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VT204_GPO

Information - Help 
ID = 64742
       
Country:
Great Britain (UK)
Brand: Marconi-Osram - (Valves/Tubes); GB
Tube type:  Double Triode   RF/IF-Stage 
  Ca. 1925 up to 1945 very rare. ***
Identical to VT204_GPO = DET19 = CV18
Similar Tubes
Normally replaceable-slightly different:
  2C34 ; 4074A ; RK34 ; VT61

Base 7-Pin-Base U7B = medium, old, USA 2 Top contacts.
Was used by Telephony
Filament Vf 6.3 Volts / If 0.8 Ampere / Indirect / Specified voltage AC/DC
Information source -- Collector info (Sammler)   
-- Original-techn. papers.   
- - Manufacturers Literature
 
det19~~1.png
VT204_GPO: Fin Stewart
Fin Stewart

 

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