Brand

• (no filter) 

  EUROPE (13) ELECTRO HARMONIX (3) EI (1) GENERAL ELECTRIC (1) MARQUES DIVERSES / VARIOUS BRANDS (22) JJ Electronic (38) MINIWATT DARIO (1) PHILIPS (6) RCA (4) RTC (1) RUSSIE (4) SFR (1) SYLVANIA (1) TUNGSOL (2) USA (24) VALVO (1)

Interests

•  Audiophiles (115)
•  Collectors (102)
•  Guitarists (40)
•  Radio hams (101)

Socket

•  B4 - Europa 4 Pin (1)
•  B7G - Miniatur (7 pins) (4)
•  B9A - Noval (9 pins) (43)
•  B10C - Decal (1)
•  K8A - Octal (8 pins) (25)
•  UX Base (300B type, 4 pins) (1)

Heating parameters

•  4,5V (2)
•  4V (1)
•  5V (1)
•  6.3V (44)
•  6.3V / 12.6V according to series or parallel assembly (23)
•  7.5V (1)
•  12,6V (2)
•  17.5V (1)

Décennie

•  1920 (1)
•  1930 (2)
•  1940 (9)
•  1950 (8)
•  1960 (3)
•  2000 (1)