| 
        Electron tube Type
       | 
        Brand
       | 
        System
       | 
        Data sheet
   | 
    | 
      6BE7
     | 
      Philips
     | 
      e
     | 
      6BE7.pdf (372946 bytes)
   | 
    | 
      6BE8
     | 
      Sylvania
     | 
      tp
     | 
      6BE8.pdf (157308 bytes)
   | 
    | 
      6BE8
     | 
      Sylvania
     | 
      tp
     | 
      6BE8.pdf (740343 bytes)
   | 
    | 
      6BE8A
     | 
      Sylvania
     | 
      tp
     | 
      6BE8A.pdf (36228 bytes)
   | 
    | 
      6BF11
     | 
      RCA (HB3)
     | 
      pP
     | 
      6BF11.pdf (406799 bytes)
   | 
    
      6BF11  
     | 
      General Electric
     | 
      pP
     | 
      6BF11.pdf (871721 bytes)
   | 
    | 
      6BF11
     | 
      Tung-Sol
     | 
      pP
     | 
      6BF11.pdf (103206 bytes)
   | 
    | 
      6BF11
     | 
      RCA (RC30)
     | 
      pP
     | 
      6BC4.pdf (510539 bytes)
   | 
    
      6BF5  
     | 
      General Electric
     | 
      P
     | 
      6BF5.pdf (330105 bytes)
   | 
    | 
      6BF5
     | 
      Tung-Sol
     | 
      P
     | 
      6BF5.pdf (79920 bytes)
   | 
    | 
      6BF6
     | 
      Tung-Sol
     | 
      ddt
     | 
      6BF6.pdf (159177 bytes)
   | 
    | 
      6BF6
     | 
      Sylvania
     | 
      ddt
     | 
      6BF6.pdf (170077 bytes)
   | 
    | 
      6BF6
     | 
      General Electric
     | 
      ddt
     | 
      6BF6.pdf (430820 bytes)
   | 
    | 
      6BF7
     | 
      Tung-Sol
     | 
      tt
     | 
      6BF7.pdf (113614 bytes)
   | 
    | 
      6BF7A
     | 
      Sylvania
     | 
      tt
     | 
      6BF7A.pdf (46843 bytes)
   | 
    | 
      6BF8
     | 
      GE
     | 
       
     | 
      6BF8.pdf (75529 bytes)
   | 
    | 
      6BG6G
     | 
      Tung-Sol
     | 
      P
     | 
      6BG6G.pdf (188945 bytes)
   | 
    | 
      6BG6G
     | 
      Sylvania
     | 
      P
     | 
      6BG6G.pdf (345299 bytes)
   | 
    | 
      6BG6G
     | 
      Brimar
     | 
      P
     | 
      6BG6G.pdf (94604 bytes)
   | 
    
      6BG6GA    
     | 
      General Electric
     | 
      P
     | 
      6BG6GA.pdf (389203 bytes)
   | 
    | 
      6BG6GA
     | 
      Tung-Sol
     | 
      P
     | 
      6BG6GA.pdf (74751 bytes)
   | 
    | 
      6BG7
     | 
      Sylvania
     | 
      tt
     | 
      6BG7.pdf (36226 bytes)
   | 
    
      6BH11  
     | 
      General Electric
     | 
      ttp
     | 
      6BH11.pdf (687652 bytes)
   | 
    | 
      6BH11
     | 
      RCA (RC30)
     | 
      ttp
     | 
      6BH11.pdf (267732 bytes)
   | 
    | 
      6BH3
     | 
      RCA
     | 
      R
     | 
      6BH3.pdf (115689 bytes)
   | 
    | 
      6BH3A
     | 
      RCA (HB3)
     | 
      R
     | 
      6BH3A.pdf (60831 bytes)
   | 
    | 
      6BH5
     | 
      Philips
     | 
      p
     | 
      6BH5.pdf (289036 bytes)
   | 
    
      6BH6  
     | 
      RCA (HB3)
     | 
      p
     | 
      6BH6.pdf (520290 bytes)
   | 
    
      6BH6    
     | 
      General Electric
     | 
      p
     | 
      6BH6.pdf (565086 bytes)
   | 
    | 
      6BH6
     | 
      Tung-Sol
     | 
      p
     | 
      6BH6.pdf (166434 bytes)
   | 
    | 
      6BH6
     | 
      Brimar
     | 
      p
     | 
      6BH6.pdf (90295 bytes)
   | 
    
      6BH6  
     | 
      RCA (RC30)
     | 
      p
     | 
      6201.pdf (902849 bytes)
   | 
    
      6BH6  
     | 
      RCA (RC30)
     | 
      p
     | 
      6BC4.pdf (510539 bytes)
   | 
    
      6BH8  
     | 
      General Electric
     | 
      tp
     | 
      6BH8.pdf (688902 bytes)
   | 
    | 
      6BH8
     | 
      Tung-Sol
     | 
      tp
     | 
      6BH8.pdf (438741 bytes)
   | 
    | 
      6BJ3
     | 
      RCA (HB3)
     | 
      R
     | 
      6BJ3.pdf (56416 bytes)
   | 
    | 
      6BJ3
     | 
      General Electric
     | 
      R
     | 
      6BJ3.pdf (177999 bytes)
   | 
    | 
      6BJ5
     | 
      AWV
     | 
      P
     | 
      6BJ5.pdf (34464 bytes)
   | 
    
      6BJ6    
     | 
      RCA (HB3)
     | 
      p
     | 
      6BJ6.pdf (239014 bytes)
   | 
    
      6BJ6  
     | 
      General Electric
     | 
      p
     | 
      6BJ6.pdf (418311 bytes)
   | 
    | 
      6BJ6
     | 
      Tung-Sol
     | 
      p
     | 
      6BJ6.pdf (229112 bytes)
   | 
    | 
      6BJ6
     | 
      Brimar
     | 
      p
     | 
      6BJ6.pdf (87010 bytes)
   | 
    
      6BJ6    
     | 
      RCA (RC30)
     | 
      p
     | 
      6BH11.pdf (267732 bytes)
   | 
    | 
      6BJ6A
     | 
      Tung-Sol
     | 
      p
     | 
      6BJ6.pdf (229112 bytes)
   | 
    | 
      6BJ6A
     | 
      Sylvania
     | 
      p
     | 
      6BJ6A.pdf (32892 bytes)
   | 
    | 
      6BJ7
     | 
      RCA (HB3)
     | 
      ddd
     | 
      6BJ7.pdf (63395 bytes)
   | 
    
      6BJ7  
     | 
      General Electric
     | 
      ddd
     | 
      6BJ7.pdf (131059 bytes)
   | 
    | 
      6BJ7
     | 
      Tung-Sol
     | 
      ddd
     | 
      6BJ7.pdf (72390 bytes)
   | 
    | 
      6BJ8
     | 
      RCA (HB3)
     | 
      ddt
     | 
      6BJ8.pdf (261670 bytes)
   | 
    | 
      6BJ8
     | 
      Sylvania
     | 
      ddt
     | 
      6BJ8.pdf (168365 bytes)
   | 
    | 
      6BJ8
     | 
      Tung-Sol
     | 
      ddt
     | 
      6BJ8.pdf (99078 bytes)
   | 
    | 
      6BJ8
     | 
      Sylvania
     | 
      ddt
     | 
      6BJ8.pdf (460996 bytes)
   | 
    | 
      6BJ8
     | 
      RCA (RC30)
     | 
      ddt
     | 
      6BH11.pdf (267732 bytes)
   | 
    | 
      6BK11
     | 
      RMA/EIA
     | 
      ttt
     | 
      6BK11.pdf (157019 bytes)
   | 
    | 
      6BK4
     | 
      Tung-Sol
     | 
      T
     | 
      6BK4.pdf (111227 bytes)
   | 
    | 
      6BK4
     | 
      Sylvania
     | 
      T
     | 
      6BK4.pdf (203171 bytes)
   | 
    | 
      6BK4A
     | 
      RCA (HB3)
     | 
      T
     | 
      6BK4A.pdf (209427 bytes)
   | 
    | 
      6BK4A
     | 
      Tung-Sol
     | 
      T
     | 
      6BK4A.pdf (114368 bytes)
   | 
    | 
      6BK4B
     | 
      Mazda-Belvu
     | 
      T
     | 
      6BK4B.pdf (257606 bytes) (fr)
   | 
    | 
      6BK4B
     | 
      RCA (HB3)
     | 
      T
     | 
      6BK4B.pdf (159534 bytes)
   | 
    | 
      6BK4B
     | 
      Tung-Sol
     | 
      T
     | 
      6BK4B.pdf (125807 bytes)
   | 
    
      6BK4C  
     | 
      Sylvania
     | 
      T
     | 
      6BK4C.pdf (124408 bytes)
   | 
    
      6BK4C  
     | 
      RCA (RC30)
     | 
      T
     | 
      6BH11.pdf (267732 bytes)
   | 
    | 
      6BK5
     | 
      General Electric
     | 
      P
     | 
      6BK5.pdf (314625 bytes)
   | 
    | 
      6BK5
     | 
      Tung-Sol
     | 
      P
     | 
      6BK5.pdf (205978 bytes)
   | 
    | 
      6BK6
     | 
      Tung-Sol
     | 
      ddt
     | 
      6BK6.pdf (182497 bytes)
   | 
    | 
      6BK6
     | 
      Sylvania
     | 
      ddt
     | 
      6BK6.pdf (34402 bytes)
   | 
    | 
      6BK7
     | 
      Sylvania
     | 
      tt
     | 
      6BK7.pdf (333054 bytes)
   | 
    | 
      6BK7A
     | 
      RCA (HB3)
     | 
      tt
     | 
      6BK7A.pdf (70092 bytes)
   | 
    | 
      6BK7A
     | 
      Tung-Sol
     | 
      tt
     | 
      6BK7A.pdf (169917 bytes)
   | 
    | 
      6BK7B
     | 
      RCA (HB3)
     | 
      tt
     | 
      6BK7B.pdf (191594 bytes)
   | 
    | 
      6BK7B
     | 
      General Electric
     | 
      tt
     | 
      6BK7B.pdf (419609 bytes)
   | 
    | 
      6BK7B
     | 
      Tung-Sol
     | 
      tt
     | 
      6BK7A.pdf (169917 bytes)
   | 
    | 
      6BK7B
     | 
      RCA (RC30)
     | 
      tt
     | 
      6BK7B.pdf (267906 bytes)
   | 
    | 
      6BK8
     | 
      AWV
     | 
      p
     | 
      6BK8.pdf (54631 bytes)
   | 
    | 
      6BL4
     | 
      RCA (HB3)
     | 
      R
     | 
      6BL4.pdf (73507 bytes)
   | 
    | 
      6BL4
     | 
      Sylvania
     | 
      R
     | 
      6BL4.pdf (154221 bytes)
   | 
    | 
      6BL6
     | 
      Sylvania
     | 
      KLY
     | 
      6BL6.pdf (355991 bytes)
   | 
    | 
      6BL7GT
     | 
      RCA (HB3)
     | 
      tt
     | 
      6BL7GT.pdf (142865 bytes)
   | 
    | 
      6BL7GT
     | 
      Tung-Sol
     | 
      tt
     | 
      6BL7GT.pdf (160653 bytes)
   | 
    | 
      6BL7GTA
     | 
      RCA (HB3)
     | 
      tt
     | 
      6BL7GTA.pdf (152501 bytes)
   | 
    
      6BL7GTA  
     | 
      General Electric
     | 
      tt
     | 
      6BL7GTA.pdf (339932 bytes)
   | 
    
      6BL7GTA  
     | 
      Tung-Sol
     | 
      tt
     | 
      6BL7GTA.pdf (209556 bytes)
   | 
    | 
      6BL7GTA
     | 
      RCA (RC30)
     | 
      tt
     | 
      6BK7B.pdf (267906 bytes)
   | 
    | 
      6BL8
     | 
      RCA (HB3)
     | 
      tp
     | 
      6BL8.pdf (80705 bytes)
   | 
    | 
      6BL8
     | 
      Tung-Sol
     | 
      tp
     | 
      6BL8.pdf (249344 bytes)
   | 
    | 
      6BL8
     | 
      RCA (RC30)
     | 
      tp
     | 
      6BK7B.pdf (267906 bytes)
   | 
    | 
      6BM5
     | 
      Mazda-Belvu
     | 
      P
     | 
      6BM5.pdf (408583 bytes) (fr)
   | 
    | 
      6BM6
     | 
      Sylvania
     | 
      KLY
     | 
      6BM6.pdf (336621 bytes)
   | 
    | 
      6BM6A
     | 
      Sylvania
     | 
      KLY
     | 
      6BM6A.pdf (367621 bytes)
   | 
    
      6BM8  
     | 
      RCA (HB3)
     | 
      tP
     | 
      6BM8.pdf (71067 bytes)
   | 
    | 
      6BM8
     | 
      Tung-Sol
     | 
      tP
     | 
      6BM8.pdf (128965 bytes)
   | 
    | 
      6BM8
     | 
      Svetlana
     | 
      tP
     | 
      6BM8.pdf (123198 bytes)
   | 
    
      6BM8  
     | 
      RCA (RC30)
     | 
      tP
     | 
      6BK7B.pdf (267906 bytes)
   | 
    | 
      6BN11
     | 
      General Electric
     | 
      pp
     | 
      6BN11.pdf (473964 bytes)
   | 
    | 
      6BN11
     | 
      RCA (RC30)
     | 
      pp
     | 
      6BN11.pdf (549900 bytes)
   | 
    | 
      6BN4
     | 
      General Electric
     | 
      t
     | 
      6BN4.pdf (351408 bytes)
   | 
    | 
      6BN4
     | 
      Tung-Sol
     | 
      t
     | 
      6BN4.pdf (73054 bytes)
   | 
    
      6BN4A  
     | 
      RCA (HB3)
     | 
      t
     | 
      6BN4A.pdf (169180 bytes)
   | 
    | 
      6BN4A
     | 
      Tung-Sol
     | 
      t
     | 
      6BN4.pdf (73054 bytes)
   | 
    
      6BN4A  
     | 
      RCA (RC30)
     | 
      t
     | 
      6BK7B.pdf (267906 bytes)
   | 
    | 
      6BN5
     | 
      Philips
     | 
      P
     | 
      6BN5.pdf (401207 bytes)
   | 
    
      6BN6    
     | 
      RCA (HB3)
     | 
      p
     | 
      6BN6.pdf (350849 bytes)
   | 
    | 
      6BN6
     | 
      General Electric
     | 
      p
     | 
      6BN6.pdf (506336 bytes)
   | 
    | 
      6BN6
     | 
      Tung-Sol
     | 
      p
     | 
      6BN6.pdf (119724 bytes)
   | 
    
      6BN6    
     | 
      RCA (RC30)
     | 
      p
     | 
      6BK7B.pdf (267906 bytes)
   | 
    | 
      6BN7
     | 
      Tung-Sol
     | 
      tt
     | 
      6BN7.pdf (155345 bytes)
   | 
    | 
      6BN7
     | 
      Tung-Sol
     | 
      tt
     | 
      6BN7.pdf (80715 bytes)
   | 
    | 
      6BN8
     | 
      RCA (HB3)
     | 
      ddt
     | 
      6BN8.pdf (206594 bytes)
   | 
    
      6BN8  
     | 
      Sylvania
     | 
      ddt
     | 
      6BN8.pdf (182530 bytes)
   | 
    | 
      6BN8
     | 
      Tung-Sol
     | 
      ddt
     | 
      6BN8.pdf (86623 bytes)
   | 
    
      6BN8  
     | 
      Sylvania
     | 
      ddt
     | 
      6BN8.pdf (445667 bytes)
   | 
    | 
      6BN8
     | 
      RCA (RC30)
     | 
      ddt
     | 
      6BN8.pdf (67785 bytes)
   | 
    | 
      6BQ5 (= EL84)
     | 
      Mazda-Belvu
     | 
      P
     | 
      EL84.pdf (766772 bytes) (fr)
   | 
    
      6BQ5  
     | 
      RCA (HB3)
     | 
      P
     | 
      6BQ5.pdf (173703 bytes)
   | 
    
      6BQ5  
     | 
      General Electric
     | 
      P
     | 
      6BQ5.pdf (667997 bytes)
   | 
    | 
      6BQ5
     | 
      Tung-Sol
     | 
      P
     | 
      6BQ5.pdf (660539 bytes)
   | 
    
      6BQ5  
     | 
      RCA (RC30)
     | 
      P
     | 
      6BN11.pdf (549900 bytes)
   | 
    | 
      6BQ6G
     | 
      Sylvania
     | 
      P
     | 
      6BQ6G.pdf (137659 bytes)
   | 
    | 
      6BQ6GA
     | 
      General Electric
     | 
      P
     | 
      6BQ6GA.pdf (354207 bytes)
   | 
    | 
      6BQ6GT
     | 
      Tung-Sol
     | 
      P
     | 
      6BQ6GT.pdf (148244 bytes)
   | 
    | 
      6BQ6GT
     | 
      Sylvania
     | 
      P
     | 
      6BQ6GT.pdf (398528 bytes)
   | 
    | 
      6BQ6GTB
     | 
      RCA (HB3)
     | 
      P
     | 
      6BQ6GTB.pdf (152446 bytes)
   | 
    | 
      6BQ6GTB
     | 
      General Electric
     | 
      P
     | 
      6BQ6GTB.pdf (326868 bytes)
   | 
    | 
      6BQ6GTB
     | 
      Tung-Sol
     | 
      P
     | 
      6BQ6GTB.pdf (139227 bytes)
   | 
    | 
      6BQ6GTB
     | 
      RCA (RC30)
     | 
      P
     | 
      6BN11.pdf (549900 bytes)
   | 
    | 
      6BQ7
     | 
      Tung-Sol
     | 
      tt
     | 
      6BQ7.pdf (70443 bytes)
   | 
    | 
      6BQ7A
     | 
      Mazda-Belvu
     | 
      tt
     | 
      6BQ7A.pdf (112686 bytes) (fr)
   | 
    
      6BQ7A        
     | 
      RCA (HB3)
     | 
      tt
     | 
      6BQ7A.pdf (162953 bytes)
   | 
    
      6BQ7A  
     | 
      General Electric
     | 
      tt
     | 
      6BQ7A.pdf (561328 bytes)
   | 
    | 
      6BQ7A
     | 
      Tung-Sol
     | 
      tt
     | 
      6BQ7A.pdf (261499 bytes)
   | 
    | 
      6BQ7A
     | 
      Brimar
     | 
      tt
     | 
      6BQ7A.pdf (99533 bytes)
   | 
    
      6BQ7A        
     | 
      RCA (RC30)
     | 
      tt
     | 
      6BN11.pdf (549900 bytes)
   | 
    | 
      6BR3
     | 
      RCA (RC30)
     | 
      R
     | 
      6BN11.pdf (549900 bytes)
   | 
    | 
      6BR3
     | 
      Toshiba
     | 
      R
     | 
      6BR3.pdf (90838 bytes)
   | 
    | 
      6BR5
     | 
      Rogers
     | 
      ti
     | 
      6BR5.pdf (84662 bytes)
   | 
    | 
      6BR7
     | 
      Brimar
     | 
      p
     | 
      6BR7.pdf (115304 bytes)
   | 
    | 
      6BR7
     | 
      Brimar
     | 
      p
     | 
      6BR7.pdf (127184 bytes)
   | 
    | 
      6BR7
     | 
      Brimar
     | 
      p
     | 
      6BR7.pdf (3526396 bytes)
   | 
    | 
      6BR8
     | 
      General Electric
     | 
      tp
     | 
      6BR8.pdf (605346 bytes)
   | 
    | 
      6BR8A
     | 
      RCA (HB3)
     | 
      tp
     | 
      6BR8A.pdf (79972 bytes)
   | 
    | 
      6BR8A
     | 
      Tung-Sol
     | 
      tp
     | 
      6BR8A.pdf (82840 bytes)
   | 
    | 
      6BR8A
     | 
      RCA (RC30)
     | 
      tp
     | 
      6BN11.pdf (549900 bytes)
   | 
    | 
      6BS3
     | 
      RCA (HB3)
     | 
      R
     | 
      6BS3.pdf (77215 bytes)
   | 
    | 
      6BS3A
     | 
      RCA (HB3)
     | 
      R
     | 
      6BS3A.pdf (59452 bytes)
   | 
    | 
      6BS3A
     | 
      RCA (RC30)
     | 
      R
     | 
      6BN11.pdf (549900 bytes)
   | 
    | 
      6BS5
     | 
      AteliersBelvu
     | 
      P~
     | 
      6BS5.pdf (951757 bytes)
   | 
    | 
      6BS7
     | 
      Brimar
     | 
      p
     | 
      6BS7.pdf (1640107 bytes)
   | 
    | 
      6BS7
     | 
      Brimar
     | 
      p
     | 
      6BS7.pdf (94327 bytes)
   | 
    | 
      6BS7
     | 
      Brimar
     | 
      p
     | 
      6BS7.pdf (3087049 bytes)
   | 
    | 
      6BS8
     | 
      General Electric
     | 
      tt
     | 
      6BS8.pdf (519065 bytes)
   | 
    | 
      6BS8
     | 
      Tung-Sol
     | 
      tt
     | 
      6BS8.pdf (66963 bytes)
   | 
    | 
      6BS8
     | 
      RCA (RC30)
     | 
      tt
     | 
      6BN11.pdf (549900 bytes)
   | 
    | 
      6BT4
     | 
      Philips
     | 
      rr
     | 
      6BT4.pdf (73057 bytes)
   | 
    | 
      6BT6
     | 
      Tung-Sol
     | 
      ddt
     | 
      6BT6.pdf (124036 bytes)
   | 
    | 
      6BT6
     | 
      Sylvania
     | 
      ddt
     | 
      6BT6.pdf (33614 bytes)
   | 
    | 
      6BT8
     | 
      Sylvania
     | 
      ddp
     | 
      6BT8.pdf (70409 bytes)
   | 
    | 
      6BU4
     | 
      CBS-Hytron
     | 
       
     | 
      6BU4.pdf (134071 bytes)
   | 
    | 
      6BU5
     | 
      Tung-Sol
     | 
      P
     | 
      6BU5.pdf (211218 bytes)
   | 
    | 
      6BU6
     | 
      Tung-Sol
     | 
      ddt
     | 
      6BU6.pdf (155222 bytes)
   | 
    | 
      6BU6
     | 
      Sylvania
     | 
      ddt
     | 
      6BU6.pdf (34972 bytes)
   | 
    | 
      6BU8
     | 
      RCA (HB3)
     | 
      pp
     | 
      6BU8.pdf (326595 bytes)
   | 
    | 
      6BU8
     | 
      General Electric
     | 
      pp
     | 
      6BU8.pdf (925412 bytes)
   | 
    | 
      6BU8
     | 
      Tung-Sol
     | 
      pp
     | 
      6BU8.pdf (488590 bytes)
   | 
    | 
      6BU8
     | 
      RCA (RC30)
     | 
      pp
     | 
      6BN11.pdf (549900 bytes)
   | 
    | 
      6BU8A
     | 
      CanadianGeneralElectric
     | 
       
     | 
      3BU8A.pdf (110289 bytes)
   | 
    | 
      6BV11
     | 
      Sylvania
     | 
      pp
     | 
      6BV11.pdf (128055 bytes)
   | 
    | 
      6BV11
     | 
      General Electric
     | 
      pp
     | 
      6BV11.pdf (445882 bytes)
   | 
    | 
      6BV11
     | 
      RCA (RC30)
     | 
      pp
     | 
      6BN11.pdf (549900 bytes)
   | 
    | 
      6BV7
     | 
      AWV
     | 
      ddP
     | 
      6BV7.pdf (135640 bytes)
   | 
    | 
      6BV7
     | 
      AWV
     | 
      ddP
     | 
      6BV7_AWV.pdf (239006 bytes)
   | 
    | 
      6BV7
     | 
      AWV
     | 
      ddP
     | 
      6BV7.pdf (67542 bytes)
   | 
    | 
      6BV8
     | 
      General Electric
     | 
      ddt
     | 
      6BV8.pdf (422014 bytes)
   | 
    | 
      6BV8
     | 
      Tung-Sol
     | 
      ddt
     | 
      6BV8.pdf (243767 bytes)
   | 
    | 
      6BW11
     | 
      General Electric
     | 
      pp
     | 
      6BW11.pdf (658206 bytes)
   | 
    | 
      6BW11
     | 
      RCA (RC30)
     | 
      pp
     | 
      6BN11.pdf (549900 bytes)
   | 
    | 
      6BW3
     | 
      General Electric
     | 
      R
     | 
      6BW3.pdf (193273 bytes)
   | 
    | 
      6BW3
     | 
      RCA (RC30)
     | 
      R
     | 
      6BY6.pdf (790979 bytes)
   | 
    | 
      6BW4
     | 
      Sylvania
     | 
      rr
     | 
      6BW4.pdf (123126 bytes)
   | 
    | 
      6BW4
     | 
      Tung-Sol
     | 
      rr
     | 
      6BW4.pdf (123045 bytes)
   | 
    | 
      6BW4
     | 
      Sylvania
     | 
      rr
     | 
      6BW4.pdf (373071 bytes)
   | 
    
      6BW6  
     | 
      Brimar
     | 
      P
     | 
      6BW6.pdf (156968 bytes)
   | 
    
      6BW6  
     | 
      Brimar
     | 
      P
     | 
      6BW6.pdf (65160 bytes)
   | 
    
      6BW6  
     | 
      Brimar
     | 
      P
     | 
      6BW6.pdf (2962173 bytes)
   | 
    | 
      6BW7
     | 
      Brimar
     | 
      p
     | 
      6BW7.pdf (104549 bytes)
   | 
    
      6BW8  
     | 
      RCA (HB3)
     | 
      ddp
     | 
      6BW8.pdf (79371 bytes)
   | 
    | 
      6BW8
     | 
      General Electric
     | 
      ddp
     | 
      6BW8.pdf (596121 bytes)
   | 
    
      6BW8  
     | 
      Tung-Sol
     | 
      ddp
     | 
      6BW8.pdf (246445 bytes)
   | 
    | 
      6BX4
     | 
      Mazda-Belvu
     | 
      rr
     | 
      6BX4.pdf (68439 bytes) (fr)
   | 
    | 
      6BX4
     | 
      AteliersBelvu
     | 
      rr
     | 
      6BX4.pdf (95296 bytes)
   | 
    | 
      6BX6 (= EF80)
     | 
      Mazda-Belvu
     | 
      p
     | 
      EF80.pdf (401856 bytes) (fr)
   | 
    | 
      6BX6 (= EF80)
     | 
      RFT
     | 
      p
     | 
      EF80.pdf (102552 bytes) (de)
   | 
    | 
      6BX6 (= EF80)
     | 
      Brimar
     | 
      p
     | 
      EF80.pdf (35099 bytes)
   | 
    | 
      6BX6
     | 
      Philips
     | 
      p
     | 
      6BX6.pdf (163000 bytes)
   | 
    | 
      6BX7GT
     | 
      General Electric
     | 
      tT
     | 
      6BX7GT.pdf (335258 bytes)
   | 
    | 
      6BX7GT
     | 
      Tung-Sol
     | 
      tT
     | 
      6BX7GT.pdf (76311 bytes)
   | 
    | 
      6BX8
     | 
      Tung-Sol
     | 
      tt
     | 
      6BX8.pdf (81378 bytes)
   | 
    | 
      6BY11
     | 
      Sylvania
     | 
      pP
     | 
      6BY11.pdf (112268 bytes)
   | 
    | 
      6BY4
     | 
      GE
     | 
       
     | 
      6BY4.pdf (119900 bytes)
   | 
    | 
      6BY5G
     | 
      Tung-Sol
     | 
      rr
     | 
      6BY5G.pdf (47149 bytes)
   | 
    | 
      6BY5GA
     | 
      RCA (HB3)
     | 
      rr
     | 
      6BY5GA.pdf (66391 bytes)
   | 
    | 
      6BY6
     | 
      RCA (HB3)
     | 
      H
     | 
      6BY6.pdf (284543 bytes)
   | 
    | 
      6BY6
     | 
      General Electric
     | 
      H
     | 
      6BY6.pdf (611130 bytes)
   | 
    | 
      6BY6
     | 
      Tung-Sol
     | 
      H
     | 
      6BY6.pdf (249600 bytes)
   | 
    | 
      6BY6
     | 
      RCA (RC30)
     | 
      H
     | 
      6BY6.pdf (790979 bytes)
   | 
    | 
      6BY7 (= EF85)
     | 
      Mazda-Belvu
     | 
      p
     | 
      EF85.pdf (365024 bytes) (fr)
   | 
    | 
      6BY7
     | 
      Philips
     | 
      p
     | 
      6BY7.pdf (237616 bytes)
   | 
    | 
      6BY8
     | 
      RCA (HB3)
     | 
      dp
     | 
      6BY8.pdf (131924 bytes)
   | 
    | 
      6BY8
     | 
      Tung-Sol
     | 
      dp
     | 
      6BY8.pdf (84542 bytes)
   | 
    
      6BY8  
     | 
      Sylvania
     | 
      dp
     | 
      6BY8.pdf (790013 bytes)
   | 
    | 
      6BY8
     | 
      RCA (RC30)
     | 
      dp
     | 
      6BY6.pdf (790979 bytes)
   | 
    
      6BZ3  
     | 
      General Electric
     | 
      R
     | 
      6BZ3.pdf (197077 bytes)
   | 
    | 
      6BZ3
     | 
      RCA (RC30)
     | 
      R
     | 
      6BC4.pdf (510539 bytes)
   | 
    
      6BZ6  
     | 
      RCA (HB3)
     | 
      p
     | 
      6BZ6.pdf (263083 bytes)
   | 
    
      6BZ6    
     | 
      General Electric
     | 
      p
     | 
      6BZ6.pdf (559425 bytes)
   | 
    | 
      6BZ6
     | 
      Tung-Sol
     | 
      p
     | 
      6BZ6.pdf (260156 bytes)
   | 
    
      6BZ6  
     | 
      RCA (RC30)
     | 
      p
     | 
      6BY6.pdf (790979 bytes)
   | 
    | 
      6BZ7
     | 
      RCA (HB3)
     | 
      tt
     | 
      6BZ7.pdf (123633 bytes)
   | 
    
      6BZ7  
     | 
      General Electric
     | 
      tt
     | 
      6BZ7.pdf (578518 bytes)
   | 
    | 
      6BZ7
     | 
      Tung-Sol
     | 
      tt
     | 
      6BZ7.pdf (64675 bytes)
   | 
    | 
      6BZ7
     | 
      RCA (RC30)
     | 
      tt
     | 
      6BN11.pdf (549900 bytes)
   | 
    | 
      6BZ8
     | 
      Sylvania
     | 
      tt
     | 
      6BZ8.pdf (70565 bytes)
   | 
    | 
      6BZ8
     | 
      Tung-Sol
     | 
      tt
     | 
      6BZ8.pdf (69993 bytes)
   | 
    | 
      6BZ8
     | 
      RCA (RC30)
     | 
      tt
     | 
      6BC4.pdf (510539 bytes)
   | 
    | 
      6C (= EL6C)
     | 
      Electrons Inc
     | 
      rr
     | 
      EL6C.pdf (105716 bytes)
   | 
    | 
      6C-A10
     | 
      Matsushita
     | 
      T
     | 
      50C-A10.pdf (188181 bytes) (jp)
   | 
    | 
      6C10
     | 
      Tung-Sol
     | 
      ttt
     | 
      6C10.pdf (77379 bytes)
   | 
    | 
      6C10
     | 
      GE
     | 
      ttt
     | 
      6C10.pdf (117486 bytes)
   | 
    
      6C10P 6 10 
     | 
      Soviet
     | 
      R
     | 
      6C10P.pdf (146515 bytes)
   | 
    | 
      6C10
     | 
      Mazda
     | 
      th
     | 
      6C10.pdf (82459 bytes)
   | 
    
      6C13P 6 13 
     | 
      Soviet
     | 
      r
     | 
      6C13P.pdf (110364 bytes)
   | 
    
      6C17S 6 17 
     | 
      Soviet
     | 
      R
     | 
      6C17S.pdf (62250 bytes)
   | 
    
      6C19P 6 19 
     | 
      Soviet
     | 
      R
     | 
      6C19P.pdf (152710 bytes)
   | 
    | 
      6C21
     | 
      Eimac
     | 
      T~
     | 
      6C21.pdf (990221 bytes)
   | 
    | 
      6C23
     | 
      FTR
     | 
       
     | 
      6C23.pdf (60124 bytes)
   | 
    | 
      6C24
     | 
      RCA (HB3)
     | 
      T~
     | 
      6C24.pdf (508600 bytes)
   | 
    | 
      6C24
     | 
      RCA
     | 
      T~
     | 
      6C24.pdf (508973 bytes)
   | 
    | 
      6C31
     | 
      Mazda
     | 
      th
     | 
      6C31.pdf (417729 bytes)
   | 
    | 
      6C4 (= EC90)
     | 
      Philips
     | 
      t
     | 
      EC90.pdf (138825 bytes)
   | 
    | 
      6C4
     | 
      RCA (HB3)
     | 
      t
     | 
      6C4.pdf (213770 bytes)
   | 
    | 
      6C4
     | 
      General Electric
     | 
      t
     | 
      6C4.pdf (370609 bytes)
   | 
    | 
      6C4
     | 
      Tung-Sol
     | 
      t
     | 
      6C4.pdf (188330 bytes)
   | 
    | 
      6C4
     | 
      Brimar
     | 
      t
     | 
      6C4.pdf (46301 bytes)
   | 
    | 
      6C4
     | 
      RCA (RC30)
     | 
      t
     | 
      6BY6.pdf (790979 bytes)
   | 
    | 
      6C4 (= 6100)
     | 
      JEDEC
     | 
      t
     | 
      6100.pdf (67695 bytes)
   | 
    
      6C4PEV 6 4   
     | 
      Soviet
     | 
      rr
     | 
      6C4PEV.pdf (105719 bytes)
   | 
    
      6C4P 6 4 
     | 
      Soviet
     | 
      rr
     | 
      6C4P.pdf (68137 bytes)
   | 
    | 
      6C4W
     | 
      Raytheon
     | 
      t
     | 
      6C4W.pdf (476691 bytes)
   | 
    | 
      6C4WA (= CK6100)
     | 
      Raytheon
     | 
      t
     | 
      6100.pdf (708402 bytes)
   | 
    | 
      6C5
     | 
      RCA
     | 
      t
     | 
      6C5.pdf (41756 bytes)
   | 
    | 
      6C5
     | 
      RCA
     | 
      t
     | 
      6C5.pdf (49175 bytes)
   | 
    | 
      6C5
     | 
      Sylvania
     | 
      t
     | 
      6C5.pdf (61155 bytes) (fr)
   | 
    | 
      6C5
     | 
      Tung-Sol
     | 
      t
     | 
      6C5.pdf (109606 bytes)
   | 
    | 
      6C5G
     | 
      Sylvania
     | 
      t
     | 
      6C5.pdf (61155 bytes) (fr)
   | 
    | 
      6C5G
     | 
      Tung-Sol
     | 
      t
     | 
      6C5.pdf (109606 bytes)
   | 
    | 
      6C5G
     | 
      Brimar
     | 
      t
     | 
      6C5G.pdf (66106 bytes)
   | 
    | 
      6C5GT
     | 
      Tung-Sol
     | 
      t
     | 
      6C5.pdf (109606 bytes)
   | 
    | 
      6C5P
     | 
      Shuguang
     | 
      q
     | 
      6C5P.pdf (120449 bytes) (zh)
   | 
    
      6C5S 6 5 
     | 
      Soviet
     | 
      rr
     | 
      6C5S.pdf (63997 bytes)
   | 
    | 
      6C6
     | 
      RCA
     | 
      p
     | 
      6C6.pdf (48399 bytes)
   | 
    
      6C6  
     | 
      Sylvania
     | 
      p
     | 
      6C6.pdf (86484 bytes) (fr)
   | 
    | 
      6C6
     | 
      Tung-Sol
     | 
      p
     | 
      6C6.pdf (145893 bytes)
   | 
    
      6C6  
     | 
      Brimar
     | 
      p
     | 
      6C5G.pdf (66106 bytes)
   | 
    | 
      6C7
     | 
      RCA (HB3)
     | 
      ddt
     | 
      6C7.pdf (31890 bytes)
   | 
    | 
      6C7
     | 
      Tung-Sol
     | 
      ddt
     | 
      6C7.pdf (33288 bytes)
   | 
    
      6C8G  
     | 
      RCA (HB3)
     | 
      tt
     | 
      6C8G.pdf (91925 bytes)
   | 
    | 
      6C8G
     | 
      Sylvania
     | 
      tt
     | 
      6C8G.pdf (66222 bytes) (fr)
   | 
    
      6C8G  
     | 
      Tung-Sol
     | 
      tt
     | 
      6C8G.pdf (114485 bytes)
   | 
    | 
      6C8G
     | 
      Ken-Rad
     | 
      tt
     | 
      6C8G.pdf (31760 bytes)
   | 
    | 
      6C8P
     | 
      Shuguang
     | 
      t
     | 
      6C8P.pdf (108686 bytes) (zh)
   | 
    | 
      6C9
     | 
      Sylvania
     | 
      qq
     | 
      6C9.pdf (117274 bytes)
   | 
    
      6C9  
     | 
      RCA (RC30)
     | 
      qq
     | 
      6BY6.pdf (790979 bytes)
   | 
    
      6C9    
     | 
      Mazda
     | 
      tH
     | 
      6C9.pdf (96973 bytes)
   | 
    | 
      6CA11
     | 
      General Electric
     | 
      ttp
     | 
      6CA11.pdf (741414 bytes)
   | 
    | 
      6CA4 (= EZ81)
     | 
      Mazda-Belvu
     | 
      rr
     | 
      EZ81.pdf (608378 bytes) (fr)
   | 
    | 
      6CA4
     | 
      RCA (HB3)
     | 
      rr
     | 
      6CA4.pdf (100420 bytes)
   | 
    
      6CA4  
     | 
      General Electric
     | 
      rr
     | 
      6CA4.pdf (513540 bytes)
   | 
    | 
      6CA4
     | 
      Tung-Sol
     | 
      rr
     | 
      6CA4.pdf (283397 bytes)
   | 
    | 
      6CA4
     | 
      RCA (RC30)
     | 
      rr
     | 
      6BY6.pdf (790979 bytes)
   | 
    | 
      6CA5
     | 
      RCA (HB3)
     | 
      P
     | 
      6CA5.pdf (66888 bytes)
   | 
    | 
      6CA5
     | 
      General Electric
     | 
      P
     | 
      6CA5.pdf (407734 bytes)
   | 
    | 
      6CA5
     | 
      Sylvania
     | 
      P
     | 
      6CA5.pdf (575908 bytes)
   | 
    | 
      6CA5
     | 
      RCA (RC30)
     | 
      P
     | 
      6BY6.pdf (790979 bytes)
   | 
    | 
      6CA7
     | 
      Tung-Sol
     | 
      P
     | 
      6CA7.pdf (542314 bytes)
   | 
    | 
      6CA7 (= EL34)
     | 
      Svetlana
     | 
      P
     | 
      EL34.pdf (47964 bytes)
   | 
    | 
      6CA7
     | 
      RCA (RC30)
     | 
      P
     | 
      6BY6.pdf (790979 bytes)
   | 
    | 
      6CB5
     | 
      RCA (HB3)
     | 
      P
     | 
      6CB5.pdf (240141 bytes)
   | 
    | 
      6CB5
     | 
      Tung-Sol
     | 
      P
     | 
      6CB5.pdf (146644 bytes)
   | 
    | 
      6CB5
     | 
      Sylvania
     | 
      P
     | 
      6CB5.pdf (293617 bytes)
   | 
    | 
      6CB5A
     | 
      RCA (HB3)
     | 
      P
     | 
      6CB5A.pdf (260224 bytes)
   | 
    | 
      6CB5A
     | 
      Tung-Sol
     | 
      P
     | 
      6CB5A.pdf (121035 bytes)
   | 
    | 
      6CB5A
     | 
      Sylvania
     | 
      P
     | 
      6CB5.pdf (293617 bytes)
   | 
    | 
      6CB5A
     | 
      RCA (RC30)
     | 
      P
     | 
      6BY6.pdf (790979 bytes)
   | 
    | 
      6CB6
     | 
      Mazda-Belvu
     | 
      p
     | 
      6CB6.pdf (471422 bytes) (fr)
   | 
    | 
      6CB6
     | 
      RCA (HB3)
     | 
      p
     | 
      6CB6.pdf (217353 bytes)
   | 
    | 
      6CB6
     | 
      Tung-Sol
     | 
      p
     | 
      6CB6.pdf (131985 bytes)
   | 
    | 
      6CB6
     | 
      Mullard
     | 
      p
     | 
      6CB6.pdf (38950 bytes)
   | 
    
      6CB6A   (= 6676)
     | 
      RCA (HB3)
     | 
      p
     | 
      6676.pdf (93491 bytes)
   | 
    
      6CB6A  
     | 
      RCA (HB3)
     | 
      p
     | 
      6CB6A.pdf (193517 bytes)
   | 
    | 
      6CB6A
     | 
      General Electric
     | 
      p
     | 
      6CB6A.pdf (439688 bytes)
   | 
    | 
      6CB6A
     | 
      Tung-Sol
     | 
      p
     | 
      6CB6.pdf (131985 bytes)
   | 
    
      6CB6A  
     | 
      RCA (RC30)
     | 
      p
     | 
      6BY6.pdf (790979 bytes)
   | 
    | 
      6CC10
     | 
      Tesla
     | 
      tt
     | 
      6CC10.pdf (700653 bytes) (cs)
   | 
    
      6CC31  
     | 
      Tesla
     | 
      tt
     | 
      6CC31.pdf (425619 bytes) (cs)
   | 
    | 
      6CC41
     | 
      Tesla
     | 
      tt
     | 
      6CC41.pdf (814677 bytes) (cs)
   | 
    | 
      6CC42
     | 
      Tesla
     | 
      tt
     | 
      6CC42.pdf (1103347 bytes) (cs)
   | 
    | 
      6CD3
     | 
      Tung-Sol
     | 
      R
     | 
      6CD3.pdf (76722 bytes)
   | 
    | 
      6CD3
     | 
      RCA (RC30)
     | 
      R
     | 
      6BY6.pdf (790979 bytes)
   | 
    | 
      6CD6G
     | 
      Tung-Sol
     | 
      P
     | 
      6CD6G.pdf (137718 bytes)
   | 
    | 
      6CD6G
     | 
      Sylvania
     | 
      P
     | 
      6CD6G.pdf (303416 bytes)
   | 
    | 
      6CD6G
     | 
      Brimar
     | 
      P
     | 
      6CD6G.pdf (100817 bytes)
   | 
    | 
      6CD6G
     | 
      Brimar
     | 
      P
     | 
      6CD6G.pdf (1366546 bytes)
   | 
    
      6CD6GA    
     | 
      RCA (HB3)
     | 
      P
     | 
      6CD6GA.pdf (226179 bytes)
   | 
    
      6CD6GA      
     | 
      General Electric
     | 
      P
     | 
      6CD6GA.pdf (417930 bytes)
   | 
    | 
      6CD6GA
     | 
      Tung-Sol
     | 
      P
     | 
      6CD6GA.pdf (79759 bytes)
   | 
    
      6CD6GA    
     | 
      RCA (RC30)
     | 
      P
     | 
      6BY6.pdf (790979 bytes)
   | 
    | 
      6CD7
     | 
      Rogers
     | 
      tii
     | 
      6CD7.pdf (174332 bytes)
   | 
    | 
      6CE3
     | 
      RCA (HB3)
     | 
      R
     | 
      6CE3.pdf (75703 bytes)
   | 
    | 
      6CE3
     | 
      RCA (RC30)
     | 
      R
     | 
      6BY6.pdf (790979 bytes)
   | 
    | 
      6CE5
     | 
      General Electric
     | 
      p
     | 
      6CE5.pdf (464866 bytes)
   | 
    | 
      6CE5
     | 
      Tung-Sol
     | 
      p
     | 
      6CE5.pdf (293155 bytes)
   | 
    | 
      6CE5
     | 
      RCA (RC30)
     | 
      p
     | 
      6BC4.pdf (510539 bytes)
   | 
    
      6CF6  
     | 
      General Electric
     | 
      p
     | 
      6CF6.pdf (494418 bytes)
   | 
    | 
      6CF6
     | 
      Tung-Sol
     | 
      p
     | 
      6CF6.pdf (175806 bytes)
   | 
    
      6CF6  
     | 
      RCA (RC30)
     | 
      p
     | 
      6BY6.pdf (790979 bytes)
   | 
    | 
      6CF8 (= EF86)
     | 
      Mazda-Belvu
     | 
      p
     | 
      EF86.pdf (640469 bytes) (fr)
   | 
    | 
      6CG3
     | 
      RCA (HB3)
     | 
      R
     | 
      6CG3.pdf (73834 bytes)
   | 
    
      6CG3  
     | 
      General Electric
     | 
      R
     | 
      6CG3.pdf (202573 bytes)
   | 
    | 
      6CG3
     | 
      RCA (RC30)
     | 
      R
     | 
      6BY6.pdf (790979 bytes)
   | 
    | 
      6CG6
     | 
      Sylvania
     | 
      p
     | 
      6CG6.pdf (37773 bytes)
   | 
    
      6CG7      
     | 
      General Electric
     | 
      tt
     | 
      6CG7.pdf (470844 bytes)
   | 
    | 
      6CG7
     | 
      Tung-Sol
     | 
      tt
     | 
      6CG7.pdf (171161 bytes)
   | 
    
      6CG7  
     | 
      RCA (RC30)
     | 
      tt
     | 
      6FQ7.pdf (132542 bytes)
   | 
    | 
      6CG8
     | 
      Sylvania
     | 
      tp
     | 
      6CG8.pdf (165774 bytes)
   | 
    | 
      6CG8A
     | 
      RCA (HB3)
     | 
      tp
     | 
      6CG8A.pdf (88516 bytes)
   | 
    | 
      6CG8A
     | 
      Sylvania
     | 
      tp
     | 
      6CG8.pdf (165774 bytes)
   | 
    | 
      6CG8A
     | 
      Tung-Sol
     | 
      tp
     | 
      6CG8A.pdf (286936 bytes)
   | 
    | 
      6CG8A
     | 
      General Electric
     | 
      tp
     | 
      6CG8A.pdf (572895 bytes)
   | 
    | 
      6CG8A
     | 
      RCA (RC30)
     | 
      tp
     | 
      6CG8A.pdf (207258 bytes)
   | 
    | 
      6CH3
     | 
      RCA (RC30)
     | 
      R
     | 
      6CG8A.pdf (207258 bytes)
   | 
    
      6CH6  
     | 
      Brimar
     | 
      P
     | 
      6CH6.pdf (100639 bytes)
   | 
    
      6CH6  
     | 
      Brimar
     | 
      P
     | 
      6CH6.pdf (3362334 bytes)
   | 
    | 
      6CH6
     | 
      STC/Brimar
     | 
      P
     | 
      6CH6.pdf (142436 bytes)
   | 
    | 
      6CH7
     | 
      Tung-Sol
     | 
      tt
     | 
      6CH7.pdf (74102 bytes)
   | 
    | 
      6CH8
     | 
      Sylvania
     | 
      tp
     | 
      6CH8.pdf (141938 bytes)
   | 
    | 
      6CH8
     | 
      Tung-Sol
     | 
      tp
     | 
      6CH8.pdf (239929 bytes)
   | 
    | 
      6CJ3
     | 
      RCA (HB3)
     | 
      R
     | 
      6CJ3.pdf (72090 bytes)
   | 
    | 
      6CJ3
     | 
      General Electric
     | 
      R
     | 
      6CJ3.pdf (186708 bytes)
   | 
    | 
      6CJ3
     | 
      RCA (RC30)
     | 
      R
     | 
      6CG8A.pdf (207258 bytes)
   | 
    | 
      6CJ5
     | 
      Philips
     | 
      p
     | 
      6CJ5.pdf (110044 bytes)
   | 
    | 
      6CJ6
     | 
      Philips
     | 
      P
     | 
      6CJ6.pdf (380359 bytes)
   | 
    
      6CK3    
     | 
      RCA (HB3)
     | 
      R
     | 
      6CK3.pdf (87430 bytes)
   | 
    
      6CK3    
     | 
      RCA (RC30)
     | 
      R
     | 
      6CG8A.pdf (207258 bytes)
   | 
    | 
      6CK4
     | 
      RCA (HB3)
     | 
      T
     | 
      6CK4.pdf (71140 bytes)
   | 
    
      6CK4  
     | 
      General Electric
     | 
      T
     | 
      6CK4.pdf (366830 bytes)
   | 
    | 
      6CK4
     | 
      Tung-Sol
     | 
      T
     | 
      6CK4.pdf (73404 bytes)
   | 
    | 
      6CK5
     | 
      Philips
     | 
      P
     | 
      6CK5.pdf (90306 bytes)
   | 
    | 
      6CK6 (= EL83)
     | 
      Mazda-Belvu
     | 
      P
     | 
      EL83.pdf (373486 bytes) (fr)
   | 
    | 
      6CK6
     | 
      Philips
     | 
      P
     | 
      6CK6.pdf (217753 bytes)
   | 
    | 
      6CL3
     | 
      RCA (HB3)
     | 
      R
     | 
      6CL3.pdf (59676 bytes)
   | 
    | 
      6CL3
     | 
      RCA (RC30)
     | 
      R
     | 
      6CG8A.pdf (207258 bytes)
   | 
    
      6CL6  
     | 
      RCA (HB3)
     | 
      P
     | 
      6CL6.pdf (384250 bytes)
   | 
    
      6CL6      
     | 
      General Electric
     | 
      P
     | 
      6CL6.pdf (473387 bytes)
   | 
    | 
      6CL6
     | 
      Tung-Sol
     | 
      P
     | 
      6CL6.pdf (293966 bytes)
   | 
    | 
      6CL6
     | 
      CSF
     | 
      P
     | 
      6CL6.pdf (7322491 bytes) (fr)
   | 
    
      6CL6  
     | 
      RCA (RC30)
     | 
      P
     | 
      6CG8A.pdf (207258 bytes)
   | 
    | 
      6CL8
     | 
      RCA (HB3)
     | 
      tq
     | 
      6CL8.pdf (106225 bytes)
   | 
    | 
      6CL8
     | 
      General Electric
     | 
      tq
     | 
      6CL8.pdf (635269 bytes)
   | 
    | 
      6CL8A
     | 
      RCA (HB3)
     | 
      tq
     | 
      6CL8A.pdf (107862 bytes)
   | 
    | 
      6CL8A
     | 
      General Electric
     | 
      tq
     | 
      6CL8A.pdf (715251 bytes)
   | 
    | 
      6CL8A
     | 
      Tung-Sol
     | 
      tq
     | 
      6CL8A.pdf (162464 bytes)
   | 
    | 
      6CL8A
     | 
      RCA (RC30)
     | 
      tq
     | 
      6CL8A.pdf (210597 bytes)
   | 
    | 
      6CM3
     | 
      RCA (HB3)
     | 
      R
     | 
      6CM3.pdf (53011 bytes)
   | 
    | 
      6CM3
     | 
      RCA (RC30)
     | 
      R
     | 
      6CL8A.pdf (210597 bytes)
   | 
    | 
      6CM4
     | 
      Telefunken
     | 
      t
     | 
      6CM4.pdf (55636 bytes)
   | 
    | 
      6CM5
     | 
      Rogers
     | 
      P
     | 
      6CM5.pdf (340243 bytes)
   | 
    
      6CM6    
     | 
      RCA (HB3)
     | 
      P
     | 
      6CM6.pdf (133983 bytes)
   | 
    | 
      6CM6
     | 
      Tung-Sol
     | 
      P
     | 
      6CM6.pdf (91075 bytes)
   | 
    | 
      6CM6
     | 
      Sylvania
     | 
      P
     | 
      6CM6.pdf (714097 bytes)
   | 
    
      6CM7  
     | 
      RCA (HB3)
     | 
      tT
     | 
      6CM7.pdf (672598 bytes)
   | 
    
      6CM7  
     | 
      General Electric
     | 
      tT
     | 
      6CM7.pdf (461409 bytes)
   | 
    | 
      6CM7
     | 
      Tung-Sol
     | 
      tT
     | 
      6CM7.pdf (255920 bytes)
   | 
    
      6CM7  
     | 
      RCA (RC30)
     | 
      tT
     | 
      6CL8A.pdf (210597 bytes)
   | 
    | 
      6CM8
     | 
      Sylvania
     | 
      tp
     | 
      6CM8.pdf (148759 bytes)
   | 
    | 
      6CM8
     | 
      Tung-Sol
     | 
      tp
     | 
      6CM8.pdf (109838 bytes)
   | 
    | 
      6CM8
     | 
      Sylvania
     | 
      tp
     | 
      6CM8.pdf (1054175 bytes)
   | 
    | 
      6CN6
     | 
      Mullard
     | 
      P
     | 
      6CN6.pdf (42033 bytes)
   | 
    | 
      6CN7
     | 
      RCA (HB3)
     | 
      ddt
     | 
      6CN7.pdf (157160 bytes)
   | 
    
      6CN7  
     | 
      General Electric
     | 
      ddt
     | 
      6CN7.pdf (454273 bytes)
   | 
    | 
      6CN7
     | 
      Tung-Sol
     | 
      ddt
     | 
      6CN7.pdf (248503 bytes)
   | 
    | 
      6CN7
     | 
      RCA (RC30)
     | 
      ddt
     | 
      6CL8A.pdf (210597 bytes)
   | 
    | 
      6CQ4
     | 
      RCA (HB3)
     | 
      R
     | 
      6CQ4.pdf (58399 bytes)
   | 
    | 
      6CQ4
     | 
      Tung-Sol
     | 
      R
     | 
      6CQ4.pdf (77927 bytes)
   | 
    | 
      6CQ4
     | 
      RCA (RC30)
     | 
      R
     | 
      6DE4.pdf (380118 bytes)
   | 
    | 
      6CQ6 (= EF92)
     | 
      La Radiotechnique
     | 
      p
     | 
      EF92.pdf (36389 bytes) (fr)
   | 
    | 
      6CQ6S
     | 
      CSF
     | 
      p
     | 
      6CQ6S.pdf (4585910 bytes) (fr)
   | 
    | 
      6CQ8
     | 
      RCA (HB3)
     | 
      tq
     | 
      6CQ8.pdf (294592 bytes)
   | 
    
      6CQ8    
     | 
      General Electric
     | 
      tq
     | 
      6CQ8.pdf (560414 bytes)
   | 
    | 
      6CQ8
     | 
      Tung-Sol
     | 
      tq
     | 
      6CQ8.pdf (231090 bytes)
   | 
    | 
      6CQ8
     | 
      RCA (RC30)
     | 
      tq
     | 
      6CQ8.pdf (65118 bytes)
   | 
    | 
      6CR4
     | 
      MOValve
     | 
      t~
     | 
      6CR4.pdf (230972 bytes)
   | 
    | 
      6CR5
     | 
      CanadianWestinghouse
     | 
      P
     | 
      6CR5.pdf (179265 bytes)
   | 
    
      6CR6  
     | 
      Sylvania
     | 
      dp
     | 
      6CR6.pdf (110263 bytes)
   | 
    | 
      6CR6
     | 
      Tung-Sol
     | 
      dp
     | 
      6CR6.pdf (107464 bytes)
   | 
    
      6CR6  
     | 
      Sylvania
     | 
      dp
     | 
      6CR6.pdf (292564 bytes)
   | 
    | 
      6CS5
     | 
      Tung-Sol
     | 
      P
     | 
      6CS5.pdf (144162 bytes)
   | 
    
      6CS6  
     | 
      RCA (HB3)
     | 
      H
     | 
      6CS6.pdf (191423 bytes)
   | 
    | 
      6CS6
     | 
      General Electric
     | 
      H
     | 
      6CS6.pdf (347262 bytes)
   | 
    | 
      6CS6
     | 
      Tung-Sol
     | 
      H
     | 
      6CS6.pdf (289077 bytes)
   | 
    
      6CS6  
     | 
      RCA (RC30)
     | 
      H
     | 
      6CS6.pdf (457275 bytes)
   | 
    | 
      6CS7
     | 
      RCA (HB3)
     | 
      tT
     | 
      6CS7.pdf (110172 bytes)
   | 
    | 
      6CS7
     | 
      Sylvania
     | 
      tT
     | 
      6CS7.pdf (160016 bytes)
   | 
    | 
      6CS7
     | 
      Tung-Sol
     | 
      tT
     | 
      6CS7.pdf (82040 bytes)
   | 
    | 
      6CS7
     | 
      Sylvania
     | 
      tT
     | 
      6CS7.pdf (628395 bytes)
   | 
    | 
      6CS7
     | 
      RCA (RC30)
     | 
      tT
     | 
      6CS6.pdf (457275 bytes)
   | 
    | 
      6CS8
     | 
      Tung-Sol
     | 
      tp
     | 
      6CS8.pdf (118127 bytes)
   | 
    | 
      6CT3
     | 
      RCA (HB3)
     | 
      R
     | 
      6CT3.pdf (82290 bytes)
   | 
    | 
      6CT7
     | 
      Philips
     | 
      dp
     | 
      6CT7.pdf (128037 bytes)
   | 
    | 
      6CU5
     | 
      RCA (HB3)
     | 
      P
     | 
      6CU5.pdf (185820 bytes)
   | 
    | 
      6CU5
     | 
      General Electric
     | 
      P
     | 
      6CU5.pdf (316552 bytes)
   | 
    | 
      6CU5
     | 
      Tung-Sol
     | 
      P
     | 
      6CU5.pdf (130605 bytes)
   | 
    | 
      6CU5
     | 
      RCA (RC30)
     | 
      P
     | 
      6CS6.pdf (457275 bytes)
   | 
    | 
      6CU6 (= 6BQ6GTB)
     | 
      RCA (HB3)
     | 
      P
     | 
      6BQ6GTB.pdf (152446 bytes)
   | 
    | 
      6CU6
     | 
      General Electric
     | 
      P
     | 
      6CU6.pdf (345900 bytes)
   | 
    | 
      6CU6
     | 
      Tung-Sol
     | 
      P
     | 
      6CU6.pdf (133987 bytes)
   | 
    | 
      6CU6
     | 
      RCA (RC30)
     | 
      P
     | 
      6BN11.pdf (549900 bytes)
   | 
    | 
      6CU7
     | 
      Philips
     | 
      th
     | 
      6CU7.pdf (207905 bytes)
   | 
    | 
      6CU8
     | 
      RCA (HB3)
     | 
      tp
     | 
      6CU8.pdf (314399 bytes)
   | 
    | 
      6CU8
     | 
      Sylvania
     | 
      tp
     | 
      6CU8.pdf (161847 bytes)
   | 
    | 
      6CU8
     | 
      Tung-Sol
     | 
      tp
     | 
      6CU8.pdf (217699 bytes)
   | 
    | 
      6CV7
     | 
      Philips
     | 
      ddt
     | 
      6CV7.pdf (118143 bytes)
   | 
    
      6CW4      
     | 
      RCA (HB3)
     | 
      t
     | 
      6CW4.pdf (258373 bytes)
   | 
    
      6CW4      
     | 
      RCA (RC30)
     | 
      t
     | 
      6CS6.pdf (457275 bytes)
   | 
    | 
      6CW5
     | 
      RCA (HB3)
     | 
      P
     | 
      6CW5.pdf (75437 bytes)
   | 
    | 
      6CW5
     | 
      General Electric
     | 
      P
     | 
      6CW5.pdf (320251 bytes)
   | 
    | 
      6CW5
     | 
      Tung-Sol
     | 
      P
     | 
      6CW5.pdf (308317 bytes)
   | 
    | 
      6CW5
     | 
      RCA (RC30)
     | 
      P
     | 
      6CS6.pdf (457275 bytes)
   | 
    | 
      6CW5
     | 
      Philips
     | 
      P
     | 
      15CW5.pdf (209643 bytes)
   | 
    | 
      6CX7
     | 
      Tung-Sol
     | 
      tt
     | 
      6CX7.pdf (69933 bytes)
   | 
    | 
      6CX7
     | 
      Sylvania
     | 
      tt
     | 
      6CX7.pdf (458351 bytes)
   | 
    | 
      6CX8
     | 
      RCA (HB3)
     | 
      tp
     | 
      6CX8.pdf (93913 bytes)
   | 
    | 
      6CX8
     | 
      General Electric
     | 
      tp
     | 
      6CX8.pdf (840587 bytes)
   | 
    | 
      6CX8
     | 
      Tung-Sol
     | 
      tp
     | 
      6CX8.pdf (384023 bytes)
   | 
    | 
      6CX8
     | 
      RCA (RC30)
     | 
      tp
     | 
      6CS6.pdf (457275 bytes)
   | 
    
      6CY5  
     | 
      RCA (HB3)
     | 
      q
     | 
      6CY5.pdf (207390 bytes)
   | 
    
      6CY5   (= 7717)
     | 
      RCA (HB3)
     | 
      q
     | 
      7717.pdf (81038 bytes)
   | 
    | 
      6CY5
     | 
      General Electric
     | 
      q
     | 
      6CY5.pdf (422613 bytes)
   | 
    | 
      6CY5
     | 
      Tung-Sol
     | 
      q
     | 
      6CY5.pdf (77348 bytes)
   | 
    
      6CY5  
     | 
      RCA (RC30)
     | 
      q
     | 
      6CS6.pdf (457275 bytes)
   | 
    | 
      6CY5/CATV
     | 
      LM Ericsson
     | 
      q
     | 
      6CY5.pdf (1290742 bytes)
   | 
    | 
      6CY7
     | 
      RCA (HB3)
     | 
      tT
     | 
      6CY7.pdf (94546 bytes)
   | 
    
      6CY7  
     | 
      General Electric
     | 
      tT
     | 
      6CY7.pdf (534232 bytes)
   | 
    | 
      6CY7
     | 
      Tung-Sol
     | 
      tT
     | 
      6CY7.pdf (249350 bytes)
   | 
    | 
      6CY7
     | 
      RCA (RC30)
     | 
      tT
     | 
      6CS6.pdf (457275 bytes)
   | 
    
      6CZ5    
     | 
      RCA (HB3)
     | 
      P
     | 
      6CZ5.pdf (218899 bytes)
   | 
    | 
      6CZ5
     | 
      Sylvania
     | 
      P
     | 
      6CZ5.pdf (167569 bytes)
   | 
    | 
      6CZ5
     | 
      Tung-Sol
     | 
      P
     | 
      6CZ5.pdf (95258 bytes)
   | 
    | 
      6CZ5
     | 
      Sylvania
     | 
      P
     | 
      6CZ5.pdf (332132 bytes)
   | 
    
      6CZ5    
     | 
      RCA (RC30)
     | 
      P
     | 
      6CZ5.pdf (67273 bytes)
   | 
    
      6CZ5    
     | 
      RCA (RC30)
     | 
      P
     | 
      6CZ5.pdf (67273 bytes)
   | 
    | 
      6D1
     | 
      Mazda
     | 
      d
     | 
      6D1.pdf (65939 bytes)
   | 
    | 
      6D10
     | 
      Sylvania
     | 
      ttt
     | 
      6D10.pdf (41555 bytes)
   | 
    | 
      6D10
     | 
      Tung-Sol
     | 
      ttt
     | 
      6D10.pdf (73413 bytes)
   | 
    
      6D14P 6 14 
     | 
      Soviet
     | 
      R
     | 
      6D14P.pdf (154836 bytes)
   | 
    | 
      6D2
     | 
      Mazda
     | 
      dd
     | 
      6D2.pdf (60495 bytes)
   | 
    
      6D20P 6 20 
     | 
      Soviet
     | 
      R
     | 
      6D20P.pdf (188377 bytes)
   | 
    | 
      6D21
     | 
      Raytheon
     | 
       
     | 
      6D21.pdf (71434 bytes)
   | 
    | 
      6D22S
     | 
      Svetlana
     | 
      r
     | 
      6D22Sspec.pdf (36354 bytes)
   | 
    | 
      6D4
     | 
      Tung-Sol
     | 
      THY
     | 
      6D4.pdf (220022 bytes)
   | 
    
      6D4    
     | 
      Sylvania
     | 
      THY
     | 
      6D4.pdf (189684 bytes)
   | 
    | 
      6D6
     | 
      RCA
     | 
      p
     | 
      6D6.pdf (34724 bytes)
   | 
    | 
      6D6
     | 
      RCA (HB3)
     | 
      p
     | 
      6D6.pdf (98542 bytes)
   | 
    | 
      6D6
     | 
      Sylvania
     | 
      p
     | 
      6D6.pdf (85375 bytes) (fr)
   | 
    | 
      6D6
     | 
      Tung-Sol
     | 
      p
     | 
      6D6.pdf (226852 bytes)
   | 
    | 
      6D6
     | 
      Brimar
     | 
      p
     | 
      6C5G.pdf (66106 bytes)
   | 
    | 
      6D8G
     | 
      Sylvania
     | 
      H
     | 
      6D8G.pdf (72994 bytes) (fr)
   | 
    | 
      6D8G
     | 
      Tung-Sol
     | 
      H
     | 
      6D8G.pdf (86686 bytes)
   | 
    | 
      6D8G
     | 
      Sylvania
     | 
      H
     | 
      6D8G.pdf (40603 bytes)
   | 
    | 
      6DA4
     | 
      RCA (HB3)
     | 
      R
     | 
      6DA4.pdf (71654 bytes)
   | 
    | 
      6DA4
     | 
      General Electric
     | 
      R
     | 
      6DA4.pdf (174021 bytes)
   | 
    | 
      6DA4
     | 
      Tung-Sol
     | 
      R
     | 
      6DA4.pdf (72045 bytes)
   | 
    | 
      6DA4
     | 
      RCA (RC30)
     | 
      R
     | 
      6DE4.pdf (380118 bytes)
   | 
    | 
      6DA4A
     | 
      Tung-Sol
     | 
      R
     | 
      6DA4A.pdf (74898 bytes)
   | 
    | 
      6DA5
     | 
      Rogers
     | 
      ti
     | 
      6DA5.pdf (84353 bytes)
   | 
    | 
      6DA6 (= EF89)
     | 
      Brimar
     | 
      p
     | 
      EF89.pdf (51236 bytes)
   | 
    | 
      6DA6
     | 
      Philips
     | 
      p
     | 
      6DA6.pdf (298694 bytes)
   | 
    | 
      6DA7
     | 
      Tung-Sol
     | 
      tT
     | 
      6DA7.pdf (71464 bytes)
   | 
    | 
      6DB5
     | 
      RCA (HB3)
     | 
      P
     | 
      6DB5.pdf (91875 bytes)
   | 
    | 
      6DB5
     | 
      Sylvania
     | 
      P
     | 
      6DB5.pdf (83700 bytes)
   | 
    | 
      6DC6
     | 
      RCA (HB3)
     | 
      p
     | 
      6DC6.pdf (223416 bytes)
   | 
    | 
      6DC6
     | 
      Sylvania
     | 
      p
     | 
      6DC6.pdf (105346 bytes)
   | 
    | 
      6DC6
     | 
      Tung-Sol
     | 
      p
     | 
      6DC6.pdf (86371 bytes)
   | 
    | 
      6DC6
     | 
      Sylvania
     | 
      p
     | 
      6DC6.pdf (413205 bytes)
   | 
    | 
      6DC6
     | 
      RCA (RC30)
     | 
      p
     | 
      6DC6.pdf (59825 bytes)
   | 
    | 
      6DC8 (= EBF89)
     | 
      Mazda-Belvu
     | 
      ddp
     | 
      EBF89.pdf (494590 bytes) (fr)
   | 
    | 
      6DC8
     | 
      Rogers
     | 
      ddp
     | 
      6DC8.pdf (249079 bytes)
   | 
    | 
      6DE4
     | 
      General Electric
     | 
      R
     | 
      6DE4.pdf (180322 bytes)
   | 
    | 
      6DE4
     | 
      Tung-Sol
     | 
      R
     | 
      6DE4.pdf (73768 bytes)
   | 
    | 
      6DE4
     | 
      RCA (RC30)
     | 
      R
     | 
      6DE4.pdf (380118 bytes)
   | 
    | 
      6DE6
     | 
      RCA (HB3)
     | 
      p
     | 
      6DE6.pdf (179608 bytes)
   |