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CV1056

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ID = 9904
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Vacuum Pentode   RF/IF-Stage 
  Ca. 1925 up to 1945 rare.
Identical to CV1056 = VT201_GPO = 10E/11402 = 1260 = ZA13352 = 5A/157D = EF39 = OM5 = VR56 = NR49
Similar Tubes
Other class quality (otherwise equal):
  CV358
Base Octal (Int.Octal, IO) K8A, USA 1935 (Codex=Uf) Top contact with a cap.
Was used by Military and/or Government
Filament Vf 6.3 Volts / If 0.2 Ampere / Indirect
Information source Taschenbuch zum Röhren-Codex 1948/49   
Babani, International Radio Tube Encyclopaedia   Pages 70-71
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
cv1056_so.png CV1056: rtt
Anonymous 10 Collector

Just Qvigstad
 
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