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P2_Cossor

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ID = 19387
       
Country:
Great Britain (UK)
Brand: Cossor, A.C.; London
Developer: Cossor, A.C.; London 
Tube type:  Triode, vacuum   RF/IF-Stage 
Identical to P2_Cossor
Similar Tubes
Other characteristic (electr. data):
  P1_Cossor
Other base:
  P2_Cossor-UV
First Source (s)
1922 : British Radio Valves - The Vintage Years: 1904-1925 p.29,30
1922 : Saga of the Vacuum Tube, Tyne p.373
Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 3.5 Volts / If 0.7 Ampere / Direct / Battery =
Description

Vademecum is in error: not 0.085 A, and not equivalent to RE074!
Red top.

 
Tube prices 1 Tube prices (visible for members only)
Information source Saga of the Vacuum Tube, Tyne   1925 Brown Brothers Catalog 217
b4_base_pins~~34.png P2_Cossor: Fin Stewart
Fin Stewart

Just Qvigstad 		p2_cossor_spec.png
P2_Cossor: Banneitz, TB der drahtl. Teleph. 1927
Anonymous 15 Collector

Collection of

Hermann Scharfetter (A)
Jose Luis Villabona Horreo (E)
Robert Gillespie (USA)
Rudolf Osterkamp (D)
 
screenshot_20211102_063510_gallery.jpg

P2_Cossor
 
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