| Electron tube Type | Brand | System | Data sheet | 
    | 6983 | ElectronsInc | r | 6983.pdf (34082 bytes) | 
    | 6984 | ElectronsInc | THY | 6984.pdf (80334 bytes) | 
    | 6985 | ElectronsInc | THY | 6984.pdf (80334 bytes) | 
    | 6986 | ElectronsInc | THY | 6984.pdf (80334 bytes) | 
    | 6987 (= ELC6C) | Electrons Inc | THY | ELC6C.pdf (125013 bytes) | 
    | 6987 | ElectronsInc | THY | 6987.pdf (48850 bytes) | 
    | 6988 | ElectronsInc |  | 6988.pdf (46277 bytes) | 
    | 6989 | ElectronsInc | THY | 6989.pdf (57839 bytes) | 
    | 6990 | VacuumTubeProducts |  | 6990.pdf (138882 bytes) | 
    | 6991 | VacuumTubeProducts |  | 6991.pdf (142158 bytes) | 
    | 6992 | VacuumTubeProducts |  | 6992.pdf (123665 bytes) | 
    | 6993 | AntonElectronicsLabs |  | 6993.pdf (153944 bytes) | 
    | 6996 | FTR |  | 6996.pdf (160057 bytes) | 
    | 6997 | FTR |  | 6997.pdf (156217 bytes) | 
    | 6998 | Westinghouse |  | 6998.pdf (56935 bytes) | 
    | 6999 (= CK6999) | Raytheon | p | 6999.pdf (71867 bytes) | 
    | 6A2P 6  2   | Soviet | H | 6A2P.pdf (213911 bytes) | 
    | 6A2 | Shuguang | H | 6A2.pdf (151495 bytes) (zh) | 
    | 6A3 | Sylvania | T | 6A3.pdf (89214 bytes) (fr) | 
    | 6A3 | Tung-Sol | T | 6A3.pdf (48409 bytes) | 
    | 6A3P 6  3   | Soviet | p | 6A3P.pdf (266113 bytes) | 
    | 6A4 | RCA | P | 6A4.pdf (65142 bytes) | 
    | 6A4 | Sylvania | P | 6A4.pdf (66925 bytes) (fr) | 
    | 6A4LA | Sylvania | P | 6A4.pdf (66925 bytes) (fr) | 
    | 6A4LA | Tung-Sol | P | 6A4LA.pdf (38371 bytes) | 
    | 6A4P 6  4   | Soviet | H | 6A4P.pdf (221929 bytes) | 
    | 6A5G | Sylvania | T | 6A5G.pdf (63958 bytes) (fr) | 
    | 6A5G | Sylvania | T | 6A5G.pdf (45733 bytes) | 
    | 6A6 | RCA | TT | 6A6.pdf (40614 bytes) | 
    | 6A6 | Sylvania | TT | 6A6.pdf (86566 bytes) (fr) | 
    | 6A6 | Tung-Sol | TT | 6A6.pdf (102389 bytes) | 
    | 6A7 | RCA | H | 6A7.pdf (46004 bytes) | 
    | 6A7 | Sylvania | H | 6A7.pdf (199915 bytes) (fr) | 
    | 6A7 | Tung-Sol | H | 6A7.pdf (88082 bytes) | 
    | 6A7 | Brimar | H | 5Z3.pdf (44230 bytes) | 
    | 6A7E | Brimar | H | 5Z3.pdf (44230 bytes) | 
    | 6A7P | Shuguang | H | 6A7P.pdf (123445 bytes) (zh) | 
    | 6A7S | RCA (HB3) | H | 6A7S.pdf (159774 bytes) | 
    | 6A8 | RCA | H | 6A8.pdf (102211 bytes) | 
    | 6A8 | RCA | H | 6A8.pdf (76274 bytes) | 
    | 6A8 | RCA (HB3) | H | 6A7S.pdf (159774 bytes) | 
    | 6A8 | Sylvania | H | 6A8.pdf (67819 bytes) (fr) | 
    | 6A8 | Tung-Sol | H | 6A8.pdf (100552 bytes) | 
    | 6A8G | RCA (HB3) | H | 6A7S.pdf (159774 bytes) | 
    | 6A8G | Sylvania | H | 6A8.pdf (67819 bytes) (fr) | 
    | 6A8G   | Tung-Sol | H | 6A8.pdf (100552 bytes) | 
    | 6A8G | Brimar | H | 6A8G.pdf (60836 bytes) | 
    | 6A8GT | RCA (HB3) | H | 6A7S.pdf (159774 bytes) | 
    | 6A8GT | Hytron | H | 6A8GTX.pdf (438870 bytes) | 
    | 6A8GT | Sylvania | H | 1A5GT.pdf (90355 bytes) (fr) | 
    | 6A8GT | Tung-Sol | H | 6A8.pdf (100552 bytes) | 
    | 6A8GT | Brimar | H | 6A8G.pdf (60836 bytes) | 
    | 6A8GTX | Hytron | H | 6A8GTX.pdf (438870 bytes) | 
    | 6AB4  (= 6664) | RCA (HB3) | t | 6664.pdf (76558 bytes) | 
    | 6AB4   | RCA (HB3) | t | 6AB4.pdf (63295 bytes) | 
    | 6AB4 (= EC92) | La Radiotechnique | t | EC92.pdf (36339 bytes) (fr) | 
    | 6AB4   | General Electric | t | 6AB4.pdf (390363 bytes) | 
    | 6AB4 | Tung-Sol | t | 6AB4.pdf (106174 bytes) | 
    | 6AB4   | RCA (RC30) | t | 6AB4.pdf (283760 bytes) | 
    | 6AB5 | RCA (HB3) | ti | 6AB5.pdf (85710 bytes) | 
    | 6AB5 | Sylvania | ti | 6AB5.pdf (47804 bytes) (fr) | 
    | 6AB5 | Tung-Sol | ti | 6AB5.pdf (80951 bytes) | 
    | 6AB5 | Raytheon | ti | 6AB5.pdf (41461 bytes) | 
    | 6AB6G | Triad | tt | 6AB6G.pdf (173938 bytes) | 
    | 6AB7   | RCA (HB3) | p | 6AB7.pdf (174107 bytes) | 
    | 6AB7 | Sylvania | p | 6AB7.pdf (105616 bytes) (fr) | 
    | 6AB7 | Tung-Sol | p | 6AB7.pdf (331256 bytes) | 
    | 6AB8 (= ECL80) | Mazda-Belvu | tP | ECL80.pdf (673768 bytes) (fr) | 
    | 6AB8 (= ECL80) | Brimar | tP | ECL80.pdf (127866 bytes) | 
    | 6AB8 | Philips | tP | 6AB8.pdf (157290 bytes) | 
    | 6AB9 | RMA/EIA | qq | 6AB9.pdf (127305 bytes) | 
    | 6AC10 | General Electric | ttt | 6AC10.pdf (371903 bytes) | 
    | 6AC10 | RCA (RC30) | ttt | 6AB4.pdf (283760 bytes) | 
    | 6AC5G | RCA (HB3) | t | 6AC5GT.pdf (107601 bytes) | 
    | 6AC5G | Sylvania | t | 6AC5G.pdf (82563 bytes) (fr) | 
    | 6AC5G | Tung-Sol | t | 6AC5GT.pdf (83482 bytes) | 
    | 6AC5G | Triad | t | 6AC5G.pdf (79747 bytes) | 
    | 6AC5GT   | RCA (HB3) | t | 6AC5GT.pdf (107601 bytes) | 
    | 6AC5GT | Tung-Sol | t | 6AC5GT.pdf (83482 bytes) | 
    | 6AC5GT | Ken-Rad | t | 6AC5GT.pdf (41819 bytes) | 
    | 6AC6G | Triad | tt | 6AC6G.pdf (78795 bytes) | 
    | 6AC6GT | Hytron | tt | 6AC6GT.pdf (102933 bytes) | 
    | 6AC7   | RFT | p | 6AC7.pdf (81697 bytes) (de) | 
    | 6AC7 | General Electric | p | 6AC7.pdf (264551 bytes) | 
    | 6AC7 | Sylvania | p | 6AB7.pdf (105616 bytes) (fr) | 
    | 6AC7 | Tung-Sol | p | 6AC7.pdf (207959 bytes) | 
    | 6AC7GT | Hitachi | p | 6AC7GT.pdf (51074 bytes) | 
    | 6AC7k | RFT | p | 6AC7k.pdf (84285 bytes) (de) | 
    | 6AC9 | Sylvania | ddp | 6AC9.pdf (114155 bytes) | 
    | 6AD10   | RCA (RC30) | pP | 6AB4.pdf (283760 bytes) | 
    | 6AD10A | General Electric | pP | 6AD10A.pdf (861736 bytes) | 
    | 6AD4 | Sylvania | t | 6AD4.pdf (46153 bytes) | 
    | 6AD5G | Arcturus | t | 6AD5G.pdf (74714 bytes) | 
    | 6AD6G | RCA (HB3) | ii | 6AD6G.pdf (38529 bytes) | 
    | 6AD6G | Sylvania | ii | 6AF6G.pdf (79567 bytes) (fr) | 
    | 6AD6G | Tung-Sol | ii | 6AD6G.pdf (103217 bytes) | 
    | 6AD6G | NU | ii | 6AD6G.pdf (29450 bytes) | 
    | 6AD7G | RCA (HB3) | tP | 6AD7G.pdf (162011 bytes) | 
    | 6AD8 | Philips | ddp | 6AD8.pdf (103146 bytes) | 
    | 6AD8 | Philips | ddp | 6AD8.pdf (144624 bytes) | 
    | 6AE5G | Tung-Sol | t | 6AE5GT.pdf (107401 bytes) | 
    | 6AE5G | Triad | t | 25AC5GT-6AE5G.pdf (72922 bytes) | 
    | 6AE5GT | Tung-Sol | t | 6AE5GT.pdf (107401 bytes) | 
    | 6AE6G | Tung-Sol | tt | 6AE6G.pdf (114530 bytes) | 
    | 6AE6G | NU | tt | 6AE6G.pdf (28638 bytes) | 
    | 6AE7GT | RCA (HB3) | tt | 6AE7GT.pdf (54527 bytes) | 
    | 6AE8 | AWV | th | 6AE8.pdf (46647 bytes) | 
    | 6AF11 | RCA (HB3) | ttp | 6AF11.pdf (95796 bytes) | 
    | 6AF11 | General Electric | ttp | 6AF11.pdf (1000346 bytes) | 
    | 6AF11 | RCA (RC30) | ttp | 6AF9.pdf (503777 bytes) | 
    | 6AF3 | RCA (HB3) | R | 6AF3.pdf (67228 bytes) | 
    | 6AF3   | General Electric | R | 6AF3.pdf (167364 bytes) | 
    | 6AF3 | Tung-Sol | R | 6AF3.pdf (70838 bytes) | 
    | 6AF3 | RCA (RC30) | R | 6AB4.pdf (283760 bytes) | 
    | 6AF4 | RCA (HB3) | t | 6AF4.pdf (378917 bytes) | 
    | 6AF4 (= EC94) | RFT | t | EC94.pdf (84231 bytes) (de) | 
    | 6AF4 | General Electric | t | 6AF4.pdf (277993 bytes) | 
    | 6AF4 | Tung-Sol | t | 6AF4.pdf (100676 bytes) | 
    | 6AF4 | RCA (RC30) | t | 6AB4.pdf (283760 bytes) | 
    | 6AF4A       | RCA (HB3) | t | 6AF4A.pdf (399399 bytes) | 
    | 6AF4A | General Electric | t | 6AF4A.pdf (291929 bytes) | 
    | 6AF4A | Tung-Sol | t | 6AF4.pdf (100676 bytes) | 
    | 6AF4A | Brimar | t | 6AF4A.pdf (94293 bytes) | 
    | 6AF4A       | RCA (RC30) | t | 6AB4.pdf (283760 bytes) | 
    | 6AF5G | Sylvania | t | 6AF5G.pdf (49922 bytes) (fr) | 
    | 6AF5G | Tung-Sol | t | 6AF5G.pdf (36506 bytes) | 
    | 6AF6G       | RCA (HB3) | ii | 6AF6G.pdf (90291 bytes) | 
    | 6AF6G | Sylvania | ii | 6AF6G.pdf (79567 bytes) (fr) | 
    | 6AF6G | Tung-Sol | ii | 6AF6G.pdf (174466 bytes) | 
    | 6AF6G       | RCA (RC30) | ii | 6AB4.pdf (283760 bytes) | 
    | 6AF6G | RCA | ii | 6AF6G.pdf (132288 bytes) | 
    | 6AF7G | CompagniedesLampes | tii | 6AF7G.pdf (36951 bytes) | 
    | 6AF9 | RCA (RC30) | pP | 6AF9.pdf (503777 bytes) | 
    | 6AG11   | General Electric | ddtt | 6AG11.pdf (311732 bytes) | 
    | 6AG5 | RCA (HB3) | p | 6AG5.pdf (226952 bytes) | 
    | 6AG5   | General Electric | p | 6AG5.pdf (205967 bytes) | 
    | 6AG5 | Tung-Sol | p | 6AG5.pdf (138170 bytes) | 
    | 6AG5   | Sylvania | p | 6AG5.pdf (315522 bytes) | 
    | 6AG5 | RCA (RC30) | p | 6AF9.pdf (503777 bytes) | 
    | 6AG5WA (= 6186) | Tung-Sol | p | 6186.pdf (212706 bytes) | 
    | 6AG6G | Brimar | P | 6AG6G.pdf (59364 bytes) | 
    | 6AG6G | STC/Brimar | P | 6AG6G.pdf (27537 bytes) | 
    | 6AG7 | RCA (HB3) | P | 6AG7.pdf (257086 bytes) | 
    | 6AG7 | RFT | P | 6AG7.pdf (81138 bytes) (de) | 
    | 6AG7 | General Electric | P | 6AG7.pdf (434569 bytes) | 
    | 6AG7 | Tung-Sol | P | 6AG7.pdf (276087 bytes) | 
    | 6AG7 | RCA (RC30) | P | 6AF9.pdf (503777 bytes) | 
    | 6AG7 | RCA | P | 6AG7.pdf (541105 bytes) | 
    | 6AG7k | RFT | P | 6AG7k.pdf (86206 bytes) (de) | 
    | 6AG9 | General Electric | tp | 6AG9.pdf (484225 bytes) | 
    | 6AG9 | RCA (RC30) | tp | 6AF9.pdf (503777 bytes) | 
    | 6AH4GT | General Electric | t | 6AH4GT.pdf (246343 bytes) | 
    | 6AH4GT | Tung-Sol | t | 6AH4GT.pdf (68009 bytes) | 
    | 6AH4GT | Sylvania | t | 6AH4GT.pdf (265204 bytes) | 
    | 6AH5G | Philco | P | 6AH5G.pdf (64405 bytes) | 
    | 6AH6 | General Electric | p | 6AH6.pdf (327237 bytes) | 
    | 6AH6 | Tung-Sol | p | 6AH6.pdf (195048 bytes) | 
    | 6AH6S | CSF | p | 6AH6S.pdf (5878779 bytes) (fr) | 
    | 6AH6WA | Tung-Sol | p | 6AH6WA.pdf (336818 bytes) | 
    | 6AH6WA | Raytheon | p | 6AH6WA.pdf (595636 bytes) | 
    | 6AH7GT | Ken-Rad | tt | 6AH7GT.pdf (106238 bytes) | 
    | 6AH9 | General Electric | tp | 6AH9.pdf (477249 bytes) | 
    | 6AJ4 (= EC84) | RFT | t | EC84.pdf (97482 bytes) (de) | 
    | 6AJ5 | Tung-Sol | p | 6AJ5.pdf (149383 bytes) | 
    | 6AJ5   | Sylvania | p | 6AJ5.pdf (511114 bytes) | 
    | 6AJ7 | ResearchEnterprisesLtd | p | 6AJ7.pdf (69120 bytes) | 
    | 6AJ8 (= ECH81) | Mazda-Belvu | tH | ECH81.pdf (522127 bytes) (fr) | 
    | 6AJ8 (= ECH81) | RFT | tH | ECH81.pdf (188664 bytes) (de) | 
    | 6AJ8 | Hitachi | tH | 6AJ8.pdf (85372 bytes) | 
    | 6AJ8 | Philips | tH | 6AJ8.pdf (762509 bytes) | 
    | 6AK10 | General Electric | ttt | 6AK10.pdf (334031 bytes) | 
    | 6AK4 | Sylvania | t | 6AK4.pdf (240998 bytes) | 
    | 6AK5 | Mazda-Belvu | p | 6AK5.pdf (761678 bytes) (fr) | 
    | 6AK5 | RCA (HB3) | p | 6AK5.pdf (187238 bytes) | 
    | 6AK5 | Tung-Sol | p | 6AK5.pdf (104921 bytes) | 
    | 6AK5       | Sylvania | p | 6AK5.pdf (216152 bytes) | 
    | 6AK5 | RCA (RC30) | p | 6AF9.pdf (503777 bytes) | 
    | 6AK5W (= 5654) | Tung-Sol | p | 5654.pdf (250379 bytes) | 
    | 6AK5W (= 5654) | Tung-Sol | p | 5654.pdf (400264 bytes) | 
    | 6AK5W (= CK5654) | Raytheon | p | 5654.pdf (697978 bytes) | 
    | 6AK5W (= 5654) | CSF | p | 5654.pdf (6788411 bytes) (fr) | 
    | 6AK5W (= 5654) | Siemens | p | 5654.pdf (314754 bytes) (de) | 
    | 6AK6       | RCA (HB3) | P | 6AK6.pdf (194768 bytes) | 
    | 6AK6 | Tung-Sol | P | 6AK6.pdf (169869 bytes) | 
    | 6AK6 | Brimar | P | 6AK6.pdf (79493 bytes) | 
    | 6AK6       | RCA (RC30) | P | 6AF9.pdf (503777 bytes) | 
    | 6AK6S | Mazda-Belvu | P | 6AK6S.pdf (621513 bytes) (fr) | 
    | 6AK7 | ResearchEnterprisesLtd | P | 6AK7.pdf (97327 bytes) | 
    | 6AK8 (= EABC80) | Mazda-Belvu | dddt | EABC80.pdf (758651 bytes) (fr) | 
    | 6AK8 (= EABC80) | RFT | dddt | EABC80.pdf (152229 bytes) (de) | 
    | 6AK8 | Philips | dddt | 6AK8.pdf (391287 bytes) | 
    | 6AK9 | General Electric | ttP | 6AK9.pdf (675585 bytes) | 
    | 6AL11 | RCA (HB3) | pP | 6AL11.pdf (316461 bytes) | 
    | 6AL11 | Tung-Sol | pP | 6AL11.pdf (109158 bytes) | 
    | 6AL11 | RCA (RC30) | pP | 6AF9.pdf (503777 bytes) | 
    | 6AL3 | RCA (HB3) | R | 6AL3.pdf (50255 bytes) | 
    | 6AL3 | RCA (RC30) | R | 6AF9.pdf (503777 bytes) | 
    | 6AL3 | Rogers | R | 6AL3.pdf (38870 bytes) | 
    | 6AL5 | Mazda-Belvu | dd | 6AL5.pdf (461132 bytes) (fr) | 
    | 6AL5 | RCA (HB3) | dd | 6AL5.pdf (126871 bytes) | 
    | 6AL5 (= EAA91)   | RFT | dd | EAA91.pdf (85816 bytes) (de) | 
    | 6AL5 | General Electric | dd | 6AL5.pdf (257702 bytes) | 
    | 6AL5 | Tung-Sol | dd | 6AL5.pdf (100800 bytes) | 
    | 6AL5 | RCA (RC30) | dd | 6AF9.pdf (503777 bytes) | 
    | 6AL5W  (= 5726)   | Tung-Sol | dd | 5726.pdf (214010 bytes) | 
    | 6AL5W  (= 5726)   | Tung-Sol | dd | 5726.pdf (323318 bytes) | 
    | 6AL5W (= CK5726) | Raytheon | dd | 5726.pdf (492965 bytes) | 
    | 6AL5W (= 5726) | CSF | dd | 5726.pdf (4261791 bytes) (fr) | 
    | 6AL6G | Raytheon | P | 6AL6G.pdf (48920 bytes) | 
    | 6AL7GT     | General Electric | ii | 6AL7GT.pdf (164850 bytes) | 
    | 6AL9 | Sylvania | tP | 6AL9.pdf (484977 bytes) | 
    | 6AM4     | General Electric | t | 6AM4.pdf (283903 bytes) | 
    | 6AM4 | Tung-Sol | t | 6AM4.pdf (60924 bytes) | 
    | 6AM4 | Brimar | t | 6AM4.pdf (91183 bytes) | 
    | 6AM5 | AWV | P | 6AM5.pdf (66232 bytes) | 
    | 6AM5 | Brimar | P | 6AM5.pdf (42582 bytes) | 
    | 6AM6   | Brimar | p | 6AM6.pdf (115594 bytes) | 
    | 6AM6   | Brimar | p | 6AM6.pdf (112556 bytes) | 
    | 6AM6   | Brimar | p | 6AM6.pdf (3854931 bytes) | 
    | 6AM6S | CSF | p | 6AM6S.pdf (826234 bytes) (fr) | 
    | 6AM8 | Sylvania | dp | 6AM8.pdf (158088 bytes) | 
    | 6AM8 | Sylvania | dp | 6AM8.pdf (348292 bytes) | 
    | 6AM8A | RCA (HB3) | dp | 6AM8A.pdf (233221 bytes) | 
    | 6AM8A   | Sylvania | dp | 6AM8.pdf (158088 bytes) | 
    | 6AM8A | Tung-Sol | dp | 6AM8A.pdf (142280 bytes) | 
    | 6AM8A   | Sylvania | dp | 6AM8.pdf (348292 bytes) | 
    | 6AM8A | RCA (RC30) | dp | 6AM8A.pdf (264754 bytes) | 
    | 6AN4 | RCA (HB3) | t | 6AN4.pdf (62477 bytes) | 
    | 6AN4   | Sylvania | t | 6AN4.pdf (151060 bytes) | 
    | 6AN4 | Tung-Sol | t | 6AN4.pdf (161510 bytes) | 
    | 6AN5 | General Electric | P | 6AN5.pdf (203921 bytes) | 
    | 6AN5 | Tung-Sol | P | 6AN5.pdf (116732 bytes) | 
    | 6AN5WA       | Raytheon | P | 6AN5WA.pdf (798293 bytes) | 
    | 6AN5WA | CSF | P | 6AN5WA.pdf (5208803 bytes) (fr) | 
    | 6AN6 | Tung-Sol | dddd | 6AN6.pdf (72933 bytes) | 
    | 6AN6   | Sylvania | dddd | 6AN6.pdf (80477 bytes) | 
    | 6AN7 | Philips | th | 6AN7.pdf (430503 bytes) | 
    | 6AN7A | Philips | th | 6AN7A.pdf (724833 bytes) | 
    | 6AN8 | Toshiba | tp | 6AN8.pdf (187602 bytes) (jp) | 
    | 6AN8 | Sylvania | tp | 6AN8.pdf (194306 bytes) | 
    | 6AN8 | Tung-Sol | tp | 6AN8.pdf (75536 bytes) | 
    | 6AN8 | Sylvania | tp | 6AN8.pdf (484657 bytes) | 
    | 6AN8A     | RCA (HB3) | tp | 6AN8A.pdf (318262 bytes) | 
    | 6AN8A       | Sylvania | tp | 6AN8.pdf (194306 bytes) | 
    | 6AN8A | Tung-Sol | tp | 6AN8A.pdf (246510 bytes) | 
    | 6AN8A       | Sylvania | tp | 6AN8.pdf (484657 bytes) | 
    | 6AN8A     | RCA (RC30) | tp | 6AM8A.pdf (264754 bytes) | 
    | 6AQ4 (= EC91) | Philips | t | EC91.pdf (132077 bytes) | 
    | 6AQ4 | Mullard | t | 6AQ4.pdf (37694 bytes) | 
    | 6AQ5 | Mazda-Belvu | P | 6AQ5.pdf (400664 bytes) (fr) | 
    | 6AQ5 | General Electric | P | 6AQ5.pdf (608766 bytes) | 
    | 6AQ5 (= N727) | Marconi | P | N727.pdf (221150 bytes) | 
    | 6AQ5 | Tung-Sol | P | 6AQ5.pdf (211516 bytes) | 
    | 6AQ5 | Brimar | P | 6AQ5.pdf (49131 bytes) | 
    | 6AQ5 (= 6095) | JEDEC | P | 6095.pdf (83154 bytes) | 
    | 6AQ5A   | RCA (HB3) | P | 6AQ5A.pdf (166697 bytes) | 
    | 6AQ5A   | General Electric | P | 6AQ5A.pdf (526894 bytes) | 
    | 6AQ5A | Tung-Sol | P | 6AQ5.pdf (211516 bytes) | 
    | 6AQ5A   | RCA (RC30) | P | 6201.pdf (902849 bytes) | 
    | 6AQ5A   | RCA (RC30) | P | 6AM8A.pdf (264754 bytes) | 
    | 6AQ5L (= 6928) | LM Ericsson | P | 6928.pdf (2039379 bytes) | 
    | 6AQ5W (= 6005) | CSF | P | 6005.pdf (7327694 bytes) (fr) | 
    | 6AQ6 | Tung-Sol | ddt | 6AQ6.pdf (104721 bytes) | 
    | 6AQ6 | Sylvania | ddt | 6AQ6.pdf (273055 bytes) | 
    | 6AQ7GT   | General Electric | ddt | 6AQ7GT.pdf (209264 bytes) | 
    | 6AQ7GT | Tung-Sol | ddt | 6AQ7GT.pdf (161706 bytes) | 
    | 6AQ8 | RCA (RC30) | tt | 6AQ8.pdf (58228 bytes) | 
    | 6AQ8 | Rogers | tt | 6AQ8.pdf (446479 bytes) | 
    | 6AR11 | RCA (HB3) | pp | 6AR11.pdf (95040 bytes) | 
    | 6AR11 | General Electric | pp | 6AR11.pdf (427083 bytes) | 
    | 6AR11 | RCA (RC30) | pp | 6AR11.pdf (469509 bytes) | 
    | 6AR5 | RCA (HB3) | P | 6AR5.pdf (64276 bytes) | 
    | 6AR5 | Tung-Sol | P | 6AR5.pdf (172009 bytes) | 
    | 6AR6   | Tung-Sol | P | 6AR6.pdf (123720 bytes) | 
    | 6AR6 (= 6098) | JEDEC | P | 6098.pdf (75035 bytes) | 
    | 6AR6WA (= 6098)   | Tung-Sol | P | 6098.pdf (224335 bytes) | 
    | 6AR6WA (= 6098)   | Tung-Sol | P | 6098.pdf (212827 bytes) | 
    | 6AR7GT | AWV | ddp | 6AR7GT.pdf (184979 bytes) | 
    | 6AR7GT | AWV | ddp | 6AR7GT.pdf (60042 bytes) | 
    | 6AR8     | General Electric | BDT | 6AR8.pdf (524464 bytes) | 
    | 6AR8 | Tung-Sol | BDT | 6AR8.pdf (207911 bytes) | 
    | 6AS11 | RCA (HB3) | ttp | 6AS11.pdf (129025 bytes) | 
    | 6AS5 | General Electric | P | 6AS5.pdf (417409 bytes) | 
    | 6AS5 | Tung-Sol | P | 6AS5.pdf (174124 bytes) | 
    | 6AS5 | RCA (RC30) | P | 6AR11.pdf (469509 bytes) | 
    | 6AS6   | RCA (HB3) | p | 6AS6.pdf (403172 bytes) | 
    | 6AS6 | GE/Ken-Rad | p | 6AS6.pdf (303822 bytes) | 
    | 6AS6   | General Electric | p | 6AS6.pdf (303822 bytes) | 
    | 6AS6 | Tung-Sol | p | 6AS6.pdf (280564 bytes) | 
    | 6AS6W (= 5725) | Tung-Sol | p | 5725.pdf (382470 bytes) | 
    | 6AS6W (= 5725) | Tung-Sol | p | 5725.pdf (384542 bytes) | 
    | 6AS6W (= 5725) | Raytheon | p | 5725.pdf (1153004 bytes) | 
    | 6AS6W (= 5725) | CSF | p | 5725.pdf (6424250 bytes) (fr) | 
    | 6AS7 | Svetlana | TT | 6AS7.pdf (74033 bytes) | 
    | 6AS7G | RCA (HB3) | TT | 6AS7G.pdf (147923 bytes) | 
    | 6AS7G | Tung-Sol | TT | 6AS7G.pdf (272654 bytes) | 
    | 6AS7G | RCA (RC30) | TT | 6AR11.pdf (469509 bytes) | 
    | 6AS7GA   | General Electric | TT | 6AS7GA.pdf (212230 bytes) | 
    | 6AS7GA | Tung-Sol | TT | 6AS7GA.pdf (97213 bytes) | 
    | 6AS7GYB | GE |  | 6AS7GYB.pdf (78887 bytes) | 
    | 6AS8   | RCA (HB3) | dp | 6AS8.pdf (227446 bytes) | 
    | 6AS8   | Sylvania | dp | 6AS8.pdf (151962 bytes) | 
    | 6AS8 | Tung-Sol | dp | 6AS8.pdf (171984 bytes) | 
    | 6AS8   | RCA (RC30) | dp | 6AR11.pdf (469509 bytes) | 
    | 6AT6 | RCA (HB3) | ddt | 6AT6.pdf (143503 bytes) | 
    | 6AT6 | General Electric | ddt | 6AT6.pdf (425735 bytes) | 
    | 6AT6   | Tung-Sol | ddt | 6AT6.pdf (180530 bytes) | 
    | 6AT6 | Brimar | ddt | 6AT6.pdf (85755 bytes) | 
    | 6AT6 | Brimar | ddt | 6AT6.pdf (997765 bytes) | 
    | 6AT6 | RCA (RC30) | ddt | 6AR11.pdf (469509 bytes) | 
    | 6AT8 | Sylvania | tp | 6AT8.pdf (731748 bytes) | 
    | 6AT8A | RCA (HB3) | tp | 6AT8A.pdf (42288 bytes) | 
    | 6AT8A | Tung-Sol | tp | 6AT8A.pdf (414283 bytes) | 
    | 6AT8A | RCA (RC30) | tp | 6AR11.pdf (469509 bytes) | 
    | 6AU4GT | Sylvania | R | 6AU4GT.pdf (191311 bytes) | 
    | 6AU4GTA | RCA (HB3) | R | 6AU4GTA.pdf (94387 bytes) | 
    | 6AU4GTA | General Electric | R | 6AU4GTA.pdf (203647 bytes) | 
    | 6AU4GTA | Tung-Sol | R | 6AU4GTA.pdf (82368 bytes) | 
    | 6AU4GTA | Sylvania | R | 6AU4GT.pdf (191311 bytes) | 
    | 6AU4GTA | RCA (RC30) | R | 6AR11.pdf (469509 bytes) | 
    | 6AU5GT     | RCA (HB3) | P | 6AU5GT.pdf (227504 bytes) | 
    | 6AU5GT | Tung-Sol | P | 6AU5GT.pdf (137155 bytes) | 
    | 6AU5GT     | RCA (RC30) | P | 6AR11.pdf (469509 bytes) | 
    | 6AU6 | Mazda-Belvu | p | 6AU6.pdf (453518 bytes) (fr) | 
    | 6AU6 | Tung-Sol | p | 6AU6.pdf (199280 bytes) | 
    | 6AU6 | Mullard | p | 6AU6.pdf (293309 bytes) | 
    | 6AU6 | Brimar | p | 6AU6.pdf (100535 bytes) | 
    | 6AU6 | Brimar | p | 6AU6.pdf (2152497 bytes) | 
    | 6AU6A | RCA (HB3) | p | 6AU6A.pdf (393458 bytes) | 
    | 6AU6A | General Electric | p | 6AU6A.pdf (599730 bytes) | 
    | 6AU6A | Tung-Sol | p | 6AU6.pdf (199280 bytes) | 
    | 6AU6A | RCA (RC30) | p | 6AR11.pdf (469509 bytes) | 
    | 6AU6WA | Mazda-Belvu | p | 6AU6WA.pdf (794680 bytes) (fr) | 
    | 6AU6WA | Tung-Sol | p | 6AU6WA.pdf (283468 bytes) | 
    | 6AU6WA | CSF | p | 6AU6WA.pdf (7421877 bytes) (fr) | 
    | 6AU6WB | Mazda-Belvu | p | 6AU6WB.pdf (810096 bytes) (fr) | 
    | 6AU6WB | Tung-Sol | p | 6AU6WB.pdf (69301 bytes) | 
    | 6AU7 | Tung-Sol | tt | 6AU7.pdf (259297 bytes) | 
    | 6AU8 | Tung-Sol | tp | 6AU8.pdf (443924 bytes) | 
    | 6AU8A | RCA (HB3) | tp | 6AU8A.pdf (313940 bytes) | 
    | 6AU8A   | General Electric | tp | 6AU8A.pdf (808495 bytes) | 
    | 6AU8A | Tung-Sol | tp | 6AU8A.pdf (89577 bytes) | 
    | 6AU8A | RCA (RC30) | tp | 6AU8A.pdf (207747 bytes) | 
    | 6AV11     | General Electric | ttt | 6AV11.pdf (347772 bytes) | 
    | 6AV4 | CompagniedesLampes | rr | 6AV4.pdf (81345 bytes) | 
    | 6AV5GA   | General Electric | P | 6AV5GA.pdf (356672 bytes) | 
    | 6AV5GA | Tung-Sol | P | 6AV5GA.pdf (197166 bytes) | 
    | 6AV5GA   | Sylvania | P | 6AV5GA.pdf (427802 bytes) | 
    | 6AV5GA | RCA (RC30) | P | 6AU8A.pdf (207747 bytes) | 
    | 6AV5GT | Tung-Sol | P | 6AV5GT.pdf (191605 bytes) | 
    | 6AV5GT | Sylvania | P | 6AV5GA.pdf (427802 bytes) | 
    | 6AV6 | Mazda-Belvu | ddt | 6AV6.pdf (342728 bytes) (fr) | 
    | 6AV6   | RCA (HB3) | ddt | 6AV6.pdf (74153 bytes) | 
    | 6AV6   | General Electric | ddt | 6AV6.pdf (484527 bytes) | 
    | 6AV6 | Tung-Sol | ddt | 6AV6.pdf (259699 bytes) | 
    | 6AV6 | Brimar | ddt | 6AV6.pdf (63258 bytes) | 
    | 6AV6   | RCA (RC30) | ddt | 6AU8A.pdf (207747 bytes) | 
    | 6AV60 | Toshiba | KLY | 6AV60_Toshiba.pdf (1601903 bytes) | 
    | 6AW7GT | NU | ddt | 6AW7GT.pdf (30415 bytes) | 
    | 6AW8 | RCA (HB3) | tp | 6AW8.pdf (438286 bytes) | 
    | 6AW8A | RCA (HB3) | tp | 6AW8A.pdf (305106 bytes) | 
    | 6AW8A | General Electric | tp | 6AW8A.pdf (980634 bytes) | 
    | 6AW8A | Tung-Sol | tp | 6AW8A.pdf (177989 bytes) | 
    | 6AW8A | RCA (RC30) | tp | 6AW8A.pdf (603829 bytes) | 
    | 6AX3 | RCA (HB3) | R | 6AX3.pdf (58040 bytes) | 
    | 6AX3   | General Electric | R | 6AX3.pdf (171991 bytes) | 
    | 6AX3 | Tung-Sol | R | 6AX3.pdf (81734 bytes) | 
    | 6AX3 | RCA (RC30) | R | 6AW8A.pdf (603829 bytes) | 
    | 6AX4GT | RCA (HB3) | R | 6AX4GT.pdf (84318 bytes) | 
    | 6AX4GT | Tung-Sol | R | 6AX4GT.pdf (66067 bytes) | 
    | 6AX4GT | Sylvania | R | 6AX4GT.pdf (184924 bytes) | 
    | 6AX4GTA | Tung-Sol | R | 6AX4GTA.pdf (96288 bytes) | 
    | 6AX4GTB   | RCA (HB3) | R | 6AX4GTB.pdf (75405 bytes) | 
    | 6AX4GTB | General Electric | R | 6AX4GTB.pdf (172196 bytes) | 
    | 6AX4GTB | Tung-Sol | R | 6AX4GTB.pdf (79104 bytes) | 
    | 6AX5GT | RCA (HB3) | rr | 6AX5GT.pdf (429111 bytes) | 
    | 6AX5GT | Tung-Sol | rr | 6AX5GT.pdf (305083 bytes) | 
    | 6AX5GT | RCA (RC30) | rr | 6AW8A.pdf (603829 bytes) | 
    | 6AX6G | Tung-Sol | rr | 6AX6G.pdf (51295 bytes) | 
    | 6AX7 | Tung-Sol | tt | 6AX7.pdf (176519 bytes) | 
    | 6AX7 | Sylvania | tt | 12AX7.pdf (288086 bytes) | 
    | 6AX8 | RCA (HB3) | tp | 6AX8.pdf (85693 bytes) | 
    | 6AX8 | Tung-Sol | tp | 6AX8.pdf (96531 bytes) | 
    | 6AY11 | RCA (HB3) | ddtt | 6AY11.pdf (64935 bytes) | 
    | 6AY11     | General Electric | ddtt | 6AY11.pdf (362929 bytes) | 
    | 6AY3 | RCA (HB3) | R | 6AY3.pdf (415936 bytes) | 
    | 6AY3 | RCA | R | 6AY3.pdf (106065 bytes) | 
    | 6AY3A | Sylvania |  | 6AY3A.pdf (72719 bytes) | 
    | 6AY3B | RCA (HB3) | R | 6AY3B.pdf (59510 bytes) | 
    | 6AY3B | General Electric | R | 6AY3B.pdf (203030 bytes) | 
    | 6AY3B | RCA (RC30) | R | 6AW8A.pdf (603829 bytes) | 
    | 6AZ5 | Sylvania | rr | 6AZ5.pdf (98799 bytes) | 
    | 6AZ5 | Sylvania | rr | 6AZ5.pdf (90533 bytes) | 
    | 6AZ6 | NU | rr | 6AZ6.pdf (56783 bytes) | 
    | 6AZ8   | RCA (HB3) | tp | 6AZ8.pdf (483053 bytes) | 
    | 6AZ8 | Sylvania | tp | 6AZ8.pdf (167107 bytes) | 
    | 6AZ8 | Tung-Sol | tp | 6AZ8.pdf (410294 bytes) | 
    | 6AZ8 | Sylvania | tp | 6AZ8.pdf (592869 bytes) | 
    | 6AZ8   | RCA (RC30) | tp | 6AW8A.pdf (603829 bytes) | 
    | 6B10 | RCA (HB3) | ddtt | 6B10.pdf (91758 bytes) | 
    | 6B10 | General Electric | ddtt | 6B10.pdf (196265 bytes) | 
    | 6B10 | General Electric | ddtt | 6B10.pdf (449477 bytes) | 
    | 6B10 | RCA (RC30) | ddtt | 6AW8A.pdf (603829 bytes) | 
    | 6B21 | LewisElectronics |  | 6B21.pdf (69971 bytes) | 
    | 6B3 | CanadianWestinghouse | R | 6B3.pdf (64129 bytes) | 
    | 6B31 | Tesla | dd | 6B31.pdf (472820 bytes) (cs) | 
    | 6B32 | Tesla | dd | 6B31.pdf (472820 bytes) (cs) | 
    | 6B4G     | Sylvania | T | 6B4G.pdf (21593 bytes) (fr) | 
    | 6B4G   | Tung-Sol | T | 6B4G.pdf (60811 bytes) | 
    | 6B4G | Brimar | T | 6AU6.pdf (100535 bytes) | 
    | 6B5 | Sylvania | tT | 6B5.pdf (74686 bytes) (fr) | 
    | 6B5 | Tung-Sol | tT | 6B5.pdf (65804 bytes) | 
    | 6B5 | Triad | tT | 6B5.pdf (567572 bytes) | 
    | 6B6G | Tung-Sol | ddt | 6B6G.pdf (144474 bytes) | 
    | 6B7 | RCA | ddp | 6B7.pdf (74206 bytes) | 
    | 6B7 | RCA (HB3) | ddp | 6B7.pdf (201609 bytes) | 
    | 6B7 | Sylvania | ddp | 6B7.pdf (144728 bytes) (fr) | 
    | 6B7 | Tung-Sol | ddp | 6B7.pdf (76479 bytes) | 
    | 6B8 | RCA | ddp | 6B8.pdf (89953 bytes) | 
    | 6B8 | Sylvania | ddp | 6B8.pdf (68522 bytes) (fr) | 
    | 6B8 | Tung-Sol | ddp | 6B8.pdf (46608 bytes) | 
    | 6B8 | Ken-Rad | ddp | 6B8.pdf (36374 bytes) | 
    | 6B8G | Sylvania | ddp | 6B8.pdf (68522 bytes) (fr) | 
    | 6B8G | Tung-Sol | ddp | 6B8G.pdf (73461 bytes) | 
    | 6B8G | Brimar | ddp | 6B8G.pdf (61068 bytes) | 
    | 6B8G | Sylvania | ddp | 6B8G.pdf (39336 bytes) | 
    | 6B8GT | Tung-Sol | ddp | 6B8GT.pdf (44692 bytes) | 
    | 6B8GT | Brimar | ddp | 6B8G.pdf (61068 bytes) | 
    | 6B8P | Shuguang | ddp | 6B8P.pdf (221977 bytes) (zh) | 
    | 6BA11 | RCA (HB3) | tpp | 6BA11.pdf (92960 bytes) | 
    | 6BA11 | Sylvania | tpp | 6BA11.pdf (153450 bytes) | 
    | 6BA11 | Tung-Sol | tpp | 6BA11.pdf (300610 bytes) | 
    | 6BA11 | RCA (RC30) | tpp | 6BA8A.pdf (149116 bytes) | 
    | 6BA3 | RCA (HB3) | R | 6BA3.pdf (55123 bytes) | 
    | 6BA4 | Sylvania | t | 6BA4.pdf (115440 bytes) | 
    | 6BA5 | Sylvania | p | 6BA5.pdf (230919 bytes) | 
    | 6BA5 | Sylvania | p | 6BA5.pdf (45743 bytes) | 
    | 6BA6 | Mazda-Belvu | p | 6BA6.pdf (370134 bytes) (fr) | 
    | 6BA6   | RCA (HB3) | p | 6BA6.pdf (275425 bytes) | 
    | 6BA6     | General Electric | p | 6BA6.pdf (403442 bytes) | 
    | 6BA6 (= W727) | Marconi | p | W727.pdf (110500 bytes) | 
    | 6BA6 | Tung-Sol | p | 6BA6.pdf (247829 bytes) | 
    | 6BA6 | Brimar | p | 6BA6.pdf (84696 bytes) | 
    | 6BA6 | Brimar | p | 6BA6.pdf (1437274 bytes) | 
    | 6BA6   | RCA (RC30) | p | 6AW8A.pdf (603829 bytes) | 
    | 6BA6W (= 5749) | Tung-Sol | p | 5749.pdf (263373 bytes) | 
    | 6BA6W (= 5749) | Tung-Sol | p | 5749.pdf (416203 bytes) | 
    | 6BA6W (= 5749) | CSF | p | 5749.pdf (5736831 bytes) (fr) | 
    | 6BA7     | RCA (HB3) | H | 6BA7.pdf (275597 bytes) | 
    | 6BA7 | Tung-Sol | H | 6BA7.pdf (257108 bytes) | 
    | 6BA7     | RCA (RC30) | H | 6AW8A.pdf (603829 bytes) | 
    | 6BA8 | Sylvania | tP | 6BA8.pdf (141570 bytes) | 
    | 6BA8 | Tung-Sol | tP | 6BA8.pdf (101953 bytes) | 
    | 6BA8A | RCA (HB3) | tP | 6BA8A.pdf (311800 bytes) | 
    | 6BA8A   | Sylvania | tP | 6BA8.pdf (141570 bytes) | 
    | 6BA8A | Tung-Sol | tP | 6BA8A.pdf (160556 bytes) | 
    | 6BA8A   | Sylvania | tP | 6BA8A.pdf (568001 bytes) | 
    | 6BA8A | RCA (RC30) | tP | 6BA8A.pdf (149116 bytes) | 
    | 6BC32 | Tesla | ddt | 6BC32.pdf (688791 bytes) (cs) | 
    | 6BC4 | RCA (HB3) | t | 6BC4.pdf (179487 bytes) | 
    | 6BC4 | Tung-Sol | t | 6BC4.pdf (112163 bytes) | 
    | 6BC4 | RCA (RC30) | t | 6BC4.pdf (510539 bytes) | 
    | 6BC5   | RCA (HB3) | p | 6BC5.pdf (99307 bytes) | 
    | 6BC5   | Sylvania | p | 6BC5.pdf (198584 bytes) | 
    | 6BC5 | Tung-Sol | p | 6BC5.pdf (257837 bytes) | 
    | 6BC5   | Sylvania | p | 6BC5.pdf (612407 bytes) | 
    | 6BC5   | RCA (RC30) | p | 6BC4.pdf (510539 bytes) | 
    | 6BC7   | RCA (HB3) | ddd | 6BC7.pdf (72478 bytes) | 
    | 6BC7 | Tung-Sol | ddd | 6BC7.pdf (48727 bytes) | 
    | 6BC7 | Sylvania | ddd | 6BC7.pdf (151592 bytes) | 
    | 6BC8   | RCA (HB3) | tt | 6BC8.pdf (258151 bytes) | 
    | 6BC8   | Sylvania | tt | 6BC8.pdf (143891 bytes) | 
    | 6BC8 | Tung-Sol | tt | 6BC8.pdf (171008 bytes) | 
    | 6BC8   | Sylvania | tt | 6BC8.pdf (374695 bytes) | 
    | 6BC8   | RCA (RC30) | tt | 6BC4.pdf (510539 bytes) | 
    | 6BD11 | RCA (HB3) | ttp | 6BD11.pdf (102019 bytes) | 
    | 6BD11 | General Electric | ttp | 6BD11.pdf (969582 bytes) | 
    | 6BD4 | Sylvania | T | 6BD4.pdf (92286 bytes) | 
    | 6BD4 | Tung-Sol | T | 6BD4.pdf (135236 bytes) | 
    | 6BD4 | Brimar | T | 6BD4.pdf (52161 bytes) | 
    | 6BD4A | RCA (HB3) | T | 6BD4A.pdf (182839 bytes) | 
    | 6BD4A | Sylvania | T | 6BD4.pdf (92286 bytes) | 
    | 6BD4A | Sylvania | T | 6BD4A.pdf (278314 bytes) | 
    | 6BD5GT | Tung-Sol | P | 6BD5GT.pdf (52940 bytes) | 
    | 6BD6 | Tung-Sol | p | 6BD6.pdf (110468 bytes) | 
    | 6BD6 | Sylvania | p | 6BD6.pdf (89937 bytes) | 
    | 6BD7 | Philips | ddt | 6BD7.pdf (188230 bytes) | 
    | 6BE3 | RCA (HB3) | R | 6BE3.pdf (56788 bytes) | 
    | 6BE3   | General Electric | R | 6BE3.pdf (167244 bytes) | 
    | 6BE3   | General Electric | R | 6BE3.pdf (216207 bytes) | 
    | 6BE3 | Tung-Sol | R | 6BE3.pdf (63992 bytes) | 
    | 6BE3 | RCA (RC30) | R | 6BC4.pdf (510539 bytes) | 
    | 6BE3A | Tung-Sol | R | 6BE3A.pdf (64757 bytes) | 
    | 6BE6 | Mazda-Belvu | H | 6BE6.pdf (126716 bytes) (fr) | 
    | 6BE6 | RCA (HB3) | H | 6BE6.pdf (378878 bytes) | 
    | 6BE6 | General Electric | H | 6BE6.pdf (521410 bytes) | 
    | 6BE6 | Tung-Sol | H | 6BE6.pdf (259330 bytes) | 
    | 6BE6 | Brimar | H | 6BE6.pdf (93871 bytes) | 
    | 6BE6 | Brimar | H | 6BE6.pdf (2652326 bytes) | 
    | 6BE6 | RCA (RC30) | H | 6BC4.pdf (510539 bytes) |