| Electron tube Type | Brand | System | Data sheet | 
    | G1/236G | STC | TRI`° | G1-236G.pdf (218124 bytes) | 
    | G1/236G | Brimar | TRI`° | G400-1K.pdf (189371 bytes) | 
    | G1/371K | STC | TRI`° | G1-371K.pdf (181664 bytes) | 
    | G1/371K | Brimar | TRI`° | G1-371K.pdf (287334 bytes) | 
    | G10/1d | RFT | R° | G10-1d.pdf (49981 bytes) (de) | 
    | G10/1dV | RFT | R° | G10-1dV.pdf (46557 bytes) (de) | 
    | G10/241E | STC | DCT`° | G10-241E.pdf (227503 bytes) | 
    | G10/241E | Brimar | DCT`° | G1-371K.pdf (287334 bytes) | 
    | G105/1D | STC | v`° | G105-1D.pdf (83252 bytes) | 
    | G1060 | Splendor | rr | G280.pdf (333542 bytes) (nl) | 
    | G108/1K | STC | v`° | G108-1K.pdf (106554 bytes) | 
    | G11/130 | Cerberus | SWD`° | G11.pdf (204610 bytes) | 
    | G11/155 | Cerberus | SWD`° | G11.pdf (204610 bytes) | 
    | G11/155 | Cerberus | SWD`° | G11-155.pdf (174977 bytes) | 
    | G11/220 | Cerberus | SWD`° | G11.pdf (204610 bytes) | 
    | G120/1B | STC | v`° | G120-1B.pdf (56482 bytes) | 
    | G140 | Splendor | r | G140.pdf (194121 bytes) (nl) | 
    | G150/1A | STC | THY | G150-1A.pdf (64997 bytes) | 
    | G150/2D | STC | THY | G150-2D.pdf (186224 bytes) | 
    | G150/2D | STC | THY | G150-2D.pdf (50517 bytes) | 
    | G150/2D | Brimar | THY | G1-371K.pdf (287334 bytes) | 
    | G150/3D | STC | v`° | G150-3D.pdf (83321 bytes) | 
    | G150/4K | STC | v`° | G150-4K.pdf (107846 bytes) | 
    | G180/2G | STC | v`° | G180-2G.pdf (110418 bytes) | 
    | G180/2M | STC | v`° | G180-2G.pdf (110418 bytes) | 
    | G20/40i | AEG | R° | G20-40i.pdf (82763 bytes) (de) | 
    | G20/5d | AEG | R° | G20-5d.pdf (78428 bytes) (de) | 
    | G240/2D | STC | THY | G240-2D.pdf (66880 bytes) | 
    | G240/2D | STC | THY | G240-2D.pdf (58466 bytes) | 
    | G280 | Splendor | rr | G280.pdf (333542 bytes) (nl) | 
    | G400/1K | STC | v`° | G400-1K.pdf (60214 bytes) | 
    | G400/1K | Brimar | v`° | G400-1K.pdf (189371 bytes) | 
    | G400/2G | STC | v`° | G400-2G.pdf (67213 bytes) | 
    | G42 | Cerberus | SWD`° | G42.pdf (244358 bytes) | 
    | G530 | Splendor | r | G530.pdf (201289 bytes) (nl) | 
    | G55/1K | STC | v`° | G55-1K.pdf (150481 bytes) | 
    | G7.5/0.6d | AEG | R° | G7-5-0-6d.pdf (79701 bytes) (de) | 
    | G75/2D | STC | v`° | G75-2D.pdf (82727 bytes) | 
    | G75/3G | STC | v`° | G75-3G.pdf (70918 bytes) | 
    | G811  811 | Electronintorg | T~ | G811.pdf (88201 bytes) | 
    | GA11 | Cerberus | CDT`° | GA11.pdf (127852 bytes) | 
    | GA12 | Cerberus | CDT`° | GA11.pdf (127852 bytes) | 
    | GA13 | Cerberus | CDT`° | GA11.pdf (127852 bytes) | 
    | GA21 | Cerberus | CDT`° | GA11.pdf (127852 bytes) | 
    | GA560 | RFT | NOD | GA560.pdf (56709 bytes) (de) | 
    | GC10/2P | Ericsson Telephones Ltd | DCT`° | GC10-2P.pdf (69801 bytes) | 
    | GC10/4B | Ericsson Telephones Ltd | DCT`° | GC10-4B.pdf (82845 bytes) | 
    | GC10/4B/L | Ericsson Telephones Ltd | DCT`° | GC10B.pdf (271738 bytes) | 
    | GC10B | Ericsson Telephones Ltd | DCT`° | GC10B.pdf (271738 bytes) | 
    | GC10B/L | Ericsson Telephones Ltd | DCT`° | GC10B.pdf (271738 bytes) | 
    | GC10B/S | Ericsson Telephones Ltd | DCT`° | GC10B.pdf (271738 bytes) | 
    | GC10D | Ericsson Telephones Ltd | DCT`° | GC10D.pdf (108851 bytes) | 
    | GC12/4B | Ericsson Telephones Ltd | CNT`° | GC12-4B.pdf (85462 bytes) | 
    | GCA10G | Ericsson Telephones Ltd | DCT`° | GCA10G.pdf (232230 bytes) | 
    | GD108M | Ericsson Telephones Ltd | v`° | GD108M.pdf (49033 bytes) | 
    | GD120A/S | Ericsson Telephones Ltd | v`° | GD120A-S.pdf (41129 bytes) | 
    | GD135 | Cerberus | SWD` | GD135.pdf (64505 bytes) | 
    | GD150A/S | Ericsson Telephones Ltd | v`° | GD150A-S.pdf (45419 bytes) | 
    | GD150M | Ericsson Telephones Ltd | v`° | GD150M.pdf (41740 bytes) | 
    | GD150M/S | Ericsson Telephones Ltd | v`° | GD150M-S.pdf (40029 bytes) | 
    | GD150P | Ericsson Telephones Ltd | v`° | GD150P.pdf (39104 bytes) | 
    | GD2V | Ericsson Telephones Ltd | SGT | GD2V.pdf (37376 bytes) | 
    | GD340W | Ericsson Telephones Ltd | v`° | GD340W.pdf (50301 bytes) | 
    | GD350X | Ericsson Telephones Ltd | v`° | GD350X.pdf (46079 bytes) | 
    | GD350Y | Ericsson Telephones Ltd | v`° | GD350X.pdf (46079 bytes) | 
    | GD550W | Ericsson Telephones Ltd | SGT | GD550W.pdf (44549 bytes) | 
    | GD75P | Ericsson Telephones Ltd | v`° | GD75P.pdf (43159 bytes) | 
    | GD83M | Ericsson Telephones Ltd | v`° | GD83M.pdf (74682 bytes) | 
    | GD85M/R | Ericsson Telephones Ltd | v`° | GD85M-S.pdf (432592 bytes) | 
    | GD85M/S | Ericsson Telephones Ltd | v`° | GD85M-S.pdf (432592 bytes) | 
    | GD85P/RS | Ericsson Telephones Ltd | v`° | GD85M-S.pdf (432592 bytes) | 
    | GD85WR | Ericsson Telephones Ltd | v`° | GD85WR.pdf (55339 bytes) | 
    | GD86W/S | Ericsson Telephones Ltd | v`° | GD86W-S.pdf (54911 bytes) | 
    | GD87M | Ericsson Telephones Ltd | v`° | GD87M.pdf (44620 bytes) | 
    | GD90M | Ericsson Telephones Ltd | v`° | GD90M.pdf (41095 bytes) | 
    | GDT120M | Ericsson Telephones Ltd | TRI`° | GDT120M.pdf (96452 bytes) | 
    | GDT120T | Ericsson Telephones Ltd | TRI`° | GDT120T.pdf (71342 bytes) | 
    | GE10 | Ferranti | SAD | GE10.pdf (108508 bytes) | 
    | GE12661 | General Electric | t~ | GE12661.pdf (283318 bytes) | 
    | GE13971 | General Electric | T~ | GE13971.pdf (296749 bytes) | 
    | GE14501 | General Electric | t~ | GE14501.pdf (274831 bytes) | 
    | GE14811 | General Electric | T~ | GE14811.pdf (297591 bytes) | 
    | GE15371 | General Electric | T~ | GE15371.pdf (300955 bytes) | 
    | GE16231 | General Electric | T~ | GE16231.pdf (281481 bytes) | 
    | GE16411 | General Electric | t~ | GE16411.pdf (281061 bytes) | 
    | GE16841 | General Electric | t~ | GE16841.pdf (265384 bytes) | 
    | GE17241 | General Electric | T~ | GE17241.pdf (279206 bytes) | 
    | GE17701 | General Electric | t~ | GE17701.pdf (295734 bytes) | 
    | GE18651 | General Electric | T~ | GE18651.pdf (305847 bytes) | 
    | GI11B   11   | Electronintorg | T~ | GI11B.pdf (187196 bytes) | 
    | GI12B   12   | Electronintorg | T~ | GI12B.pdf (227977 bytes) | 
    | GI130M   130   | Electronintorg | T~ | GI13BM.pdf (221235 bytes) | 
    | GI13BM   13    | Electronintorg | T~ | GI13BM.pdf (221235 bytes) | 
    | GI150-1   150-1   | Electronintorg | T~ | GI15B-1.pdf (155277 bytes) | 
    | GI150   150 | Electronintorg | T~ | GI15B.pdf (297765 bytes) | 
    | GI15B-1   15  -1 | Electronintorg | T~ | GI15B-1.pdf (155277 bytes) | 
    | GI15B   15   | Electronintorg | T~ | GI15B.pdf (297765 bytes) | 
    | GI19B   19   | Electronintorg | T~ | GI19B.pdf (116552 bytes) | 
    | GI210   210 | Electronintorg | T~ | GI21B.pdf (218131 bytes) | 
    | GI21B   21   | Electronintorg | T~ | GI21B.pdf (218131 bytes) | 
    | GI22   22 | Electronintorg | T~ | GI22.pdf (231320 bytes) | 
    | GI23B   23   | Electronintorg | T~ | GI23B.pdf (128949 bytes) | 
    | GI25   25 | Electronintorg | T~ | GI25.pdf (208874 bytes) | 
    | GI26A   26   | Electronintorg | T~ | GI26A.pdf (170535 bytes) | 
    | GI26B   26   | Electronintorg | T~ | GI26B.pdf (144170 bytes) | 
    | GI27AM   27    | Electronintorg | T~ | GI27AM.pdf (173901 bytes) | 
    | GI30   30   | Electronintorg | QQ~ | GI30.pdf (147594 bytes) | 
    | GI31   31 | Electronintorg | T~ | GI31.pdf (229999 bytes) | 
    | GI39B   39   | Electronintorg | T~ | GI39B.pdf (246410 bytes) | 
    | GI41-1   41-1 | Electronintorg | T~ | GI41-1.pdf (259392 bytes) | 
    | GI41   41 | Electronintorg | T~ | GI41.pdf (266106 bytes) | 
    | GI42B   42   | Electronintorg | T~ | GI42B.pdf (184015 bytes) | 
    | GI46B   46   | Electronintorg | T~ | GI46B.pdf (327243 bytes) | 
    | GI50A   50   | Electronintorg | T~ | GI50A.pdf (239698 bytes) | 
    | GI53   53 | Electronintorg | T~ | GI53.pdf (164196 bytes) | 
    | GI5B   5   | Electronintorg | T~ | GI5B.pdf (156737 bytes) | 
    | GI6B   6   | Electronintorg | Q~ | GI6B.pdf (302292 bytes) | 
    | GI70BT   70    | Electronintorg | T~ | GI7BT.pdf (327848 bytes) | 
    | GI70B   70   | Electronintorg | T~ | GI7B.pdf (394447 bytes) | 
    | GI7BT   7    | Electronintorg | T~ | GI7BT.pdf (327848 bytes) | 
    | GI7B   7   | Electronintorg | T~ | GI7B.pdf (394447 bytes) | 
    | GK10 | Ferranti | t`° | GK10.pdf (76188 bytes) | 
    | GK11 | Cerberus | TBT` | GK11.pdf (174740 bytes) | 
    | GK11P   11   | Electronintorg | Q~ | GK11P.pdf (429241 bytes) | 
    | GK12A   12   | Electronintorg | T~ | GK12A.pdf (240761 bytes) | 
    | GK32 | Ferranti | t`° | GK32.pdf (95595 bytes) | 
    | GK33 | Ferranti | t`° | GK32.pdf (95595 bytes) | 
    | GK40 | Ferranti | t`° | GK40.pdf (97558 bytes) | 
    | GK41 | Ferranti | t`° | GK40.pdf (97558 bytes) | 
    | GK5A   5   | Electronintorg | T~ | GK5A.pdf (123874 bytes) | 
    | GK71   71   | Electronintorg | P~ | GK71.pdf (276015 bytes) | 
    | GK9B   9   | Electronintorg | T~ | GK9B.pdf (165788 bytes) | 
    | GK9P   9   | Electronintorg | T~ | GK9P.pdf (184971 bytes) | 
    | GKD1-500/20    1-500/20 | Ryazan | R° | GKD1-500-20.pdf (180292 bytes) | 
    | GL0A3 (= 0A3) | General Electric | v`° | GL874.pdf (1026648 bytes) | 
    | GL0B3  (= 0B3) | General Electric | v`° | GL874.pdf (1026648 bytes) | 
    | GL0C3 (= 0C3) | General Electric | v`° | GL874.pdf (1026648 bytes) | 
    | GL0D3 (= 0D3) | General Electric | v`° | GL874.pdf (1026648 bytes) | 
    | GL1 | Ferranti | THY | GL1.pdf (105282 bytes) | 
    | GL1P29 | General Electric | PHT° | GL1P29.pdf (503815 bytes) | 
    | GL2050   | General Electric | THY | GL2050.pdf (576111 bytes) | 
    | GL2051 | General Electric | THY | GL2051.pdf (570025 bytes) | 
    | GL207 | General Electric | T~ | GL207.pdf (740268 bytes) | 
    | GL2H21 | General-Electric | PHA | GL-2H21.pdf (328989 bytes) | 
    | GL393A | General Electric | THY | GL393A.pdf (600310 bytes) | 
    | GL3C23 | General Electric | THY | GL3C23.pdf (584840 bytes) | 
    | GL411 | General Electric | R | GL411.pdf (535810 bytes) | 
    | GL414 | General Electric | THY | GL414.pdf (565831 bytes) | 
    | GL427 | General Electric | IGN | GL427.pdf (520774 bytes) | 
    | GL441 | General Electric | PHT | GL441.pdf (505841 bytes) | 
    | GL502A   | General Electric | THY | GL502A.pdf (509935 bytes) | 
    | GL51025 | General Electric | T~ | GL51025.pdf (560875 bytes) | 
    | GL51038 | General Electric | Q~ | GL51038.pdf (636995 bytes) | 
    | GL51064 | General Electric | Q~ | GL51064.pdf (600359 bytes) | 
    | GL51065 | General Electric | Q~ | GL51065.pdf (567333 bytes) | 
    | GL546 | General Electric | THY | GL546.pdf (506151 bytes) | 
    | GL5518 | General Electric | T~ | GL5518.pdf (486056 bytes) | 
    | GL5545 (= 3G/501A) | STC | THY | 3G-501A.pdf (276423 bytes) | 
    | GL5654 | General Electric | p | 5654.pdf (595057 bytes) | 
    | GL5670 | General Electric | tt | 5670.pdf (651848 bytes) | 
    | GL5686 | General Electric | P | 5686.pdf (698078 bytes) | 
    | GL5725 | General Electric | p | 5725.pdf (660561 bytes) | 
    | GL5726 | General Electric | dd | 5726.pdf (547826 bytes) | 
    | GL5727 | General Electric | THY | 5727.pdf (772493 bytes) | 
    | GL5749 | General Electric | p | 5749.pdf (639553 bytes) | 
    | GL5750 | General Electric | H | 5750.pdf (646747 bytes) | 
    | GL5751 | General Electric | tt | 5751.pdf (646925 bytes) | 
    | GL5814 | General Electric | tt | 5814.pdf (694223 bytes) | 
    | GL5820 | General Electric | ORT | GL5820.pdf (1214342 bytes) | 
    | GL5899 | General Electric | p | 5899.pdf (287439 bytes) | 
    | GL5973 | General Electric | R | GL5973.pdf (543323 bytes) | 
    | GL6005 | General Electric | P | 6005.pdf (668192 bytes) | 
    | GL6072 | General Electric | tt | 6072.pdf (540328 bytes) | 
    | GL6087 | General Electric | rr | 6087.pdf (1153314 bytes) | 
    | GL6134 | General Electric | p | 6134.pdf (333541 bytes) | 
    | GL6135 | General Electric | t | 6135.pdf (637822 bytes) | 
    | GL6136 | General Electric | p | 6136.pdf (614946 bytes) | 
    | GL6137 | General Electric | p | 6137.pdf (499749 bytes) | 
    | GL6201 | General Electric | tt | 6201.pdf (700337 bytes) | 
    | GL6202 | General Electric | rr | 6202.pdf (419050 bytes) | 
    | GL6203 | General Electric | rr | 6203.pdf (431937 bytes) | 
    | GL6251 | General Electric | Q~ | GL6251.pdf (328451 bytes) | 
    | GL6283 | General Electric | Q~ | GL6283.pdf (569251 bytes) | 
    | GL6848 | General Electric | Q~ | GL6848.pdf (488460 bytes) | 
    | GL6849 | General Electric | ORT | GL6849.pdf (510695 bytes) | 
    | GL6942 | General Electric | Q~ | GL6942.pdf (2919848 bytes) | 
    | GL7038 | RMA/EIA | VIC | GL8511.pdf (529481 bytes) | 
    | GL7171   | General Electric | IGN | GL7171.pdf (245666 bytes) | 
    | GL7226 | RMA/EIA | VIC | GL8511.pdf (529481 bytes) | 
    | GL7262a | RMA/EIA | VIC | GL8511.pdf (529481 bytes) | 
    | GL7263a | RMA/EIA | VIC | GL8511.pdf (529481 bytes) | 
    | GL7293 | General Electric | ORT | GL7293.pdf (267223 bytes) | 
    | GL7325 | RMA/EIA | VIC | GL8511.pdf (529481 bytes) | 
    | GL7390 | General Electric | THY | GL7390.pdf (220496 bytes) | 
    | GL7399 | General Electric | Q~ | GL7399.pdf (534005 bytes) | 
    | GL7409 | General Electric | ORT | GL7409.pdf (1581691 bytes) | 
    | GL7538 | General Electric | ORT | GL7409.pdf (1581691 bytes) | 
    | GL7629 | General Electric | ORT | GL7629.pdf (447846 bytes) | 
    | GL7697 | RMA/EIA | VIC | GL8511.pdf (529481 bytes) | 
    | GL7703 | General Electric | IGN | GL7703.pdf (150163 bytes) | 
    | GL7735a | RMA/EIA | VIC | GL8511.pdf (529481 bytes) | 
    | GL7967 | General Electric | ORT | Z7806.pdf (882900 bytes) | 
    | GL7969 | General Electric | ORT | Z7807.pdf (1473861 bytes) | 
    | GL7985 | General Electric | Q~ | GL7985.pdf (503035 bytes) | 
    | GL8002 | General Electric | T~ | GL8002.pdf (786505 bytes) | 
    | GL8008 | General Electric | R° | GL8008.pdf (335156 bytes) | 
    | GL8020   | General Electric | R | GL8020.pdf (534346 bytes) | 
    | GL807 | General Electric | P~ | GL807.pdf (722651 bytes) | 
    | GL810 | General Electric | T~ | GL810.pdf (724409 bytes) | 
    | GL833A | General Electric | T~ | GL833A.pdf (751870 bytes) | 
    | GL8500 | General Electric | Q~ | GL8500.pdf (830446 bytes) | 
    | GL8500 | RMA/EIA | Q~ | GL8500.pdf (346395 bytes) | 
    | GL8507 | RMA/EIA | VIC | GL8507.pdf (322756 bytes) | 
    | GL851 | General Electric | T~ | GL851.pdf (661017 bytes) | 
    | GL8511 | RMA/EIA | VIC | GL8511.pdf (529481 bytes) | 
    | GL8513 | General Electric | Q~ | GL8513.pdf (372490 bytes) | 
    | GL8541 | RMA/EIA | VIC | GL8507.pdf (322756 bytes) | 
    | GL8559 | RMA/EIA | THY | GL8559.pdf (23483 bytes) | 
    | GL857B | General Electric | R° | GL857B.pdf (508865 bytes) | 
    | GL862A | General Electric | T~ | GL862A.pdf (802600 bytes) | 
    | GL866A | General Electric | R° | GL866A.pdf (500879 bytes) | 
    | GL868 | General Electric | PHT° | GL868.pdf (512554 bytes) | 
    | GL869B | General Electric | R° | GL869B.pdf (505019 bytes) | 
    | GL872A | General Electric | R° | GL872A.pdf (505669 bytes) | 
    | GL874 | General Electric | v`° | GL874.pdf (1026648 bytes) | 
    | GL880 | General Electric | T~ | GL880.pdf (651375 bytes) | 
    | GL884 | General Electric | THY | GL884.pdf (562599 bytes) | 
    | GL885 | General Electric | THY | GL885.pdf (548357 bytes) | 
    | GL8866 | General Electric | Q~ | GL8866.pdf (423143 bytes) | 
    | GL889A | General Electric | T~ | GL889A.pdf (785376 bytes) | 
    | GL891 | General Electric | T~ | GL891.pdf (857646 bytes) | 
    | GL892 | General Electric | T~ | GL892.pdf (836514 bytes) | 
    | GL893A | General Electric | T~ | GL893A.pdf (835642 bytes) | 
    | GL917 | General Electric | PHT | GL917.pdf (519673 bytes) | 
    | GL918   | General Electric | PHT° | GL918.pdf (507914 bytes) | 
    | GL919 | General Electric | PHT | GL919.pdf (522196 bytes) | 
    | GL920 | General Electric | PHT° | GL920.pdf (476376 bytes) | 
    | GL921 | General Electric | PHT° | GL921.pdf (507129 bytes) | 
    | GL922 | General Electric | PHT | GL922.pdf (492357 bytes) | 
    | GL923 | General Electric | PHT° | GL923.pdf (499415 bytes) | 
    | GL927 | General Electric | PHT° | GL927.pdf (497848 bytes) | 
    | GL929 | General Electric | PHT | GL929.pdf (498277 bytes) | 
    | GL930 | General Electric | PHT° | GL930.pdf (502669 bytes) | 
    | GL931A | General Electric | PHM | GL931A.pdf (588062 bytes) | 
    | Gle10000/025/1 | Siemens | R° | Gle10000-025-1.pdf (140288 bytes) (de) | 
    | Gle13000/1.5/6 | Siemens | R° | Gle13000-1-5-6.pdf (137040 bytes) (de) | 
    | Gle15000/1.5/6 | Siemens | R° | Gle15000-1-5-6.pdf (136288 bytes) (de) | 
    | Gle15000/3/12 | Siemens | R° | Gle15000-3-12.pdf (173978 bytes) (de) | 
    | Gle20000/2.5/10 | Siemens | R° | Gle20000-2-5-10.pdf (133188 bytes) (de) | 
    | GM100A   100   | Electronintorg | T~ | GM100A.pdf (209645 bytes) | 
    | GM100B   100   | Electronintorg | T~ | GM100B.pdf (207194 bytes) | 
    | GM100   100 | Electronintorg | T~ | GM100.pdf (135114 bytes) | 
    | GM1A   1   | Electronintorg | T~ | GM1A.pdf (167113 bytes) | 
    | GM1P   1   | Electronintorg | T~ | GM1P.pdf (185612 bytes) | 
    | GM2A   2   | Electronintorg | T~ | GM2A.pdf (161604 bytes) | 
    | GM2B   2   | Electronintorg | T~ | GM2B.pdf (163063 bytes) | 
    | GM3A   3   | Electronintorg | T~ | GM3A.pdf (150945 bytes) | 
    | GM3B   3   | Electronintorg | T~ | GM3B.pdf (156430 bytes) | 
    | GM3P   3   | Electronintorg | T~ | GM3P.pdf (167639 bytes) | 
    | GM4B   4   | Electronintorg | Q~ | GM4B.pdf (259531 bytes) | 
    | GM5B   5   | Electronintorg | T~ | GM5B.pdf (142544 bytes) | 
    | GM70   70   | Electronintorg | T~ | GM70.pdf (159174 bytes) | 
    | GM70   70 | Soviet | T~ | GM70.pdf (20142 bytes) | 
    | GMI10    10 | Electronintorg | Q~ | GMI10.pdf (215574 bytes) | 
    | GMI14B    14   | Electronintorg | Q~ | GMI14B.pdf (200718 bytes) | 
    | GMI16R    16   | Electronintorg | P~ | GMI16R.pdf (220405 bytes) | 
    | GMI19B    19   | Electronintorg | Q~ | GMI19B.pdf (319430 bytes) | 
    | GMI2B    2     | Electronintorg | Q~ | GMI2B.pdf (242235 bytes) | 
    | GMI30    30 | Electronintorg | T~ | GMI30.pdf (162043 bytes) | 
    | GMI32B-1    32  -1 | Electronintorg | Q~ | GMI32B-1.pdf (275227 bytes) | 
    | GMI32B    32   | Electronintorg | Q~ | GMI32B.pdf (277447 bytes) | 
    | GMI34A    34   | Electronintorg | T~ | GMI34A.pdf (203898 bytes) | 
    | GMI34B    34   | Electronintorg | T~ | GMI34B.pdf (174452 bytes) | 
    | GMI37A    37   | Electronintorg | T~ | GMI37A.pdf (181395 bytes) | 
    | GMI41A    41   | Electronintorg | INJ | GMI41A.pdf (184565 bytes) | 
    | GMI42B    42   | Electronintorg | T~ | GMI42B.pdf (179925 bytes) | 
    | GMI42B    42   | Svetlana | T~ | GMI42B.pdf (113181 bytes) | 
    | GMI46B    46   | Electronintorg | T~ | GMI46B.pdf (172453 bytes) | 
    | GMI47A    47   | Electronintorg | T | GMI47A.pdf (117441 bytes) | 
    | GMI5    5 | Electronintorg | Q~ | GMI5.pdf (270749 bytes) | 
    | GMI6-1    6-1 | Electronintorg | QQ~ | GMI6-1.pdf (262036 bytes) | 
    | GMI6    6 | Electronintorg | QQ~ | GMI6.pdf (241310 bytes) | 
    | GMI7-1    7-1 | Electronintorg | Q~ | GMI7-1.pdf (255433 bytes) | 
    | GMI83V    83     | Electronintorg | Q~ | GMI83V.pdf (214855 bytes) | 
    | GMI90    90     | Electronintorg | Q~ | GMI90.pdf (128797 bytes) | 
    | GN1 | Lorenz | CDT`° | GN1.pdf (44094 bytes) (de) | 
    | GN10 | Ferranti | Q`° | GN10.pdf (126069 bytes) | 
    | GN2 | Lorenz | CDT`° | GN2.pdf (37246 bytes) (de) | 
    | GN20 | Ferranti | Q`° | GN20.pdf (70965 bytes) | 
    | GN3 | Lorenz | CDT`° | GN3.pdf (32083 bytes) (de) | 
    | GN4 | Lorenz | CDT`° | GN4.pdf (35371 bytes) (de) | 
    | GN5 | Lorenz | CDT`° | GN5.pdf (44568 bytes) (de) | 
    | GN5A | Lorenz | CDT`° | GN5.pdf (44568 bytes) (de) | 
    | GN6 | Lorenz | CDT`° | GN6.pdf (35809 bytes) (de) | 
    | GNW-S18A-model2729 (= 7154) | RogerWhiteElectronDevices |  | 7154.pdf (71345 bytes) | 
    | GP5   5   | Svetlana | T | GP5.pdf (35652 bytes) | 
    | GPE175M | Ericsson Telephones Ltd | TRI`° | GPE175M.pdf (171731 bytes) | 
    | GR10A | Ericsson Telephones Ltd | DRT`° | GR10A.pdf (62104 bytes) | 
    | GR10G | Ericsson Telephones Ltd | CDT`° | GR10G.pdf (110915 bytes) | 
    | GR10H | Ericsson Telephones Ltd | CDT`° | GR10H.pdf (105277 bytes) | 
    | GR10J | Ericsson Telephones Ltd | CDT`° | GR10J.pdf (117293 bytes) | 
    | GR10K | Ericsson Telephones Ltd | CDT`° | GR10K.pdf (117632 bytes) | 
    | GR10M | Ericsson Telephones Ltd | CDT`° | GR10M.pdf (136101 bytes) | 
    | GR10W | Ericsson Telephones Ltd | CDT`° | GR10W.pdf (104314 bytes) | 
    | GR12G | Ericsson Telephones Ltd | CDT`° | GR12G.pdf (134432 bytes) | 
    | GR12H | Ericsson Telephones Ltd | CDT`° | GR12G.pdf (134432 bytes) | 
    | GR15 | Cerberus | RYV`° | GR15.pdf (226193 bytes) | 
    | GR16     | Cerberus | TRI`° | GR16.pdf (284707 bytes) | 
    | GR17 | Cerberus | RYV`° | GR17.pdf (210602 bytes) | 
    | GR20 | Cerberus | RYV`° | GR20.pdf (130713 bytes) | 
    | GR2G | Ericsson Telephones Ltd | CDT`° | GR2G.pdf (95285 bytes) | 
    | GR2H | Ericsson Telephones Ltd | CDT`° | GR2H.pdf (98641 bytes) | 
    | GR31 | Cerberus | RYV`° | GR31.pdf (242421 bytes) | 
    | GR32 | Cerberus | RYV`° | GR32.pdf (287360 bytes) | 
    | GR33 | Cerberus | RYV`° | GR33.pdf (182556 bytes) | 
    | GR41   | Cerberus | TRI'° | GR41.pdf (264361 bytes) | 
    | GR43 | Cerberus | TRI'° | GR43.pdf (193523 bytes) | 
    | GR44   | Cerberus | TRI'° | GR44.pdf (233724 bytes) | 
    | GR46 | Cerberus | RYV`° | GR46.pdf (162857 bytes) | 
    | GR4G | Ericsson Telephones Ltd | CDT`° | GR4G.pdf (102114 bytes) | 
    | GR7M | Ericsson Telephones Ltd | CDT`° | GR7M.pdf (83149 bytes) | 
    | GRD7 | Ferranti | GRD | GRD7.pdf (168423 bytes) | 
    | GRS251 | RFT | R | GRS251.pdf (5069807 bytes) (de) | 
    | GS10C/S | Ericsson Telephones Ltd | DCT`° | GS10C-S.pdf (72581 bytes) | 
    | GS10D | Ericsson Telephones Ltd | DCT`° | GS10D.pdf (150763 bytes) | 
    | GS10H | Ericsson Telephones Ltd | DCT`° | GS10H.pdf (143004 bytes) | 
    | GS11/130 | Cerberus | SWD`° | G11.pdf (204610 bytes) | 
    | GS11/155 | Cerberus | SWD`° | G11.pdf (204610 bytes) | 
    | GS11/220 | Cerberus | SWD`° | G11.pdf (204610 bytes) | 
    | GS11   11 | Electronintorg | T~ | GS11.pdf (205469 bytes) | 
    | GS12D | Ericsson Telephones Ltd | CNT`° | GS12D.pdf (75069 bytes) | 
    | GS13   13 | Soviet | T~ | GS13.pdf (763058 bytes) | 
    | GS14   14 | Electronintorg | T~ | GS14.pdf (211371 bytes) | 
    | GS15B   15   | Electronintorg | T~ | GS15B.pdf (240160 bytes) | 
    | GS17B   17   | Electronintorg | Q~ | GS17B.pdf (270278 bytes) | 
    | GS23B   23   | Electronintorg | Q~ | GS23B.pdf (257864 bytes) | 
    | GS24B   24   | Electronintorg | T~ | GS24B.pdf (209414 bytes) | 
    | GS27B   27   | Electronintorg | Q~ | GS27B.pdf (155106 bytes) | 
    | GS30   30 | Electronintorg | T~ | GS30.pdf (231499 bytes) | 
    | GS31B   31   | Electronintorg | T~ | GS31B.pdf (237833 bytes) | 
    | GS35B   35   | Electronintorg | T~ | GS35B.pdf (179612 bytes) | 
    | GS36B   36   | Electronintorg | Q~ | GS36B.pdf (394964 bytes) | 
    | GS37   37 | Electronintorg | T~ | GS37.pdf (203447 bytes) | 
    | GS3A   3   | Electronintorg | Q~ | GS3A.pdf (170031 bytes) | 
    | GS3B   3   | Electronintorg | Q~ | GS3B.pdf (176302 bytes) | 
    | GS90B   90   | Electronintorg | T~ | GS9B.pdf (280355 bytes) | 
    | GS9B   9   | Electronintorg | T~ | GS9B.pdf (280355 bytes) | 
    | GSA10G | Ericsson Telephones Ltd | DCT`° | GCA10G.pdf (232230 bytes) | 
    | GT1 | Osram | THY | GT1.pdf (147465 bytes) | 
    | GT1A | Osram | THY | GT1A.pdf (107969 bytes) | 
    | GT1C | Marconi | THY | GT1C.pdf (66067 bytes) | 
    | GT21 | Cerberus | THY`° | GT21.pdf (247501 bytes) | 
    | GT4A | Mullard | TRI° | GT4A.pdf (89041 bytes) | 
    | GT4H | Mullard | TRI° | GT4H.pdf (17681 bytes) | 
    | GTE120Y | Ericsson Telephones Ltd | TRI`° | GTE120Y.pdf (72265 bytes) | 
    | GTE130T | Ericsson Telephones Ltd | TRI`° | GTE130T.pdf (117526 bytes) | 
    | GTE175M | Ericsson Telephones Ltd | TRI`° | GTE175M.pdf (209663 bytes) | 
    | GTR120A/S | Ericsson Telephones Ltd | v`° | GTR120A-S.pdf (52777 bytes) | 
    | GTR120W | Ericsson Telephones Ltd | TRI`° | GTR120W.pdf (107416 bytes) | 
    | GTR150M/S | Ericsson Telephones Ltd | v`° | GTR150M-S.pdf (49901 bytes) | 
    | GTR150W | Ericsson Telephones Ltd | v`° | GTR150W.pdf (55268 bytes) | 
    | GTR75M | Ericsson Telephones Ltd | v`° | GTR75M.pdf (40193 bytes) | 
    | GTR83W | Ericsson Telephones Ltd | v`° | GTR83W.pdf (54263 bytes) | 
    | GTR83X | Ericsson Telephones Ltd | v`° | GTR83X.pdf (45193 bytes) | 
    | GTR95M/S | Ericsson Telephones Ltd | v`° | GTR95M-S.pdf (49994 bytes) | 
    | GU1 | Marconi | R° | U14.pdf (57251 bytes) | 
    | GU1 | Osram | R° | GU1.pdf (139407 bytes) | 
    | GU1 | Marconi | R° | U18.pdf (95765 bytes) | 
    | GU10A   10   | Electronintorg | T~ | GU10A.pdf (114052 bytes) | 
    | GU10B   10   | Electronintorg | T~ | GU10B.pdf (115858 bytes) | 
    | GU11 | Marconi | R° | GU11.pdf (180170 bytes) | 
    | GU13   13 | Electronintorg | P~ | GU13.pdf (239255 bytes) | 
    | GU17   17       | Electronintorg | PP~ | GU17.pdf (153037 bytes) | 
    | GU19-1   19-1 | Electronintorg | PP~ | GU19-1.pdf (218690 bytes) | 
    | GU20/21 | Marconi | R° | GU20-21.pdf (121331 bytes) | 
    | GU21B   21   | Electronintorg | T~ | GU21B.pdf (123802 bytes) | 
    | GU22A   22   | Electronintorg | T~ | GU22A.pdf (125115 bytes) | 
    | GU23A   23   | Electronintorg | T~ | GU23A.pdf (119436 bytes) | 
    | GU23B   23   | Electronintorg | T~ | GU23B.pdf (122170 bytes) | 
    | GU29   29   | Electronintorg | PP~ | GU29.pdf (132334 bytes) | 
    | GU32B   32   | Electronintorg | PP~ | GU32B.pdf (129258 bytes) | 
    | GU32   32 | Electronintorg | qq~ | GU32.pdf (134137 bytes) | 
    | GU32   32 | Lamina | qq~ | GU32.pdf (624579 bytes) (pl) | 
    | GU33A   33   | Electronintorg | Q~ | GU33A.pdf (209200 bytes) | 
    | GU33B   33   | Electronintorg | Q~ | GU33B.pdf (182632 bytes) | 
    | GU34B-1   34  -1 | Electronintorg | Q~ | GU34B-1.pdf (184703 bytes) | 
    | GU34B   34   | Electronintorg | Q~ | GU34B.pdf (178308 bytes) | 
    | GU36B-1   36  -1 | Electronintorg | Q~ | GU36B-1.pdf (197200 bytes) | 
    | GU39A-1   39  -1 | Electronintorg | Q~ | GU39A-1.pdf (304171 bytes) | 
    | GU39B-1   39  -1 | Electronintorg | Q~ | GU39B-1.pdf (310132 bytes) | 
    | GU39P-1   39  -1 | Electronintorg | Q~ | GU39P-1.pdf (319677 bytes) | 
    | GU43A   43   | Electronintorg | Q~ | GU43A.pdf (180224 bytes) | 
    | GU43B   43   | Electronintorg | Q~ | GU43B.pdf (191869 bytes) | 
    | GU44A   44   | Electronintorg | Q~ | GU44A.pdf (210834 bytes) | 
    | GU44B   44   | Electronintorg | Q~ | GU44B.pdf (217596 bytes) | 
    | GU45A   45   | Electronintorg | T~ | GU45A.pdf (121811 bytes) | 
    | GU46   46 | Electronintorg | P~ | GU46.pdf (239332 bytes) | 
    | GU47A   47   | Electronintorg | Q~ | GU47A.pdf (296628 bytes) | 
    | GU47B   47     | Electronintorg | Q~ | GU47B.pdf (223546 bytes) | 
    | GU48   48 | Electronintorg | T~ | GU48.pdf (100595 bytes) | 
    | GU4A   4   | Electronintorg | T~ | GU4A.pdf (126666 bytes) | 
    | GU5 | Osram | R° | GU1.pdf (139407 bytes) | 
    | GU5 | Marconi | R° | U18.pdf (95765 bytes) | 
    | GU50 | Osram | R° | GU50.pdf (89422 bytes) | 
    | GU50   50     | Electronintorg | P~ | GU50.pdf (161755 bytes) | 
    | GU50   50 | Lamina | P~ | GU50.pdf (506809 bytes) (pl) | 
    | GU53A   53   | Electronintorg | Q~ | GU53A.pdf (277874 bytes) | 
    | GU53B   53   | Electronintorg | Q~ | GU53B.pdf (289227 bytes) | 
    | GU56   56 | Electronintorg | T~ | GU56.pdf (162795 bytes) | 
    | GU5A   5   | Electronintorg | T~ | GU5A.pdf (189928 bytes) | 
    | GU5B   5   | Electronintorg | T~ | GU5B.pdf (193433 bytes) | 
    | GU61B   61   | Electronintorg | Q~ | GU61B.pdf (224604 bytes) | 
    | GU61P   61   | Electronintorg | Q~ | GU61P.pdf (391819 bytes) | 
    | GU62A   62   | Electronintorg | T~ | GU62A.pdf (176363 bytes) | 
    | GU63   63 | Electronintorg | PP~ | GU63.pdf (370590 bytes) | 
    | GU66A   66   | Electronintorg | T~ | GU66A.pdf (170348 bytes) | 
    | GU66B   66   | Electronintorg | T~ | GU66B.pdf (173839 bytes) | 
    | GU66P   66   | Electronintorg | T~ | GU66P.pdf (194867 bytes) | 
    | GU68A   68   | Electronintorg | T~ | GU68A.pdf (176616 bytes) | 
    | GU68P   68   | Electronintorg | T~ | GU68P.pdf (194354 bytes) | 
    | GU7 | Marconi | R° | GU7.pdf (129795 bytes) | 
    | GU70B   70   | Electronintorg | Q~ | GU70B.pdf (228216 bytes) | 
    | GU71B   71   | Electronintorg | P~ | GU71B.pdf (246877 bytes) | 
    | GU72   72 | Electronintorg | Q~ | GU72.pdf (243591 bytes) | 
    | GU73B   73   | Electronintorg | Q~ | GU73B.pdf (213761 bytes) | 
    | GU73P   73   | Electronintorg | Q~ | GU73P.pdf (247446 bytes) | 
    | GU74B   74   | Electronintorg | Q~ | GU74B.pdf (314655 bytes) | 
    | GU76B   76   | Electronintorg | Q~ | GU76B.pdf (240842 bytes) | 
    | GU78B   78   | Electronintorg | Q~ | GU78B.pdf (228055 bytes) | 
    | GU8 | Marconi | R° | GU8.pdf (128884 bytes) | 
    | GU80   80 | Soviet | P~ | GU80.pdf (120251 bytes) (ru) | 
    | GU81M   81     | Electronintorg | P~ | GU81M.pdf (236700 bytes) | 
    | GU81M   81   | Soviet | P~ | GU81M.pdf (335864 bytes) (ru) | 
    | GU81   81 | Lamina | P~ | GU81.pdf (579257 bytes) (pl) | 
    | GU84B   84   | Electronintorg | Q~ | GU84B.pdf (217932 bytes) | 
    | GU88A   88   | Electronintorg | T~ | GU88A.pdf (135847 bytes) | 
    | GU88P   88   | Electronintorg | T~ | GU88P.pdf (171510 bytes) | 
    | GU91B   91   | Electronintorg | Q~ | GU91B.pdf (269401 bytes) | 
    | GU92B   92   | Electronintorg | Q~ | GU92B.pdf (198121 bytes) | 
    | GU93B   93   | Electronintorg | Q~ | GU93B.pdf (208767 bytes) | 
    | GU94A   94   | Electronintorg | Q~ | GU94A.pdf (238794 bytes) | 
    | GU94P   94   | Electronintorg | Q~ | GU94P.pdf (188980 bytes) | 
    | GU96A   96   | Electronintorg | T~ | GU96A.pdf (207565 bytes) | 
    | GU96B   96   | Electronintorg | T~ | GU96B.pdf (208736 bytes) | 
    | GV5A1000 (= 8514) | Victoreen |  | 8514.pdf (31050 bytes) | 
    | GV5A1600 (= 8515) | Victoreen |  | 8515.pdf (30885 bytes) | 
    | GXU1 | Marconi | R° | GXU1.pdf (92374 bytes) | 
    | GXU2 | Marconi | R° | GXU2.pdf (84907 bytes) | 
    | GXU3 | Marconi | R° | GXU3.pdf (80453 bytes) | 
    | GY11 | RFT | R | GY11.pdf (63446 bytes) (de) | 
    | GY501   | Philips | R | GY501.pdf (105331 bytes) | 
    | GY501 | Mazda-Belvu | R | GY501.pdf (400080 bytes) (fr) | 
    | GY501 | Telefunken | R | GY501.pdf (239208 bytes) | 
    | GY802 | Mazda | R | GY802.pdf (129085 bytes) (fr) | 
    | GY86 | Mazda | R | GY86.pdf (176032 bytes) (fr) | 
    | GZ30     | Mullard | rr | GZ30.pdf (40435 bytes) | 
    | GZ32 | Mazda-Belvu | rr | GZ32.pdf (366562 bytes) (fr) | 
    | GZ32   | Philips | rr | GZ32.pdf (92572 bytes) | 
    | GZ32 | La Radiotechnique | rr | GZ32.pdf (55395 bytes) (fr) | 
    | GZ33 | Mullard | rr | GZ33.pdf (42809 bytes) | 
    | GZ34 | Philips | rr | GZ34.pdf (109363 bytes) | 
    | GZ34 | Mazda-Belvu | rr | GZ34.pdf (697620 bytes) (fr) | 
    | GZ34 | Philips | rr | GZ34.pdf (328187 bytes) | 
    | GZ34 (= 5AR4) | Amperex | rr | 5AR4.pdf (251425 bytes) | 
    | GZ34 | La Radiotechnique | rr | GZ34.pdf (114340 bytes) (fr) | 
    | GZ34 | Telefunken | rr | GZ34.pdf (158837 bytes) (de) | 
    | GZ34 | Mullard | rr | GZ34_Mullard.pdf (1212124 bytes) | 
    | GZ34S     | JJ | rr | GZ34S.pdf (214587 bytes) | 
    | GZ37 | ChelmerValve | rr | GZ37_PvW.pdf (122277 bytes) | 
    | GZ37 | Mullard | rr | GZ37.pdf (39448 bytes) | 
    | GZ40 | La Radiotechnique | rr | GZ40.pdf (33462 bytes) (fr) | 
    | GZ41 | Mazda-Belvu | rr | GZ41.pdf (70025 bytes) (fr) |