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VT140_GPO

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ID = 64209
       
Country:
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Developer: Marconi-Osram - (Valves/Tubes); GB 
Tube type:  Triode, vacuum   Audio Frequency 
  Ca. 1925 up to 1945 very rare. ***
Identical to VT140_GPO = NR42 = LP2

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Telephony
Filament Vf 2 Volts / If 0.2 Ampere / Direct / Specified voltage AND current AC/DC
Information source -- Collector info (Sammler)   

b4_1~~28.png VT140_GPO: Fin Stewart
Fin Stewart


Just Qvigstad
 

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