| 
        Electron tube Type
       | 
        Brand
       | 
        System
       | 
        Data sheet
   | 
    | 
      5-125B (= 4E27A)
     | 
      RCA (HB3)
     | 
      P~
     | 
      4E27A.pdf (837965 bytes)
   | 
    | 
      5-125B (= 4E27A)
     | 
      Eimac
     | 
      P~
     | 
      4E27A.pdf (910982 bytes)
   | 
    | 
      5-125B (= 4E27A)
     | 
      Eimac
     | 
      P~
     | 
      4E27A.pdf (1465607 bytes)
   | 
    | 
      5-500A
     | 
      Eimac
     | 
      P~
     | 
      5-500A.pdf (1324968 bytes)
   | 
    | 
      5/03HM
     | 
      Ferranti
     | 
      CRR
     | 
      5-03HM.pdf (83764 bytes)
   | 
    | 
      5/03JM
     | 
      Ferranti
     | 
      CRR
     | 
      5-03HM.pdf (83764 bytes)
   | 
    | 
      5/03LM
     | 
      Ferranti
     | 
      CRR
     | 
      5-03HM.pdf (83764 bytes)
   | 
    | 
      5/04TM
     | 
      Ferranti
     | 
      CRM
     | 
      5-04TM.pdf (67829 bytes)
   | 
    | 
      5/21AM
     | 
      Ferranti
     | 
      CRT
     | 
      5-21AM.pdf (151556 bytes)
   | 
    | 
      5/21PM
     | 
      Ferranti
     | 
      CRT
     | 
      5-21AM.pdf (151556 bytes)
   | 
    | 
      5/21QM
     | 
      Ferranti
     | 
      CRT
     | 
      5-21AM.pdf (151556 bytes)
   | 
    | 
      5/28AM
     | 
      Ferranti
     | 
      CRT
     | 
      5-28AM.pdf (113011 bytes)
   | 
    | 
      5/28PM
     | 
      Ferranti
     | 
      CRT
     | 
      5-28AM.pdf (113011 bytes)
   | 
    | 
      5/28QM
     | 
      Ferranti
     | 
      CRT
     | 
      5-28AM.pdf (113011 bytes)
   | 
    | 
      5/71AM
     | 
      Ferranti
     | 
      CRR
     | 
      5-71AM.pdf (177391 bytes)
   | 
    | 
      5/71AP
     | 
      Ferranti
     | 
      CRR
     | 
      5-71AP.pdf (177018 bytes)
   | 
    | 
      5/71PM
     | 
      Ferranti
     | 
      CRR
     | 
      5-71AM.pdf (177391 bytes)
   | 
    | 
      5/71PP
     | 
      Ferranti
     | 
      CRR
     | 
      5-71AP.pdf (177018 bytes)
   | 
    | 
      5/71QM
     | 
      Ferranti
     | 
      CRR
     | 
      5-71AM.pdf (177391 bytes)
   | 
    | 
      5/71QP
     | 
      Ferranti
     | 
      CRR
     | 
      5-71AP.pdf (177018 bytes)
   | 
    | 
      5/74QM
     | 
      Ferranti
     | 
      CRR
     | 
      5-74QM.pdf (67741 bytes)
   | 
    | 
      50
     | 
      RCA
     | 
      T
     | 
      50.pdf (31349 bytes)
   | 
    | 
      50 (= CX350)
     | 
      Cunningham
     | 
      T
     | 
      50.pdf (80092 bytes)
   | 
    | 
      50
     | 
      RCA (HB3)
     | 
      T
     | 
      50.pdf (116388 bytes)
   | 
    | 
      50
     | 
      Sylvania
     | 
      T
     | 
      50.pdf (65101 bytes) (fr)
   | 
    | 
      50
     | 
      Tung-Sol
     | 
      T
     | 
      50.pdf (38525 bytes)
   | 
    | 
      502A
     | 
      RCA (HB3)
     | 
      THY
     | 
      502A.pdf (325323 bytes)
   | 
    | 
      505
     | 
      Philips
     | 
      r
     | 
      505.pdf (44345 bytes)
   | 
    | 
      506
     | 
      Philips
     | 
      rr
     | 
      506.pdf (9234 bytes)
   | 
    | 
      506
     | 
      Philips
     | 
      rr
     | 
      506.pdf (86939 bytes)
   | 
    | 
      506BU
     | 
      Cossor
     | 
      rr
     | 
      460BU.pdf (65722 bytes)
   | 
    | 
      506K
     | 
      Philips
     | 
      rr
     | 
      506K.pdf (9255 bytes)
   | 
    | 
      50A1
     | 
      Sylvania
     | 
       
     | 
      50A1.pdf (27763 bytes)
   | 
    | 
      50A2
     | 
      Triad
     | 
      T
     | 
      50A2.pdf (54970 bytes)
   | 
    | 
      50A5
     | 
      RCA (HB3)
     | 
      P
     | 
      50A5.pdf (54210 bytes)
   | 
    | 
      50A5
     | 
      Tung-Sol
     | 
      P
     | 
      50A5.pdf (54652 bytes)
   | 
    | 
      50A5
     | 
      Brimar
     | 
      P
     | 
      43.pdf (48847 bytes)
   | 
    | 
      50AVP
     | 
      Philips
     | 
      PHM
     | 
      50AVP.pdf (893225 bytes)
   | 
    | 
      50AX6G
     | 
      Tung-Sol
     | 
      rr
     | 
      50AX6G.pdf (51146 bytes)
   | 
    | 
      50B2
     | 
      Triad
     | 
       
     | 
      50A2.pdf (54970 bytes)
   | 
    | 
      50B5
     | 
      Mazda-Belvu
     | 
      P
     | 
      50B5.pdf (448918 bytes) (fr)
   | 
    | 
      50B5
     | 
      RCA (HB3)
     | 
      P
     | 
      50B5.pdf (210893 bytes)
   | 
    | 
      50B5
     | 
      Tung-Sol
     | 
      P
     | 
      50B5.pdf (126072 bytes)
   | 
    
      50B5  
     | 
      Sylvania
     | 
      P
     | 
      50B5.pdf (225830 bytes)
   | 
    | 
      50BM8
     | 
      Hitachi
     | 
      tP
     | 
      50BM8.pdf (100550 bytes)
   | 
    | 
      50BM8
     | 
      RCA (RC30)
     | 
      tP
     | 
      6BK7B.pdf (267906 bytes)
   | 
    | 
      50C-A10
     | 
      Matsushita
     | 
      T
     | 
      50C-A10.pdf (188181 bytes) (jp)
   | 
    
      50C5  
     | 
      RCA (HB3)
     | 
      P
     | 
      50C5.pdf (189134 bytes)
   | 
    | 
      50C5
     | 
      General Electric
     | 
      P
     | 
      50C5.pdf (451047 bytes)
   | 
    | 
      50C5
     | 
      Tung-Sol
     | 
      P
     | 
      50C5.pdf (86757 bytes)
   | 
    
      50C5  
     | 
      Brimar
     | 
      P
     | 
      50C5.pdf (62806 bytes)
   | 
    
      50C5  
     | 
      Brimar
     | 
      P
     | 
      50C5.pdf (746314 bytes)
   | 
    
      50C5  
     | 
      RCA (RC30)
     | 
      P
     | 
      50C5.pdf (246817 bytes)
   | 
    | 
      50C5A
     | 
      Sylvania
     | 
      P
     | 
      12AT6Aetc.pdf (40152 bytes)
   | 
    | 
      50C6G
     | 
      RCA (HB3)
     | 
      P
     | 
      50C6G.pdf (46868 bytes)
   | 
    | 
      50C6G
     | 
      Tung-Sol
     | 
      P
     | 
      50C6G.pdf (109972 bytes)
   | 
    | 
      50C6GA
     | 
      Tung-Sol
     | 
      P
     | 
      50C6GA.pdf (141610 bytes)
   | 
    | 
      50CA5
     | 
      Tung-Sol
     | 
      P
     | 
      50CA5.pdf (98590 bytes)
   | 
    | 
      50CD6G
     | 
      Brimar
     | 
      P
     | 
      50C5.pdf (62806 bytes)
   | 
    | 
      50CD6G
     | 
      STC/Brimar
     | 
      P
     | 
      50CD6G.pdf (70449 bytes)
   | 
    | 
      50DC4
     | 
      RCA (HB3)
     | 
      r
     | 
      50DC4.pdf (115636 bytes)
   | 
    | 
      50DC4
     | 
      General Electric
     | 
      r
     | 
      50DC4.pdf (218965 bytes)
   | 
    | 
      50DC4
     | 
      Tung-Sol
     | 
      r
     | 
      50DC4.pdf (124674 bytes)
   | 
    | 
      50E5
     | 
      Matushita
     | 
       
     | 
      50E5.pdf (20065 bytes)
   | 
    | 
      50EH5
     | 
      RCA (HB3)
     | 
      P
     | 
      50EH5.pdf (22820 bytes)
   | 
    | 
      50EH5
     | 
      General Electric
     | 
      P
     | 
      50EH5.pdf (342008 bytes)
   | 
    | 
      50EH5
     | 
      Sylvania
     | 
      P
     | 
      6EH5.pdf (140273 bytes)
   | 
    | 
      50EH5
     | 
      Tung-Sol
     | 
      P
     | 
      50EH5.pdf (148521 bytes)
   | 
    | 
      50EH5
     | 
      RCA (RC30)
     | 
      P
     | 
      6EA8.pdf (574278 bytes)
   | 
    | 
      50EH5A
     | 
      Sylvania
     | 
      P
     | 
      12AT6Aetc.pdf (40152 bytes)
   | 
    | 
      50FA5
     | 
      Tung-Sol
     | 
      P
     | 
      50FA5.pdf (71738 bytes)
   | 
    | 
      50FE5
     | 
      RCA (HB3)
     | 
      P
     | 
      50EH5.pdf (22820 bytes)
   | 
    | 
      50FK5
     | 
      Tung-Sol
     | 
      P
     | 
      50FK5.pdf (66244 bytes)
   | 
    | 
      50FY8
     | 
      Sylvania
     | 
      tP
     | 
      50FY8.pdf (53764 bytes)
   | 
    | 
      50FY8
     | 
      Tung-Sol
     | 
      tP
     | 
      50FY8.pdf (163355 bytes)
   | 
    | 
      50GY7A
     | 
      RCA (RC30)
     | 
      RP
     | 
      29LE6.pdf (252445 bytes)
   | 
    | 
      50H-B26
     | 
      Matsushita
     | 
      P
     | 
      50H-B26.pdf (344295 bytes) (jp)
   | 
    | 
      50HC6
     | 
      GE
     | 
       
     | 
      50HC6.pdf (111292 bytes)
   | 
    | 
      50HK6
     | 
      Tung-Sol
     | 
      P
     | 
      50HK6.pdf (112848 bytes)
   | 
    | 
      50HK6
     | 
      RCA (RC30)
     | 
      P
     | 
      50C5.pdf (246817 bytes)
   | 
    | 
      50HN5
     | 
      RMA/EIA
     | 
      P
     | 
      50HN5.pdf (154411 bytes)
   | 
    
      50L6GT  
     | 
      RCA (HB3)
     | 
      P
     | 
      50L6GT.pdf (263704 bytes)
   | 
    
      50L6GT  
     | 
      General Electric
     | 
      P
     | 
      25L6GT.pdf (341055 bytes)
   | 
    | 
      50L6GT
     | 
      Tung-Sol
     | 
      P
     | 
      50L6GT.pdf (175304 bytes)
   | 
    | 
      50L6GT
     | 
      Brimar
     | 
      P
     | 
      50L6GT.pdf (59550 bytes)
   | 
    
      50L6GT  
     | 
      RCA (RC30)
     | 
      P
     | 
      50C5.pdf (246817 bytes)
   | 
    | 
      50L6GT
     | 
      Arcturus
     | 
      P
     | 
      50L6GT.pdf (78298 bytes)
   | 
    | 
      50RS20
     | 
      Tesla
     | 
      Q~
     | 
      50RS20.pdf (267160 bytes) (cs)
   | 
    | 
      50X6
     | 
      RCA (HB3)
     | 
      rr
     | 
      50X6.pdf (49306 bytes)
   | 
    | 
      50X6
     | 
      Tung-Sol
     | 
      rr
     | 
      50X6.pdf (87092 bytes)
   | 
    | 
      50Y6G
     | 
      Tung-Sol
     | 
      rr
     | 
      50Y6GT.pdf (105284 bytes)
   | 
    | 
      50Y6G
     | 
      Sylvania
     | 
      rr
     | 
      50Y6G.pdf (38846 bytes)
   | 
    | 
      50Y6GT
     | 
      RCA (HB3)
     | 
      rr
     | 
      50Y6GT.pdf (12882 bytes)
   | 
    | 
      50Y6GT
     | 
      Tung-Sol
     | 
      rr
     | 
      50Y6GT.pdf (105284 bytes)
   | 
    | 
      50Y7GT
     | 
      RCA (HB3)
     | 
      rr
     | 
      50Y7GT.pdf (94953 bytes)
   | 
    | 
      50Y7GT
     | 
      Tung-Sol
     | 
      rr
     | 
      50Y7GT.pdf (58211 bytes)
   | 
    | 
      50Z6G
     | 
      Hytron
     | 
      rr
     | 
      50Z6G.pdf (77213 bytes)
   | 
    | 
      50Z7G
     | 
      Sylvania
     | 
      rr
     | 
      50Z7G.pdf (73330 bytes) (fr)
   | 
    | 
      50Z7G
     | 
      Tung-Sol
     | 
      rr
     | 
      50Z7G.pdf (93963 bytes)
   | 
    | 
      50Z7G
     | 
      NU
     | 
      rr
     | 
      50Z7G.pdf (80681 bytes)
   | 
    | 
      51
     | 
      Sylvania
     | 
      q
     | 
      35.pdf (38132 bytes) (fr)
   | 
    | 
      512AX
     | 
      Raytheon
     | 
      p
     | 
      512AX.pdf (251978 bytes)
   | 
    | 
      51UVP
     | 
      Philips
     | 
      PHM
     | 
      51UVP.pdf (148684 bytes)
   | 
    | 
      527
     | 
      Eimac
     | 
      T~
     | 
      527.pdf (408499 bytes)
   | 
    | 
      52AVP
     | 
      Philips
     | 
      PHM
     | 
      52AVP.pdf (128077 bytes)
   | 
    | 
      52AVP
     | 
      Philips
     | 
      PHM
     | 
      52AVP.pdf (1131052 bytes)
   | 
    | 
      53
     | 
      RCA
     | 
      TT
     | 
      53.pdf (35174 bytes)
   | 
    | 
      53
     | 
      RCA (HB3)
     | 
      TT
     | 
      53.pdf (97085 bytes)
   | 
    | 
      53
     | 
      Sylvania
     | 
      TT
     | 
      53.pdf (17734 bytes) (fr)
   | 
    | 
      53
     | 
      Tung-Sol
     | 
      TT
     | 
      53.pdf (51104 bytes)
   | 
    | 
      530
     | 
      Westinghouse
     | 
       
     | 
      530.pdf (51419 bytes)
   | 
    | 
      531
     | 
      Westinghouse
     | 
       
     | 
      531.pdf (51664 bytes)
   | 
    | 
      531QQ44
     | 
      Tesla
     | 
      CRB
     | 
      531QQ44.pdf (590992 bytes) (cs)
   | 
    | 
      531QQ44
     | 
      Tesla
     | 
      CRB
     | 
      531QQ44.pdf (789184 bytes) (cs)
   | 
    | 
      5331
     | 
      Amperex
     | 
      T~
     | 
      5331.pdf (7841474 bytes)
   | 
    | 
      5332
     | 
      Amperex
     | 
      T~
     | 
      5331.pdf (7841474 bytes)
   | 
    | 
      53AVP
     | 
      Philips
     | 
      PHM
     | 
      53AVP.pdf (130498 bytes)
   | 
    | 
      53AVP
     | 
      Philips
     | 
      PHM
     | 
      53AVP.pdf (1500189 bytes)
   | 
    | 
      53HK7
     | 
      General Electric
     | 
      RP
     | 
      53HK7.pdf (88420 bytes)
   | 
    | 
      53TR40
     | 
      Tesla
     | 
      THY
     | 
      53TR40.pdf (160094 bytes)
   | 
    | 
      53UVP
     | 
      Philips
     | 
      PHM
     | 
      53UVP.pdf (130581 bytes)
   | 
    | 
      53UVP
     | 
      Philips
     | 
      PHM
     | 
      53AVP.pdf (1500189 bytes)
   | 
    | 
      543
     | 
      United-Electronics
     | 
      R
     | 
      3B24WA.pdf (2451823 bytes)
   | 
    | 
      546 (= GL546)
     | 
      General Electric
     | 
      THY
     | 
      GL546.pdf (506151 bytes)
   | 
    | 
      54AVP
     | 
      Philips
     | 
      PHM
     | 
      54AVP.pdf (131413 bytes)
   | 
    | 
      54AVP
     | 
      Philips
     | 
      PHM
     | 
      54AVP.pdf (1417955 bytes)
   | 
    | 
      54MS4
     | 
      Mazda
     | 
      CRB
     | 
      54MS4.pdf (237543 bytes) (fr)
   | 
    | 
      55
     | 
      RCA
     | 
      ddt
     | 
      55.pdf (33427 bytes)
   | 
    | 
      55
     | 
      Sylvania
     | 
      ddt
     | 
      55.pdf (17480 bytes) (fr)
   | 
    | 
      55
     | 
      Tung-Sol
     | 
      ddt
     | 
      55.pdf (125159 bytes)
   | 
    | 
      55008
     | 
      Philips
     | 
      MAG
     | 
      55008.pdf (1819922 bytes)
   | 
    | 
      55029
     | 
      Philips
     | 
      MAG
     | 
      55029.pdf (386082 bytes)
   | 
    | 
      55030
     | 
      Philips
     | 
      MAG
     | 
      55029.pdf (386082 bytes)
   | 
    | 
      55031
     | 
      Philips
     | 
      MAG
     | 
      55029.pdf (386082 bytes)
   | 
    | 
      55032
     | 
      Philips
     | 
      MAG
     | 
      55029.pdf (386082 bytes)
   | 
    | 
      5512
     | 
      FTR
     | 
       
     | 
      5512.pdf (74908 bytes)
   | 
    | 
      55125
     | 
      Philips
     | 
      MAG
     | 
      55125.pdf (982350 bytes)
   | 
    | 
      5514
     | 
      Hytron
     | 
      T~
     | 
      5514.pdf (123995 bytes)
   | 
    | 
      5516
     | 
      Hytron
     | 
       
     | 
      5516.pdf (145514 bytes)
   | 
    | 
      5517
     | 
      Tung-Sol
     | 
      r`°
     | 
      5517.pdf (88598 bytes)
   | 
    | 
      5517 (= CK5517)
     | 
      Raytheon
     | 
      r`°
     | 
      5517.pdf (362571 bytes)
   | 
    | 
      5518 (= GL5518)
     | 
      General Electric
     | 
      T~
     | 
      GL5518.pdf (486056 bytes)
   | 
    | 
      5519
     | 
      Westinghouse
     | 
       
     | 
      5519.pdf (64804 bytes)
   | 
    | 
      5520
     | 
      Westinghouse
     | 
       
     | 
      5520.pdf (61980 bytes)
   | 
    | 
      5521
     | 
      Westinghouse
     | 
       
     | 
      5521.pdf (62786 bytes)
   | 
    | 
      5522
     | 
      Westinghouse
     | 
       
     | 
      5522.pdf (63449 bytes)
   | 
    | 
      5523
     | 
      Westinghouse
     | 
       
     | 
      5523.pdf (63947 bytes)
   | 
    | 
      5527
     | 
      RCA (HB3)
     | 
      IMG
     | 
      5527.pdf (119851 bytes)
   | 
    | 
      5528
     | 
      ContinentalElectronics
     | 
       
     | 
      5528.pdf (70217 bytes)
   | 
    | 
      5530 (= ML5530)
     | 
      Machlett Laboratories
     | 
      T~
     | 
      5530.pdf (571960 bytes)
   | 
    | 
      5530H (= ML5530H)
     | 
      Machlett Laboratories
     | 
      T~
     | 
      5530.pdf (571960 bytes)
   | 
    | 
      5531 (= ML5531)
     | 
      Machlett Laboratories
     | 
      T~
     | 
      5531.pdf (511262 bytes)
   | 
    | 
      5532
     | 
      Westinghouse
     | 
       
     | 
      5532.pdf (56808 bytes)
   | 
    | 
      5533
     | 
      Westinghouse
     | 
       
     | 
      5533.pdf (54835 bytes)
   | 
    | 
      55334
     | 
      Philips
     | 
      KLY
     | 
      55334.pdf (347008 bytes)
   | 
    | 
      55335
     | 
      Philips
     | 
      KLY
     | 
      55335.pdf (283396 bytes)
   | 
    | 
      5534
     | 
      Westinghouse
     | 
       
     | 
      5534.pdf (57528 bytes)
   | 
    | 
      55340
     | 
      Philips
     | 
      TWT
     | 
      55340.pdf (895631 bytes)
   | 
    | 
      5535
     | 
      Westinghouse
     | 
       
     | 
      5535.pdf (58111 bytes)
   | 
    | 
      5536
     | 
      Westinghouse
     | 
       
     | 
      5536.pdf (55278 bytes)
   | 
    | 
      5537
     | 
      Westinghouse
     | 
       
     | 
      5537.pdf (55584 bytes)
   | 
    | 
      5538
     | 
      Westinghouse
     | 
       
     | 
      5538.pdf (57388 bytes)
   | 
    | 
      5539
     | 
      Westinghouse
     | 
       
     | 
      5539.pdf (59874 bytes)
   | 
    | 
      55395
     | 
      Philips
     | 
      KLY
     | 
      55395.pdf (665406 bytes)
   | 
    | 
      5540
     | 
      Westinghouse
     | 
       
     | 
      5540.pdf (61731 bytes)
   | 
    | 
      5541 (= ML5541)
     | 
      Machlett Laboratories
     | 
      T~
     | 
      5541.pdf (469236 bytes)
   | 
    | 
      5545 (= 3G/501A)
     | 
      STC
     | 
      THY
     | 
      3G-501A.pdf (276423 bytes)
   | 
    | 
      5550
     | 
      RCA (HB3)
     | 
      IGN
     | 
      5550.pdf (360025 bytes)
   | 
    | 
      5550 (= NL5550)
     | 
      National Electronics
     | 
      IGN
     | 
      NL5550.pdf (412568 bytes)
   | 
    | 
      5551
     | 
      RCA (HB3)
     | 
      IGN
     | 
      5551.pdf (108689 bytes)
   | 
    | 
      5551A
     | 
      RCA (HB3)
     | 
      IGN
     | 
      5551A.pdf (378464 bytes)
   | 
    | 
      5552
     | 
      RCA (HB3)
     | 
      IGN
     | 
      5552.pdf (107312 bytes)
   | 
    | 
      5552A
     | 
      RCA (HB3)
     | 
      IGN
     | 
      5552A.pdf (293748 bytes)
   | 
    | 
      5553
     | 
      RCA (HB3)
     | 
      IGN
     | 
      5553.pdf (82694 bytes)
   | 
    | 
      5553A
     | 
      GE
     | 
      IGN
     | 
      5553A.pdf (361997 bytes)
   | 
    | 
      5553B
     | 
      RCA (HB3)
     | 
      IGN
     | 
      5553B.pdf (337987 bytes)
   | 
    | 
      5554
     | 
      RCA (HB3)
     | 
      IGN
     | 
      5554.pdf (202337 bytes)
   | 
    | 
      5555
     | 
      RCA (HB3)
     | 
      IGN
     | 
      5555.pdf (168186 bytes)
   | 
    | 
      5555A
     | 
      Westinghouse
     | 
       
     | 
      5555A.pdf (271248 bytes)
   | 
    | 
      5556
     | 
      RCA (HB3)
     | 
      T~
     | 
      5556.pdf (302935 bytes)
   | 
    | 
      5557
     | 
      RCA (HB3)
     | 
      THY
     | 
      5557.pdf (256260 bytes)
   | 
    | 
      5557
     | 
      EEV
     | 
      THY
     | 
      5557.pdf (165416 bytes)
   | 
    | 
      5557
     | 
      National Electronics
     | 
      THY
     | 
      NL714.pdf (364008 bytes)
   | 
    | 
      5558
     | 
      RCA (HB3)
     | 
      R°
     | 
      5558.pdf (115904 bytes)
   | 
    | 
      5558 (= NL5558)
     | 
      National Electronics
     | 
      R°
     | 
      NL5558.pdf (456644 bytes)
   | 
    | 
      5559
     | 
      RCA (HB3)
     | 
      THY
     | 
      5559.pdf (124947 bytes)
   | 
    | 
      5559
     | 
      EEV
     | 
      THY
     | 
      5559.pdf (217478 bytes)
   | 
    | 
      5559 (= NL5559)
     | 
      National Electronics
     | 
      THY
     | 
      NL5559.pdf (363936 bytes)
   | 
    | 
      5560
     | 
      RCA (HB3)
     | 
      THY
     | 
      5560.pdf (156123 bytes)
   | 
    | 
      5560 (= NL5560)
     | 
      National Electronics
     | 
      THY
     | 
      NL5560.pdf (343507 bytes)
   | 
    | 
      5561
     | 
      RCA (HB3)
     | 
      R°
     | 
      5561.pdf (52171 bytes)
   | 
    | 
      5563
     | 
      RCA (HB3)
     | 
      THY
     | 
      5563.pdf (325729 bytes)
   | 
    | 
      5563A
     | 
      RCA (HB3)
     | 
      THY
     | 
      5563A.pdf (514519 bytes)
   | 
    | 
      5575/100 (= ML5575/100)
     | 
      Machlett Laboratories
     | 
      R
     | 
      5575-100.pdf (165703 bytes)
   | 
    | 
      5576/200 (= ML5576/200)
     | 
      Machlett Laboratories
     | 
      R
     | 
      5576-200.pdf (160461 bytes)
   | 
    | 
      558
     | 
      United-Electronics
     | 
      R
     | 
      3B24WA.pdf (2451823 bytes)
   | 
    
      5581  
     | 
      RCA (HB3)
     | 
      PHT°
     | 
      5581.pdf (283915 bytes)
   | 
    | 
      5582
     | 
      RCA (HB3)
     | 
      PHT°
     | 
      5582.pdf (310736 bytes)
   | 
    | 
      5583
     | 
      RCA (HB3)
     | 
      PHT°
     | 
      5583.pdf (163002 bytes)
   | 
    | 
      5584
     | 
      RCA (HB3)
     | 
      PHT°
     | 
      5584.pdf (176242 bytes)
   | 
    | 
      55850 (= 8483)
     | 
      Amperex
     | 
       
     | 
      8483.pdf (506699 bytes)
   | 
    | 
      5586
     | 
      Philips
     | 
      MAG
     | 
      5586.pdf (988423 bytes)
   | 
    | 
      5588
     | 
      RCA (HB3)
     | 
      T~
     | 
      5588.pdf (426915 bytes)
   | 
    | 
      5589
     | 
      Western Electric
     | 
      TRI`°
     | 
      5589.pdf (54145 bytes)
   | 
    | 
      559
     | 
      RCA (HB3)
     | 
      d
     | 
      559.pdf (143724 bytes)
   | 
    | 
      5590
     | 
      Western Electric
     | 
      p
     | 
      5590.pdf (61190 bytes)
   | 
    | 
      5590
     | 
      LM Ericsson
     | 
      p
     | 
      5590.pdf (1696536 bytes)
   | 
    | 
      5591
     | 
      Western Electric
     | 
      p
     | 
      5591.pdf (59024 bytes)
   | 
    | 
      5591
     | 
      LM Ericsson
     | 
      p
     | 
      5591.pdf (1457554 bytes)
   | 
    | 
      5592
     | 
      RCA (HB3)
     | 
      T~
     | 
      5592.pdf (434669 bytes)
   | 
    | 
      5594
     | 
      Chatham
     | 
      THY
     | 
      5594.pdf (46973 bytes)
   | 
    | 
      5599
     | 
      Westinghouse
     | 
       
     | 
      5599.pdf (58531 bytes)
   | 
    | 
      55A1
     | 
      ChampionRadioTube
     | 
       
     | 
      42A1etc.pdf (99727 bytes)
   | 
    | 
      55A1
     | 
      ChampionRadioTube
     | 
       
     | 
      42A1etc.pdf (99727 bytes)
   | 
    | 
      55AVP
     | 
      Philips
     | 
      PHM
     | 
      55AVP.pdf (136746 bytes)
   | 
    | 
      55B2
     | 
      ChampionRadioTube
     | 
       
     | 
      42A1etc.pdf (99727 bytes)
   | 
    | 
      55N3
     | 
      Rogers
     | 
      r
     | 
      55N3.pdf (94067 bytes)
   | 
    | 
      56
     | 
      RCA
     | 
      t
     | 
      56.pdf (48750 bytes)
   | 
    | 
      56 (= C56)
     | 
      Cunningham
     | 
      t
     | 
      56.pdf (162945 bytes)
   | 
    | 
      56
     | 
      Sylvania
     | 
      t
     | 
      56.pdf (17022 bytes) (fr)
   | 
    | 
      56
     | 
      Tung-Sol
     | 
      t
     | 
      56.pdf (47661 bytes)
   | 
    | 
      5600
     | 
      Westinghouse
     | 
       
     | 
      5600.pdf (59831 bytes)
   | 
    | 
      56001
     | 
      Philips
     | 
      SAD
     | 
      56001.pdf (265280 bytes)
   | 
    | 
      56006
     | 
      Philips
     | 
      SMT
     | 
      56006.pdf (308188 bytes)
   | 
    | 
      5601
     | 
      Westinghouse
     | 
       
     | 
      5601.pdf (61271 bytes)
   | 
    | 
      5602
     | 
      Westinghouse
     | 
       
     | 
      5602.pdf (68741 bytes)
   | 
    | 
      5603
     | 
      Western Electric
     | 
      P
     | 
      5603.pdf (67409 bytes)
   | 
    | 
      5604 (= ML5604)
     | 
      Machlett Laboratories
     | 
      T~
     | 
      5604.pdf (593695 bytes)
   | 
    | 
      5604A
     | 
      RCA (HB3)
     | 
      T~
     | 
      5604A.pdf (593932 bytes)
   | 
    | 
      5607
     | 
      Litton
     | 
       
     | 
      5607.pdf (79901 bytes)
   | 
    | 
      5608
     | 
      Raytheon
     | 
      TT
     | 
      5608.pdf (89416 bytes)
   | 
    | 
      5609
     | 
      Philips
     | 
      MAG
     | 
      5609.pdf (200074 bytes)
   | 
    | 
      561
     | 
      Central Electronics
     | 
      R
     | 
      561.pdf (452935 bytes)
   | 
    | 
      5612
     | 
      ContinentalElectronics
     | 
       
     | 
      5612.pdf (55135 bytes)
   | 
    | 
      5613
     | 
      ContinentalElectronics
     | 
       
     | 
      5612.pdf (55135 bytes)
   | 
    | 
      5614
     | 
      ContinentalElectronics
     | 
       
     | 
      5612.pdf (55135 bytes)
   | 
    | 
      5615
     | 
      ContinentalElectronics
     | 
       
     | 
      5612.pdf (55135 bytes)
   | 
    | 
      5616
     | 
      ContinentalElectronics
     | 
       
     | 
      5612.pdf (55135 bytes)
   | 
    | 
      5617
     | 
      ContinentalElectronics
     | 
       
     | 
      5612.pdf (55135 bytes)
   | 
    | 
      5618
     | 
      RCA (HB3)
     | 
      P~
     | 
      5618.pdf (268072 bytes)
   | 
    | 
      5619 (= ML5619)
     | 
      Machlett Laboratories
     | 
      T~
     | 
      5604.pdf (593695 bytes)
   | 
    | 
      5632 (= C3J)
     | 
      RCA (HB3)
     | 
      THY
     | 
      C3J.pdf (115927 bytes)
   | 
    
      5632 (= NL5632)  
     | 
      National Electronics
     | 
      THY
     | 
      NL5632.pdf (339442 bytes)
   | 
    | 
      5632 (= ELC3J)
     | 
      Electrons Inc
     | 
      THY
     | 
      ELC3J.pdf (124883 bytes)
   | 
    | 
      5633
     | 
      Sylvania
     | 
      p
     | 
      5633.pdf (63637 bytes)
   | 
    | 
      5634
     | 
      Sylvania
     | 
      p
     | 
      5634.pdf (67660 bytes)
   | 
    | 
      5636
     | 
      Philips
     | 
      p
     | 
      5636.pdf (236331 bytes)
   | 
    | 
      5636
     | 
      Philips
     | 
      p
     | 
      5636.pdf (322028 bytes)
   | 
    | 
      5636
     | 
      RCA (HB3)
     | 
      p
     | 
      5636.pdf (587789 bytes)
   | 
    | 
      5636
     | 
      RCA
     | 
      p
     | 
      5636.pdf (640525 bytes)
   | 
    | 
      5636
     | 
      General-Electric
     | 
      p
     | 
      5636.pdf (941354 bytes)
   | 
    | 
      5636
     | 
      Tung-Sol
     | 
      p
     | 
      5636.pdf (430451 bytes)
   | 
    | 
      5636
     | 
      Tung-Sol
     | 
      p
     | 
      5636.pdf (454095 bytes)
   | 
    | 
      5636
     | 
      Mullard
     | 
      p
     | 
      5636.pdf (371070 bytes)
   | 
    
      5636  
     | 
      Sylvania
     | 
      p
     | 
      5636.pdf (1738801 bytes)
   | 
    
      5636  
     | 
      CSF
     | 
      p
     | 
      5636.pdf (3856555 bytes) (fr)
   | 
    | 
      5637
     | 
      Sylvania
     | 
      t
     | 
      5637.pdf (48477 bytes)
   | 
    | 
      5638
     | 
      Sylvania
     | 
      p
     | 
      5638.pdf (51165 bytes)
   | 
    | 
      5639
     | 
      Philips
     | 
      P
     | 
      5639.pdf (209427 bytes)
   | 
    | 
      5639
     | 
      Philips
     | 
      P
     | 
      5639.pdf (305929 bytes)
   | 
    | 
      5639
     | 
      Tung-Sol
     | 
      P
     | 
      5639.pdf (248024 bytes)
   | 
    | 
      5639
     | 
      Tung-Sol
     | 
      P
     | 
      5639.pdf (255762 bytes)
   | 
    
      5639  
     | 
      Sylvania
     | 
      P
     | 
      5639.pdf (965705 bytes)
   | 
    | 
      5639
     | 
      CSF
     | 
      P
     | 
      5639.pdf (3996143 bytes) (fr)
   | 
    | 
      5639WA
     | 
      Tung-Sol
     | 
      p
     | 
      5639WA.pdf (448972 bytes)
   | 
    | 
      5639WA (= CK5639WA)
     | 
      Raytheon
     | 
      p
     | 
      5639WA.pdf (962092 bytes)
   | 
    | 
      5640
     | 
      Sylvania
     | 
      P
     | 
      5640.pdf (53797 bytes)
   | 
    | 
      5641
     | 
      Sylvania
     | 
      r
     | 
      5641.pdf (676335 bytes)
   | 
    | 
      5642
     | 
      Philips
     | 
      R
     | 
      5642.pdf (45765 bytes)
   | 
    | 
      5642
     | 
      Philips
     | 
      R
     | 
      5642.pdf (33636 bytes)
   | 
    
      5642  
     | 
      RCA (HB3)
     | 
      R
     | 
      5642.pdf (74039 bytes)
   | 
    | 
      5642
     | 
      Mullard
     | 
      R
     | 
      5642.pdf (66238 bytes)
   | 
    | 
      5643
     | 
      Tung-Sol
     | 
      THY
     | 
      5643.pdf (245347 bytes)
   | 
    | 
      5643
     | 
      Bendix
     | 
      THY
     | 
      5643.pdf (489338 bytes)
   | 
    | 
      5643
     | 
      Sylvania
     | 
      THY
     | 
      5643.pdf (830517 bytes)
   | 
    | 
      5643 (= CK5643)
     | 
      Raytheon
     | 
      THY
     | 
      5643.pdf (333793 bytes)
   | 
    | 
      5643
     | 
      CSF
     | 
      THY
     | 
      5643.pdf (4453255 bytes) (fr)
   | 
    | 
      5644
     | 
      Philips
     | 
      v`°
     | 
      5644.pdf (163518 bytes)
   | 
    | 
      5644
     | 
      Sylvania
     | 
      v`°
     | 
      5644.pdf (301028 bytes)
   | 
    | 
      5644
     | 
      Raytheon
     | 
      v`°
     | 
      5644.pdf (414910 bytes)
   | 
    | 
      5645
     | 
      Sylvania
     | 
      t
     | 
      5645.pdf (58446 bytes)
   | 
    | 
      5646
     | 
      Sylvania
     | 
      t
     | 
      5646.pdf (59499 bytes)
   | 
    | 
      5647
     | 
      Sylvania
     | 
      d
     | 
      5647.pdf (475804 bytes)
   | 
    | 
      5649
     | 
      WECo
     | 
       
     | 
      5649.pdf (41831 bytes)
   | 
    | 
      5650
     | 
      WECo
     | 
       
     | 
      5650.pdf (42941 bytes)
   | 
    | 
      5650 (= 5981)
     | 
      WECo
     | 
       
     | 
      5981.pdf (259865 bytes)
   | 
    | 
      5651
     | 
      RCA (HB3)
     | 
      v`°
     | 
      5651.pdf (76009 bytes)
   | 
    | 
      5651
     | 
      Tung-Sol
     | 
      v`°
     | 
      5651.pdf (140731 bytes)
   | 
    | 
      5651
     | 
      Sylvania
     | 
      v`°
     | 
      5651.pdf (70200 bytes)
   | 
    | 
      5651 (= SR54_Cerb)
     | 
      Cerberus
     | 
      v`°
     | 
      SR54.pdf (103673 bytes)
   | 
    | 
      5651A
     | 
      RCA (HB3)
     | 
      v`°
     | 
      5651A.pdf (148383 bytes)
   | 
    | 
      5651A
     | 
      RCA (RC30)
     | 
      v`°
     | 
      2050.pdf (813252 bytes)
   | 
    | 
      5651WA
     | 
      Tung-Sol
     | 
      v`°
     | 
      5651WA.pdf (266712 bytes)
   | 
    | 
      5651WA (= CK5651WA)
     | 
      Raytheon
     | 
      v`°
     | 
      5651WA.pdf (441328 bytes)
   | 
    | 
      5652
     | 
      RCA (HB3)
     | 
      PHT
     | 
      5652.pdf (132053 bytes)
   | 
    | 
      5653
     | 
      RCA (HB3)
     | 
      PHT
     | 
      5653.pdf (56953 bytes)
   | 
    | 
      5654
     | 
      Philips
     | 
      p
     | 
      5654.pdf (155139 bytes)
   | 
    | 
      5654
     | 
      Mazda-Belvu
     | 
      p
     | 
      5654.pdf (855558 bytes) (fr)
   | 
    | 
      5654
     | 
      Philips
     | 
      p
     | 
      5654.pdf (404700 bytes)
   | 
    | 
      5654
     | 
      RCA (HB3)
     | 
      p
     | 
      5654.pdf (103730 bytes)
   | 
    | 
      5654
     | 
      RCA
     | 
      p
     | 
      5654.pdf (287906 bytes)
   | 
    | 
      5654
     | 
      General-Electric
     | 
      p
     | 
      5654.pdf (617460 bytes)
   | 
    | 
      5654
     | 
      Tung-Sol
     | 
      p
     | 
      5654.pdf (250379 bytes)
   | 
    | 
      5654 (= GL5654)
     | 
      General Electric
     | 
      p
     | 
      5654.pdf (595057 bytes)
   | 
    | 
      5654
     | 
      Tung-Sol
     | 
      p
     | 
      5654.pdf (400264 bytes)
   | 
    | 
      5654 (= CK5654)
     | 
      Raytheon
     | 
      p
     | 
      5654.pdf (697978 bytes)
   | 
    | 
      5654
     | 
      CSF
     | 
      p
     | 
      5654.pdf (6788411 bytes) (fr)
   | 
    | 
      5654
     | 
      Siemens
     | 
      p
     | 
      5654.pdf (314754 bytes) (de)
   | 
    | 
      5654
     | 
      RCA (RC30)
     | 
      p
     | 
      2050.pdf (813252 bytes)
   | 
    | 
      5655
     | 
      RCA
     | 
       
     | 
      5655.pdf (126989 bytes)
   | 
    
      5656       (= CK5656)
     | 
      Raytheon
     | 
      qq~
     | 
      5656.pdf (440292 bytes)
   | 
    | 
      5657
     | 
      Philips
     | 
      MAG
     | 
      5586.pdf (988423 bytes)
   | 
    | 
      5657
     | 
      Philips
     | 
      MAG
     | 
      5657.pdf (22986 bytes)
   | 
    | 
      5658 (= ML5658)
     | 
      Machlett Laboratories
     | 
      T~
     | 
      5658.pdf (501887 bytes)
   | 
    | 
      5659
     | 
      GE
     | 
      P
     | 
      5659.pdf (50688 bytes)
   | 
    | 
      5660
     | 
      GE
     | 
      ddp
     | 
      5660.pdf (79987 bytes)
   | 
    | 
      5661
     | 
      GE
     | 
      p
     | 
      5661.pdf (80246 bytes)
   | 
    | 
      5664 (= ELC1B/A)
     | 
      Electrons Inc
     | 
      THY
     | 
      ELC1B-A.pdf (127684 bytes)
   | 
    | 
      5664
     | 
      ElectronsInc
     | 
      THY
     | 
      5664.pdf (63984 bytes)
   | 
    | 
      5665 (= C16J)
     | 
      RCA (HB3)
     | 
      THY
     | 
      C16J.pdf (134336 bytes)
   | 
    | 
      5665 (= NL5665)
     | 
      National Electronics
     | 
      THY
     | 
      NL5665.pdf (267418 bytes)
   | 
    | 
      5665 (= ELC16J)
     | 
      Electrons Inc
     | 
      THY
     | 
      ELC16J.pdf (131209 bytes)
   | 
    | 
      5666 (= ML5666)
     | 
      Machlett Laboratories
     | 
      T~
     | 
      5666.pdf (543228 bytes)
   | 
    | 
      5667 (= ML5667)
     | 
      Machlett Laboratories
     | 
      T~
     | 
      5666.pdf (543228 bytes)
   | 
    | 
      5668 (= ML5668)
     | 
      Machlett Laboratories
     | 
      T~
     | 
      5668.pdf (526120 bytes)
   | 
    | 
      5669 (= ML5669)
     | 
      Machlett Laboratories
     | 
      T~
     | 
      5668.pdf (526120 bytes)
   | 
    | 
      5670
     | 
      RCA (HB3)
     | 
      tt
     | 
      5670.pdf (380277 bytes)
   | 
    | 
      5670
     | 
      General-Electric
     | 
      tt
     | 
      5670.pdf (560572 bytes)
   | 
    | 
      5670 (= GL5670)
     | 
      General Electric
     | 
      tt
     | 
      5670.pdf (651848 bytes)
   | 
    | 
      5670
     | 
      Tung-Sol
     | 
      tt
     | 
      5670.pdf (142118 bytes)
   | 
    | 
      5670WA
     | 
      Tung-Sol
     | 
      tt
     | 
      5670WA.pdf (243960 bytes)
   | 
    | 
      5670WA
     | 
      Tung-Sol
     | 
      tt
     | 
      5670WA.pdf (231871 bytes)
   | 
    | 
      5670WA (= CK5670WA)
     | 
      Raytheon
     | 
      tt
     | 
      5670WA.pdf (509405 bytes)
   | 
    | 
      5671
     | 
      RCA (HB3)
     | 
      T~
     | 
      5671.pdf (386126 bytes)
   | 
    | 
      5672
     | 
      Mazda-Belvu
     | 
      P
     | 
      5672.pdf (559406 bytes) (fr)
   | 
    | 
      5672
     | 
      Philips
     | 
      P
     | 
      5672.pdf (63418 bytes)
   | 
    
      5672  
     | 
      Tung-Sol
     | 
      P
     | 
      5672.pdf (164098 bytes)
   | 
    | 
      5672 (= CK5672)
     | 
      Raytheon
     | 
      P
     | 
      5672.pdf (568369 bytes)
   | 
    
      5675  
     | 
      RCA (HB3)
     | 
      t~
     | 
      5675.pdf (297822 bytes)
   | 
    | 
      5675
     | 
      Tung-Sol
     | 
      t~
     | 
      5675.pdf (133965 bytes)
   | 
    | 
      5675
     | 
      Sylvania
     | 
      t~
     | 
      5675.pdf (127751 bytes)
   | 
    | 
      5676
     | 
      Mazda-Belvu
     | 
      t
     | 
      5676.pdf (222093 bytes) (fr)
   | 
    | 
      5676
     | 
      Tung-Sol
     | 
      t
     | 
      5676.pdf (89869 bytes)
   | 
    | 
      5676 (= CK5676)
     | 
      Raytheon
     | 
      t
     | 
      5676.pdf (207512 bytes)
   | 
    | 
      5678
     | 
      Mazda-Belvu
     | 
      p
     | 
      5678.pdf (344567 bytes) (fr)
   | 
    | 
      5678
     | 
      Philips
     | 
      p
     | 
      5678.pdf (45536 bytes)
   | 
    | 
      5678
     | 
      Tung-Sol
     | 
      p
     | 
      5678.pdf (157661 bytes)
   | 
    
      5678   (= CK5678)
     | 
      Raytheon
     | 
      p
     | 
      5678.pdf (507988 bytes)
   | 
    | 
      5679
     | 
      Sylvania
     | 
      dd
     | 
      5679.pdf (32920 bytes)
   | 
    | 
      5680
     | 
      Central Electronics
     | 
      T~
     | 
      5680.pdf (10932015 bytes)
   | 
    
      5681 (= ML5681)  
     | 
      Machlett Laboratories
     | 
      T~
     | 
      5681.pdf (1510640 bytes)
   | 
    | 
      5682 (= ML5682)
     | 
      Machlett Laboratories
     | 
      T~
     | 
      5682.pdf (1574016 bytes)
   | 
    | 
      5683
     | 
      ElectronsInc
     | 
       
     | 
      5683.pdf (64436 bytes)
   | 
    | 
      5684 (= C3J/A)
     | 
      RCA (HB3)
     | 
      THY
     | 
      C3JA.pdf (116066 bytes)
   | 
    | 
      5684 (= NL5684)
     | 
      National Electronics
     | 
      THY
     | 
      NL5684.pdf (314683 bytes)
   | 
    | 
      5684 (= ELC3J/A)
     | 
      Electrons Inc
     | 
      THY
     | 
      ELC3J-A.pdf (128197 bytes)
   | 
    | 
      5684
     | 
      ElectronsInc
     | 
      THY
     | 
      5684.pdf (65519 bytes)
   | 
    | 
      5685 (= C6J/A)
     | 
      RCA (HB3)
     | 
      THY
     | 
      C6JA.pdf (116198 bytes)
   | 
    | 
      5685 (= ELC6J/A)
     | 
      Electrons Inc
     | 
      THY
     | 
      ELC6J-A.pdf (123134 bytes)
   | 
    | 
      5685
     | 
      ElectronsInc
     | 
      THY
     | 
      5685.pdf (73961 bytes)
   | 
    | 
      56858
     | 
      PDS / CRT Heerlen
     | 
      CRO
     | 
      56858PINTEK.pdf (213920 bytes)
   | 
    | 
      56858-1
     | 
      PDS / CRT Heerlen
     | 
      CRO
     | 
      56858-1.pdf (301150 bytes)
   | 
    | 
      56859
     | 
      PDS / CRT Heerlen
     | 
      CRO
     | 
      D14376-123.pdf (199123 bytes)
   | 
    
      5686  
     | 
      RCA (HB3)
     | 
      P
     | 
      5686.pdf (126757 bytes)
   | 
    
      5686   (= GL5686)
     | 
      General Electric
     | 
      P
     | 
      5686.pdf (698078 bytes)
   | 
    | 
      5686
     | 
      Tung-Sol
     | 
      P
     | 
      5686.pdf (195257 bytes)
   | 
    | 
      5686
     | 
      CSF
     | 
      P
     | 
      5686.pdf (7621605 bytes) (fr)
   | 
    | 
      56862
     | 
      PDS / CRT Heerlen
     | 
      CRO
     | 
      56862.pdf (219762 bytes)
   | 
    | 
      56863
     | 
      PDS / CRT Heerlen
     | 
      CRO
     | 
      56863.pdf (219995 bytes)
   | 
    | 
      5687
     | 
      RCA (HB3)
     | 
      tt
     | 
      5687.pdf (69427 bytes)
   | 
    | 
      5687
     | 
      Tung-Sol
     | 
      tt
     | 
      5687.pdf (191415 bytes)
   | 
    | 
      5687
     | 
      CSF
     | 
      tt
     | 
      5687.pdf (5320015 bytes) (fr)
   | 
    | 
      56875
     | 
      PDS / CRT Heerlen
     | 
      CRO
     | 
      56875.pdf (218700 bytes)
   | 
    | 
      5687WA
     | 
      Tung-Sol
     | 
      tt
     | 
      5687WA.pdf (310350 bytes)
   | 
    | 
      5687WA
     | 
      Tung-Sol
     | 
      tt
     | 
      5687WA.pdf (316402 bytes)
   | 
    | 
      5687WA (= CK5687WA)
     | 
      Raytheon
     | 
      tt
     | 
      5687WA.pdf (831394 bytes)
   | 
    
      5690    
     | 
      RCA (HB3)
     | 
      rr
     | 
      5690.pdf (791021 bytes)
   | 
    
      5691      
     | 
      RCA (HB3)
     | 
      tt
     | 
      5691.pdf (264154 bytes)
   | 
    | 
      5691
     | 
      RCA
     | 
      tt
     | 
      5691.pdf (964992 bytes)
   | 
    
      5692  
     | 
      RCA (HB3)
     | 
      tt
     | 
      5692.pdf (224684 bytes)
   | 
    | 
      5692
     | 
      RCA
     | 
      tt
     | 
      5691.pdf (964992 bytes)
   | 
    
      5693    
     | 
      RCA (HB3)
     | 
      p
     | 
      5693.pdf (458649 bytes)
   | 
    | 
      5693
     | 
      RCA
     | 
      p
     | 
      5691.pdf (964992 bytes)
   | 
    | 
      5694
     | 
      Raytheon
     | 
      tt
     | 
      5694.pdf (90007 bytes)
   | 
    | 
      5695
     | 
      ElectronicEnterprises
     | 
      R°
     | 
      5695.pdf (51240 bytes)
   | 
    | 
      5696
     | 
      Philips
     | 
      THY
     | 
      5696.pdf (307926 bytes)
   | 
    | 
      5696
     | 
      RCA (HB3)
     | 
      THY
     | 
      5696.pdf (195075 bytes)
   | 
    | 
      5696
     | 
      RCA
     | 
      THY
     | 
      5696.pdf (535084 bytes)
   | 
    | 
      5696
     | 
      Tung-Sol
     | 
      THY
     | 
      5696.pdf (188416 bytes)
   | 
    | 
      5696
     | 
      RCA (RC30)
     | 
      THY
     | 
      2050.pdf (813252 bytes)
   | 
    | 
      56AVP
     | 
      Philips
     | 
      PHM
     | 
      56AVP.pdf (176857 bytes)
   | 
    | 
      56AVP
     | 
      Philips
     | 
      PHM
     | 
      56AVP.pdf (2519831 bytes)
   | 
    | 
      56R9
     | 
      GE
     | 
       
     | 
      56R9.pdf (99278 bytes)
   | 
    | 
      56UVP
     | 
      Philips
     | 
      PHM
     | 
      56AVP.pdf (2519831 bytes)
   | 
    | 
      57
     | 
      RCA
     | 
      p
     | 
      57.pdf (33086 bytes)
   | 
    | 
      57 (= C57)
     | 
      Cunningham
     | 
      p
     | 
      57.pdf (158382 bytes)
   | 
    | 
      57
     | 
      Sylvania
     | 
      p
     | 
      57.pdf (17316 bytes) (fr)
   | 
    | 
      57
     | 
      Tung-Sol
     | 
      p
     | 
      57.pdf (50087 bytes)
   | 
    | 
      5702WA
     | 
      Tung-Sol
     | 
      p
     | 
      5702WA.pdf (415040 bytes)
   | 
    | 
      5702WB
     | 
      Mazda-Belvu
     | 
      p
     | 
      5702WB.pdf (677253 bytes) (fr)
   | 
    | 
      5702WB
     | 
      Tung-Sol
     | 
      p
     | 
      5702WB.pdf (412080 bytes)
   | 
    | 
      5702WB (= CK5702WB)
     | 
      Raytheon
     | 
      p
     | 
      5702WB.pdf (972978 bytes)
   | 
    | 
      5703
     | 
      Tung-Sol
     | 
      t
     | 
      5703.pdf (201884 bytes)
   | 
    | 
      5703WA
     | 
      Tung-Sol
     | 
      t
     | 
      5703.pdf (201884 bytes)
   | 
    | 
      5703WB
     | 
      Tung-Sol
     | 
      t
     | 
      5703.pdf (201884 bytes)
   | 
    | 
      5703WB (= CK5703WB)
     | 
      Raytheon
     | 
      t
     | 
      5703WB.pdf (943634 bytes)
   | 
    | 
      5704
     | 
      Raytheon
     | 
      d
     | 
      5704.pdf (28765 bytes)
   | 
    | 
      5704WA (= CK5704WA)
     | 
      Raytheon
     | 
      d
     | 
      5704WA.pdf (516448 bytes)
   | 
    | 
      5705
     | 
      Westinghouse
     | 
       
     | 
      5705.pdf (221385 bytes)
   | 
    | 
      5710
     | 
      GE
     | 
       
     | 
      5710.pdf (174810 bytes)
   | 
    | 
      5711
     | 
      Westinghouse
     | 
       
     | 
      5711.pdf (49176 bytes)
   | 
    | 
      5712
     | 
      Westinghouse
     | 
       
     | 
      5712.pdf (54710 bytes)
   | 
    | 
      5713
     | 
      RCA (HB3)
     | 
      T~
     | 
      5713.pdf (321357 bytes)
   | 
    | 
      5718
     | 
      Philips
     | 
      t
     | 
      5718.pdf (218746 bytes)
   | 
    | 
      5718
     | 
      Philips
     | 
      t
     | 
      5718.pdf (458261 bytes)
   | 
    | 
      5718
     | 
      RCA (HB3)
     | 
      t
     | 
      5718.pdf (423361 bytes)
   | 
    | 
      5718
     | 
      RCA
     | 
      t
     | 
      5718.pdf (470919 bytes)
   | 
    | 
      5718
     | 
      Tung-Sol
     | 
      t
     | 
      5718.pdf (353234 bytes)
   | 
    | 
      5718
     | 
      Mullard
     | 
      t
     | 
      5718.pdf (280119 bytes)
   | 
    | 
      5718
     | 
      Sylvania
     | 
      t
     | 
      5718.pdf (829133 bytes)
   | 
    | 
      5718
     | 
      CSF
     | 
      t
     | 
      5718.pdf (5935595 bytes) (fr)
   | 
    | 
      5719
     | 
      Philips
     | 
      t
     | 
      5719.pdf (220939 bytes)
   | 
    | 
      5719
     | 
      RCA (HB3)
     | 
      t
     | 
      5719.pdf (344999 bytes)
   | 
    | 
      5719
     | 
      RCA
     | 
      t
     | 
      5719.pdf (421881 bytes)
   | 
    | 
      5719
     | 
      Tung-Sol
     | 
      t
     | 
      5719.pdf (340048 bytes)
   | 
    | 
      5719
     | 
      Sylvania
     | 
      t
     | 
      5719.pdf (813936 bytes)
   | 
    | 
      5719
     | 
      CSF
     | 
      t
     | 
      5719.pdf (5614619 bytes) (fr)
   | 
    | 
      5722
     | 
      Sylvania
     | 
      r
     | 
      5722.pdf (612780 bytes)
   | 
    | 
      5725
     | 
      Philips
     | 
      p
     | 
      5725.pdf (334783 bytes)
   | 
    | 
      5725
     | 
      Mazda-Belvu
     | 
      p
     | 
      5725.pdf (497799 bytes) (fr)
   | 
    | 
      5725
     | 
      RCA (HB3)
     | 
      p
     | 
      5725.pdf (291209 bytes)
   | 
    | 
      5725
     | 
      Tung-Sol
     | 
      p
     | 
      5725.pdf (382470 bytes)
   | 
    
      5725   (= GL5725)
     | 
      General Electric
     | 
      p
     | 
      5725.pdf (660561 bytes)
   | 
    | 
      5725
     | 
      Tung-Sol
     | 
      p
     | 
      5725.pdf (384542 bytes)
   | 
    | 
      5725
     | 
      Raytheon
     | 
      p
     | 
      5725.pdf (1153004 bytes)
   | 
    | 
      5725
     | 
      CSF
     | 
      p
     | 
      5725.pdf (6424250 bytes) (fr)
   | 
    | 
      5726
     | 
      Philips
     | 
      dd
     | 
      5726.pdf (217652 bytes)
   | 
    | 
      5726
     | 
      Mazda-Belvu
     | 
      dd
     | 
      5726.pdf (429129 bytes) (fr)
   | 
    | 
      5726
     | 
      Philips
     | 
      dd
     | 
      5726.pdf (521581 bytes)
   | 
    | 
      5726
     | 
      RCA (HB3)
     | 
      dd
     | 
      5726.pdf (174833 bytes)
   | 
    | 
      5726
     | 
      RCA
     | 
      dd
     | 
      5726.pdf (238263 bytes)
   | 
    
      5726  
     | 
      Tung-Sol
     | 
      dd
     | 
      5726.pdf (214010 bytes)
   | 
    
      5726   (= GL5726)
     | 
      General Electric
     | 
      dd
     | 
      5726.pdf (547826 bytes)
   | 
    | 
      5726 (= EAA901S)
     | 
      Telefunken
     | 
      dd
     | 
      EAA901S.pdf (213054 bytes)
   | 
    
      5726  
     | 
      Tung-Sol
     | 
      dd
     | 
      5726.pdf (323318 bytes)
   | 
    | 
      5726 (= CK5726)
     | 
      Raytheon
     | 
      dd
     | 
      5726.pdf (492965 bytes)
   | 
    | 
      5726
     | 
      CSF
     | 
      dd
     | 
      5726.pdf (4261791 bytes) (fr)
   | 
    
      5726 (= E91AA)    
     | 
      Siemens
     | 
      dd
     | 
      E91AA.pdf (174807 bytes) (de)
   | 
    | 
      5727
     | 
      Mazda-Belvu
     | 
      THY
     | 
      5727.pdf (747254 bytes) (fr)
   | 
    | 
      5727
     | 
      RCA (HB3)
     | 
      THY
     | 
      5727.pdf (294362 bytes)
   | 
    | 
      5727
     | 
      RCA
     | 
      THY
     | 
      5727.pdf (702287 bytes)
   | 
    | 
      5727 (= GL5727)
     | 
      General Electric
     | 
      THY
     | 
      5727.pdf (772493 bytes)
   | 
    | 
      5727
     | 
      RCA (RC30)
     | 
      THY
     | 
      2050.pdf (813252 bytes)
   | 
    | 
      5728
     | 
      RCA (HB3)
     | 
      THY
     | 
      5728.pdf (169953 bytes)
   | 
    | 
      5729
     | 
      NU
     | 
       
     | 
      5729.pdf (177546 bytes)
   | 
    | 
      572B
     | 
      Scientific-Instrument
     | 
      T~
     | 
      572B.pdf (303488 bytes)
   | 
    | 
      572B
     | 
      Svetlana
     | 
      T~
     | 
      572B.pdf (43950 bytes)
   | 
    | 
      5730
     | 
      NU
     | 
       
     | 
      5730.pdf (178094 bytes)
   | 
    | 
      5731
     | 
      RCA
     | 
      t
     | 
      5731.pdf (65669 bytes)
   | 
    | 
      5732
     | 
      RadioValveCo
     | 
      p
     | 
      5732.pdf (56615 bytes)
   | 
    | 
      5734
     | 
      RCA (HB3)
     | 
      MET
     | 
      5734.pdf (278370 bytes)
   | 
    | 
      5734A
     | 
      RMA/EIA
     | 
      t
     | 
      5734A.pdf (241955 bytes)
   | 
    | 
      5736
     | 
      Central Electronics
     | 
      T~
     | 
      5736.pdf (2717342 bytes)
   | 
    | 
      5737
     | 
      FTR
     | 
       
     | 
      5737.pdf (202593 bytes)
   | 
    | 
      5738
     | 
      FTR
     | 
       
     | 
      5738.pdf (95073 bytes)
   | 
    | 
      5741
     | 
      GE
     | 
       
     | 
      5741.pdf (24712 bytes)
   | 
    | 
      5744
     | 
      Tung-Sol
     | 
      t
     | 
      5744.pdf (107768 bytes)
   | 
    | 
      5744WB
     | 
      Tung-Sol
     | 
      t
     | 
      5744WB.pdf (352243 bytes)
   | 
    | 
      5744WB (= CK5744WB)
     | 
      Raytheon
     | 
      t
     | 
      5744WB.pdf (737072 bytes)
   | 
    | 
      5745
     | 
      Westinghouse
     | 
       
     | 
      5745.pdf (54169 bytes)
   | 
    | 
      5746
     | 
      Westinghouse
     | 
       
     | 
      5746.pdf (52795 bytes)
   | 
    | 
      5747
     | 
      Westinghouse
     | 
       
     | 
      5747.pdf (56252 bytes)
   | 
    | 
      5748
     | 
      Westinghouse
     | 
       
     | 
      5748.pdf (55008 bytes)
   | 
    | 
      5749
     | 
      Mazda-Belvu
     | 
      p
     | 
      5749.pdf (754293 bytes) (fr)
   | 
    | 
      5749
     | 
      Tung-Sol
     | 
      p
     | 
      5749.pdf (263373 bytes)
   | 
    | 
      5749 (= GL5749)
     | 
      General Electric
     | 
      p
     | 
      5749.pdf (639553 bytes)
   | 
    | 
      5749
     | 
      Tung-Sol
     | 
      p
     | 
      5749.pdf (416203 bytes)
   | 
    | 
      5749
     | 
      CSF
     | 
      p
     | 
      5749.pdf (5736831 bytes) (fr)
   | 
    | 
      5750
     | 
      RCA (HB3)
     | 
      H
     | 
      5750.pdf (122604 bytes)
   | 
    | 
      5750 (= GL5750)
     | 
      General Electric
     | 
      H
     | 
      5750.pdf (646747 bytes)
   | 
    | 
      5751
     | 
      Mazda-Belvu
     | 
      tt
     | 
      5751.pdf (689521 bytes) (fr)
   | 
    | 
      5751
     | 
      RCA (HB3)
     | 
      tt
     | 
      5751.pdf (222944 bytes)
   | 
    | 
      5751
     | 
      Siemens
     | 
      tt
     | 
      5751.pdf (106405 bytes) (de)
   | 
    | 
      5751 (= GL5751)
     | 
      General Electric
     | 
      tt
     | 
      5751.pdf (646925 bytes)
   | 
    | 
      5751
     | 
      Tung-Sol
     | 
      tt
     | 
      5751.pdf (136071 bytes)
   | 
    | 
      5751
     | 
      Siemens
     | 
      tt
     | 
      5751.pdf (231531 bytes) (de)
   | 
    | 
      5751
     | 
      RCA (RC30)
     | 
      tt
     | 
      2050.pdf (813252 bytes)
   | 
    | 
      5751WA
     | 
      Tung-Sol
     | 
      tt
     | 
      5751WA.pdf (262382 bytes)
   | 
    | 
      5751WA
     | 
      Tung-Sol
     | 
      tt
     | 
      5751WA.pdf (269752 bytes)
   | 
    
      5755   (= CK5755)
     | 
      Raytheon
     | 
      tt
     | 
      5755.pdf (345094 bytes)
   | 
    | 
      5759
     | 
      Amperex
     | 
       
     | 
      5759.pdf (85646 bytes)
   | 
    | 
      575A (= ML575A)
     | 
      Machlett Laboratories
     | 
      R°
     | 
      575A.pdf (172745 bytes)
   | 
    | 
      575A
     | 
      RCA (HB3)
     | 
      R°
     | 
      575A.pdf (36465 bytes)
   | 
    | 
      575A
     | 
      Amperex
     | 
      R°
     | 
      575A.pdf (285577 bytes)
   | 
    | 
      575A
     | 
      Eimac
     | 
      R°
     | 
      575A.pdf (792795 bytes)
   | 
    | 
      5760
     | 
      Amperex
     | 
       
     | 
      5760.pdf (112267 bytes)
   | 
    | 
      5761
     | 
      Amperex
     | 
       
     | 
      5761.pdf (117550 bytes)
   | 
    | 
      5762 (= 4654_RCA)
     | 
      RCA (HB3)
     | 
      T~
     | 
      4654.pdf (774592 bytes)
   | 
    | 
      5762
     | 
      RCA (HB3)
     | 
      T~
     | 
      5762.pdf (593515 bytes)
   | 
    | 
      5762
     | 
      EEV
     | 
      T~
     | 
      5762.pdf (307339 bytes)
   |