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IRF40

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ID = 85752
       
Country:
Great Britain (UK)
Brand: Brivaron - British Valve & Electrical Accessories; London
Tube type:  Full-Wave Vacuum Rectifier   Power-supply 
Identical to IRF40

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Direct
Information source British Radio Valves - The Classic Years: 1926-1946   p. 246


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