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R42_Ferranti

Information - Help 
ID = 72513
       
Country:
Great Britain (UK)
Brand: Ferranti, GB
Tube type:  Full-Wave Vacuum Rectifier   Power-supply 
Identical to R42_Ferranti = R2

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 2.5 Ampere / Half indirect
Description

350-0-350V rms; 120mA max rectifiedcurrent

 
Information source Babani, International Radio Tube Encyclopaedia   
History of the British Radio Valve to 1940   p. 175


Just Qvigstad

Collection of

 
img_20200223_201919.jpg

R42_Ferranti
 

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