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ST42

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ID = 28794
       
Country:
Great Britain (UK)
Brand: ST Valve, S.T. Limited, John Scott-Taggart; London
Tube type:  Triode, vacuum   Power/Output 
Identical to ST42
Similar Tubes
Heater different:
  ST62
First year Feb.1927 Saga of the Vacuum Tube, Tyne page 395
First Source (s)
03.Nov.1926 : Wireless World (The), London (WW, 79) "On sale" advt p22-23
Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Filament Vf 4 Volts / If 0.1 Ampere / Direct / Battery =
Description

Hersteller: S.T. Co Ltd, Great Britain

 
b4_base_pins~~362.png ST42: Fin Stewart
Fin Stewart

Just Qvigstad

Collection of

Tomasz Szczesniak (PL)
 
st42_1.jpeg

 
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