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FW1

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ID = 7800
       
Country:
Great Britain (UK)
Brand: Dario - Impex Electrical Ltd. (see also Dario France); London
Tube type:  Full-Wave Vacuum Rectifier   Power-supply 
Identical to FW1

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Half indirect / Specified voltage AC/DC
Description

2x 250 V, 60 mA

 
Information source British Radio Valves - The Classic Years: 1926-1946   Supplement, p. 143
Universal Vade-Mecum, Electron Valves and Semiconductor Devices   Section 22, p. 20
Taschenbuch zum Röhren-Codex 1948/49
Babani, International Radio Tube Encyclopaedia

s_377_g_3.gif FW1: W.Sprick: Austausch-Röhren-Lexikon 1947
Günther Stabe † 19.8.20


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