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PD220A

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ID = 14607
       
Country:
Great Britain (UK)
Brand: Common type Great Britain tube/semicond.
Tube type:  Double Triode   Power/Output 
Identical to PD220A
Similar Tubes
Normally replaceable-slightly different:
  7414 ; PM2BA

Base British-7-Pin, old (M7A) (Codex=No)
Was used by Radio/TV-reception etc.
Filament Vf 2 Volts / If 0.2 Ampere / Direct
Information source History of the British Radio Valve to 1940   p. 148 & 167
Babani, International Radio Tube Encyclopaedia   p. 126 & 127
Universal Vade-Mecum, Electron Valves and Semiconductor Devices
Taschenbuch zum Röhren-Codex 1948/49

nr35_3.png PD220A: Manufacturer's Literature
Emilio Ciardiello


Just Qvigstad
Usage in Models 1= 1934

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):1
 

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