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40PPA

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ID = 10736
       
Country:
Great Britain (UK)
Brand: Cossor, A.C.; London
Tube type:  Vacuum Pentode   Power/Output 
Identical to 40PPA
Similar Tubes
Heater different:
  13PPA
First Source (s)
1934 : History of the British Radio Valve to 1940 p.189
Base British-7-Pin, old (M7A) (Codex=Ndo)
Was used by Radio/TV-reception etc.
Filament Vf 40 Volts / If 0.2 Ampere / Indirect / Specified current AC/DC ~ = (Series working)
Information source History of the British Radio Valve to 1940   p. 145 & 189
Babani, International Radio Tube Encyclopaedia   p. 22 & 23
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
161.png 40PPA: Telefunken Werkstattbuch
Wolfgang Bauer

Just Qvigstad 		40ppa_data.png
40PPA: COSSOR VALVE MANUAL 1935-6
Jose Casas-Avalos
Usage in Models 2= 1934 ; 1= 1935
Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3
 
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