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C27D

Information - Help 
ID = 29730
       
Country:
Great Britain (UK)
Brand: Ever Ready Co. (GB) Ltd.; London
Tube type:  Double Diode-Pentode   Power/Output 
Identical to C27D
Similar Tubes
Normally replaceable-slightly different:
  DP4480

Base British-7-Pin, old (M7A) Top contact with a cap.
Filament Vf 44 Volts / If 0.2 Ampere / Indirect
Information source Universal Vade-Mecum, Electron Valves and Semiconductor Devices   group 305
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