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PV1_Ediswan

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ID = 30818
       
Country:
Great Britain (UK)
Brand: Ediswan, Siemens Edison Swan Electric Co.; London
Developer: Ediswan, Siemens Edison Swan Electric Co.; London 
Tube type:  Triode, vacuum   Power/Output 
  <1925 rare.
Identical to PV1_Ediswan
First Source (s)
1924 : British Radio Valves - The Vintage Years: 1904-1925 p.30,31
1924 : History of the British Radio Valve to 1940 p. 155

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 6 Volts / If 1.5 Ampere / Direct / Battery =
Description

Bright emitter.

 


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