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DE2_Ediswan

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ID = 28494
       
Country:
Great Britain (UK)
Brand: Ediswan, Siemens Edison Swan Electric Co.; London
Tube type:  Triode, vacuum   Audio Frequency 
Identical to DE2_Ediswan
First year 1923 Saga of the Vacuum Tube, Tyne Seite 373

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 1.8 Volts / If 0.24 Ampere / Direct / Battery =
Information source British Radio Valves - The Vintage Years: 1904-1925   

b4_base_pins~~923.png DE2_Ediswan: Fin Stewart
Fin Stewart


Just Qvigstad
 

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