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VT74_GPO

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ID = 64946
       
Country:
Great Britain (UK)
Brand: Cossor, A.C.; London
Developer: Cossor, A.C.; London 
Tube type:  Triode, vacuum   Audio Frequency 
  Ca. 1925 up to 1945 very rare. ***
Identical to VT74_GPO
Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Telephony
Filament Vf 2 Volts / If 0.1 Ampere / Direct / Specified voltage AC/DC
Information source -- Collector info (Sammler)   
b4_1~~39.png VT74_GPO: Fin Stewart
Fin Stewart

Just Qvigstad

Collection of

Collection of a member from D
 
roehre_vt74_tekade_bild_2.jpg

 
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