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A70D

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ID = 10904
       
Country:
Great Britain (UK)
Brand: Ever Ready Co. (GB) Ltd.; London
Tube type:  Vacuum Pentode   Power/Output 
Identical to A70D
Similar Tubes
Normally replaceable-slightly different:
  4PenAAC ; 7A3 ; A70C ; AC2/Pen ; N41 ; PenA4

Base British-7-Pin, old (M7A) (Codex=Ndo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 2 Ampere / Indirect
Information source History of the British Radio Valve to 1940   p. 146
Babani, International Radio Tube Encyclopaedia   p. 42 & 43
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49

a70d_so.png A70D: telefunken werkstattbuch
Anonymous 10 Collector


Just Qvigstad
Usage in Models 5= 1936 ; 1= 1937? ; 12= 1937 ; 2= 1938? ; 11= 1938

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):31
 

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