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W3_Cossor

Information - Help 
ID = 28914
       
Country:
Great Britain (UK)
Brand: Cossor, A.C.; London
Tube type:  Triode, vacuum   Power/Output 
  Ca. 1925 up to 1945 rare.
Identical to W3_Cossor
First year Jul.1925 Saga of the Vacuumtube, Tyne page 375
First Source (s)
1925 : British Radio Valves - The Vintage Years, Thrower

Base Europe 4-Pin (A, 4A, B4, since 1914)
Filament Vf 1.8 Volts / If 0.45 Ampere / Direct / Battery =
Description "Wuncell" type. Also with Am. UV base. 
Dimensions (WHD)
incl. pins / tip
3 x 8 x 3 mm / 0.12 x 0.31 x 0.12 inch
Literature
 
cossor_w3_bild1.jpg
W3_Cossor: R.O.
Rudolf Osterkamp

 
cossor_w3data.png
W3_Cossor: Wireless World 1925
Roy Johnson



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