Brand

•  BOMAC
•  CHATHAM
•  DARIO
•  EEV
•  ELECTRON TUBE
•  ELESTA
•  GENERAL ELECTRIC
•  HALTRON
•  MARQUES DIVERSES / VARIOUS BRANDS
•  MULLARD
•  NORTHERN ELECTRIC
•  PHILIPS
•  RCA
•  RTC
•  STA
•  STANDARD BRAND
•  STC
•  WESTINGHOUSE
•  WF

Interests

•  Audiophiles
•  Collectors
•  Radio hams

Socket

•  B4 - Europa 4 Pin
•  B5 - Europe (5 pins)
•  B7G - Miniatur (7 pins)
•  B9A - Noval (9 pins)
•  Jumbo (845 type, 4 pins)
•  K8A - Octal (8 pins)
•  P8A - Transcontinental (8 pins)
•  U7G (813 type, 7 pins)
•  UV - Base (4 Pins+Bayonet, USA 1914 WE)
•  UX Base (300B type, 4 pins)
•  UY-Base (807 type, 5 pins)

Heating parameters

•  2.5V
•  4V
•  5V
•  6.3V

Décennie

•  1920
•  1930
•  1940
•  1950
•  1960

Connection on the top

•  With
•  Without