| 
        Electron tube Type
       | 
        Brand
       | 
        System
       | 
        Data sheet
   | 
    
      6N13S 6 13   
     | 
      Soviet
     | 
      TT
     | 
      6N13S.pdf (73199 bytes)
   | 
    
      6N14P 6 14 
     | 
      Soviet
     | 
      tt
     | 
      6N14P.pdf (83297 bytes)
   | 
    
      6N14P 6 14 
     | 
      Soviet
     | 
      tt
     | 
      6N14P.pdf (136337 bytes)
   | 
    
      6N15P 6 15       
     | 
      Soviet
     | 
      tt
     | 
      6N15P.pdf (91282 bytes)
   | 
    
      6N16B 6 16 
     | 
      Soviet
     | 
      tt
     | 
      6N16B.pdf (109052 bytes)
   | 
    
      6N17B 6 17 
     | 
      Soviet
     | 
      tt
     | 
      6N17B.pdf (106885 bytes)
   | 
    | 
      6N1P
     | 
      Svetlana
     | 
      tt
     | 
      6N1Pspec.pdf (38608 bytes)
   | 
    
      6N1PEV 6 1   
     | 
      Soviet
     | 
      tt
     | 
      6N1PEV.pdf (106610 bytes)
   | 
    
      6N1PVI 6 1   
     | 
      Soviet
     | 
      tt
     | 
      6N1PVI.pdf (237900 bytes)
   | 
    
      6N1P 6 1 
     | 
      Soviet
     | 
      tt
     | 
      6N1P.pdf (254749 bytes)
   | 
    
      6N1P 6 1 
     | 
      Soviet
     | 
      tt
     | 
      6N1P.pdf (136788 bytes)
   | 
    | 
      6N1
     | 
      Shuguang
     | 
      tt
     | 
      6N1.pdf (180256 bytes) (zh)
   | 
    
      6N21B 6 21 
     | 
      Soviet
     | 
      tt
     | 
      6N21B.pdf (76753 bytes)
   | 
    
      6N23PEV 6 23   
     | 
      Soviet
     | 
      tt
     | 
      6N23PEV.pdf (348460 bytes)
   | 
    
      6N23P 6 23 
     | 
      Soviet
     | 
      tt
     | 
      6N23P.pdf (377581 bytes)
   | 
    
      6N24P 6 24 
     | 
      Soviet
     | 
      tt
     | 
      6N24P.pdf (69092 bytes)
   | 
    
      6N27P 6 27 
     | 
      Soviet
     | 
      tt
     | 
      6N27P.pdf (296354 bytes)
   | 
    
      6N2PEV 6 2   
     | 
      Soviet
     | 
      tt
     | 
      6N2PEV.pdf (245006 bytes)
   | 
    
      6N2P 6 2 
     | 
      Soviet
     | 
      tt
     | 
      6N2P.pdf (107000 bytes)
   | 
    | 
      6N2
     | 
      Shuguang
     | 
      tt
     | 
      6N2.pdf (172934 bytes) (zh)
   | 
    | 
      6N3
     | 
      Rogers
     | 
      r
     | 
      6N3.pdf (114505 bytes)
   | 
    
      6N3PE 6 3  
     | 
      Soviet
     | 
      tt
     | 
      6N3PE.pdf (147458 bytes)
   | 
    
      6N3PI 6 3  
     | 
      Soviet
     | 
      tt
     | 
      6N3PI.pdf (177714 bytes)
   | 
    
      6N3P 6 3   
     | 
      Soviet
     | 
      tt
     | 
      6N3P.pdf (103935 bytes)
   | 
    | 
      6N4
     | 
      Tung-Sol
     | 
      t
     | 
      6N4.pdf (59371 bytes)
   | 
    | 
      6N5
     | 
      RCA (HB3)
     | 
      ti
     | 
      6AB5.pdf (85710 bytes)
   | 
    | 
      6N5
     | 
      Sylvania
     | 
      ti
     | 
      6N5.pdf (55397 bytes) (fr)
   | 
    | 
      6N5 (= 6AB5)
     | 
      Tung-Sol
     | 
      ti
     | 
      6AB5.pdf (80951 bytes)
   | 
    | 
      6N5
     | 
      NU
     | 
      ti
     | 
      6N5.pdf (20986 bytes)
   | 
    
      6N5P 6 5 
     | 
      Soviet
     | 
      tt
     | 
      6N5P.pdf (94756 bytes)
   | 
    | 
      6N5P
     | 
      Shuguang
     | 
      TT
     | 
      6N5P.pdf (117271 bytes) (zh)
   | 
    | 
      6N6
     | 
      Ken-Rad
     | 
      tT
     | 
      6N6.pdf (62998 bytes)
   | 
    | 
      6N6G
     | 
      RCA (HB3)
     | 
      tt
     | 
      6N6G.pdf (40424 bytes)
   | 
    | 
      6N6G
     | 
      Sylvania
     | 
      tt
     | 
      6N6G.pdf (110175 bytes)
   | 
    | 
      6N6G
     | 
      Sylvania
     | 
      tt
     | 
      6N6G.pdf (20432 bytes) (fr)
   | 
    | 
      6N6G
     | 
      Tung-Sol
     | 
      tt
     | 
      6N6G.pdf (70074 bytes)
   | 
    | 
      6N6MG
     | 
      Triad
     | 
      tt
     | 
      6N6MG.pdf (204886 bytes)
   | 
    
      6N6PI 6 6  
     | 
      Soviet
     | 
      tt
     | 
      6N6PI.pdf (183956 bytes)
   | 
    
      6N6PI 6 6  
     | 
      Soviet
     | 
      tt
     | 
      6N6PI.pdf (78456 bytes)
   | 
    
      6N6P 6 6 
     | 
      Soviet
     | 
      TT
     | 
      6N6P.pdf (142269 bytes)
   | 
    | 
      6N7
     | 
      RCA
     | 
      TT
     | 
      6N7.pdf (78887 bytes)
   | 
    | 
      6N7
     | 
      RCA (HB3)
     | 
      TT
     | 
      6N7.pdf (149383 bytes)
   | 
    | 
      6N7
     | 
      RFT
     | 
      TT
     | 
      6N7.pdf (86617 bytes) (de)
   | 
    | 
      6N7
     | 
      General Electric
     | 
      TT
     | 
      6N7.pdf (267626 bytes)
   | 
    | 
      6N7
     | 
      Sylvania
     | 
      TT
     | 
      6N7.pdf (24222 bytes) (fr)
   | 
    | 
      6N7
     | 
      Tung-Sol
     | 
      TT
     | 
      6N7.pdf (102497 bytes)
   | 
    | 
      6N7G
     | 
      RCA (HB3)
     | 
      TT
     | 
      6N7.pdf (149383 bytes)
   | 
    | 
      6N7G
     | 
      Sylvania
     | 
      TT
     | 
      6N7.pdf (24222 bytes) (fr)
   | 
    | 
      6N7G
     | 
      Tung-Sol
     | 
      TT
     | 
      6N7.pdf (102497 bytes)
   | 
    | 
      6N7G
     | 
      Brimar
     | 
      TT
     | 
      6N7G.pdf (54642 bytes)
   | 
    | 
      6N7GT
     | 
      RCA (HB3)
     | 
      TT
     | 
      6N7.pdf (149383 bytes)
   | 
    
      6N7GT  
     | 
      Tung-Sol
     | 
      TT
     | 
      6N7.pdf (102497 bytes)
   | 
    | 
      6N7GT
     | 
      Brimar
     | 
      TT
     | 
      6N7G.pdf (54642 bytes)
   | 
    | 
      6N7P
     | 
      Shuguang
     | 
      tt
     | 
      6N7P.pdf (194257 bytes) (zh)
   | 
    
      6N7S 6 7 
     | 
      Soviet
     | 
      tt
     | 
      6N7S.pdf (97183 bytes)
   | 
    | 
      6N8 (= EBF80)
     | 
      Mazda-Belvu
     | 
      ddp
     | 
      EBF80.pdf (455701 bytes) (fr)
   | 
    | 
      6N8 (= EBF80)
     | 
      RFT
     | 
      ddp
     | 
      EBF80.pdf (136652 bytes) (de)
   | 
    | 
      6N8 (= EBF80)
     | 
      Brimar
     | 
      ddp
     | 
      EBF80.pdf (63136 bytes)
   | 
    | 
      6N8
     | 
      Philips
     | 
      ddp
     | 
      6N8.pdf (329236 bytes)
   | 
    | 
      6N8P
     | 
      Shuguang
     | 
      tt
     | 
      6N8P.pdf (194673 bytes) (zh)
   | 
    
      6N8S 6 8 
     | 
      Soviet
     | 
      tt
     | 
      6N8S.pdf (102777 bytes)
   | 
    | 
      6N9P
     | 
      Shuguang
     | 
      tt
     | 
      6N9P.pdf (193635 bytes) (zh)
   | 
    
      6N9S 6 9 
     | 
      Soviet
     | 
      tt
     | 
      6N9S.pdf (94066 bytes)
   | 
    | 
      6NO45T
     | 
      Amperex
     | 
      REL
     | 
      6NO45T.pdf (422033 bytes)
   | 
    | 
      6P13P
     | 
      Shuguang
     | 
      P
     | 
      6P13P.pdf (145351 bytes) (zh)
   | 
    
      6P13S 6 13 
     | 
      Soviet
     | 
      P
     | 
      6P13S.pdf (94982 bytes)
   | 
    
      6P14P 6 14   
     | 
      Soviet
     | 
      P
     | 
      6P14P.pdf (175995 bytes)
   | 
    
      6P15P 6 15 
     | 
      Soviet
     | 
      P
     | 
      6P15P.pdf (218688 bytes)
   | 
    | 
      6P17
     | 
      AEI
     | 
      P
     | 
      6P17.pdf (108469 bytes)
   | 
    
      6P18P 6 18 
     | 
      Soviet
     | 
      P
     | 
      6P18P.pdf (168270 bytes)
   | 
    
      6P1PEV 6 1   
     | 
      Soviet
     | 
      P
     | 
      6P1PEV.pdf (91617 bytes)
   | 
    
      6P1P 6 1   
     | 
      Soviet
     | 
      P
     | 
      6P1P.pdf (127251 bytes)
   | 
    | 
      6P1
     | 
      Shuguang
     | 
      P
     | 
      6P1.pdf (126320 bytes) (zh)
   | 
    
      6P20S 6 20 
     | 
      Soviet
     | 
      P
     | 
      6P20S.pdf (81528 bytes)
   | 
    
      6P25  
     | 
      Mazda
     | 
      P
     | 
      6P25.pdf (76840 bytes)
   | 
    
      6P27S 6 27 
     | 
      Soviet
     | 
      P
     | 
      6P27S.pdf (1804794 bytes) (ru)
   | 
    
      6P30B 6 30 
     | 
      Soviet
     | 
      P
     | 
      6P30B.pdf (101498 bytes)
   | 
    
      6P31S 6 31 
     | 
      Soviet
     | 
      P
     | 
      6P31S.pdf (86018 bytes)
   | 
    
      6P36S 6 36 
     | 
      Soviet
     | 
      P
     | 
      6P36S.pdf (109328 bytes)
   | 
    | 
      6P3P
     | 
      Shuguang
     | 
      P
     | 
      6P3P.pdf (152928 bytes) (zh)
   | 
    
      6P3SE 6 3  
     | 
      Soviet
     | 
      P
     | 
      6P3S-E.pdf (63229 bytes)
   | 
    
      6P3S 6 3 
     | 
      Soviet
     | 
      P
     | 
      6P3S.pdf (46807 bytes)
   | 
    | 
      6P5G
     | 
      RCA (HB3)
     | 
      t
     | 
      6P5G.pdf (39122 bytes)
   | 
    | 
      6P5G
     | 
      Sylvania
     | 
      t
     | 
      6P5G.pdf (20101 bytes) (fr)
   | 
    | 
      6P5G
     | 
      Tung-Sol
     | 
      t
     | 
      6P5GT.pdf (103345 bytes)
   | 
    | 
      6P5G
     | 
      Triad
     | 
      t
     | 
      6P5G.pdf (28632 bytes)
   | 
    | 
      6P5GT
     | 
      RCA (HB3)
     | 
      t
     | 
      6P5G.pdf (39122 bytes)
   | 
    | 
      6P5GT
     | 
      Tung-Sol
     | 
      t
     | 
      6P5GT.pdf (103345 bytes)
   | 
    | 
      6P5GT
     | 
      Ken-Rad
     | 
      t
     | 
      6P5GT.pdf (33012 bytes)
   | 
    | 
      6P6
     | 
      AWV
     | 
       
     | 
      6P6.pdf (53326 bytes)
   | 
    | 
      6P6P
     | 
      Shuguang
     | 
      P
     | 
      6P6P.pdf (192017 bytes) (zh)
   | 
    
      6P6S 6 6 
     | 
      Soviet
     | 
      P
     | 
      6P6S.pdf (470037 bytes) (bg)
   | 
    
      6P6S 6 6   
     | 
      Soviet
     | 
      P
     | 
      6P6S.pdf (94364 bytes)
   | 
    | 
      6P7G
     | 
      RCA (HB3)
     | 
      tp
     | 
      6P7G.pdf (30983 bytes)
   | 
    | 
      6P7G
     | 
      Sylvania
     | 
      tp
     | 
      6P7G.pdf (25042 bytes) (fr)
   | 
    | 
      6P8G
     | 
      STC/Brimar
     | 
      th
     | 
      6P8G.pdf (33736 bytes)
   | 
    | 
      6P9 (= 6BM5)
     | 
      Mazda-Belvu
     | 
      P
     | 
      6BM5.pdf (408583 bytes) (fr)
   | 
    | 
      6P9P
     | 
      Shuguang
     | 
      P
     | 
      6P9P.pdf (198205 bytes) (zh)
   | 
    
      6P9 6 9
     | 
      Soviet
     | 
      P
     | 
      6P9.pdf (154961 bytes)
   | 
    
      6Q11   (= 6K11)
     | 
      RCA (HB3)
     | 
      ttt
     | 
      6K11.pdf (131155 bytes)
   | 
    | 
      6Q11
     | 
      Tung-Sol
     | 
      ttt
     | 
      6Q11.pdf (81130 bytes)
   | 
    | 
      6Q4 (= EC80)
     | 
      Philips
     | 
      t
     | 
      EC80.pdf (140549 bytes)
   | 
    | 
      6Q5G
     | 
      Du Mont
     | 
      t°
     | 
      2B4.pdf (79126 bytes)
   | 
    | 
      6Q6G
     | 
      Sylvania
     | 
      dt
     | 
      6Q6G.pdf (39725 bytes)
   | 
    | 
      6Q7
     | 
      RCA
     | 
      ddt
     | 
      6Q7.pdf (39400 bytes)
   | 
    | 
      6Q7
     | 
      RCA (HB3)
     | 
      ddt
     | 
      6Q7.pdf (171390 bytes)
   | 
    | 
      6Q7
     | 
      Sylvania
     | 
      ddt
     | 
      6Q7.pdf (68367 bytes) (fr)
   | 
    | 
      6Q7
     | 
      Tung-Sol
     | 
      ddt
     | 
      6Q7.pdf (123623 bytes)
   | 
    | 
      6Q7G
     | 
      RCA (HB3)
     | 
      ddt
     | 
      6Q7.pdf (171390 bytes)
   | 
    | 
      6Q7G
     | 
      Sylvania
     | 
      ddt
     | 
      6Q7.pdf (68367 bytes) (fr)
   | 
    | 
      6Q7G
     | 
      Tung-Sol
     | 
      ddt
     | 
      6Q7.pdf (123623 bytes)
   | 
    | 
      6Q7G
     | 
      Brimar
     | 
      ddt
     | 
      6N7G.pdf (54642 bytes)
   | 
    | 
      6Q7GT
     | 
      RCA (HB3)
     | 
      ddt
     | 
      6Q7.pdf (171390 bytes)
   | 
    | 
      6Q7GT
     | 
      Sylvania
     | 
      ddt
     | 
      6J7GT.pdf (111793 bytes) (fr)
   | 
    | 
      6Q7GT
     | 
      Tung-Sol
     | 
      ddt
     | 
      6Q7.pdf (123623 bytes)
   | 
    | 
      6Q7GT
     | 
      Brimar
     | 
      ddt
     | 
      6N7G.pdf (54642 bytes)
   | 
    | 
      6Q7GT
     | 
      Hytron
     | 
      ddt
     | 
      6Q7GT.pdf (68395 bytes)
   | 
    | 
      6R-HH2
     | 
      Hitachi
     | 
      tt
     | 
      6R-HH2.pdf (80659 bytes) (jp)
   | 
    | 
      6R-HH2
     | 
      Hitachi
     | 
      tt
     | 
      6R-HH2.pdf (92264 bytes)
   | 
    | 
      6R-HH8 (= 6KN8)
     | 
      Hitachi
     | 
      tt
     | 
      4KN8.pdf (133612 bytes)
   | 
    | 
      6R-P10
     | 
      Hitachi
     | 
      P
     | 
      6R-P10.pdf (44548 bytes)
   | 
    | 
      6R3
     | 
      Rogers
     | 
      R
     | 
      6R3.pdf (97847 bytes)
   | 
    | 
      6R4 (= EC81)
     | 
      Philips
     | 
      t
     | 
      EC81.pdf (336712 bytes)
   | 
    | 
      6R6G
     | 
      Arcturus
     | 
      p
     | 
      6R6G.pdf (54782 bytes)
   | 
    | 
      6R7
     | 
      RCA
     | 
      ddt
     | 
      6R7.pdf (39103 bytes)
   | 
    | 
      6R7
     | 
      RCA (HB3)
     | 
      ddt
     | 
      6R7.pdf (101439 bytes)
   | 
    | 
      6R7
     | 
      Sylvania
     | 
      ddt
     | 
      6R7.pdf (55907 bytes) (fr)
   | 
    | 
      6R7
     | 
      Tung-Sol
     | 
      ddt
     | 
      6R7.pdf (116121 bytes)
   | 
    | 
      6R7G
     | 
      RCA (HB3)
     | 
      ddt
     | 
      6R7.pdf (101439 bytes)
   | 
    | 
      6R7G
     | 
      Sylvania
     | 
      ddt
     | 
      6R7.pdf (55907 bytes) (fr)
   | 
    | 
      6R7G
     | 
      Tung-Sol
     | 
      ddt
     | 
      6R7.pdf (116121 bytes)
   | 
    | 
      6R7G
     | 
      Brimar
     | 
      ddt
     | 
      6R7G.pdf (51092 bytes)
   | 
    | 
      6R7GT
     | 
      RCA (HB3)
     | 
      ddt
     | 
      6R7.pdf (101439 bytes)
   | 
    | 
      6R7GT
     | 
      Tung-Sol
     | 
      ddt
     | 
      6R7.pdf (116121 bytes)
   | 
    | 
      6R7GT
     | 
      Hytron
     | 
      ddt
     | 
      6R7GT.pdf (26632 bytes)
   | 
    | 
      6R8
     | 
      Tung-Sol
     | 
      dddt
     | 
      6R8.pdf (113864 bytes)
   | 
    | 
      6RK19
     | 
      RCA (RC30)
     | 
      R
     | 
      6BN11.pdf (549900 bytes)
   | 
    | 
      6RK19 (= 6BR3)
     | 
      Toshiba
     | 
      R
     | 
      6BR3.pdf (90838 bytes)
   | 
    
      6S17KV 6 17  
     | 
      Soviet
     | 
      t
     | 
      6S17KV.pdf (116220 bytes)
   | 
    
      6S19P 6 19     
     | 
      Soviet
     | 
      T
     | 
      6S19P.pdf (76635 bytes)
   | 
    
      6S1P 6 1 
     | 
      Soviet
     | 
      t
     | 
      6S1P.pdf (68741 bytes)
   | 
    
      6S1Z 6 1 
     | 
      Soviet
     | 
      t
     | 
      6S1Z.pdf (68018 bytes)
   | 
    | 
      6S2
     | 
      Rogers
     | 
      R
     | 
      6S2.pdf (161429 bytes)
   | 
    
      6S20S 6 20 
     | 
      Soviet
     | 
      T
     | 
      6S20S.pdf (66518 bytes)
   | 
    
      6S21D 6 21 
     | 
      Soviet
     | 
      t~
     | 
      6S21D.pdf (43942 bytes)
   | 
    | 
      6S2A
     | 
      Rogers
     | 
      R
     | 
      6S2A.pdf (22576 bytes)
   | 
    
      6S2P 6 2   
     | 
      Soviet
     | 
      t
     | 
      6S2P.pdf (65432 bytes)
   | 
    
      6S2S 6 2 
     | 
      Soviet
     | 
      t
     | 
      6S2S.pdf (28978 bytes)
   | 
    
      6S2S 6 2 
     | 
      Soviet
     | 
      t
     | 
      6S2S.pdf (58727 bytes)
   | 
    
      6S31B 6 31 
     | 
      Soviet
     | 
      t
     | 
      6S31B.pdf (76638 bytes)
   | 
    
      6S32B 6 32 
     | 
      Soviet
     | 
      t
     | 
      6S32B.pdf (80241 bytes)
   | 
    
      6S33SV 6 33  
     | 
      Electronintorg
     | 
      T
     | 
      6S33SV.pdf (222505 bytes)
   | 
    
      6S33S 6 33   
     | 
      Electronintorg
     | 
      T
     | 
      6S33S.pdf (222115 bytes)
   | 
    
      6S33S 6 33   
     | 
      Soviet
     | 
      T
     | 
      6S33S.pdf (106698 bytes)
   | 
    
      6S3PEV 6 3   
     | 
      Soviet
     | 
      t
     | 
      6S3PEV.pdf (205392 bytes)
   | 
    
      6S3PE 6 3  
     | 
      Soviet
     | 
      t
     | 
      6S3PE.pdf (85423 bytes)
   | 
    | 
      6S4
     | 
      Tung-Sol
     | 
      T
     | 
      6S4.pdf (102979 bytes)
   | 
    
      6S40P 6 40 
     | 
      Soviet
     | 
      T
     | 
      6S40P.pdf (155140 bytes)
   | 
    
      6S41S 6 41   
     | 
      Electronintorg
     | 
      T
     | 
      6S41S.pdf (160320 bytes)
   | 
    
      6S45PE 6 45  
     | 
      Soviet
     | 
      t
     | 
      6S45PE.pdf (118155 bytes)
   | 
    | 
      6S4A
     | 
      RCA (HB3)
     | 
      T
     | 
      6S4A.pdf (118078 bytes)
   | 
    | 
      6S4A
     | 
      General Electric
     | 
      T
     | 
      6S4A.pdf (384206 bytes)
   | 
    | 
      6S4A
     | 
      Tung-Sol
     | 
      T
     | 
      6S4A.pdf (116153 bytes)
   | 
    | 
      6S4A
     | 
      RCA (RC30)
     | 
      T
     | 
      6S4A.pdf (108423 bytes)
   | 
    
      6S4PEV 6 4   
     | 
      Soviet
     | 
      t
     | 
      6S4PEV.pdf (198390 bytes)
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      6S4S 6 4 
     | 
      Soviet
     | 
      T
     | 
      6S4S.pdf (64633 bytes)
   | 
    | 
      6S5
     | 
      Rogers
     | 
      ti
     | 
      6S5.pdf (25436 bytes)
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      6S5DI 6 5  
     | 
      Soviet
     | 
      t~
     | 
      6S5DI.pdf (56028 bytes)
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      6S5D 6 5 
     | 
      Soviet
     | 
      t~
     | 
      6S5D.pdf (71032 bytes)
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      6S62N 6 62 
     | 
      Soviet
     | 
      t
     | 
      6S62N.pdf (83537 bytes)
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    | 
      6S6GT
     | 
      Ken-Rad
     | 
      p
     | 
      6S6GT.pdf (123006 bytes)
   | 
    
      6S7  
     | 
      RCA (HB3)
     | 
      p
     | 
      6S7.pdf (111401 bytes)
   | 
    | 
      6S7
     | 
      Tung-Sol
     | 
      p
     | 
      6S7.pdf (50978 bytes)
   | 
    | 
      6S7
     | 
      RCA
     | 
      p
     | 
      6S7.pdf (141794 bytes)
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      6S7B 6 7 
     | 
      Soviet
     | 
      t
     | 
      6S7B.pdf (94279 bytes)
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    | 
      6S7G
     | 
      RCA (HB3)
     | 
      p
     | 
      6S7.pdf (111401 bytes)
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    | 
      6S7G
     | 
      Sylvania
     | 
      p
     | 
      6S7G.pdf (30844 bytes) (fr)
   | 
    | 
      6S7G
     | 
      Tung-Sol
     | 
      p
     | 
      6S7G.pdf (120710 bytes)
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    | 
      6S7G
     | 
      Sylvania
     | 
      p
     | 
      6S7G.pdf (33753 bytes)
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    | 
      6S8GT
     | 
      RCA (HB3)
     | 
      dddt
     | 
      6S8GT.pdf (159068 bytes)
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    | 
      6S8GT
     | 
      Tung-Sol
     | 
      dddt
     | 
      6S8GT.pdf (129599 bytes)
   | 
    
      6S8S 6 8 
     | 
      Soviet
     | 
      t~
     | 
      6S8S.pdf (55483 bytes)
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      6S9D 6 9 
     | 
      Soviet
     | 
      t
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      6S9D.pdf (64632 bytes)
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    | 
      6SA7
     | 
      RCA (HB3)
     | 
      H
     | 
      6SA7.pdf (322709 bytes)
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    | 
      6SA7
     | 
      RFT
     | 
      H
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      6SA7.pdf (88784 bytes) (de)
   | 
    | 
      6SA7
     | 
      General Electric
     | 
      H
     | 
      6SA7.pdf (278619 bytes)
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    | 
      6SA7
     | 
      Sylvania
     | 
      H
     | 
      6SA7.pdf (83250 bytes) (fr)
   | 
    | 
      6SA7
     | 
      Tung-Sol
     | 
      H
     | 
      6SA7.pdf (268756 bytes)
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    | 
      6SA7
     | 
      RCA
     | 
      H
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      6SA7.pdf (125413 bytes)
   | 
    | 
      6SA7G
     | 
      RCA (HB3)
     | 
      H
     | 
      6SA7.pdf (322709 bytes)
   | 
    
      6SA7GT  
     | 
      RCA (HB3)
     | 
      H
     | 
      6SA7.pdf (322709 bytes)
   | 
    | 
      6SA7GT
     | 
      Tung-Sol
     | 
      H
     | 
      6SA7.pdf (268756 bytes)
   | 
    
      6SB7Y  
     | 
      RCA (HB3)
     | 
      H
     | 
      6SB7Y.pdf (305942 bytes)
   | 
    | 
      6SB7Y
     | 
      Tung-Sol
     | 
      H
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      6SB7Y.pdf (253124 bytes)
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    | 
      6SC7
     | 
      General Electric
     | 
      tt
     | 
      6SC7.pdf (375711 bytes)
   | 
    | 
      6SC7
     | 
      Sylvania
     | 
      tt
     | 
      6SA7.pdf (83250 bytes) (fr)
   | 
    | 
      6SC7
     | 
      Tung-Sol
     | 
      tt
     | 
      6SC7.pdf (75116 bytes)
   | 
    | 
      6SC7
     | 
      RCA
     | 
      tt
     | 
      6SC7.pdf (96544 bytes)
   | 
    | 
      6SC7GT
     | 
      Tung-Sol
     | 
      tt
     | 
      6SC7.pdf (75116 bytes)
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    | 
      6SC7GT
     | 
      Brimar
     | 
      tt
     | 
      6R7G.pdf (51092 bytes)
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    | 
      6SD7GT
     | 
      Tung-Sol
     | 
      p
     | 
      6SD7GT.pdf (58488 bytes)
   | 
    | 
      6SE7GT
     | 
      Hytron
     | 
      p
     | 
      6SE7GT.pdf (60174 bytes)
   | 
    | 
      6SF5
     | 
      RCA (HB3)
     | 
      t
     | 
      6SF5.pdf (110464 bytes)
   | 
    | 
      6SF5
     | 
      Sylvania
     | 
      t
     | 
      6SA7.pdf (83250 bytes) (fr)
   | 
    | 
      6SF5
     | 
      Tung-Sol
     | 
      t
     | 
      6SF5.pdf (93280 bytes)
   | 
    | 
      6SF5
     | 
      RCA
     | 
      t
     | 
      6SF5.pdf (64867 bytes)
   | 
    | 
      6SF5GT
     | 
      RCA (HB3)
     | 
      t
     | 
      6SF5.pdf (110464 bytes)
   | 
    
      6SF5GT  
     | 
      Tung-Sol
     | 
      t
     | 
      6SF5.pdf (93280 bytes)
   | 
    
      6SF7    
     | 
      RCA (HB3)
     | 
      dp
     | 
      6SF7.pdf (191219 bytes)
   | 
    | 
      6SF7
     | 
      Tung-Sol
     | 
      dp
     | 
      6SF7.pdf (137329 bytes)
   | 
    | 
      6SF7GT
     | 
      AWV
     | 
       
     | 
      6SF7GT.pdf (44109 bytes)
   | 
    | 
      6SG7
     | 
      General Electric
     | 
      p
     | 
      6SG7.pdf (235942 bytes)
   | 
    | 
      6SG7
     | 
      Tung-Sol
     | 
      p
     | 
      6SG7.pdf (205487 bytes)
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    | 
      6SG7GT
     | 
      Tung-Sol
     | 
      p
     | 
      6SG7.pdf (205487 bytes)
   | 
    | 
      6SH7
     | 
      RFT
     | 
      p
     | 
      6SH7.pdf (77094 bytes) (de)
   | 
    | 
      6SH7
     | 
      General Electric
     | 
      p
     | 
      6SH7.pdf (302998 bytes)
   | 
    | 
      6SH7GT
     | 
      Tung-Sol
     | 
      p
     | 
      6SH7GT.pdf (47909 bytes)
   | 
    | 
      6SH7L
     | 
      Tung-Sol
     | 
      p
     | 
      6SH7L.pdf (58923 bytes)
   | 
    | 
      6SJ7
     | 
      RCA (HB3)
     | 
      p
     | 
      6SJ7.pdf (417464 bytes)
   | 
    | 
      6SJ7
     | 
      RFT
     | 
      p
     | 
      6SJ7.pdf (85644 bytes) (de)
   | 
    | 
      6SJ7
     | 
      General Electric
     | 
      p
     | 
      6SJ7.pdf (444253 bytes)
   | 
    | 
      6SJ7
     | 
      Sylvania
     | 
      p
     | 
      6SA7.pdf (83250 bytes) (fr)
   | 
    | 
      6SJ7
     | 
      Tung-Sol
     | 
      p
     | 
      6SJ7.pdf (128081 bytes)
   | 
    | 
      6SJ7
     | 
      RCA
     | 
      p
     | 
      6SJ7-6SK7.pdf (394014 bytes)
   | 
    
      6SJ7GT  
     | 
      RCA (HB3)
     | 
      p
     | 
      6SJ7.pdf (417464 bytes)
   | 
    | 
      6SJ7GT
     | 
      Tung-Sol
     | 
      p
     | 
      6SJ7.pdf (128081 bytes)
   | 
    | 
      6SK7
     | 
      RCA (HB3)
     | 
      p
     | 
      6SK7.pdf (185044 bytes)
   | 
    | 
      6SK7
     | 
      RFT
     | 
      p
     | 
      6SK7.pdf (75398 bytes) (de)
   | 
    | 
      6SK7
     | 
      General Electric
     | 
      p
     | 
      6SK7.pdf (349513 bytes)
   | 
    | 
      6SK7
     | 
      Sylvania
     | 
      p
     | 
      6SA7.pdf (83250 bytes) (fr)
   | 
    | 
      6SK7
     | 
      Tung-Sol
     | 
      p
     | 
      6SK7.pdf (216406 bytes)
   | 
    | 
      6SK7
     | 
      RCA
     | 
      p
     | 
      6SJ7-6SK7.pdf (394014 bytes)
   | 
    | 
      6SK7G
     | 
      RCA (HB3)
     | 
      p
     | 
      6SK7.pdf (185044 bytes)
   | 
    | 
      6SK7GT
     | 
      RCA (HB3)
     | 
      p
     | 
      6SK7.pdf (185044 bytes)
   | 
    
      6SK7GT  
     | 
      Tung-Sol
     | 
      p
     | 
      6SK7.pdf (216406 bytes)
   | 
    | 
      6SL7
     | 
      RFT
     | 
      tt
     | 
      6SL7.pdf (71264 bytes) (de)
   | 
    
      6SL7GT  
     | 
      RCA (HB3)
     | 
      tt
     | 
      6SL7GT.pdf (144524 bytes)
   | 
    
      6SL7GT  
     | 
      General Electric
     | 
      tt
     | 
      6SL7GT.pdf (367256 bytes)
   | 
    
      6SL7GT  
     | 
      Tung-Sol
     | 
      tt
     | 
      6SL7GT.pdf (131131 bytes)
   | 
    | 
      6SL7GT
     | 
      Brimar
     | 
      tt
     | 
      6SL7GT.pdf (96942 bytes)
   | 
    
      6SL7GT  
     | 
      RCA (RC30)
     | 
      tt
     | 
      6S4A.pdf (108423 bytes)
   | 
    | 
      6SL7WGT
     | 
      Tung-Sol
     | 
      tt
     | 
      6SL7WGT.pdf (159238 bytes)
   | 
    
      6SL7WGT  
     | 
      Sylvania
     | 
      tt
     | 
      6SL7WGT.pdf (306821 bytes)
   | 
    | 
      6SN7
     | 
      RFT
     | 
      tt
     | 
      6SN7.pdf (66065 bytes) (de)
   | 
    | 
      6SN7GT
     | 
      Tung-Sol
     | 
      tt
     | 
      6SN7GT.pdf (133934 bytes)
   | 
    | 
      6SN7GT
     | 
      Sylvania
     | 
      tt
     | 
      6SN7GT.pdf (407316 bytes)
   | 
    | 
      6SN7GT
     | 
      Brimar
     | 
      tt
     | 
      6SN7GT.pdf (104549 bytes)
   | 
    | 
      6SN7GTA
     | 
      RCA (HB3)
     | 
      tt
     | 
      6SN7GTA.pdf (294351 bytes)
   | 
    
      6SN7GTA  
     | 
      General Electric
     | 
      tt
     | 
      6SN7GTB.pdf (479306 bytes)
   | 
    | 
      6SN7GTA
     | 
      Tung-Sol
     | 
      tt
     | 
      6SN7GTA.pdf (221413 bytes)
   | 
    
      6SN7GTA  
     | 
      Sylvania
     | 
      tt
     | 
      6SN7GTA.pdf (397641 bytes)
   | 
    
      6SN7GTB        
     | 
      RCA (HB3)
     | 
      tt
     | 
      6SN7GTB.pdf (16518 bytes)
   | 
    
      6SN7GTB          
     | 
      General Electric
     | 
      tt
     | 
      6SN7GTB.pdf (479306 bytes)
   | 
    | 
      6SN7GTB
     | 
      Tung-Sol
     | 
      tt
     | 
      6SN7GTB.pdf (262500 bytes)
   | 
    | 
      6SN7GTB
     | 
      Sylvania
     | 
      tt
     | 
      6SN7GTA.pdf (397641 bytes)
   | 
    
      6SN7GTB        
     | 
      RCA (RC30)
     | 
      tt
     | 
      6SN7GTB.pdf (333220 bytes)
   | 
    | 
      6SN7WGT
     | 
      Raytheon
     | 
      tt
     | 
      6SN7WGT.pdf (468712 bytes)
   | 
    
      6SN7WGTA  
     | 
      Tung-Sol
     | 
      tt
     | 
      6SN7WGTA.pdf (309503 bytes)
   | 
    
      6SN7WGTA  
     | 
      Tung-Sol
     | 
      tt
     | 
      6SN7WGTA.pdf (301961 bytes)
   | 
    | 
      6SQ7
     | 
      RCA (HB3)
     | 
      ddt
     | 
      6SQ7.pdf (202861 bytes)
   | 
    | 
      6SQ7
     | 
      RFT
     | 
      ddt
     | 
      6SQ7.pdf (78329 bytes) (de)
   | 
    | 
      6SQ7
     | 
      General Electric
     | 
      ddt
     | 
      6SQ7.pdf (321892 bytes)
   | 
    | 
      6SQ7
     | 
      Sylvania
     | 
      ddt
     | 
      6SA7.pdf (83250 bytes) (fr)
   | 
    | 
      6SQ7
     | 
      Tung-Sol
     | 
      ddt
     | 
      6SQ7.pdf (245274 bytes)
   | 
    | 
      6SQ7
     | 
      RCA
     | 
      ddt
     | 
      6SQ7.pdf (96813 bytes)
   | 
    | 
      6SQ7G
     | 
      RCA (HB3)
     | 
      ddt
     | 
      6SQ7.pdf (202861 bytes)
   | 
    | 
      6SQ7G
     | 
      ChampionRadioTube
     | 
      ddt
     | 
      6SQ7G.pdf (31803 bytes)
   | 
    
      6SQ7GT  
     | 
      RCA (HB3)
     | 
      ddt
     | 
      6SQ7.pdf (202861 bytes)
   | 
    | 
      6SQ7GT
     | 
      Tung-Sol
     | 
      ddt
     | 
      6SQ7.pdf (245274 bytes)
   | 
    
      6SR7  
     | 
      RCA (HB3)
     | 
      ddt
     | 
      6SR7.pdf (117291 bytes)
   | 
    | 
      6SR7
     | 
      Tung-Sol
     | 
      ddt
     | 
      6SR7.pdf (109091 bytes)
   | 
    | 
      6SR7GT
     | 
      Tung-Sol
     | 
      ddt
     | 
      6SR7.pdf (109091 bytes)
   | 
    | 
      6SS7
     | 
      RCA (HB3)
     | 
      p
     | 
      6SS7.pdf (105876 bytes)
   | 
    | 
      6SS7
     | 
      Tung-Sol
     | 
      p
     | 
      6SS7.pdf (105537 bytes)
   | 
    | 
      6SS7GT
     | 
      Tung-Sol
     | 
      p
     | 
      6SS7.pdf (105537 bytes)
   | 
    | 
      6ST7
     | 
      RCA
     | 
      ddt
     | 
      6ST7.pdf (30416 bytes)
   | 
    
      6SU7GTY  
     | 
      Tung-Sol
     | 
      tt
     | 
      6SU7GTY.pdf (80899 bytes)
   | 
    
      6SU7WGT (= 6188)  
     | 
      Tung-Sol
     | 
      tt
     | 
      6188.pdf (227902 bytes)
   | 
    
      6SU7WGT (= 6188)  
     | 
      Tung-Sol
     | 
      tt
     | 
      6188.pdf (328523 bytes)
   | 
    | 
      6SV7
     | 
      Tung-Sol
     | 
      dp
     | 
      6SV7.pdf (164359 bytes)
   | 
    | 
      6SZ7
     | 
      RCA (HB3)
     | 
      ddt
     | 
      6SZ7.pdf (123276 bytes)
   | 
    | 
      6SZ7
     | 
      Tung-Sol
     | 
      ddt
     | 
      6SZ7.pdf (120986 bytes)
   | 
    
      6T10  
     | 
      General Electric
     | 
      pP
     | 
      6T10.pdf (897162 bytes)
   | 
    | 
      6T10
     | 
      RCA (RC30)
     | 
      pP
     | 
      6SN7GTB.pdf (333220 bytes)
   | 
    
      6T4  
     | 
      Sylvania
     | 
      t
     | 
      6T4.pdf (117816 bytes)
   | 
    
      6T4  
     | 
      Sylvania
     | 
      t
     | 
      6T4.pdf (356146 bytes)
   | 
    | 
      6T5
     | 
      Sylvania
     | 
      ti
     | 
      6T5.pdf (41475 bytes)
   | 
    | 
      6T6GM
     | 
      Rogers
     | 
      p
     | 
      6T6GM.pdf (48811 bytes)
   | 
    | 
      6T7G
     | 
      RCA (HB3)
     | 
      ddt
     | 
      6T7G.pdf (117215 bytes)
   | 
    | 
      6T7G
     | 
      Sylvania
     | 
      ddt
     | 
      6T7G.pdf (41394 bytes) (fr)
   | 
    | 
      6T7G
     | 
      Tung-Sol
     | 
      ddt
     | 
      6T7G.pdf (165562 bytes)
   | 
    | 
      6T8
     | 
      General Electric
     | 
      dddt
     | 
      6T8.pdf (398222 bytes)
   | 
    | 
      6T8
     | 
      Tung-Sol
     | 
      dddt
     | 
      6T8.pdf (168627 bytes)
   | 
    | 
      6T8
     | 
      Brimar
     | 
      dddt
     | 
      6T8.pdf (40454 bytes)
   | 
    | 
      6T8A
     | 
      RCA (HB3)
     | 
      dddt
     | 
      6T8A.pdf (279806 bytes)
   | 
    
      6T8A  
     | 
      General Electric
     | 
      dddt
     | 
      6T8A.pdf (49566 bytes)
   | 
    | 
      6T8A
     | 
      Tung-Sol
     | 
      dddt
     | 
      6T8A.pdf (237788 bytes)
   | 
    | 
      6T8A
     | 
      RCA (RC30)
     | 
      dddt
     | 
      6SN7GTB.pdf (333220 bytes)
   | 
    | 
      6T9
     | 
      RCA
     | 
      tP
     | 
      6T9.pdf (329815 bytes)
   | 
    | 
      6T9
     | 
      GE
     | 
      tP
     | 
      6T9.pdf (84556 bytes)
   | 
    | 
      6TE8GT
     | 
      FIVRE
     | 
      th
     | 
      6TE8GT.pdf (238324 bytes) (it)
   | 
    | 
      6TO3A
     | 
      Cintel
     | 
      CRR
     | 
      6TO3A.pdf (99588 bytes)
   | 
    | 
      6U10
     | 
      RCA
     | 
      ttt
     | 
      6U10.pdf (333890 bytes)
   | 
    | 
      6U10
     | 
      General Electric
     | 
      ttt
     | 
      6U10.pdf (618595 bytes)
   | 
    | 
      6U10
     | 
      RCA (RC30)
     | 
      ttt
     | 
      6SN7GTB.pdf (333220 bytes)
   | 
    | 
      6U3
     | 
      Philips
     | 
      R
     | 
      6U3.pdf (91190 bytes)
   | 
    | 
      6U4GT
     | 
      Tung-Sol
     | 
      R
     | 
      6U4GT.pdf (81331 bytes)
   | 
    | 
      6U4GT
     | 
      Brimar
     | 
      R
     | 
      6U4GT.pdf (39095 bytes)
   | 
    | 
      6U5
     | 
      RCA (HB3)
     | 
      ti
     | 
      6U5.pdf (101234 bytes)
   | 
    
      6U5  
     | 
      Sylvania
     | 
      ti
     | 
      6U5.pdf (55750 bytes) (fr)
   | 
    | 
      6U5
     | 
      Tung-Sol
     | 
      ti
     | 
      6U5.pdf (106800 bytes)
   | 
    | 
      6U5
     | 
      Brimar
     | 
      ti
     | 
      6U5.pdf (59394 bytes)
   | 
    | 
      6U5
     | 
      Raytheon
     | 
      ti
     | 
      6U5-6G5.pdf (87117 bytes)
   | 
    | 
      6U5G
     | 
      Brimar
     | 
      ti
     | 
      6U5.pdf (59394 bytes)
   | 
    | 
      6U6GT
     | 
      Tung-Sol
     | 
      P
     | 
      6U6GT.pdf (115815 bytes)
   | 
    | 
      6U7G
     | 
      RCA (HB3)
     | 
      p
     | 
      6U7G.pdf (225600 bytes)
   | 
    | 
      6U7G
     | 
      Sylvania
     | 
      p
     | 
      6U7G.pdf (32910 bytes) (fr)
   | 
    | 
      6U7G
     | 
      Tung-Sol
     | 
      p
     | 
      6U7G.pdf (238997 bytes)
   | 
    | 
      6U7G
     | 
      Brimar
     | 
      p
     | 
      6U5.pdf (59394 bytes)
   | 
    | 
      6U7G
     | 
      Raytheon
     | 
      p
     | 
      6U7G.pdf (37506 bytes)
   | 
    | 
      6U8
     | 
      Mazda-Belvu
     | 
      tp
     | 
      6U8.pdf (107947 bytes) (fr)
   | 
    | 
      6U8 (= ECF82)
     | 
      RFT
     | 
      tp
     | 
      ECF82.pdf (140998 bytes) (de)
   | 
    | 
      6U8
     | 
      Tung-Sol
     | 
      tp
     | 
      6U8.pdf (81375 bytes)
   | 
    | 
      6U8
     | 
      Mullard
     | 
      tp
     | 
      6U8.pdf (124995 bytes)
   | 
    | 
      6U8A
     | 
      RCA (HB3)
     | 
      tp
     | 
      6U8A.pdf (310536 bytes)
   | 
    
      6U8A  
     | 
      General Electric
     | 
      tp
     | 
      6U8A.pdf (631341 bytes)
   | 
    | 
      6U8A
     | 
      Tung-Sol
     | 
      tp
     | 
      6U8A.pdf (300594 bytes)
   | 
    | 
      6U8A
     | 
      RCA (RC30)
     | 
      tp
     | 
      6SN7GTB.pdf (333220 bytes)
   | 
    
      6V2P 6 2 
     | 
      Soviet
     | 
      SET
     | 
      6V2P.pdf (149112 bytes)
   | 
    | 
      6V3
     | 
      Sylvania
     | 
      R
     | 
      6V3.pdf (85429 bytes)
   | 
    | 
      6V3A
     | 
      RCA (HB3)
     | 
      R
     | 
      6V3A.pdf (69906 bytes)
   | 
    | 
      6V3A
     | 
      Tung-Sol
     | 
      R
     | 
      6V3A.pdf (50284 bytes)
   | 
    | 
      6V3A
     | 
      Sylvania
     | 
      R
     | 
      6V3A.pdf (157560 bytes)
   | 
    | 
      6V4 (= EZ80)
     | 
      Mazda-Belvu
     | 
      rr
     | 
      EZ80.pdf (363756 bytes) (fr)
   | 
    | 
      6V4 (= EZ80)
     | 
      Brimar
     | 
      rr
     | 
      EZ80.pdf (55357 bytes)
   | 
    | 
      6V5GT
     | 
      NU
     | 
      P
     | 
      6V5GT.pdf (45820 bytes)
   | 
    | 
      6V6
     | 
      RCA (HB3)
     | 
      P
     | 
      6V6.pdf (34131 bytes)
   | 
    | 
      6V6
     | 
      RFT
     | 
      P
     | 
      6V6.pdf (101315 bytes) (de)
   | 
    | 
      6V6
     | 
      Sylvania
     | 
      P
     | 
      6V6.pdf (127614 bytes) (fr)
   | 
    | 
      6V6
     | 
      Tung-Sol
     | 
      P
     | 
      6V6.pdf (177785 bytes)
   | 
    | 
      6V6
     | 
      RCA (RC30)
     | 
      P
     | 
      6V6.pdf (565224 bytes)
   | 
    | 
      6V6
     | 
      RCA
     | 
      P
     | 
      6V6.pdf (41797 bytes)
   | 
    | 
      6V6G
     | 
      Sylvania
     | 
      P
     | 
      6V6.pdf (127614 bytes) (fr)
   | 
    | 
      6V6G
     | 
      Tung-Sol
     | 
      P
     | 
      6V6.pdf (177785 bytes)
   | 
    | 
      6V6G
     | 
      Brimar
     | 
      P
     | 
      6V6G.pdf (57555 bytes)
   | 
    | 
      6V6GT
     | 
      Mazda-Belvu
     | 
      P
     | 
      6V6GT.pdf (171814 bytes) (fr)
   | 
    | 
      6V6GT
     | 
      RCA (HB3)
     | 
      P
     | 
      6V6.pdf (34131 bytes)
   | 
    | 
      6V6GT
     | 
      AWV
     | 
      P
     | 
      6V6GT.pdf (585729 bytes)
   | 
    | 
      6V6GT
     | 
      General Electric
     | 
      P
     | 
      6V6GT.pdf (643545 bytes)
   | 
    | 
      6V6GT
     | 
      Tung-Sol
     | 
      P
     | 
      6V6.pdf (177785 bytes)
   | 
    | 
      6V6GT
     | 
      Brimar
     | 
      P
     | 
      6V6G.pdf (57555 bytes)
   | 
    | 
      6V6GTA
     | 
      RCA (HB3)
     | 
      P
     | 
      6V6GTA.pdf (225328 bytes)
   | 
    | 
      6V6GTA
     | 
      Tung-Sol
     | 
      P
     | 
      6V6GTA.pdf (218227 bytes)
   | 
    | 
      6V6GTA
     | 
      General Electric
     | 
      P
     | 
      6V6GTA.pdf (469981 bytes)
   | 
    | 
      6V6GTA
     | 
      RCA (RC30)
     | 
      P
     | 
      6V6.pdf (565224 bytes)
   | 
    
      6V6S    
     | 
      JJ
     | 
      P
     | 
      6V6S.pdf (161482 bytes)
   | 
    | 
      6V7G
     | 
      RCA (HB3)
     | 
      ddt
     | 
      6V7G.pdf (29422 bytes)
   | 
    | 
      6V7G
     | 
      Sylvania
     | 
      ddt
     | 
      6V7G.pdf (22343 bytes) (fr)
   | 
    | 
      6V7G
     | 
      Tung-Sol
     | 
      ddt
     | 
      6V7G.pdf (129702 bytes)
   | 
    | 
      6V7G
     | 
      Raytheon
     | 
      ddt
     | 
      6V7G.pdf (33764 bytes)
   | 
    | 
      6V8
     | 
      Tung-Sol
     | 
      dddt
     | 
      6V8.pdf (60821 bytes)
   | 
    
      6VS1 6  1
     | 
      Soviet
     | 
      tbd
     | 
      6VS1.pdf (456290 bytes)
   | 
    | 
      6W2
     | 
      ElectronicTubesLtd
     | 
      R
     | 
      6W2.pdf (62931 bytes)
   | 
    | 
      6W4GT
     | 
      RCA (HB3)
     | 
      R
     | 
      6W4GT.pdf (63470 bytes)
   | 
    | 
      6W4GT
     | 
      General Electric
     | 
      R
     | 
      6W4GT.pdf (168492 bytes)
   | 
    | 
      6W4GT
     | 
      Tung-Sol
     | 
      R
     | 
      6W4GT.pdf (106441 bytes)
   | 
    | 
      6W4GTA
     | 
      General Electric
     | 
      R
     | 
      6W4GTA.pdf (182407 bytes)
   | 
    | 
      6W5G
     | 
      Ken-Rad
     | 
      rr
     | 
      6W5G.pdf (22201 bytes)
   | 
    | 
      6W6GT
     | 
      RCA (HB3)
     | 
      P
     | 
      6W6GT.pdf (219613 bytes)
   | 
    | 
      6W6GT
     | 
      General Electric
     | 
      P
     | 
      6W6GT.pdf (599369 bytes)
   | 
    | 
      6W6GT
     | 
      Tung-Sol
     | 
      P
     | 
      6W6GT.pdf (286302 bytes)
   | 
    | 
      6W6GT
     | 
      RCA (RC30)
     | 
      P
     | 
      6V6.pdf (565224 bytes)
   | 
    | 
      6W6GT
     | 
      Hytron
     | 
      P
     | 
      6W6GT.pdf (149596 bytes)
   | 
    | 
      6W7G
     | 
      RCA (HB3)
     | 
      p
     | 
      6W7G.pdf (44118 bytes)
   | 
    | 
      6W7G
     | 
      Sylvania
     | 
      p
     | 
      6W7G.pdf (48105 bytes) (fr)
   | 
    | 
      6W7G
     | 
      Tung-Sol
     | 
      p
     | 
      6W7G.pdf (118157 bytes)
   | 
    | 
      6W7G
     | 
      Sylvania
     | 
      p
     | 
      6W7G.pdf (37835 bytes)
   | 
    | 
      6X2 (= EY51)
     | 
      RFT
     | 
      R
     | 
      EY51.pdf (65299 bytes) (de)
   | 
    | 
      6X2
     | 
      Philips
     | 
      R
     | 
      6X2.pdf (135633 bytes)
   | 
    | 
      6X4 (= 6BX4)
     | 
      Mazda-Belvu
     | 
      rr
     | 
      6BX4.pdf (68439 bytes) (fr)
   | 
    | 
      6X4
     | 
      RCA (HB3)
     | 
      rr
     | 
      6X4.pdf (486681 bytes)
   | 
    | 
      6X4
     | 
      General Electric
     | 
      rr
     | 
      6X4.pdf (551501 bytes)
   | 
    | 
      6X4
     | 
      Tung-Sol
     | 
      rr
     | 
      6X4.pdf (145671 bytes)
   | 
    | 
      6X4
     | 
      Sylvania
     | 
      rr
     | 
      6X4.pdf (376421 bytes)
   | 
    | 
      6X4
     | 
      Brimar
     | 
      rr
     | 
      6X4.pdf (47067 bytes)
   | 
    | 
      6X4
     | 
      RCA (RC30)
     | 
      rr
     | 
      6V6.pdf (565224 bytes)
   | 
    | 
      6X4W
     | 
      Tung-Sol
     | 
      rr
     | 
      6X4W.pdf (212768 bytes)
   | 
    | 
      6X4W
     | 
      Tung-Sol
     | 
      rr
     | 
      6X4W.pdf (209669 bytes)
   | 
    | 
      6X4W
     | 
      Raytheon
     | 
      rr
     | 
      6X4W.pdf (394389 bytes)
   | 
    | 
      6X4WA
     | 
      Tung-Sol
     | 
      rr
     | 
      6X4WA.pdf (498668 bytes)
   | 
    | 
      6X4WS
     | 
      Mazda-Belvu
     | 
      rr
     | 
      6X4WS.pdf (130478 bytes) (fr)
   | 
    | 
      6X5
     | 
      RCA
     | 
      rr
     | 
      6X5.pdf (39050 bytes)
   | 
    | 
      6X5
     | 
      RCA (HB3)
     | 
      rr
     | 
      6X5.pdf (121702 bytes)
   | 
    | 
      6X5
     | 
      RFT
     | 
      rr
     | 
      6X5.pdf (65514 bytes) (de)
   | 
    | 
      6X5
     | 
      Sylvania
     | 
      rr
     | 
      6X5.pdf (131688 bytes) (fr)
   | 
    | 
      6X5
     | 
      Tung-Sol
     | 
      rr
     | 
      6X5.pdf (103302 bytes)
   | 
    | 
      6X5G
     | 
      RCA (HB3)
     | 
      rr
     | 
      6X5.pdf (121702 bytes)
   | 
    | 
      6X5G
     | 
      Sylvania
     | 
      rr
     | 
      6X5.pdf (131688 bytes) (fr)
   | 
    | 
      6X5G
     | 
      Tung-Sol
     | 
      rr
     | 
      6X5.pdf (103302 bytes)
   | 
    | 
      6X5G
     | 
      Brimar
     | 
      rr
     | 
      6X5G.pdf (54304 bytes)
   | 
    
      6X5GT      
     | 
      RCA (HB3)
     | 
      rr
     | 
      6X5.pdf (121702 bytes)
   | 
    | 
      6X5GT
     | 
      General Electric
     | 
      rr
     | 
      6X5GT.pdf (228145 bytes)
   | 
    
      6X5GT        
     | 
      Sylvania
     | 
      rr
     | 
      6J7GT.pdf (111793 bytes) (fr)
   | 
    
      6X5GT  
     | 
      Tung-Sol
     | 
      rr
     | 
      6X5GT.pdf (199311 bytes)
   | 
    | 
      6X5GT
     | 
      Brimar
     | 
      rr
     | 
      6X5G.pdf (54304 bytes)
   | 
    
      6X5GT      
     | 
      RCA (RC30)
     | 
      rr
     | 
      6V6.pdf (565224 bytes)
   | 
    | 
      6X5GT
     | 
      Hytron
     | 
      rr
     | 
      6X5GT.pdf (392331 bytes)
   | 
    | 
      6X5WGT
     | 
      Tung-Sol
     | 
      rr
     | 
      6X5WGT.pdf (75712 bytes)
   | 
    
      6X5WGT    
     | 
      Raytheon
     | 
      rr
     | 
      6X5WGT.pdf (177604 bytes)
   | 
    | 
      6X6G
     | 
      Rogers
     | 
      ti
     | 
      6X6G.pdf (65927 bytes)
   | 
    | 
      6X8
     | 
      RCA (HB3)
     | 
      tp
     | 
      6X8.pdf (271284 bytes)
   | 
    | 
      6X8
     | 
      General Electric
     | 
      tp
     | 
      6X8.pdf (755679 bytes)
   | 
    | 
      6X8
     | 
      Tung-Sol
     | 
      tp
     | 
      6X8.pdf (307380 bytes)
   | 
    | 
      6X8A
     | 
      Tung-Sol
     | 
      tp
     | 
      6X8.pdf (307380 bytes)
   | 
    | 
      6X8A
     | 
      RCA (RC30)
     | 
      tp
     | 
      6V6.pdf (565224 bytes)
   | 
    | 
      6X9
     | 
      RCA (RC30)
     | 
      tp
     | 
      6V6.pdf (565224 bytes)
   | 
    | 
      6Y10
     | 
      Tung-Sol
     | 
      pP
     | 
      6Y10.pdf (108476 bytes)
   | 
    | 
      6Y3G
     | 
      Philco
     | 
      R°
     | 
      6Y3G.pdf (42601 bytes)
   | 
    | 
      6Y5
     | 
      RCA (HB3)
     | 
      rr
     | 
      6Y5.pdf (25829 bytes)
   | 
    | 
      6Y5
     | 
      Tung-Sol
     | 
      rr
     | 
      6Y5.pdf (31404 bytes)
   | 
    | 
      6Y50
     | 
      Tesla
     | 
      R
     | 
      6Y50.pdf (298341 bytes) (cs)
   | 
    | 
      6Y6G
     | 
      Sylvania
     | 
      P
     | 
      6Y6G.pdf (50183 bytes) (fr)
   | 
    | 
      6Y6G
     | 
      Tung-Sol
     | 
      P
     | 
      6Y6G.pdf (117238 bytes)
   | 
    | 
      6Y6G
     | 
      RCA (RC30)
     | 
      P
     | 
      6V6.pdf (565224 bytes)
   | 
    | 
      6Y6G
     | 
      Raytheon
     | 
      P
     | 
      6Y6G.pdf (68529 bytes)
   | 
    | 
      6Y6GA
     | 
      RCA (HB3)
     | 
      P
     | 
      6Y6GA.pdf (79743 bytes)
   | 
    | 
      6Y6GA
     | 
      Tung-Sol
     | 
      P
     | 
      6Y6GA.pdf (118342 bytes)
   | 
    | 
      6Y6GA
     | 
      Sylvania
     | 
      P
     | 
      6Y6GA.pdf (320573 bytes)
   | 
    | 
      6Y6GA
     | 
      RCA (RC30)
     | 
      P
     | 
      6V6.pdf (565224 bytes)
   | 
    
      6Y6GT  
     | 
      General Electric
     | 
      P
     | 
      6Y6GT.pdf (396995 bytes)
   | 
    | 
      6Y7G
     | 
      RCA (HB3)
     | 
      TT
     | 
      6Y7G.pdf (27850 bytes)
   | 
    
      6Y7G  
     | 
      Sylvania
     | 
      TT
     | 
      6Y7G.pdf (26158 bytes) (fr)
   | 
    | 
      6Y7G
     | 
      Tung-Sol
     | 
      TT
     | 
      6Y7G.pdf (51131 bytes)
   | 
    | 
      6Y7G
     | 
      Sylvania
     | 
      TT
     | 
      6Y7G.pdf (37179 bytes)
   | 
    | 
      6Y9
     | 
      RCA (RC30)
     | 
      pP
     | 
      6V6.pdf (565224 bytes)
   | 
    | 
      6Z10
     | 
      RCA (HB3)
     | 
      pP
     | 
      6Z10.pdf (108228 bytes)
   | 
    | 
      6Z10
     | 
      General Electric
     | 
      pP
     | 
      6Z10.pdf (511301 bytes)
   | 
    | 
      6Z10
     | 
      RCA (RC30)
     | 
      pP
     | 
      6Z10.pdf (115623 bytes)
   | 
    
      6Z10P 6 10 
     | 
      Soviet
     | 
      p
     | 
      6Z10P.pdf (275948 bytes)
   | 
    
      6Z11PE 6 11  
     | 
      Soviet
     | 
      p
     | 
      6Z11PE.pdf (211671 bytes)
   | 
    
      6Z1PEV 6 1   
     | 
      Soviet
     | 
      p
     | 
      6Z1PEV.pdf (270793 bytes)
   | 
    
      6Z1P 6 1 
     | 
      Soviet
     | 
      p
     | 
      6Z1P.pdf (248787 bytes)
   | 
    
      6Z2PEV 6 2   
     | 
      Soviet
     | 
      p
     | 
      6Z2PEV.pdf (216915 bytes)
   | 
    
      6Z2P 6 2   
     | 
      Soviet
     | 
      p
     | 
      6Z2P.pdf (201648 bytes)
   | 
    | 
      6Z31
     | 
      Tesla
     | 
      rr
     | 
      6Z31.pdf (142889 bytes) (cs)
   | 
    
      6Z32P 6 32 
     | 
      Soviet
     | 
      p
     | 
      6Z32P.pdf (247060 bytes)
   | 
    
      6Z38P 6 38 
     | 
      Soviet
     | 
      p
     | 
      6Z38P.pdf (319328 bytes)
   | 
    
      6Z3P 6 3 
     | 
      Soviet
     | 
      p
     | 
      6Z3P.pdf (173542 bytes)
   | 
    | 
      6Z4 (= 84)
     | 
      Sylvania
     | 
      rr
     | 
      83V.pdf (95293 bytes)
   | 
    
      6Z4  
     | 
      Sylvania
     | 
      rr
     | 
      84.pdf (79204 bytes) (fr)
   | 
    
      6Z43PE 6 43  
     | 
      Soviet
     | 
      p
     | 
      6Z43PE.pdf (201030 bytes)
   | 
    
      6Z49PDR 6 49   
     | 
      Soviet
     | 
      p
     | 
      6Z49PDR.pdf (246869 bytes)
   | 
    
      6Z49PD 6 49  
     | 
      Soviet
     | 
      p
     | 
      6Z49PD.pdf (164537 bytes)
   | 
    
      6Z4P 6 4 
     | 
      Soviet
     | 
      p
     | 
      6Z4P.pdf (234295 bytes)
   | 
    | 
      6Z4
     | 
      Shuguang
     | 
      rr
     | 
      6Z4.pdf (99258 bytes) (zh)
   | 
    | 
      6Z5
     | 
      RCA (HB3)
     | 
      rr
     | 
      6Z5.pdf (28352 bytes)
   | 
    | 
      6Z5
     | 
      Tung-Sol
     | 
      rr
     | 
      6Z5.pdf (35258 bytes)
   | 
    
      6Z51P 6 51 
     | 
      Soviet
     | 
      p
     | 
      6Z51P.pdf (256326 bytes)
   | 
    
      6Z52P 6 52 
     | 
      Soviet
     | 
      p
     | 
      6Z52P.pdf (178703 bytes)
   | 
    
      6Z53P 6 53 
     | 
      Soviet
     | 
      p
     | 
      6Z53P.pdf (164205 bytes)
   | 
    
      6Z5P 6 5 
     | 
      Soviet
     | 
      p
     | 
      6Z5P.pdf (276152 bytes)
   | 
    | 
      6Z5P
     | 
      Shuguang
     | 
      rr
     | 
      6Z5P.pdf (113763 bytes) (zh)
   | 
    
      6Z7G    
     | 
      RCA (HB3)
     | 
      TT
     | 
      6Z7G.pdf (109706 bytes)
   | 
    | 
      6Z7G
     | 
      Sylvania
     | 
      TT
     | 
      6Z7G.pdf (46173 bytes) (fr)
   | 
    | 
      6Z7G
     | 
      Tung-Sol
     | 
      TT
     | 
      6Z7G.pdf (50135 bytes)
   | 
    | 
      6Z7G
     | 
      Raytheon
     | 
      TT
     | 
      6Z7G.pdf (26530 bytes)
   | 
    
      6Z9PE 6 9  
     | 
      Soviet
     | 
      p
     | 
      6Z9PE.pdf (190449 bytes)
   | 
    
      6Z9P 6 9   
     | 
      Soviet
     | 
      p
     | 
      6Z9P.pdf (233095 bytes)
   | 
    | 
      6ZY5G
     | 
      Sylvania
     | 
      rr
     | 
      6ZY5G.pdf (54903 bytes) (fr)
   | 
    | 
      6ZY5G
     | 
      Tung-Sol
     | 
      rr
     | 
      6ZY5G.pdf (97304 bytes)
   | 
    | 
      6ZY5G
     | 
      Sylvania
     | 
      rr
     | 
      6ZY5G.pdf (36628 bytes)
   |