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Dex412

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ID = 28506
       
Country:
Great Britain (UK)
Brand: Economic Electric; London
Developer: Economic Electric; London 
Tube type:  Triode, vacuum   Audio Frequency 
Identical to Dex412
First year 1926 Saga of the Vacuum Tube, Tyne Seite 388
First Source (s)
1925 : British Radio Valves - The Vintage Years: 1904-1925 p.50
1925 : History of the British Radio Valve to 1940 p. 157

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.12 Ampere / Direct / Battery =
Description

General name "Dextraudion".

 
Text in other languages (may differ)

b4_base_pins~~205.png Dex412: Fin Stewart
Fin Stewart


Just Qvigstad
 

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