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VT52_GPO

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ID = 63375
       
Country:
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Developer: Marconi-Osram - (Valves/Tubes); GB 
Tube type:  Transmitting Triode, air cooled   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to VT52_GPO = CV1567 = AT35 = DET25 = CV1025

Base L4 British large 4 pin (1922, LG4)
Was used by Telephony
Filament Vf 6 Volts / If 2.2 Ampere / Direct / Specified voltage AND current AC/DC
Information source -- Collector info (Sammler)   

l4_based_triode~~15.png VT52_GPO: Fin Stewart
Fin Stewart


Just Qvigstad
 

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