limit specified. The condensed -mercury temperature shall be within the limits specified. 3. The tubes shall be operated in a 60 -cycle rectifier circuit with a resistance load and without a filter in the load circuit. The over-all regulation of the anode supply voltage shall be less than 10 per cent. After the mercury has been properly distributed, half the peak inverse voltage specified shall be applied and increased within one minute to the full value. The tubes shall then be operated with the specified average current per tube for five minutes without arcback or apparent sputtering of the cathode. The ambient temperature shall be within the limits specified. Artificial cooling may be used. 4-45 (750) Filing No. 8850 GENERAL ELECTRIC SPECIFICATIONS ETI-212 PAGE 1 SPECIFICATIONS PHANOTRON GL -872-A 872 4-45 GENERAL Equipment using these types should be so designed that any tube within the limits specified will operate satisfactorily. The tubes shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-155. MECHANICAL REQUIREMENTS The tubes shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS For the electrical tests, the cathode must reach steady state operating temperature before any The filament voltage shall be in phase with the anode voltage and the filament shield shall be other potential is applied. The anode return shall negative when the anode is positive. be made to the midtap of the filament transformer. TEST CONDITIONS TEST LIMITS TEST See Note Filament Er Heating Time Epp, ip (Min) Ib Temp C Min Max Units Filament current 1 5.0 Peak voltage drop 2 5.0 (emission) Operation 3 5.0 1 30 - - 5.0 10000 1.25 6.25 30-45 20-60 8.0 Amp 20 Volts - 1. With filament voltage specified and no other voltage applied to the tube, the filament or heater current shall not exceed the limits indicated. 2. An anode voltage of 110 volts a -c at 60 cycles shall be applied, with sufficient series resistance to limit the peak anode current to the specified value. A circuit shall be employed such that the tube carries anode current for periods of not more than one -tenth second and preferably for only one- half cycle. These periods shall be spaced at a maximum rate of one pulse per second. The peak voltage drop, exclusive of the starting voltage, is measured from the anode to the anode return by a calibrated cathode-ray oscilloscope or other suitable means, and shall not exceed the limit specified. The condensed -mercury tempera- ture shall be within the limits specified. 3. The tubes shall be operated in a 60 -cycle rec- tifier circuit with a resistance load and without a fil- ter in the load circuit. The over-all regulation of the anode supply voltage shall be less than 10 per cent. After the mercury has been properly distributed, the tubes shall be operated for five minutes with specified peak inverse voltage, and average current per tube without arcback or apparent sputtering of the cathode. The ambient temperature shall be within the limits specified. Artificial cooling may be used. 4-45 (750) Filing No. 8850 GENERAL 0 ELECTRIC ETI-238 PAGE 1 SPECIFICATIONS PHANOTRON GL -8008 SPECIFICATIONS 12-45 GENERAL Equipment using these types should be so designed that any tube within the limits specified will operate satisfactorily. The tubes shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-256. MECHANICAL REQUIREMENTS The tubes shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS For the electrical tests, the cathode must reach steady state operating temperature before any other potential is applied. The anode return shall be made to the midtap of the filament transformer. The filament voltage shall be in phase with the anode voltage and the filament shield shall be negative when the anode is positive. TEST TEST CONDITIONS See Note Filament E1 Heating Time Eiv (Min) i TEST LIMITS Ib Temp C Min Max Units Filament current 1 5.0 Peak voltage drop 2 5.0 (emission) Operation 3 5.0 6.25 8.0 Amp 1 5.0 30-45 20 Volts 30 10000 1.25 20-60 NOTES 1. With filament voltage specified and no other voltage applied to the tube, the filament or heater current shall not exceed the limits indicated. 2. An anode voltage of 110 volts a -c at 60 cycles shall be applied, with sufficient series resistance to limit the peak anode current to the specified value. A circuit shall be employed such that the tube carries anode current for periods of not more than one -tenth second and preferably for only one-half cycle. These periods shall be spaced at a maximum rate of one pulse per second. The peak voltage drop, exclusive of the starting voltage, is measured from the anode to the anode return by a calibrated cathode-ray oscilloscope or other suitable means, and shall not exceed the limit specified. The condensed -mercury temperature shall be within the limits specified. 3. The tubes shall be operated in a 60 -cycle rectifier circuit with a resistance load and without a filter in the load circuit. The over-all regulation of the anode supply voltage shall be less than 10 per cent. After the mercury has been properly distributed, the tubes shall be operated for five minutes with specified peak inverse voltage, and average current per tube without arcback or apparent sputtering of the cathode. The condensed -mercury temperature shall be within the limits specified. Artificial cooling may be used. 12-45 (2M) Filing No. 8850 GENERAL ELECTRIC FTI-242 PAGE SPECIFICAU ONS PHANOTRON GL -673 SPECIFICATIONS 12-45 GENERAL Equipment using these types should be so designed that any tube within the limits specified will operate satisfactorily. The tubes shall have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-243. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS For the electrical tests, the cathode must reach steady state operating temperature before any other potential is applied. The anode return shall be made to the midtap of the filament transformer. The filament voltage shall be in phase with the anode voltage and the filament shield shall be negative when the anode is positive. Test See Note TEST CONDITIONS Filament Heating Time I,, (Min) TEST LIMITS IL, Temp C Min Max Units Filament Current 1 5.0 Peak Voltage Drop 2 5.0 (Emission) Operation 3 5.0 0.5 30 15000 -6.0 - 30-45 1.5 20-60 9.0 11.5 Amperes 20 Volts NOTES 1. With filament voltage specified and no other voltage applied to the tube, the filament or heater current shall not exceed the limits indi- cated. 2. An anode voltage of 110 volts a -c at 60 cycles shall be applied, with sufficient series resistance to limit the peak anode current to the specified value. A circuit shall be employed such that the tube carries anode current for periods of not more than one -tenth second and preferably for only one- half cycle. These periods shall be spaced at a maximum rate of one pulse per second. The peak voltage drop, exclusive of the starting voltage, is measured from the anode to the anode return by a calibrated cathode-ray oscilloscope or other suitable means, and shall not exceed the limit specified. The condensed -mercury temperature shall be within the limits specified. 3. The tubes shall be operated in a 60 -cycle rectifier circuit with a resistance load and without a filter in the load circuit. The over-all regulation of the anode supply voltage shall be less than 10 per cent. After the mercury has been properly distributed, half the peak inverse voltage specified shall be applied and increased within one minute to the full value. The tubes shall then be operated with the specified average current per tube for five minutes without arcback or apparent sputtering of the cathode. The condensed -mercury temperature shall be within the limits specified. Artificial cooling may be used. 12-45 (2M) Filing No. 8850 GENERAL ELECTRIC ETI-274 PAGE 1 SPECIFICATIONS PHANOTRON GL -575-A SPECIFICATIONS 1 1.46 GENERAL Equipment using this type should be so designed that any tube within the limits specified will operate satisfactorily. The tubes shall have the average characteristics and maximum ratings given in the Description and Rating sheet, ETI-244. MECHANICAL REQUIREMENTS The tubes shall have the dimensions and be within the tolerances shown on the outline drawing. ELECTRICAL REQUIREMENTS For the electrical tests, the cathode must reach The filament voltage shall be in phase with the steady state operating temperature before any anode voltage and the filament shield shall be other potential is applied. The anode return shall negative when the anode is positive. be made to the midtap of the filament transformer. Test Filament Current Peak Voltage Drop (Emission) 3peration See Note 1 2 3 TEST CONDITIONS TEST LIMITS Fil. El Heating Time (Min) ip Ib Temp C Min Max Units 5.0 5.0 5.0 0.5 30 15,000 -6 - 38-42 1.5 20-60 9.0 11.5 Amperes 20 Volts NOTES 1. With filament voltage specified and no other voltage applied to the tube, the filament current shall not exceed the limits indicated. 2. An anode voltage of 110 volts a -c at 60 cycles shall be applied, with sufficient series resistance to limit the peak anode current to the specified value. A circuit shall be employed such that the tube carries anode current for periods of not more than one -tenth second and preferably for only one-half cycle. These periods shall be spaced at a maximum rate of one pulse per second. The peak voltage drop, exclusive of the starting voltage, is measured from the anode to the anode return by a calibrated cathode-ray oscilloscope or other suitable means, and shall not exceed the limit specified. The condensed mercury tempera- ture shall be within the limits specified. 3. The tubes shall be operated in a 60 -cycle rectifier circuit with a resistance load and without a filter in the load circuit. The over-all regulation of the anode supply voltage shall be less than 10 per cent. After the mercury has been properly distributed, half the peak inverse voltage specified shall be applied and increased within one minute to the full value. The tubes shall then be operated with the specified average, current per tube for five minutes without arcback or apparent sputtering of the cathode. The condensed mercury temperature shall be within the limits specified. Artificial cooling may be used. GENERAL*ELECTRIC ETI-213A PAGE 1 SPECIFICATIONS PLIOTRON GL -5740 /FP -54 SPECIFICATIONS GENERAL 1 2 -4 8 Equipment using this type should be so designed Description and Rating Sheet, ETI-160A. that any tube within the limits specified will operate satisfactorily. MECHANICAL REQUIREMENTS The tube shall be designed to have the average The tube shall have the dimensions and be with- characteristics and maximum ratings given on the in the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS (Test Conditions-IRE Symbols) Limits Test Ef Eb Ect Ec2 Ib LI Min Max Units Plate Current Grid -plate Transconductance Grid Current Filament Current 2.5 2.5 2.5 2.5 6.0 6.0 6.0 4.0 -4.0 4.0 -4.0 --4.0 -4.0 Read -- Calculate 20 -15 75 -150 5x10-15 105 µA µmhos Amp Ma (Filament current test methods according to IRE Standards.) The GL -5740 /FP -54 is a low grid current tube requiring special technique and equipment for proper testing. Details of the testing equipment are shown on the circuit diagrams K-5344693 and K-8074613. All wiring, meters, controls, and batteries of this equipment should be mounted in a grounded, metallic test set to eliminate stray electromagnetic effects. The capacitance of the grid disconnecting switch must be negligible compared to the input capacitance of the GL -5740 /FP -54. The following outlines the procedure to be fol- lowed in conducting the specified tests. Thoroughly clean and dry the bulb before inserting the tube into the test set. 1. Plate Current With the amplifier input switch in short-circuit position and the grid switch closed, adjust electrode voltages to specified values and read plate current. 2. Grid -plate Transconductance With amplifier input switch in short-circuit position and grid switch closed read plate current with grid voltage at -3.8 and - 4.2 volts. Cal- culate the gridplate transconductance from the G. - ' formula, I 1- I 2micromhos. 4 3. Grid Current A. Adjust GL-5740/FP-54 circuit as -in test 1. B. Open amplifier input switch and turn on Vernier grid voltage supply SW3. Adjust amplifier bias and screen voltage to obtain 5.0 to 10 milliamperes amplifier plate current and an output current of approximately 70 to 80 microamperes. C. Adjust the GL-5740/FP-54 plate voltage to obtain the same plate current as on test 1. D. The stability of the amplifier, as determined by the rate of drift of the output current, is affected by the amplifier screen voltage. Therefore, the above settings must be varied to obtain a drift of less than 0.5 micro- amperes per minute. 12-48 (3M) Filing No. 8850 GENERAL ELECTRIC ETI-213A PAGE 2 12-48 The values of amplifier plate current and output current and the GL-5740/FP-54 plate current must be maintained as specified in B and C. This procedure may take several hours. E. Calibrate the amplifier by noting the output current before and after changing the GL5740/FP-54 grid voltage 10 millivolts. F. Ad just the grid voltage to a value at which the output current is approximately 15 microamperes greater than the highest value noted in E. R1-10,000 Ohms, 5 w R2-10,000 Ohms, 5 w R3-200 Ohms R4-200 Ohms, 5 w R5-200 Ohms R5-200 Ohms, 5 W R7-20,000 Ohms SEE K-5344693 R8-2,000 Ohms, 5 w SW3 R9-2,000 Ohms, 5 w SW3-DPDT Shorting Switch (Input) 1 µA2-0-20-200 Microam- meter D -c mA2-0-15 Panel Milliam- meter D -c SW4- DPST Switch G. Open the grid disconnecting switch and time to the nearest second the interval required for the output current to drift between the two points noted in E (dis- regard initial transients). H. Repeat G until three successive readings agree within 5 per cent. I. The grid current is calculated from the following formula: I. - 6 x 10-14amperes where t = time in seconds obtained from G. Z.3) AMPLIFIER PLATE CURRENT 6AC7 1111.111 90V. sw4 OUTPUT CURRENT Schematic Diagram of Connections for GL-5740/FP-54 Test Set K-8074613 2-13-42 6AC7 R,-400 Ohms R2-400 Ohms R3-400 Ohms R4-400 Ohms R5-100 Ohms R6-7 Ohms B1-2 V Storage Cell B2-6 V Storage Battery B3-8 V Storage Battery V1-0-7.5 Panel Voltmeter D -c V2-0-7.5 Panel Voltmeter D -c V3-0-7.5 Panel Voltmeter D -c V4-0-7.5 Panel Voltmeter D -c V5-0-200 Millivoltmeter D -c SW1-1400 L Switch, Yaxley 1 Stage, 5 Position Circuit Selector Switch SW2-Low Capacity Switch (Grid Disconnector) µA,-0-100 Microammeter D -c MA1-0-1 Panel Milliammeter D -c SW3-DPST Mercury Contact Switch SW4-TPST Mercury Contact Switch SWE FP -54 -3 rt R2 SW, SWt R NOTE: Five GL-5740/FP-54 positions with separate grid switches are selected by means of SW1 for measuring space charge grid current and plate current. (4ilfSW4 1B, Ba B3 Schematic Diagram of Connections for GL-5740/FP-54 Test Set K-5344693 7-16-45 Electronics Department GENERAL ELECTRIC Schenectady, N. Y. ETI-214 PAGE 1 SPECIFICATIONS PLIOTRON GL -207 SPECIFICATIONS 4-45 GENERAL Equipment using this type should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-162. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS Test methods according to IRE Standards Test See Note Capacitance (Cg -p) Capacitance (Cg -f) Capacitance (Cp-f) - Amplification factor 3 Operation 1 Emission Grid voltage 2 Plate voltage 2 Plate voltage 2 Reverse grid current 4 Filament current Ef Volts - 22 15 22 22 22 22 22 TEST CONDITIONS IRE Symbols Eb Ec, Ib LI Kv Volts Amp Amp -- 15 2 10 read read 2000 read -300 0 2.33 read total 0.02 0.75 0.75 -0.2 --- -- 10 adjust 0.75 read TEST LIMITS Time Min Max Units -- 5 min. Inst. Inst. Inst. -Inst. 5 min 24 30 15 21 1.5 18 22 -2.5 22 0.35 0.65 -450 -650 -9 11 3.5 4.5 -100 49 53 mPf µµf µµF kw amp volts kv kv µa amp Notes 1. Self-excited oscillator, grid leak approx 15,000 ohms 2. Grid voltage measured from filament trans - former centertap 3. Calculate from plate voltage readings 4. Read Ici, at end of 5 minutes operation 4 -45 (750) Filing No. 8850 ELECTRIC ETI-21 5 PAGE 1 SPECIFICATIONS PLIOTRON GL -851 SPECIFICATIONS 4-45 GENERAL Equipment using this type should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-168. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS Test methods according to IRE Standards TEST CONDITIONS IRE Symbols TEST LIMITS Test See Ef Eb Ec, Ib Note Volts Volts Volts Ma Ie, Ma Time Minutes Min Max Units Capacitance Cgp Cgk -- Cpk Amplification factor 5 Operation 1 Emission check 2 Grid characteristic Plate characteristic Plate characteristic -- Reverse grid current 3 Reverse grid current 4 Filament current -- 11 read 11 11 11 11 0 11 ----2500 ------ ---- -1000 2000 read 10 read -60 300 -- - read 0 2000 adjust --300 400 ------180 --read --5 -5 41 21 3.4 18.5 1600 -90 1700 -55-014.7 53 30 5.6 22.5 9.8 -125 2060 750 -550 -50 16.3 PAr -Allf mg watts volts volts volts volts ma ga amp Notes 1. Self-excited oscillator, frequency below 3 mc, grid leak approximately 3000 ohms. 2. After operation test, reduce filament voltage until power output reduces 10 per cent. 3. Read - at end of 5 minutes' operation. 4. After preceding reverse grid current test, open filament circuit, allow electrodes to cool below visible color, reclose filament circuit, and read - Ia immediately. 5. Calculate from plate characteristic tests. 4.45 (750) Filing No. 8850 GENERAL ELECTRIC Electronics Department GENERAL ELECTRIC Schenectady, N. Y. ETI-216 PAGE 1 SPECIFICATIONS PLIOTRON GL -862-A SPECIFICATIONS 4-45 GENERAL Equipment using this type should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-169. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawings. ELECTRICAL REQUIREMENTS Test methods according to IRE Standards Test See E, Note Volts Capacitance Cgp - Cgk Cpk Amplification factor Operation Emission -1 2 33 22 Plate characteristic 3 33 Plate characteristic 3 33 Grid characteristic 3 33 Reverse grid current 4 33 Filament current 33 TEST CONDITIONS IRE Symbols Eb E0, Ib Kv Volts Amp Ici Amp - 20 3 - 10 1.0 3000 read total read -100 3.0 read 0 3.0 18 read 0.1 20 adjust 2.5 read TEST LIMITS Time Minutes Min Max - 54 85 43 63 3 40 5 115 -6 50 Inst. 1.4 2.7 Inst. 18 23 Inst. -Inst. 5 -14 -280 199 18 -370 -500 215 Units AO AO Atlf kw amp kv kv volts µa amp NOTES 1. Calculate from plate characteristic readings. 2. Self-excited oscillator 1.5 Mc, grid leak approximately 1600 ohms. 3. Grid voltage measured from filament transformer centertap. 4. Read Id at end of 5 minutes' operation. 4-45 (750) Filing No. 8850 GENERAL ELECTRIC En -217 PAGE 1 SPECIFICATIONS PLIOTRON GL -880 SPECIFICATIONS 4-45 GENERAL Equipment using this type should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-170. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS Test methods according to IRE Standards Test See Ef Note Volts Capacitance Cgp Cgk Cpk --- - Amplification factor Operation Emission -1 2 12.6 7 Plate characteristic 3 12.6 Plate characteristic 3 12.6 Grid characteristic Reverse grid current Filament current -3 4 12.6 12.6 12.6 TEST CONDITIONS IRE Symbols Eb Eci Ib Ici Kv Volts Amp Amp ---- --- ---- -- 10 2 read read -10 10 2000 -200 0 read 4.5 read total 2.0 2.0 0.02 ---0.80 adjust 2.0 read TEST LIMITS Time Minutes Min Max ---5 21 27 28.8 41.2 1.0 18 28 -3.0 22 Inst. 0.2 0.5 Inst. 6.5 8.1 Inst. -Inst. 5 -2.8 3.6 -460 -690 -250 300 330 Units AO -iska- AO kw amp kv kv volts µa amp NOTES 1. Calculate from plate characteristic readings. 2. Self-excited oscillator, grid resistor approx 1600 ohms. 3. Grid voltage measured from filament transformer centertap. 4. Read Id at end of 5 minutes' operation. 4.45 (750) Filing No. 8850 GENERAL 0 ELECTRIC ETI-218 PAGE 1 SPECIFICATIONS PLIOTRON GL -889-A SPECIFICATIONS 4-45 GENERAL Equipment using this type should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ET I -171. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS Test methods according to IRE Standards Test See Note Capacitance Cgp Cgk Cpk Amplification factor 1 Operation 2 Emission Plate characteristic 3 Plate characteristic 3 Grid characteristic 3 Reverse grid current 4 Filament current Ef Volts 11 8 11 11 11 11 11 TEST CONDITIONS IRE Symbols Eb E0 Ib Kv Volts Amp TEST LIMITS let Amp Time Minutes Min Max Units 10 1 read read 7.5 7.5 - 2.0 0.30 1000 read total -200 1.0 0 1.0 read 0.02 - adjust 1.0 read 15.0 20.0 blilf 19.2 27.4 µkif 1.8 3.6 µµf 5 18.9 12 -23.1 kw Inst. 0.3 0.8 amp Inst. 6.5 8.5 kv - Inst. 2.8 3.8 kv Inst. -325 -475 volts 5 -100 µa 120 128 amp NOTES 1. Calculate from plate characteristic readings. 2. Self-excited oscillator, grid leak approx 6000 ohms. 3. Grid voltage measured from filament transformer centertap. 4. Read Li at end of 5 minutes' operation. 4.45 (750) Filing No. 8850 GENERAL ELECTRIC ETI-219 PAGE 1 SPECIFICATIONS PLIOTRON GL -891 SPECIFICATIONS 4-45 GENERAL Equipment using this type should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-172. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS Test methods according to IRE Standards Test See Ef Note Volts Capacitance Cgp Cgk Cpk Amplification factor 1 - Operation 2 22 Emission 15 Plate characteristic 3 22 Plate characteristic 3 22 Grid characteristic 3 22 grid current 4 22 Filament current 22 TEST CONDITIONS IRE Symbols Ei, Eel Ib Kv Volts Amp Icr Time Amp Minutes TEST LIMITS Min Max Units 17 2 read read 12 2000 -1000 0 read 2.2 read total 0.75 0.75 0.020 0.----16 10 adjust 0.75 read 5 Inst. Inst. Inst. Inst. 5 24 31 15 23 1.0 7.6 14 -3.0 9.4 0.35 0.85 9.5 11.5 1.6 2.2 -1500 -1950 -100 57 62 µµf -libti µ./..tf kw amp kv kv volts i.La amp NOTES 1. Calculate from plate characteristic readings. 2. Self-excited oscillator, 1.5 mc. Grid leak approx 17,500 ohms. 3. Grid voltage measured from filament transformer centertap. 4. Read Ij at end of 5 minutes' operation. 4-45 (750) Filing No. 8850 GENERAL ELECTRIC ETI-220 PAGE 1 SPECIFICATIONS PLIOTRON GL -892 SPECIFICATIONS 4-45 GENERAL Equipment using this type should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-173. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS Test methods according to IRE Standards Test See Note Capacitance Cgp - Cgk Cpk Amplification factor 1 Operation 2 Emission Plate characteristic 3 Plate characteristic 3 Grid Reverse grid current 4 Filament current Ef Volts - 22 15 22 22 22 22 TEST CONDITIONS IRE Symbols TEST LIMITS Eb Kv Eel Volts Ib Amp Ict Amp Time Minutes MM Max Units ---- ---- ---- 15 2.0 read read -- 2.0 0.25 2000 read total -100 0.75 0 0.75 -15 read adjust -0.50 read -- 5 27 33 µµf 15 0.5 42.5 20 - - 24 µµf 2.5 µµf 57.5 kw Inst. 0.35 0.85 amp Inst. 12 16.5 kv - Inst. 7.5 11.0 kv Inst. -240 -400 volts 5 -100 µa 57 62 amp NOTES 1. Calculate from plate characteristic readings. 2. Self-excited oscillator, 1.5 mc. Grid leak approx 5000 ohms. 3. Grid voltage measured from filament transformer centertap. 4. Read Ia at end of 5 minutes' operation. 4-45 (750) Filing No. 8850 GENERAL ELECTRIC ETI-221 PAGE 1 SPECIFICATIONS P L I OT R 0 N GL -893-A SPECIFICATIONS 4-45 GENERAL Equipment using this type should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-174. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS Test methods according to IRE Standards Test See Ef Note Volts Capacitance (Cg -p) Capacitance (Cg -f) Capacitance (Cp-f) - Amplification factor 3 Operation 1 20 Emission 14 Grid voltage 2 20 Plate voltage 2 20 Plate voltage 2 20 Reverse grid current 4 20 Filament current 20 TEST CONDITIONS IRE Symbols Eb E Ib Ic, Kv Volts Amp Amp - 20 2 20 read read -- -- -4 2000 read total read 0.02 -200 1.0 0 1.0 -0----.6 20 adjust 1.0 read Time - 5 min Inst. Inst. Inst. Inst. 5 min TEST LIMITS Min Max Units 28.5 39.5 2.0 32.4 50 1.5 -530 -9.2 3 175 37.5 56.5 -4.0 39.6 4.0 -770 13.2 5 -250 190 µµf AO -µId kw amp volts kv kv µa amp NOTES 1. Self-excited oscillator, grid leak approx 6000 ohms. 2. Grid voltage measured from filament trans - former centertap. 3. Calculate from plate voltage readings. 4. Read Id at end of 5 -minute operation. 4 -45 (750) Filing No. 8850 GENERAL 0 ELECTRIC ETI-239 PAGE 1 SPECIFICATIONS PLIOTRON GL -8002 SPECIFICATIONS 12-45 GENERAL Equipment using this type should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-175. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS Test methods according to IRE Standards TEST CONDITIONS IRE Symbols TEST LIMITS Test See Ef Eb Eel Note Volts Kv Volts Ih Amp Ici Time Amp Minutes Min Max Units Capacitance Cgp Cgk - - - 7.6 9.8 PIZ 8.4 12.0 1.9.d. Cpk Amplification Factor Operation Emission Plate Characteristic Plate Characteristic Grid Characteristic Reverse Grid Current Filament Current 1 2 3 3 3 4 16 11 16 16 16 16 16 4.0 1 Read Read 3.0 3.0 1.0 1000 Read total -50 0.5 0 0.5 Read 0.02 Adjust 0.5 0----.10 -Read 5 Inst. Inst. -Inst. Inst. 0.6 17.2 2.0 0.25 1.8 1.2 -160 35 -1.2 25.8 0.75 2.8 1.8 -270 -125 40 mbds kw amp kv kv volts ga amp NOTES 1. Calculate from plate characteristic readings. 2. Self-excited oscillator, grid resistor approx 1600 ohms. 3. Grid voltage measured from filament transformer centertap. 4. Read Ia at end of 5 minutes' operation. 12-45 (2M) Filing No. 8850 GENERAL 0 ELECTRIC ETI-240 PAGE 1 SPECIFICATIONS PLIOTRON GL -8002-R SPECIFICATIONS 12-45 GENERAL Equipment using this type should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-250. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS Test methods according to IRE Standards TEST CONDITIONS IRE Symbols TEST LIMITS Test See Ef Eb Eel Ib Ici Time Note Volts Kv Volts Amp Amp Minutes Max Units Capacitance Cgp Cgk Cpk Amplification Factor Operation Emission Plate Characteristic Plate Characteristic Grid Characteristic Reverse Grid Current Filament Current -1 2 3 3 -3 4 - 16 11 16 16 16 16 16 -- - - 4.0 1 Read Read 3.0 3.0 - - 1.0 1000 Read total -50 0.5 0 0.5 Read 0.02 Adjust 0.5 ----0.10 -Read -5 Inst. Inst. --Inst. Inst. 7.7 8.4 0.7 17.2 2.0 0.25 1.8 1.2 -160 35 10.1 12.0 -1.3 25.8 0.75 2.8 1.8 -270 -125 40 ililf Nuf Ahtf kw amp kv kv volts pa amp NOTES 1. Calculate from plate characteristic readings. 2. Self-excited oscillator, grid leak approx 4000 ohms. 3. Grid voltage measured from filament transformer centertap. 4. Read IC, at end of 5 minutes' operation. 12-45 (3M) Filing No. 8950 GENERAL 0 ELECTRIC ETI-257 PAGE 1 SPECIFICATIONS PLIOTRON GL -889R -A SPECIFICATIONS 12.45 GENERAL Equipment using this type should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-249. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS Test methods according to IRE Standards TEST CONDITIONS IRE Symbols TEST LIMITS Test See Ef Note Volts Eb Kv Eel Volts Ib Amp Id Time Amp Minutes Min Max Units Capacitance Cg -p Cg -k Cp-k -- - Amplification Factor Operation Emission -1 2 11 8 Plate Characteristic 3 11 Plate Characteristic 3 11 - Grid Characteristic 3 Reverse Grid Current 4 Filament Current 11 11 11 - --- 10 1.0 1.5 1000 read total -.30 read -200 1.0 read 0 1.0 7.5 read 0.02 5.0 adjust 1.0 read 5 Inst. Inst. Inst. Inst. 5 15.8 19.2 2 18.9 10 0.5 6.5 -2.8 -325 110 21.2 27.4 -4 23.1 1.4 8.5 3.8 -475 -100 128 ktµf µIA' Ai-tf kw amp kv kv volts iia amp Notes 1. Calculate from plate characteristic readings. 2. Self-excited oscillator, grid leak approxi- mately 6000 ohms. 3. Grid voltage measured from filament transformer centertap. 4. Read I at end of 5 minutes' operation. 12-45 (3M) Filing No. 8850 GENERAL 0 ELECTRIC ETI-258 PAGE 1 SPECIFICATIONS PLIOTRON GL -891-R SPECIFICATIONS !2-45 GENERAL Equipment using this type should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-246. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS Test methods according to IRE Standards TEST CONDITIONS IRE Symbols TEST LIMITS Test See Ef Note Volts Eb Ed Kv Volts Ib Amp Id Time Amp Minutes MM Max Units Capacitance Cg -p Cg -k Cp-k Operation Emission ---1 -- -- 22 15 Plate Characteristic 2 22 - Grid Characteristic 2 Reverse Grid Current 3 Filament Current 22 22 22 - 13.5 2.0 read -12 10 ---- 2000 0 -read adjust 1.0 read total 0.75 0.02 0.45 - ---0.075 read -- - 5 27 33 µpi 15 1.5 8.5 -21 AO' 2.5 kutf kw Inst. 0.35 0.65 amp Inst. -Inst. 5 -1.6 2.2 -1450 -1950 -100 58 61 kv volts µa amp Notes 1. Self-excited oscillator, 1.5 mc. Grid leak approx 25,000 ohms. 2. Grid voltage measured from filament trans - former centertap. 3. Read lc, at end of 5 minutes' operation. 12 -45 (3M) Filing No. 8850 GENERAL 0 ELECTRIC ETI-259 PAGE 1 SPECIFICATIONS PLIOTRON GL -892-R SPECIFICATIONS 12-45 GENERAL Equipment using this type should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-247. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS Test methods according to IRE Standards TEST CONDITIONS IRE Symbols TEST LIMITS Test See E1 Note Volts Eb Kv Eel Volts Ib Amp Li Amp Time Minutes Min Max Unit Capacitance Cg -p -- Cg -k Cp-k Amplification Factor 4 Operation Emission -1 22 15 Plate Characteristic 2 22 Plate Characteristic 2 22 Grid Characteristic 2 22 Reverse Grid Current 3 22 Filament Current 22 -- ---- 12.5 2.0 read read -15 12.5 2000 0 -100 read adjust 2.0 read total .42 0.42 0.020 0.42 ---0.25 - read 5 Inst. Inst. 5 28 34 15 24 - 1.0 3.0 42.5 -57.5 15 0.35 .85 5.0 7.4 -9.2 13.2 -240 -400 -100 57 62 Pmf mi.if jAft.if kw amp kw kv volts mu a amp Notes 1. Self-excited oscillator, 1.5 mc. Grid leak approx 5000 ohms. 2. Grid voltage measured from filament trans- former centertap. 3. Read I,, at end of 5 minutes' operation. 4. Calculate from plate characteristics. 12 -45 (3M) Filing No. 8850 GENERAL ELECTRIC ETI-260 PAGE 1 SPECIFICATIONS PLIOTRON GL -893A -R SPECIFICATIONS 12-45 GENERAL Equipment using this type should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-248. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS Test methods according to IRE Standards TEST CONDITIONS IRE Symbols TEST LIMITS Test See Ef Note Volts Eb Kv Ed Volts Ib Amp Id Time Amp Minutes Min Max Units Capacitance (Cg -p) Capacitance (Cg -f) Capacitance (Cp-f) --- Amplification Factor Oscillation Emission -3 1 - - 20 14 Grid Voltage 2 20 Plate Voltage 2 20 - Plate Voltage 2 Reverse Grid Current 4 Filament Current 20 20 20 - - -- 20 2 20 read -read 20 - 2000 read -200 -0 adjust --- -- 4.0 read total 0.02 1.0 -1.0 1.0 -0.6 --read --- 29.8 39.5 2.6 32.4 5 min 50 38.8 Aid 56.5 -4.4 39.6 -',Lauf plif kw Inst. 1.5 4.0 amp Inst. -530 -770 volt Inst. -Inst. 5 min -9.2 3 175 13.2 5 -250 190 kv kv /-ta amp Notes 1. Self-excited oscillator, grid leak approx 6000 ohms. 2, Grid voltage measured from filament trans - former centertap. 3. Calculate from plate voltage readings. 4. Read lc, at end of 5 -min. operation. 12 -45 (3M) Filing No. 8850 GENERAL ELECTRIC ETI-288 PAGE 1 SPECIFICATIONS PLIOTRON FP -265 SPECIFICATIONS 8-48 GENERAL Equipment using this type should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ET I-163. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS Test methods according to IRE Standards TEST CONDITIONS IRE Symbols Test See Ef Eb Eel Ib Note Volts Volts Volts Ma Capacitance Cgp Cgk Cpk Amplification factor Operation Emission check Plate current Reverse grid current (a) Reverse grid current (b) Filament current --1 -2 3 --4 - - -- -- 10 10 read 10 10 10 10 - -- read vary 1500 -90 200 1500 1500 1500 -5 -adjust -5 -read 200 TEST LIMITS Ici Ma Time Minutes MM Max Units - 9.5 12.5 µµf -4-----5 -2 -5 6.4 2.9 -67.5 180 --20 10.2 -4.7 82.5 -yid µµf watts -8.5 60 volts ma µa 15 µa 5.0 5.5 amp Notes 1. Read Eb for E = zero and +10 volts. 2. Self-excited oscillator, frequency approxi- mately 8 megacycles, grid leak approximately 5000 ohms. 3. After operation test, decrease E, until power output reduces 10 per cent. 4. Grid current to be read within three seconds maximum after switching over from condition "a." 8-48 (3M) Filing No. 8850 GENERAL ELECTRIC ETI-302 PAGE 1 SPECIFICATIONS GLOW TUBES GL -0D3 /VR150 SPECIFICATIONS 5.49 GENERAL Equipment using this type should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI -176. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS Test methods according to IRE Standards Limits Test See Note MM Max Units Starting voltage Anode voltage at 5 milliamperes anode current Anode voltage at 40 milliamperes anode current Regulation (5-40 milliamperes) 1 180 volts 2 145 volts 2 162 volts 5.5 volts NOTES: 1. Sufficient resistance is placed in series with the anode -supply voltage to limit the anode current to 30 milliamperes. The d -c anode -supply voltage is increased until complete breakdown occurs. Starting voltage is read just before breakdown. 2. The anode current specified is obtained by adjusting the d -c anode -supply voltage, the resistor in series with the anode, or both the voltage and resistor. 3. The regulation (5-40 milliamperes) is equal to the difference between the anode voltage at 5 milliamperes and the anode voltage at 40 milliamperes. 5-49 (3M) Filing No. 8850 GENERAL t ELECTRIC ETI-303 PAGE 1 SPECIFICATIONS G LOWTU B ES GL -0C3 /VR105 SPECIFICATIONS 5-49 GENERAL Equipment using this type should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-176. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS Test methods according to IRE Standards Limits Test See Note Min Max Units Starting voltage Anode voltage at 5 milliamperes anode current Anode voltage at 40 milliamperes anode current Regulation (5-40 milliamperes) 1 127 Volts 2 105 Volts 2 112 Volts 3 4 Volts NOTES: 1. Sufficient resistance is placed in series with the anode -supply voltage to limit the anode current to 30 milliamperes. The d -c anode -supply voltage is increased until complete breakdown occurs. Starting voltage is read just before breakdown. 2. The anode current specified is obtained by adjusting the d -c anode -supply voltage, the resistor in series with the anode, or both the voltage and resistor. 3. The regulation (5-40 milliamperes) is equal to the difference between the anode voltage at 5 milliamperes and the anode voltage at 40 milliamperes. 5-49 (3M) Filing No. 8850 GENERAL t ELECTRIC SPECIFICATIONS ETI-222A PAGE 1 SPECIFICATIONS PHOTOTUBES GL-1P29'FJ-401 5.49 GENERAL Equipment using these tubes should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-178. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS For all tests the anode voltage shall be applied through a resistance of one megohm. Test Monochromatic Sensitivity(S,) Type of Tube GL-1P29/FJ-401 TEST CONDITIONS See NEMA SYMBOLS Note E X, A --- 90 4000 90 4500 90 5000 90 7000 TEST LIMITS Min Max Unit 4.75 -3.75 2.75 - 1/2 Sv at µa/watt µa/watt µa/watt µa/watt 4000 5-49 (3M) Filing No. 8850 Supersedes ETI-222 dated 4-45 GENERAL ELECTRIC ETI-223 PAGE 1 SPECIFICATIONS PHOTOTUBE GL -9 1 7 SPECIFICATIONS 4-45 GENERAL Equipment using these tubes should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-183. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS TEST CONDITIONS TEST LIMITS Test See Note Light Flux 12,, Ebb Lumens Meg Min Max Units Emission 1, 5 25 0.1 1.0 1.0 µa Sensitivity 1, 5 250 0.1 1.0 1.2 3.2 µa Leakage 2 250 0 1.0 0.1 µa A -K resistance 3 0 50,000 Meg Gas ratio 4 1.3 NOTES 1. Light source: Mazda projection lamp operated at 2870 K. It shall be replaced or photometered every 100 hours. Use diaphragm opening IA in. in diameter. Center the light beam on the center of cathode. Pins 3 and 4 nearest light source. 2. This test is made in absolute darkness. 3. Use high resistance ohmmeter. 4. Gas ratio: Sensitivity/emission. 5. Preheat tubes for one hour with EH, =250 v, R0=1.0 meg. Light source: 125 v-25 w inside frosted Mazda lamp, operated at 117-127 v, rms. Phototube cathode located approx 6.5 in. from center of lamp filament. Center the light beam on center of cathode. Pins 3 and 4 nearest the light source. Adjust lamp voltage to give II, = 9 µa. 4-45 (750) Filing No. 8850 GENERAL ELECTRIC ETI-224 PAGE 1 SPECIFICATIONS PHOTOTUBE GL -919 SPECIFICATIONS 4-45 GENERAL Equipment using these tubes should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-185. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS TEST CONDITIONS TEST LIMITS Test See Note Light Flux R, Ebb Lumens Meg Min Max Units Emission 1, 4 25 Sensitivity 1, 4 250 Leakage 2 250 A -K resistance 5 Gas ratio 3 0.1 1.0 1.0 µa 0.1 1.0 1.2 3.2 µa 0 0 1.0 -50,000 0.1 1.3 µa Meg NOTES 1. Light source: Mazda projection lamp operated 2870 K. It shall be replaced or photometered every 100 hours. Use diaphragm opening lA in. in diameter. Center the light beam on center of cathode. Pins 3 and 4 nearest light source. 2. Use high resistance ohmmeter. This test is made in absolute darkness. 3. Gas ratio: Sensitivity/emission. 4. Preheat tubes for 1 hour with E,,,, = 250 v, R0= 1.0 meg light source: 125 v 25 w inside frosted Mazda lamp, operated at 117-127 v rms. Phototube cathodes located approx 6.5 in. from center of lamp filament. Center the light beam on the center of cathode. Pins 3 and 4 nearest to the light source. Adjust lamp voltage to give = 9 µa. 5. This test is made in absolute darkness. 4-45 (750) Filing No. 8850 GENERAL ELECTRIC ETI-225 PAGE 1 SPECIFICATIONS PHOTOTUBE GL -921 SPECIFICATIONS 4-45 GENERAL Equipment using these tubes should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-187. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS TEST CONDITIONS TEST LIMITS Test See Note Ebb Light Flux 12, Lumens Meg Min Max Units Emission 1 25 0.1 1.0 1.0 µa Sensitivity 1 90 0.1 1.0 7.5 20.5 µa Gas amplification 2 10 Leakage 3 90 0 1.0 0.1 µa NOTES 1. Light source: Mazda projection lamp operated at 2870 K. It shall be replaced or photometered every 100 hours. Use diaphragm opening in. in diameter. Center the light beam on the center of cathode. 2. Gas amplification: Sensitivity/emission. 3. This test is made in absolute darkness. 4-45 (750) Filing No. 8850 ETI-226 PAGE 1 SPECIFICATIONS PHOTOTUBE GL -922 SPECIFICATIONS 4-45 GENERAL Equipment using these tubes should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-188. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS TEST CONDITIONS TEST LIMITS Test See Note Ebb Light Flux Lumens R., Meg Min Max Units Emission 1, 5 25 Sensitivity 1, 5 250 Leakage 2 250 A -K resistance 3 Gas ratio 4 0.1 1.0 1.0 µa 0.1 0 0 -1.0 1.0 1.2 50,000 3.2 0.1 µa µa Meg 1.5 NOTES 1. Light source: Mazda projection lamp operated at 2870 K. It shall be replaced or photometered every 100 hours. Use diaphragm opening in. in diameter. Center the light beam on the center of cathode. 2. This test is made in absolute darkness. 3. Use high resistance ohmmeter. 4. Gas ratio: Sensitivity/emission. 5. Preheat tubes for one hour with E,,, = 250 v, R =1.0 meg. Light source: 125 v 25 w inside frosted Mazda lamp, operated at 117-127 v rms. Phototube cathode located approx 6.5 in. from center of lamp filament. Center of lamp filament is to be on same plane as center of cathode. Adjust lamp voltage to give I,, = 4 µa. 4-45 (750) Filing No. 8850 GENERAL ELECTRIC ET1-227 PAGE 1 SPECIFICATIONS PHOTOTUBE GL -923 SPECIFICATIONS 4-45 GENERAL Equipment using these tubes should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-189. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS Test Dark Current Emission Sensitivity Gas Amplification Interelectrode Capacitance TEST CONDITIONS See Note Light Flux R, Ebb Lumens Megohms 1 90 0 1.0 2 2 3 -25 90 0.1 1.0 0.1 -1.0 TETS LIMITS Min Max Units - 0.1 µa D -c 1.0 µa D -c 7.5 20.5 µa D -c 10 1.5 2.5 1-1/2f Note 1 This test is made in absolute darkness. 2 Test made in a light -tight compartment with a Mazda projection lamp operated at 2870 K as a source of light. A dia- phragm with an opening 1A -inch in diameter is located so that the light beam is centered on the cathode. 3-Gas amplification: Sensitivity/Emission. 4-45 (750) Filing No. 8850 ETI-228 PAGE 1 SPECIFICATIONS PHOTOTUBE GL -927 SPECIFICATIONS 4-45 GENERAL Equipment using these tubes should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-190. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS Test NoteLEumbbenMs eg TEST CONDITIONS See Light Flux Rp TEST LIMITS Min Max Units Emission 1 Sensitivity 1 Gas amplification 2 25 90 0.1 0.1 1.0 1.0 .9 6.0 18.5 10 -pa µa Leakage 3 90 0 1.0 0.1 /la NOTES 1. Light source: Mazda projection lamp operated at 2870 K. It shall be replaced or photometered every 100 hours. Use diaphragm opening of 17 mm by 7.5 mm rectangular aperture. Center the light beam on center of cathode. Pin 2 nearest the light source. 2. Gas amplification: Sensitivity/emission. 3. This test is made in absolute darkness. 4-45 (750) Filing No. 8850 GENERALOELECTRIC SPECIFICATIONS ETI-229 PAGE 1 SPECIFICATIONS PHOTOTUBE GL -929 4-45 GENERAL Equipment using these tubes should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-191. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS TEST CONDITIONS TEST LIMITS Test See Note Ebb Light Flux R, Lumens Megohms Min Max Units Dark Current Emission Sensitivity Gas Amplification Interelectrode Capacitance 1 250 0 1.0 0.0125 µa D -c 2 2 3 25 -250 0.1 -0.1 -1.0 1.0 -2.5 7.0 1.25 1.9 3.3 µa D -c µa D -c i-tµf Note 1 This test is made in absolute darkness. 2 Test made in a light -tight compartment with a Mazda projection lamp operated at 2870 K as a source of light. A dia- phragm with an opening 1A -inch in diameter is located so that the light beam is centered on the cathode. 3 Gas amplification: Sensitivity/Emission. 4-45 (750) Filing No. 8850 GENERAL ELECTRIC ETI-230 PAGE 1 SPECIFICATIONS PHOTOTUBE GL -930 SPECIFICATIONS 4-45 GENERAL Equipment using these tubes should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-192. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS TEST CONDITIONS TEST LIMITS Test See Note Ebb Light Flux R ,, Lumens Megohms Min Max Units Dark Current Emission Sensitivity Gas Amplification Interelectrode Capacitance 1 90 0 1.0 0.1 µa D -c 2 -2 3 25 90 -0.1 0.1 1.0 1.0 1.0 µa D -c 7.5 20.5 µa D -c 10 1.8 3.2 µPcf Note 1 This test is made in absolute darkness. 2-Test made in a light -tight compartment with a Mazda projection lamp operated at 2870 K as a source of light. A dia- phragm with an opening 1A -inch in diameter is located so that the light beam is centered on the cathode. 3 -Gas amplification: Sensitivity/Emission. 4-45 (750) Filing No. 8850 GENERAL0ELECTRIC ETI-231 PAGE 1 SPECIFICATIONS PHOTOTUBE GL -931-A SPECIFICATIONS 4-45 GENERAL Equipment using these tubes should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-193. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS TEST CONDITIONS TEST LIMITS Test See Note Volts per Stage Light Ebb Flux Lumens 12p Meg Min Avg Max Units Anode current Cathode current Anode leakage Cathode leakage Amplification 1, 2 100 100 0.001 0.01 450 2000 µa 2, 3 1 1 4 100 100 0.001 100 0 100 0 0.01 0.01 0.01 -0.006 75000 0.010 0.1 200000 0.25 -5.0 µa µa -µa NOTE 1. E, voltage is measured between ninth dynode and the anode. 2. Light source: MAZDA projection lamp oper- ated at 2870 K. Lighted cathode area shall not be less than 7 square millimeters (approximately 3 millimeter -diameter aperture). Adjust tube position to give the maximum sensitivity. 3. 100 volts applied between pins 1 and 2 and the cathode. 4. Amplification: Anode current/cathode cur- rent. 4-45 (750) Filing No. 8850 GENERAL ELECTRIC ETI-241 PAGE 1 SPECIFICATIONS PHOTOTUBE GL -918 SPECIFICATIONS 12-45 GENERAL Equipment using these tubes should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-184. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS TEST CONDITIONS TEST LIMITS Test See Note Ebb Light Flux Rp Volts Lumens Meg Min Max Units Dark Current 1 90 Emission 2 25 Sensitivity 2 90 Gas Amplification 3 Interelectrode Capacitance 0 1.0 0.1 µa D -c 0.1 1.0 1.8 µa D -c 0.1 1.0 10.0 20.5 µa D -c 10.5 1.9 3.5 i-cµf NOTES 1. This test made in absolute darkness. 2. Test made in a light -tight compartment with a Mazda projection lamp operated at 2870 K as a source of light. A diaphragm with an opening 2- inch in diameter is located so that the light beam is centered on the cathode. 3. Gas Amplification: Sensitivity Emission 12-45 (2M) Filing No. 8850 GENERAL 0 ELECTRIC En -276 PAGE 1 SPECIFICATIONS PHOTOTUBE PJ-22 SPECIFICATIONS 3-47 GENERAL Equipment using these tubes should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-179. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS TEST CONDITIONS TEST LIMITS Test See Note Ebb Light Flux R., Volts Lumens Meg Min Max Units Dark Current 1 90 Emission 2 90 Sensitivity 2 200 Gas Amplification 3 Interelectrode Capacitance 0 1.0 0.1 µa D -c 0.5 1.0 3.5 µa D -c 0.5 1.0 µa D -c 1.1 1.9 3.5 µµf NOTES 1. This test made in absolute darkness. 2. Test made in a light -tight compartment with a Mazda projection lamp operated at 2870 K as a source of light. A diaphragm with an opening IA - inch in diameter is located so that the light beam is centered on the cathode. 3. Gas Amplification: Sensitivity Emission Supersedes in part ED -222 dated 4-45 3 -47 (3M) Filing No. 8850 GENERAL ELECTRIC EV-277 PAGE 1 SPECIFICATIONS PHOTOTUBE GL -441 SPECIFICATIONS 3-47 GENERAL Equipment using these tubes should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-181. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS TEST CONDITIONS TEST LIMITS Test See Note EH, Light Flux R., Volts Lumens Meg Min Max Units Dark Current 1 250 0 1.0 0.1 µa D -c Emission 2 25 0.1 1.0 2.1 µa D -c Sensitivity 2 250 0.1 1.0 2.5 7.0 ma D -c Gas Amplification 3 1.25 Interelectrode Capacitance 1.9 3.5 µµf NOTES 1. This test made in absolute darkness. 2. Test made in a light -tight compartment with a Mazda projection lamp operated at 2870 K as a source of light. A diaphragm with an opening M- inch in diameter is located so that the light beam is centered 3. Gas Amplification: Sensitivity Emission Supersedes in part ETI-222 dated 4-45 3-47 (3M) Filing No. 8850 GENERAL ELECTRIC ETI-278 PAGE 1 SPECIFICATIONS PHOTOTUBE GL -868 PJ-23 SPECIFICATIONS 3.47 GENERAL Equipment using these tubes should be so designed that any tube within the limits specified will operate satisfactorily. The tube shall have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-182. MECHANICAL REQUIREMENTS The tube shall have the dimensions and be within the tolerances shown on the tube outline drawing. ELECTRICAL REQUIREMENTS TEST CONDITIONS TEST LIMITS Test See Note Ebb Light Flux Rp Volts Lumens Meg Min Max Units Dark Current 1 90 Emission 2 25 Sensitivity 2 90 Gas Amplification 3 Interelectrode Capacitance 0 1.0 - 0.1 µa D -c 0.1 0.1 1.0 1.0 -0.7 5.0 µa D -c 14.5 µa D -c 8.0 1.9 3.5 kt,uf NOTES 1. This test made in absolute darkness. 2. Test made in a light -tight compartment with a Mazda projection lamp operated at 2870 K as a source of light. A diaphragm with an opening IA - inch in diameter so that the light beam is centered on the cathode. 3. Gas Amplification: Sensitivity Emission Supersedes in part ETI-222 dated 4-45 3 -47 (3M) Filing No. 8850 GENERAL 0 ELECTRIC SPECIFICATIONS ETI-271 PAGE 1 SPECIFICATIONS VACUUM CAPACITORS GL -1L22, 1L23, 1L24 AND 1L25 1 1 -46 GENERAL Equipment using these types should be so designed that any capacitor within the limits specified will operate satisfactorily. The capacitor shall be designed to have the average characteristics and maximum ratings given on Description and Rating sheets, ETI-263, 264, 265 and 266. MECHANICAL REQUIREMENTS The capacitor shall have the dimensions and be within the tolerances shown on the outline. ELECTRICAL REQUIREMENTS Test Test Condition LIMITS Min Max Capacitance GL -1L22 GL -1L23 GL -1L24 GL -1L25 23.75 47.5 96.0 11.4 26.25 Micromicrofarads 52.5 Micromicrofarads 104.0 Micromicrofarads 12.6 Micromicrofarads R -F Voltage Breakdown GL -1L22 GL -1L23 GL -1L24 GL -1L25 1.8 Megacycles 1.8 Megacycles 1.8 Megacycles 1.8 Megacycles 20,000 Volts peak 20,000 Volts peak 20,000 Volts peak 20,000 Volts peak Vibration-High Voltage GL -1L22 GL -1L23 GL -1L24 GL -1L25 For Notes see page 2 20,000 volts peak Capacitor shall not indicate a prolonged short. 60 cycles a -c applied during vibration GENERAL ELECTRIC En -271 PAGE 2 11-46 NOTES R -f Voltage Breakdown The test set consists of a self-excited oscillator operating on 1.8 megacycles. The capacitor is connected in series with an r -f ammeter and connected in parallel with the plate inductance of the oscillator. With a peak voltage of 20,000 volts applied across the capacitor, there shall be no evidence of internal discharge. Vibration-High Voltage For this test the capacitor is fixed in a test set that vibrates the capacitor at a rate of approxi- mately 20 cycles per second. The capacitor is fixed so that it is shaken in the plane at right angles to the capacitor axis. The throw is approximately inch. While the vibration is taking place, an a -c 60 cycle voltage of 20,000 volts peak is applied to the tube. In series with this circuit is a 50,000 -ohm resistor and a 2 -watt neon lamp shunted with a 10,000 -ohm resistor. The vibration shall not cause the capacitor cylinder to be deformed sufficiently to pass a current through the neon lamp which will light both sections of the lamp for five seconds or more. Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 11-46 (3M) Filing No. 8850 SPECIFICATIONS ETI-272 PAGE 1 SPECIFICATIONS VACUUM CAPACITORS GL -1L21, 1L33 1L36 AND 1L38 1 1 -46 GENERAL Equipment using these types should be so designed that any capacitor within the limits specified will operate satisfactorily. The capacitor shall be designed to have the average characteristics and maximum ratings given on Description and Rating sheets, ETI-262, 267, 268 and 269. MECHANICAL REQUIREMENTS The capacitor shall have the dimensions and be within the tolerances shown on the outline. Test Capacitance GL -1L21 GL -1L33 GL -1L36 GL -1L38 R -F Voltage Breakdown GL -1L21 GL -1L33 GL -1L36 GL -1L38 Vibration-High Voltage GL -1L21 GL -1L33 GL -1L36 GL -1L38 For Notes see page 2 ELECTRICAL REQUIREMENTS Test Condition LIMITS Min Max 11.4 95.0 23.75 47.5 12.6 Micromicrofarads 105.0 Micromicrofarads 26.25 Micromicrofarads 52.5 Micromicrofarads 1.8 Megacycles 1.8 Megacycles 1.8 Megacycles 1.8 Megacycles 9000 Volts peak 9000 Volts peak 9000 Volts peak 9000 Volts peak 10,000 volts peak Capacitor shall not indicate a prolonged short. 60 cycles a -c applied during vibration GENERAL ELECTRIC ETI-272 PAGE 2 11-46 NOTES R -f Voltage Breakdown The test set consists of a self-excited oscillator operating on 1.8 megacycles. The capacitor is connected in series with an r -f ammeter and connected in parallel with the plate inductance of the oscillator. With a peak voltage of 9000 volts applied across the capacitor, there shall be no evidence of internal discharge. Vibration-High Voltage For this test the capacitor is fixed in a test set that vibrates the capacitor at a rate of approximate - ly 20 cycles per second. The capacitor is fixed so that it is shaken in the plane at right angles to the capacitor axis. The throw is approximately 1/4 inch. While the vibration is taking place, an a -c 60 cycle voltage of 10,000 volts peak is applied to the tube. In series with this circuit is a 50,000 -ohm resistor and a 2 -watt neon lamp shunted with a 10,000 -ohm resistor. The vibration shall not cause the capacitor cylinder to be deformed sufficiently to pass a current through the neon lamp which will light both sections of the lamp for five seconds or more. Electronics Department GENERAL ELECTRIC Schenectady, N. Y. 11 -46 (3M) Filing No. 8850 ETI-232 PAGE 1 SPECIFICATIONS VACUUM SWITCH FA -6 SPECIFICATIONS 12-45 GENERAL Equipment in which these switches are used should be so designed that any switch within the limits specified will operate satisfactorily. The switch shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-197. MECHANICAL REQUIREMENTS The switch shall have the dimensions and be within the tolerances shown on the outline drawing. MECHANICAL TEST REQUIREMENTS TEST LIMITS Test See Note Min Max Units Arm Travel Initial Tension Force Voltage 1 0.007 2 3 ELECTRICAL REQUIREMENTS 4 2100 0.017 120 300 inches grams grams volts a -c rms NOTES 1. Arm travel is the motion required to move the operating arm paddle from one stationary contact to the other. The measurement shall be made on the operating arm at a point 5% inch from the diaphragm. 2. Initial tension is the force required to open the moving contact, if it is initially closed on one side. The measurement shall be made on the operating arm at a point 5% inch from the dia- phragm. 3. Force is the force required to move the operating arm paddle from one stationary contact to the other, including initial tension. The measure- ment shall be made on the operating arm at a point 5A inch from the diaphragm. 4. With the operating arm in the neutral position there shall be no external arcing when the voltage specified is applied between the common terminal and the two contact terminals for a period of one second. 12-45 (2M) Filing No. 8850 0 GENERAL ELECTRIC ETI-233 PAGE 1 SPECIFICATIONS VACUUM SWITCH F A - 1 5 SPECIFICATIONS 12-45 GENERAL Equipment in which these switches are used should be so designed that any switch within the limits specified will operate satisfactorily. The switch shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-198. MECHANICAL REQUIREMENTS The switch shall have the dimensions and be within the tolerance shown on the outline drawing. MECHANICAL TEST REQUIREMENTS TEST LIMITS Test See Note Min Max Units Arm Travel Initial Tension Force Voltage 1 0.005 2 3 ELECTRICAL REQUIREMENTS 4 3000 0.009 100 300 - inches grams grams volts a -c rms NOTES 1. Arm travel is the motion required to move 4. The switch shall withstand the application the operating arm paddle from one stationary of the specified voltage, applied across the station- cmoandteacotntothtehoepoetrhaetirn.gTahremmateaaspuorienmt e5ntinschhalflrobme ary contacts, for 10 seconds with no visible arcing or flashing. For the purpose of this test fluorescent the diaphragm. spots on the glass envelope of the switch shall not 2. Initial tension is the force required to open the moving contact, if it is initially closed on one side. The measurement shall be made on the operating arm at a point N inch from the dia- phragm. be construed as arcing or flashing. The test shall be made with the moving contact held firmly against one stationary contact for five seconds. The test shall be repeated with the moving contact held firmly against the other stationary contact for five seconds. 3. Force is the force required to move the The power supply shall be capable of supplying operating arm paddle from one stationary contact at least one milliampere of current, and the wave- to the other, including initial tension. The measure- form of the voltage shall be essentially a sine wave ment shall be made on the operating arm at a with no transient voltage peaks. point 5A inch from the diaphragm. The testing shall be conducted in semi -darkness. 12-45 (21,0 Filing No. 8850 GENERAL ELECTRIC ETI-232A PAGE 1 SPECIFICATIONS VACUUM SWITCH GL -5627 /FA -6 SPECIFICATIONS 12-48 GENERAL Equipment in which these switches are used should be so designed that any switch within the limits specified will operate satisfactorily. The switch shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ET I -197A. MECHANICAL REQUIREMENTS The switch shall have the dimensions and be within the tolerances shown on the outline drawing. MECHANICAL TEST REQUIREMENTS TEST LIMITS Test See Note Min Max Units Arm Travel Initial Tension Force Voltage 1 2 -0.007 3 ELECTRICAL REQUIREMENTS 4 2100 0.017 120 300 inches grams grams volts a -c rms NOTES 1. Arm travel is the motion required to move the operating arm paddle from one stationary contact to the other. The measurement shall be made on the operating arm at a point N inch from the diaphragm. 3. Force is the force required to move the operating arm paddle from one stationary contact to the other, including initial tension. The measure- ment shall be made on the operating arm at a point % inch from the diaphragm. 2. Initial tension is the force required to open 4. With the operating arm in the neutral posi- the moving contact, if it is initially closed on one tion there shall be no external arcing when the side. The measurement shall be made on the voltage specified is applied between the common operating arm at a point N inch from the dia- terminal and the two contact terminals for a phragm. period of one second. 12-48 (3M) Filing No. 8850 GENERAL ELECTRIC ETI-233A PAGE 1 SPECIFICATIONS VACUUM SWITCH GL -5626 IFA-15 SPECIFICATIONS 12-48 GENERAL Equipment in which these switches are used should be so designed that any switch within the limits specified will operate satisfactorily. The switch shall be designed to have the average characteristics and maximum ratings given on the Description and Rating Sheet, ETI-198A. MECHANICAL REQUIREMENTS The switch shall have the dimensions and be within the tolerance shown on the outline drawing. MECHANICAL TEST REQUIREMENTS TEST LIMITS Test See Note Min Max Units Arm Travel Initial Tension Force Voltage 1 2 3 -0.005 ELECTRICAL REQUIREMENTS 4 3000 0.009 100 300 - inches grams grams volts a -c rms NOTES 1. Arm travel is the motion required to move the operating arm paddle from one stationary contact to the other. The measurement shall be made on the operating arm at a point N inch from the diaphragm. 2. Initial tension is the force required to open the moving contact, if it is initially closed on one side. The measurement shall be made on the operating arm at a point N inch from the dia- phragm. 3. Force is the force required to move the operating arm paddle from one stationary contact to the other, including initial tension. The measure- ment shall be made on the operating arm at a point N inch from the diaphragm. 4. The switch shall withstand the application of the specified voltage, applied across the stationary contacts, for 10 seconds with no visible arcing or flashing. For the purpose of this test fluorescent spots on the glass envelope of the switch shall not be construed as arcing or flashing. The test shall be made with the moving contact held firmly against one stationary contact for five seconds. The test shall be repeated with the moving contact held firmly against the. other stationary contact for five seconds. The power supply shall be capable of supplying at least one milliampere of current, and the waveform of the voltage shall be essentially a sine wave with no transient voltage peaks. The testing shall be conducted in semi -darkness. 12-48 (3M) Filing No. 8850 GENERAL ELECTRICMP Navigator EX PdfCompressor 6.5.985