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P4_Cossor

Information - Help 
ID = 30821
       
Country:
Great Britain (UK)
Brand: Cossor, A.C.; London
Developer: Cossor, A.C.; London 
Tube type:  Triode, vacuum   RF/IF-Stage 
Identical to P4_Cossor
Similar Tubes
Other characteristic (electr. data):
  P3_Cossor
First Source (s)
1924 : Saga of the Vacuum Tube, Tyne p.375
1924 : British Radio Valves - The Vintage Years, Thrower p.48

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 1.2 Volts / If 0.22 Ampere
Description

Blue top.

 
 
p4_cossor_so.png
P4_Cossor: rtt
Anonymous 10 Collector

 

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