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VT37A_GPO

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ID = 63347
       
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 rare.
Identical to VT37A_GPO

Was used by Telephony
Filament Direct / Specified voltage AND current AC/DC
Information source -- Collector info (Sammler)   

 

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