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AC/SGV

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ID = 9766
       
Country:
Great Britain (UK)
Brand: Lissen Ltd.; London and Richmond, Surrey
Tube type:  Screen-grid Tetrode   RF/IF-Stage   Controlling (mu) 
Identical to AC/SGV
Similar Tubes
Normally replaceable-slightly different:
  MM4V
First Source (s)
22.Nov.1935 : Wireless World (The), London (WW, 79)
Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 (Codex=Fco) Top contact screw type.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 1 Ampere / Indirect / Specified voltage AC/DC
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   1930
History of the British Radio Valve to 1940
b5~~25.png AC/SGV: Fin Stewart
Fin Stewart

Just Qvigstad 		ac_sgv.png
AC/SGV: own collection
Peter den Boer
Usage in Models 1= 1933 ; 2= 1934
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3
 
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