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W2_Cossor

Information - Help 
ID = 30727
       
Country:
Great Britain (UK)
Brand: Cossor, A.C.; London
Developer: Cossor, A.C.; London 
Tube type:  Triode, vacuum   RF/IF-Stage 
Identical to W2_Cossor
Similar Tubes
Heater different:
  WR2
First Source (s)
1925 : British Radio Valves - The Vintage Years: 1904-1925 p.49
1925 : Saga of the Vacuum Tube, Tyne p.375
Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 1.8 Volts / If 0.3 Ampere / Direct / Battery =
Description

"Wuncell" type.

 
Information source
b4_base_pins~~177.png W2_Cossor: Fin Stewart
Fin Stewart

Just Qvigstad 		w2_cossor_spec.png
W2_Cossor: Banneitz, TB der drahtl. Teleph. 1927
Anonymous 15 Collector
More ...

Collection of

Geri Meier (CH)
 
cossor_w2_nvm.jpg

W2_Cossor
 
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