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A819

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ID = 64362
       
Country:
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Developer: Marconi-Osram - (Valves/Tubes); GB 
Tube type:  Vacuum Pentode   RF/IF-Stage 
  Ca. 1925 up to 1945 very rare. ***
Identical to A819
Similar Tubes
Normally replaceable-slightly different:
  10E/153 ; CV1698 ; KTZ41 ; VT148_GPO

Base British-7-Pin, old (M7A) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.15 Ampere / Indirect / Specified voltage AC/DC
Description

Special "A" series tube made to specifications supplied by British Government

 
Information source - - Manufacturers Literature   

gec_ktz41~~1.png A819: Fin Stewart
Fin Stewart


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