Please click your language flag. Bitte Sprachflagge klicken.


Information - Help 
ID = 69662
Great Britain (UK)
Brand: Standard Telephones and Cables Ltd. (STC); London, Foots Cray
Developer: Western Electric Company Inc.; New York (NY) 
Tube type:  Triode, vacuum   Audio Frequency 
  <1925 very rare. ***
Identical to 4001_AB
Similar Tubes
Other base and data slightly different:
  215A ; 4215A

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 1 Volts / If 0.25 Ampere / Direct / Battery =

This tube is a 4001 A tube but with a European B4 base. The tube itself was designed by the Western Electric Company, with the "peanut base.

Dimensions (WHD)
incl. pins / tip
x 95 x 28 mm / x 3.74 x 1.10 inch
Information source - - Manufacturers Literature   1937 data sheet

Just Qvigstad

You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. You will find thousands of tubes or valves with interesting links. You even can look up radio models with a certain tube line up. [rmxtube-en]