Brand

• (no filter) 

  EUROPE (19) CEE (5) CETRON (1) DIVERSES MARQUES (3) GENERAL ELECTRIC (1) INTERNATIONAL (33) JJ Electronic (4) PHILIPS (2) REPUBLIQUE POPULAIRE CHINE (1) TELEFUNKEN (1) THOMSON (1) USA (36)

Interests

•  Audiophiles (84)
•  Collectors (95)
•  Guitarists (5)
•  Radio hams (92)

Socket

•  B7G - Miniatur (7 pins) (3)
•  B8A - Rimlock (8 Pins) (1)
•  B9A - Noval (9 pins) (6)
•  K8A - Octal (8 pins) (7)
•  P8A - Transcontinental (8 pins) (2)
•  UX Base (300B type, 4 pins) (2)

Heating parameters

•  A - 4V (1)
•  D - 1.2 to 1.4V (1)
•  E - 6.3V (6)
•  G - 5V (6)
•  H - 35V - 150mA (1)
•  I - 50V - 150mA (1)
•  S - 31V (1)
•  T - 19V (1)

Décennie

•  1920 (1)
•  1930 (1)
•  1940 (2)
•  1950 (2)