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4001A_STC

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ID = 50123
       
Country:
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   RF/IF-Stage 
  <1925 very rare. ***
Identical to 4001A_STC = H125A
Similar Tubes
Normally replaceable-slightly different:
  4215A ; G125A

Base Peanut (WECO 1919/1920)
Was used by Radio/TV-reception etc.
Filament Vf 1 Volts / If 0.25 Ampere / Direct / Battery =
Description

This tube is designed fot high output impedance of 45.000 Ohms and has an amplification factor of 11.4

 
Dimensions (WHD)
incl. pins / tip
x 54 x 16 mm / x 2.13 x 0.63 inch
Weight 10 g / 0.35 oz
Information source - - Manufacturers Literature   

215a_base.gif 4001A_STC: Fin Stewart
Fin Stewart


Just Qvigstad
40011.png
4001A_STC: own collection
Peter den Boer

More ...
 
h125a.4~~1.jpg

 

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