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AC/SL

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ID = 12523
       
Country:
Great Britain (UK)
Brand: Hivac Ltd.; Harrow-on-the-Hill
Developer: Hivac Ltd.; Harrow-on-the-Hill 
Tube type:  Screen-grid Tetrode   RF/IF-Stage 
Identical to AC/SL

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Fc) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Direct / Specified voltage AC/DC
Information source Wireless World (The), London (WW, 79)   November 22, 1935
History of the British Radio Valve to 1940   p. 184
Taschenbuch zum Röhren-Codex 1948/49
History of the British Radio Valve to 1940


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