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OM9

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ID = 11398
       
Country:
Great Britain (UK)
Brand: Cossor, A.C.; London
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Vacuum Pentode   Power/Output 
  Ca. 1925 up to 1945 very rare. ***
Identical to OM9 = CV1052 = VT52 = EL32 = ZA11244 = VT180_GPO
First Source (s)
1940 : History of the British Radio Valve to 1940 p.189

Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Ufo) Top contact with a cap.
Was used by Radio/TV-reception etc.
Filament Vf 6.3 Volts / If 0.2 Ampere / Indirect / Specified voltage AND current AC/DC
Information source Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   
Babani, International Radio Tube Encyclopaedia
Universal Vade-Mecum, Electron Valves and Semiconductor Devices

375_3.png OM9: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad

Collection of

 
gb_cossor_om9.jpg

 

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