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220VSG

Information - Help 
ID = 12429
       
Country:
Great Britain (UK)
Brand: Cossor, A.C.; London
Tube type:  Screen-grid Tetrode   RF/IF-Stage   Controlling (mu) 
Identical to 220VSG
Similar Tubes
Normally replaceable-slightly different:
  176_Tetrode ; PM12V ; S215VM ; SG2V ; VS2
First Source (s)
30.Dec.1931 : Wireless World (The), London (WW, 79) p732
1932 : History of the British Radio Valve to 1940 p.193
Successor Tubes CV1028  

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Er) Top contact screw type.
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.2 Ampere / Direct / Battery =
Information source Taschenbuch zum Röhren-Codex 1948/49   
 
220vsg_111111.jpeg
220VSG: Photo of tube from my collection - TS
Tomasz Szczesniak

 
220vsg.png
220VSG: Manufacturer's Literature
Emilio Ciardiello

 
220vsg_data.png
220VSG: COSSOR VALVE MANUAL 1935-6
Jose Casas-Avalos


from Just Qvigstad

Usage in Models 1= 1931 ; 2= 1932

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3


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