| 
        Electron tube Type
       | 
        Brand
       | 
        System
       | 
        Data sheet
   | 
    | 
      1G4G
     | 
      RCA (HB3)
     | 
      t
     | 
      1G4GT.pdf (83911 bytes)
   | 
    | 
      1G4G
     | 
      Sylvania
     | 
      t
     | 
      1G4G.pdf (44361 bytes) (fr)
   | 
    | 
      1G4G
     | 
      Tung-Sol
     | 
      t
     | 
      1G4GT.pdf (97799 bytes)
   | 
    | 
      1G4GT
     | 
      RCA (HB3)
     | 
      t
     | 
      1G4GT.pdf (83911 bytes)
   | 
    | 
      1G4GT
     | 
      Tung-Sol
     | 
      t
     | 
      1G4GT.pdf (97799 bytes)
   | 
    | 
      1G5G
     | 
      RCA (HB3)
     | 
      P
     | 
      1G5G.pdf (95749 bytes)
   | 
    | 
      1G5G
     | 
      Sylvania
     | 
      P
     | 
      1G5G.pdf (50853 bytes) (fr)
   | 
    | 
      1G5G
     | 
      Tung-Sol
     | 
      P
     | 
      1G5G.pdf (84680 bytes)
   | 
    | 
      1G6G
     | 
      RCA (HB3)
     | 
      tt
     | 
      1G6GT.pdf (51604 bytes)
   | 
    | 
      1G6G
     | 
      Sylvania
     | 
      tt
     | 
      1G6G.pdf (70039 bytes) (fr)
   | 
    
      1G6GT  
     | 
      RCA (HB3)
     | 
      tt
     | 
      1G6GT.pdf (51604 bytes)
   | 
    | 
      1G6GT
     | 
      Tung-Sol
     | 
      tt
     | 
      1G6GT.pdf (95757 bytes)
   | 
    | 
      1H2
     | 
      General Electric
     | 
      R
     | 
      1H2.pdf (172052 bytes)
   | 
    | 
      1H2
     | 
      Tung-Sol
     | 
      R
     | 
      1H2.pdf (89155 bytes)
   | 
    | 
      1H33
     | 
      Tesla
     | 
      h
     | 
      1H33.pdf (191114 bytes) (cs)
   | 
    | 
      1H34
     | 
      Tesla
     | 
      h
     | 
      1H34.pdf (190187 bytes) (cs)
   | 
    | 
      1H4G
     | 
      RCA (HB3)
     | 
      t
     | 
      1H4G.pdf (129608 bytes)
   | 
    | 
      1H4G
     | 
      Sylvania
     | 
      t
     | 
      1H4G.pdf (19909 bytes) (fr)
   | 
    | 
      1H4G
     | 
      Tung-Sol
     | 
      t
     | 
      1H4G.pdf (165426 bytes)
   | 
    | 
      1H4G
     | 
      Sylvania
     | 
      t
     | 
      1C7Getc.pdf (41014 bytes)
   | 
    | 
      1H4GT
     | 
      Sylvania
     | 
      t
     | 
      1H4GT.pdf (38921 bytes)
   | 
    | 
      1H5G
     | 
      RCA (HB3)
     | 
      dt
     | 
      1H5GT.pdf (98470 bytes)
   | 
    | 
      1H5G
     | 
      Sylvania
     | 
      dt
     | 
      1H5G.pdf (64556 bytes) (fr)
   | 
    | 
      1H5G
     | 
      Tung-Sol
     | 
      dt
     | 
      1H5GT.pdf (107684 bytes)
   | 
    | 
      1H5G
     | 
      Brimar
     | 
      dt
     | 
      1D5.pdf (69465 bytes)
   | 
    | 
      1H5GT
     | 
      RCA (HB3)
     | 
      dt
     | 
      1H5GT.pdf (98470 bytes)
   | 
    
      1H5GT  
     | 
      Sylvania
     | 
      dt
     | 
      1A5GT.pdf (90355 bytes) (fr)
   | 
    | 
      1H5GT
     | 
      Tung-Sol
     | 
      dt
     | 
      1H5GT.pdf (107684 bytes)
   | 
    | 
      1H5GT
     | 
      Brimar
     | 
      dt
     | 
      1D5.pdf (69465 bytes)
   | 
    | 
      1H6G
     | 
      RCA (HB3)
     | 
      ddt
     | 
      1H6G.pdf (106777 bytes)
   | 
    | 
      1H6G
     | 
      Sylvania
     | 
      ddt
     | 
      1H6G.pdf (19641 bytes) (fr)
   | 
    | 
      1H6G
     | 
      Tung-Sol
     | 
      ddt
     | 
      1H6G.pdf (117198 bytes)
   | 
    | 
      1H6G
     | 
      Sylvania
     | 
      ddt
     | 
      1C7Getc.pdf (41014 bytes)
   | 
    | 
      1H6GT
     | 
      Sylvania
     | 
      ddt
     | 
      1H6GT.pdf (32660 bytes)
   | 
    | 
      1J1
     | 
      Sylvania
     | 
      c
     | 
      1J1.pdf (13766 bytes)
   | 
    | 
      1J3
     | 
      General Electric
     | 
      R
     | 
      1J3.pdf (167245 bytes)
   | 
    | 
      1J3
     | 
      Tung-Sol
     | 
      R
     | 
      1J3.pdf (70856 bytes)
   | 
    | 
      1J3
     | 
      RCA (RC30)
     | 
      R
     | 
      1DG3A.pdf (181296 bytes)
   | 
    | 
      1J3A
     | 
      CBS-Hytron
     | 
      R
     | 
      1J3A.pdf (50297 bytes)
   | 
    | 
      1J5G
     | 
      RCA (HB3)
     | 
      P
     | 
      1J5G.pdf (28107 bytes)
   | 
    | 
      1J5G
     | 
      Sylvania
     | 
      P
     | 
      1J5G.pdf (19932 bytes) (fr)
   | 
    | 
      1J5G
     | 
      Tung-Sol
     | 
      P
     | 
      1J5G.pdf (38936 bytes)
   | 
    | 
      1J5G
     | 
      Ken-Rad
     | 
      P
     | 
      1J5G.pdf (22056 bytes)
   | 
    | 
      1J6G
     | 
      AWV
     | 
      TT
     | 
      1J6G.pdf (131263 bytes)
   | 
    | 
      1J6G
     | 
      Sylvania
     | 
      TT
     | 
      1J6G.pdf (24365 bytes) (fr)
   | 
    | 
      1J6G
     | 
      Tung-Sol
     | 
      TT
     | 
      1J6G.pdf (45456 bytes)
   | 
    | 
      1J6G
     | 
      Sylvania
     | 
      TT
     | 
      1C7Getc.pdf (41014 bytes)
   | 
    | 
      1J6G
     | 
      Sylvania
     | 
      TT
     | 
      1J6G.pdf (28887 bytes)
   | 
    
      1J6GT  
     | 
      RCA (HB3)
     | 
      TT
     | 
      1J6GT.pdf (127407 bytes)
   | 
    | 
      1K015CA
     | 
      Eimac
     | 
      KLY
     | 
      1K015CA.pdf (1512817 bytes)
   | 
    | 
      1K015CG
     | 
      Eimac
     | 
      KLY
     | 
      1K015CA.pdf (1512817 bytes)
   | 
    | 
      1K015XA
     | 
      Eimac
     | 
      KLY
     | 
      1K015XA.pdf (332902 bytes)
   | 
    | 
      1K015XG
     | 
      Eimac
     | 
      KLY
     | 
      1K015XA.pdf (332902 bytes)
   | 
    | 
      1K1
     | 
      Sylvania
     | 
      c
     | 
      1K1etc.pdf (26342 bytes)
   | 
    | 
      1K125CA
     | 
      Eimac
     | 
      KLY
     | 
      1K125CA.pdf (1021508 bytes)
   | 
    | 
      1K20XD-A
     | 
      Eimac
     | 
      KLY
     | 
      1K20XD-A.pdf (803328 bytes)
   | 
    | 
      1K20XD-S
     | 
      Eimac
     | 
      KLY
     | 
      1K20XD-S.pdf (923989 bytes)
   | 
    | 
      1K20XF-B
     | 
      Eimac
     | 
      KLY
     | 
      1K20XF-B.pdf (1089802 bytes)
   | 
    | 
      1K20XK
     | 
      Eimac
     | 
      KLY
     | 
      1K20XK.pdf (893410 bytes)
   | 
    | 
      1K20XN-A
     | 
      Eimac
     | 
      KLY
     | 
      1K20XN-A.pdf (1051749 bytes)
   | 
    | 
      1K20XS
     | 
      Eimac
     | 
      KLY
     | 
      1K20XS.pdf (1023172 bytes)
   | 
    | 
      1K3
     | 
      General Electric
     | 
      R
     | 
      1K3.pdf (187098 bytes)
   | 
    | 
      1K3
     | 
      Tung-Sol
     | 
      R
     | 
      1K3.pdf (72212 bytes)
   | 
    | 
      1K3A
     | 
      General Electric
     | 
      R
     | 
      1K3A.pdf (329038 bytes)
   | 
    | 
      1K3A
     | 
      RCA (RC30)
     | 
      R
     | 
      1DG3A.pdf (181296 bytes)
   | 
    | 
      1K4
     | 
      AWV
     | 
      p
     | 
      1K5G.pdf (800499 bytes)
   | 
    | 
      1K5G
     | 
      AWV
     | 
      p
     | 
      1K5G.pdf (800499 bytes)
   | 
    | 
      1K6
     | 
      AWV
     | 
      ddp
     | 
      1K7G.pdf (580809 bytes)
   | 
    | 
      1K75CH
     | 
      Eimac
     | 
      KLY
     | 
      1K75CH.pdf (1074867 bytes)
   | 
    | 
      1K75CK
     | 
      Eimac
     | 
      KLY
     | 
      1K75CH.pdf (1074867 bytes)
   | 
    | 
      1K75CLA
     | 
      Eimac
     | 
      KLY
     | 
      1K75CLA.pdf (645309 bytes)
   | 
    | 
      1K75CS
     | 
      Eimac
     | 
      KLY
     | 
      1K75CS.pdf (1091660 bytes)
   | 
    | 
      1K7G
     | 
      AWV
     | 
      ddp
     | 
      1K7G.pdf (580809 bytes)
   | 
    | 
      1L33
     | 
      Tesla
     | 
      P
     | 
      1L33.pdf (950202 bytes) (cs)
   | 
    | 
      1L34
     | 
      Tesla
     | 
      P
     | 
      1L34.pdf (171279 bytes) (cs)
   | 
    | 
      1L4
     | 
      Mazda-Belvu
     | 
      p
     | 
      1L4.pdf (227407 bytes) (fr)
   | 
    | 
      1L4
     | 
      RCA (HB3)
     | 
      p
     | 
      1L4.pdf (108231 bytes)
   | 
    | 
      1L4
     | 
      Tung-Sol
     | 
      p
     | 
      1L4.pdf (81583 bytes)
   | 
    | 
      1L4
     | 
      Brimar
     | 
      p
     | 
      1L4.pdf (94889 bytes)
   | 
    | 
      1L5G
     | 
      AWV
     | 
      p
     | 
      1L5G.pdf (477260 bytes)
   | 
    | 
      1L6
     | 
      Sylvania
     | 
      H
     | 
      1L6.pdf (75314 bytes)
   | 
    | 
      1L6
     | 
      Tung-Sol
     | 
      H
     | 
      1L6.pdf (138747 bytes)
   | 
    | 
      1L6
     | 
      Sylvania
     | 
      H
     | 
      1L6.pdf (256156 bytes)
   | 
    
      1LA4  
     | 
      RCA (HB3)
     | 
      P
     | 
      1LA6.pdf (82221 bytes)
   | 
    | 
      1LA4
     | 
      Sylvania
     | 
      P
     | 
      1LA4.pdf (20364 bytes) (fr)
   | 
    | 
      1LA4
     | 
      Tung-Sol
     | 
      P
     | 
      1LA4.pdf (112138 bytes)
   | 
    | 
      1LA6
     | 
      RCA (HB3)
     | 
      H
     | 
      1LA6.pdf (82221 bytes)
   | 
    
      1LA6  
     | 
      Sylvania
     | 
      H
     | 
      1LA6.pdf (23169 bytes) (fr)
   | 
    | 
      1LA6
     | 
      Tung-Sol
     | 
      H
     | 
      1LA6.pdf (83767 bytes)
   | 
    | 
      1LB4
     | 
      RCA (HB3)
     | 
      P
     | 
      1LB4.pdf (26361 bytes)
   | 
    | 
      1LB4
     | 
      Tung-Sol
     | 
      P
     | 
      1LB4.pdf (118495 bytes)
   | 
    | 
      1LB6
     | 
      Sylvania
     | 
      H
     | 
      1LB6.pdf (40021 bytes)
   | 
    | 
      1LC5
     | 
      RCA (HB3)
     | 
      p
     | 
      1LC5.pdf (42340 bytes)
   | 
    | 
      1LC5
     | 
      Tung-Sol
     | 
      p
     | 
      1LC5.pdf (151713 bytes)
   | 
    | 
      1LC6
     | 
      RCA (HB3)
     | 
      H
     | 
      1LC6.pdf (73314 bytes)
   | 
    | 
      1LC6
     | 
      Tung-Sol
     | 
      H
     | 
      1LC6.pdf (67519 bytes)
   | 
    | 
      1LD5
     | 
      RCA (HB3)
     | 
      dp
     | 
      1LD5.pdf (44744 bytes)
   | 
    | 
      1LD5
     | 
      Tung-Sol
     | 
      dp
     | 
      1LD5.pdf (168120 bytes)
   | 
    | 
      1LE3
     | 
      RCA (HB3)
     | 
      t
     | 
      1LE3.pdf (35765 bytes)
   | 
    | 
      1LE3
     | 
      Tung-Sol
     | 
      t
     | 
      1LE3.pdf (117751 bytes)
   | 
    | 
      1LF3
     | 
      Sylvania
     | 
      t?
     | 
      1LF3.pdf (46162 bytes)
   | 
    | 
      1LG5
     | 
      RCA (HB3)
     | 
      p
     | 
      1LG5.pdf (45790 bytes)
   | 
    | 
      1LG5
     | 
      Tung-Sol
     | 
      p
     | 
      1LG5.pdf (204876 bytes)
   | 
    | 
      1LH4
     | 
      RCA (HB3)
     | 
      dt
     | 
      1LH4.pdf (26021 bytes)
   | 
    
      1LH4  
     | 
      Sylvania
     | 
      dt
     | 
      1LH4.pdf (19329 bytes) (fr)
   | 
    | 
      1LH4
     | 
      Tung-Sol
     | 
      dt
     | 
      1LH4.pdf (109138 bytes)
   | 
    | 
      1LN5
     | 
      RCA (HB3)
     | 
      p
     | 
      1LN5.pdf (40273 bytes)
   | 
    
      1LN5  
     | 
      Sylvania
     | 
      p
     | 
      1LN5.pdf (27379 bytes) (fr)
   | 
    | 
      1LN5
     | 
      Tung-Sol
     | 
      p
     | 
      1LN5.pdf (100042 bytes)
   | 
    | 
      1M3
     | 
      Amperex
     | 
      ti
     | 
      1M3.pdf (352764 bytes)
   | 
    | 
      1M5G
     | 
      AWV
     | 
      p
     | 
      1M5G.pdf (291230 bytes)
   | 
    | 
      1M90
     | 
      Tesla
     | 
      ti
     | 
      1M90.pdf (395013 bytes) (cs)
   | 
    | 
      1N2A
     | 
      RCA (HB3)
     | 
      R
     | 
      1N2A.pdf (91222 bytes)
   | 
    | 
      1N2A
     | 
      Sylvania
     | 
      R
     | 
      1N2A.pdf (79492 bytes)
   | 
    | 
      1N2A
     | 
      Tung-Sol
     | 
      R
     | 
      1N2A.pdf (57055 bytes)
   | 
    | 
      1N3
     | 
      Amperex
     | 
      ti
     | 
      1N3.pdf (339312 bytes)
   | 
    | 
      1N5G
     | 
      RCA (HB3)
     | 
      p
     | 
      1N5GT.pdf (120539 bytes)
   | 
    | 
      1N5G
     | 
      Sylvania
     | 
      p
     | 
      1N5G.pdf (59575 bytes) (fr)
   | 
    
      1N5GT  
     | 
      RCA (HB3)
     | 
      p
     | 
      1N5GT.pdf (120539 bytes)
   | 
    
      1N5GT    
     | 
      Sylvania
     | 
      p
     | 
      1A5GT.pdf (90355 bytes) (fr)
   | 
    
      1N5GT  
     | 
      Tung-Sol
     | 
      p
     | 
      1N5GT.pdf (72012 bytes)
   | 
    | 
      1N6G
     | 
      RCA (HB3)
     | 
      dP
     | 
      1N6G.pdf (36163 bytes)
   | 
    | 
      1N6G
     | 
      Sylvania
     | 
      dP
     | 
      1N6G.pdf (59114 bytes) (fr)
   | 
    | 
      1N6G
     | 
      Tung-Sol
     | 
      dP
     | 
      1N6G.pdf (47350 bytes)
   | 
    | 
      1N6GT
     | 
      Hytron
     | 
      dP
     | 
      1N2.pdf (76038 bytes)
   | 
    | 
      1NA31
     | 
      Tesla
     | 
      r?
     | 
      1NA31.pdf (225768 bytes) (cs)
   | 
    | 
      1NE9
     | 
      Tesla
     | 
      p
     | 
      1NE9.pdf (303737 bytes) (cs)
   | 
    | 
      1P10
     | 
      Mazda
     | 
      p
     | 
      1P10.pdf (86037 bytes)
   | 
    | 
      1P21
     | 
      RCA (HB3)
     | 
      PHM
     | 
      1P21.pdf (813469 bytes)
   | 
    | 
      1P22
     | 
      RCA (HB3)
     | 
      PHM
     | 
      1P22.pdf (450964 bytes)
   | 
    | 
      1P23
     | 
      GE
     | 
      PHT°
     | 
      1P23.pdf (50976 bytes)
   | 
    | 
      1P24
     | 
      GE
     | 
      PHT
     | 
      1P24.pdf (56828 bytes)
   | 
    | 
      1P25
     | 
      RCA
     | 
      PHT
     | 
      1P25.pdf (145667 bytes)
   | 
    | 
      1P26
     | 
      GE
     | 
      PHT
     | 
      1P26.pdf (50309 bytes)
   | 
    | 
      1P27
     | 
      GE
     | 
      PHT
     | 
      1P26.pdf (50309 bytes)
   | 
    
      1P28  
     | 
      RCA (HB3)
     | 
      PHM
     | 
      1P28.pdf (774332 bytes)
   | 
    | 
      1P28
     | 
      RCA
     | 
      PHM
     | 
      1P28.pdf (398008 bytes)
   | 
    | 
      1P28A
     | 
      RCA (HB3)
     | 
      PHM
     | 
      1P28.pdf (774332 bytes)
   | 
    | 
      1P29
     | 
      RCA (HB3)
     | 
      PHT°
     | 
      1P29.pdf (240850 bytes)
   | 
    | 
      1P29 (= GL1P29)
     | 
      General Electric
     | 
      PHT°
     | 
      GL1P29.pdf (503815 bytes)
   | 
    | 
      1P30
     | 
      ContinentalElectronics
     | 
      PHT
     | 
      1P30.pdf (50972 bytes)
   | 
    | 
      1P31
     | 
      ContinentalElectronics
     | 
      PHT°
     | 
      1P31.pdf (65403 bytes)
   | 
    | 
      1P32
     | 
      ContinentalElectronics
     | 
      PHT°
     | 
      1P32.pdf (50378 bytes)
   | 
    | 
      1P33
     | 
      ContinentalElectronics
     | 
      PHT°
     | 
      1P33.pdf (350565 bytes)
   | 
    | 
      1P34
     | 
      ContinentalElectronics
     | 
      PHT°
     | 
      1P34.pdf (54167 bytes)
   | 
    | 
      1P35
     | 
      RaulandCorp
     | 
      PHT°
     | 
      1P35.pdf (47862 bytes)
   | 
    | 
      1P36
     | 
      RaulandCorp
     | 
      PHT°
     | 
      1P36.pdf (49331 bytes)
   | 
    | 
      1P37
     | 
      RCA (HB3)
     | 
      PHT°
     | 
      1P37.pdf (252681 bytes)
   | 
    | 
      1P39
     | 
      RCA (HB3)
     | 
      PHT
     | 
      1P39.pdf (56557 bytes)
   | 
    | 
      1P40
     | 
      RCA (HB3)
     | 
      PHT°
     | 
      1P39.pdf (56557 bytes)
   | 
    | 
      1P41
     | 
      RCA (HB3)
     | 
      PHT
     | 
      1P41.pdf (284428 bytes)
   | 
    | 
      1P42
     | 
      RCA (HB3)
     | 
      PHT
     | 
      1P42.pdf (251355 bytes)
   | 
    | 
      1P5G
     | 
      Sylvania
     | 
      p
     | 
      1P5G.pdf (53515 bytes) (fr)
   | 
    | 
      1P5G
     | 
      Tung-Sol
     | 
      p
     | 
      1P5G.pdf (49559 bytes)
   | 
    | 
      1P5G
     | 
      Ken-Rad
     | 
      p
     | 
      1P5G.pdf (67918 bytes)
   | 
    | 
      1P5GT
     | 
      RCA (HB3)
     | 
      p
     | 
      1P5GT.pdf (83847 bytes)
   | 
    | 
      1P5GT
     | 
      Tung-Sol
     | 
      p
     | 
      1P5G.pdf (49559 bytes)
   | 
    | 
      1P5GT
     | 
      Hytron
     | 
      p
     | 
      1P5GT.pdf (41940 bytes)
   | 
    | 
      1Q21
     | 
      Westinghouse
     | 
      TRC
     | 
      1Q21.pdf (52481 bytes)
   | 
    | 
      1Q22
     | 
      Westinghouse
     | 
      RCY
     | 
      1Q22.pdf (57123 bytes)
   | 
    | 
      1Q23
     | 
      Westinghouse
     | 
      RCY
     | 
      1Q22.pdf (57123 bytes)
   | 
    | 
      1Q24
     | 
      Westinghouse
     | 
      RCY
     | 
      1Q22.pdf (57123 bytes)
   | 
    | 
      1Q25
     | 
      Westinghouse
     | 
      RCY
     | 
      1Q22.pdf (57123 bytes)
   | 
    | 
      1Q26
     | 
      GE
     | 
      RCY
     | 
      1Q26.pdf (35801 bytes)
   | 
    | 
      1Q26A
     | 
      GE
     | 
      RCY
     | 
      1Q26A.pdf (51089 bytes)
   | 
    | 
      1Q5G
     | 
      RCA (HB3)
     | 
      P
     | 
      1Q5GT.pdf (84712 bytes)
   | 
    | 
      1Q5G
     | 
      Sylvania
     | 
      P
     | 
      1Q5G.pdf (59087 bytes) (fr)
   | 
    | 
      1Q5G
     | 
      Tung-Sol
     | 
      P
     | 
      1Q5GT.pdf (111055 bytes)
   | 
    | 
      1Q5G
     | 
      Ken-Rad
     | 
      P
     | 
      1Q5G.pdf (26087 bytes)
   | 
    | 
      1Q5GT
     | 
      RCA (HB3)
     | 
      P
     | 
      1Q5GT.pdf (84712 bytes)
   | 
    | 
      1Q5GT
     | 
      Sylvania
     | 
      P
     | 
      1A5GT.pdf (90355 bytes) (fr)
   | 
    | 
      1Q5GT
     | 
      Tung-Sol
     | 
      P
     | 
      1Q5GT.pdf (111055 bytes)
   | 
    | 
      1Q6
     | 
      Sylvania
     | 
      dp
     | 
      1Q6.pdf (171409 bytes)
   | 
    | 
      1R1G
     | 
      Sylvania
     | 
      c
     | 
      1K1etc.pdf (26342 bytes)
   | 
    | 
      1R21
     | 
      Westinghouse
     | 
      IGN
     | 
      1R21.pdf (56081 bytes)
   | 
    | 
      1R4
     | 
      Sylvania
     | 
      r
     | 
      1R4.pdf (27631 bytes)
   | 
    | 
      1R5
     | 
      Mazda-Belvu
     | 
      H
     | 
      1R5.pdf (242689 bytes) (fr)
   | 
    | 
      1R5
     | 
      General Electric
     | 
      H
     | 
      1R5.pdf (282731 bytes)
   | 
    | 
      1R5
     | 
      Tung-Sol
     | 
      H
     | 
      1R5.pdf (212771 bytes)
   | 
    | 
      1R5
     | 
      Brimar
     | 
      H
     | 
      1R5.pdf (98113 bytes)
   | 
    | 
      1R5-SF (= 1AQ5)
     | 
      EIAJ
     | 
      dp
     | 
      1AQ5.pdf (201325 bytes)
   | 
    | 
      1R5WA
     | 
      Tung-Sol
     | 
      H
     | 
      1R5WA.pdf (305786 bytes)
   | 
    | 
      1R5WA
     | 
      Raytheon
     | 
      H
     | 
      1R5WA.pdf (643264 bytes)
   | 
    | 
      1S1G
     | 
      Sylvania
     | 
      c
     | 
      1S1G.pdf (23805 bytes)
   | 
    | 
      1S22
     | 
      Tung-Sol
     | 
      VSW
     | 
      1S22.pdf (61786 bytes)
   | 
    | 
      1S2A
     | 
      Amperex
     | 
      R
     | 
      1S2A.pdf (108031 bytes)
   | 
    | 
      1S2A
     | 
      Tung-Sol
     | 
      R
     | 
      1S2A.pdf (84151 bytes)
   | 
    | 
      1S2A
     | 
      Rogers
     | 
      R
     | 
      1S2A.pdf (23734 bytes)
   | 
    | 
      1S4
     | 
      RCA (HB3)
     | 
      P
     | 
      1S4.pdf (249111 bytes)
   | 
    
      1S4  
     | 
      Tung-Sol
     | 
      P
     | 
      1S4.pdf (167475 bytes)
   | 
    | 
      1S4
     | 
      Brimar
     | 
      P
     | 
      1R5.pdf (98113 bytes)
   | 
    | 
      1S5
     | 
      Mazda-Belvu
     | 
      dp
     | 
      1S5.pdf (326903 bytes) (fr)
   | 
    | 
      1S5
     | 
      General Electric
     | 
      dp
     | 
      1S5.pdf (411995 bytes)
   | 
    
      1S5  
     | 
      Tung-Sol
     | 
      dp
     | 
      1S5.pdf (226561 bytes)
   | 
    | 
      1S5
     | 
      Brimar
     | 
      dp
     | 
      1S5.pdf (92782 bytes)
   | 
    | 
      1S5-SF (= 1AR5)
     | 
      EIAJ
     | 
       
     | 
      1AR5.pdf (245304 bytes)
   | 
    | 
      1S6
     | 
      Sylvania
     | 
      dp
     | 
      1S6.pdf (43451 bytes)
   | 
    | 
      1SA6GT
     | 
      Tung-Sol
     | 
      p
     | 
      1SA6GT.pdf (44883 bytes)
   | 
    | 
      1SB6GT
     | 
      Tung-Sol
     | 
      dp
     | 
      1SB6GT.pdf (51209 bytes)
   | 
    | 
      1T1G
     | 
      Sylvania
     | 
      c
     | 
      1K1etc.pdf (26342 bytes)
   | 
    | 
      1T2
     | 
      Brimar
     | 
      R
     | 
      1T2.pdf (54481 bytes)
   | 
    | 
      1T2
     | 
      STC/Brimar
     | 
      R
     | 
      1T2.pdf (58164 bytes)
   | 
    | 
      1T4
     | 
      Mazda-Belvu
     | 
      p
     | 
      1T4.pdf (318621 bytes) (fr)
   | 
    | 
      1T4
     | 
      General Electric
     | 
      p
     | 
      1T4.pdf (275717 bytes)
   | 
    
      1T4  
     | 
      Tung-Sol
     | 
      p
     | 
      1T4.pdf (150099 bytes)
   | 
    | 
      1T4
     | 
      Brimar
     | 
      p
     | 
      1T4.pdf (98806 bytes)
   | 
    | 
      1T4-SF (= 1AM4)
     | 
      EIAJ
     | 
      p
     | 
      1AM4.pdf (183987 bytes)
   | 
    | 
      1T4WA
     | 
      Tung-Sol
     | 
      p
     | 
      1T4WA.pdf (245256 bytes)
   | 
    | 
      1T4WA
     | 
      Raytheon
     | 
      p
     | 
      1T4WA.pdf (562006 bytes)
   | 
    
      1T5GT  
     | 
      RCA (HB3)
     | 
      P
     | 
      1T5GT.pdf (29021 bytes)
   | 
    | 
      1T5GT
     | 
      Tung-Sol
     | 
      P
     | 
      1T5GT.pdf (50870 bytes)
   | 
    | 
      1T6
     | 
      RCA (HB3)
     | 
      dp
     | 
      1T6.pdf (255991 bytes)
   | 
    | 
      1U1
     | 
      NU
     | 
      c
     | 
      1U1.pdf (28492 bytes)
   | 
    | 
      1U4
     | 
      General Electric
     | 
      p
     | 
      1U4.pdf (333214 bytes)
   | 
    
      1U4  
     | 
      Tung-Sol
     | 
      p
     | 
      1U4.pdf (105675 bytes)
   | 
    | 
      1U4WA
     | 
      Tung-Sol
     | 
      p
     | 
      1U4WA.pdf (193447 bytes)
   | 
    | 
      1U4WA
     | 
      Raytheon
     | 
      p
     | 
      1U4WA.pdf (463977 bytes)
   | 
    | 
      1U5
     | 
      General Electric
     | 
      dp
     | 
      1U5.pdf (336392 bytes)
   | 
    | 
      1U5
     | 
      Tung-Sol
     | 
      dp
     | 
      1U5.pdf (224680 bytes)
   | 
    | 
      1U5
     | 
      Brimar
     | 
      dp
     | 
      1U5.pdf (41369 bytes)
   | 
    | 
      1U5-SF (= 1AS5)
     | 
      EIAJ
     | 
      dp
     | 
      1AS5.pdf (243393 bytes)
   | 
    | 
      1U5WA
     | 
      Tung-Sol
     | 
      dp
     | 
      1U5WA.pdf (227757 bytes)
   | 
    | 
      1U5WA
     | 
      Raytheon
     | 
      dp
     | 
      1U5WA.pdf (508521 bytes)
   | 
    | 
      1U6
     | 
      Tung-Sol
     | 
      H
     | 
      1U6.pdf (76852 bytes)
   | 
    | 
      1U6
     | 
      Sylvania
     | 
      H
     | 
      1U6.pdf (57105 bytes)
   | 
    | 
      1V
     | 
      RCA
     | 
      r
     | 
      1V.pdf (41281 bytes)
   | 
    | 
      1V
     | 
      RCA (HB3)
     | 
      r
     | 
      1V.pdf (86595 bytes)
   | 
    | 
      1V
     | 
      Sylvania
     | 
      r
     | 
      1V.pdf (80206 bytes) (fr)
   | 
    | 
      1V
     | 
      Tung-Sol
     | 
      r
     | 
      1V.pdf (88774 bytes)
   | 
    | 
      1V1
     | 
      NU
     | 
      c
     | 
      1V1.pdf (29847 bytes)
   | 
    
      1V2  
     | 
      RCA (HB3)
     | 
      R
     | 
      1V2.pdf (76880 bytes)
   | 
    | 
      1V2
     | 
      General Electric
     | 
      R
     | 
      1V2.pdf (156892 bytes)
   | 
    | 
      1V2
     | 
      Tung-Sol
     | 
      R
     | 
      1V2.pdf (74773 bytes)
   | 
    
      1V2  
     | 
      RCA (RC30)
     | 
      R
     | 
      1V2.pdf (134324 bytes)
   | 
    | 
      1V5
     | 
      Sylvania
     | 
      P
     | 
      1V5.pdf (147783 bytes)
   | 
    | 
      1V5
     | 
      Sylvania
     | 
      P
     | 
      1V5.pdf (118200 bytes)
   | 
    | 
      1V6
     | 
      Tung-Sol
     | 
      tp
     | 
      1V6.pdf (73481 bytes)
   | 
    | 
      1W1
     | 
      Sylvania
     | 
       
     | 
      1W1.pdf (71993 bytes)
   | 
    | 
      1W4
     | 
      Tung-Sol
     | 
      P
     | 
      1W4.pdf (53201 bytes)
   | 
    | 
      1W5
     | 
      Sylvania
     | 
      p
     | 
      1W5.pdf (277543 bytes)
   | 
    | 
      1W5
     | 
      Sylvania
     | 
      p
     | 
      1W5.pdf (190959 bytes)
   | 
    | 
      1W80
     | 
      Toshiba
     | 
      TWT
     | 
      1W80_Toshiba.pdf (2477690 bytes)
   | 
    | 
      1X2
     | 
      Tung-Sol
     | 
      R
     | 
      1X2.pdf (40014 bytes)
   | 
    | 
      1X2A
     | 
      General Electric
     | 
      R
     | 
      1X2A.pdf (175411 bytes)
   | 
    | 
      1X2A
     | 
      Tung-Sol
     | 
      R
     | 
      1X2A.pdf (81467 bytes)
   | 
    | 
      1X2B
     | 
      RCA (HB3)
     | 
      R
     | 
      1X2B.pdf (84683 bytes)
   | 
    | 
      1X2B
     | 
      General Electric
     | 
      R
     | 
      1X2B.pdf (147860 bytes)
   | 
    | 
      1X2B
     | 
      Tung-Sol
     | 
      R
     | 
      1X2B.pdf (57722 bytes)
   | 
    | 
      1X2B (= R19)
     | 
      Brimar
     | 
      R
     | 
      R19.pdf (40200 bytes)
   | 
    | 
      1X2C
     | 
      RCA (RC30)
     | 
      R
     | 
      1V2.pdf (134324 bytes)
   | 
    | 
      1Y1
     | 
      Sylvania
     | 
      c
     | 
      1Y1.pdf (30900 bytes)
   | 
    | 
      1Y2
     | 
      Chatham
     | 
      R
     | 
      1Y2.pdf (45639 bytes)
   | 
    | 
      1Y32
     | 
      Tesla
     | 
      R
     | 
      1Y32.pdf (283616 bytes) (cs)
   | 
    | 
      1Y32T
     | 
      Tesla
     | 
      R
     | 
      1Y32T.pdf (180067 bytes) (cs)
   | 
    | 
      1Z1
     | 
      RFT
     | 
      R
     | 
      1Z1.pdf (59469 bytes) (de)
   | 
    | 
      1Z1
     | 
      Sylvania
     | 
      R
     | 
      1Y1.pdf (30900 bytes)
   | 
    
      1Z17B 1 17 
     | 
      Soviet
     | 
      p
     | 
      1Z17B.pdf (1428930 bytes) (ru)
   | 
    | 
      1Z2
     | 
      Tung-Sol
     | 
      R
     | 
      1Z2.pdf (128438 bytes)
   | 
    | 
      1Z2
     | 
      CSF
     | 
      R
     | 
      1Z2.pdf (2936734 bytes) (fr)
   |