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SP20

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ID = 10275
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  Vacuum Pentode   RF/IF-Stage 
Identical to SP20

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Fco)
Was used by Radio/TV-reception etc.
Filament Vf 20 Volts / If 0.18 Ampere / Indirect / Specified current DC = (Series working)
Information source Taschenbuch zum Röhren-Codex 1948/49   


Just Qvigstad
Usage in Models 1= 1932? ; 4= 1933 ; 1= 1934

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):6

Collection of

 
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SP20
 

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