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Dex306

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ID = 30846
       
Country:
Great Britain (UK)
Brand: Economic Electric; London
Developer: Economic Electric; London 
Tube type:  Triode, vacuum   Audio Frequency 
Identical to Dex306 = Dex376
First year 1925 History of the British Radio Valve to 1940 page 157
First Source (s)
1925 : British Radio Valves - The Vintage Years: 1904-1925 page 50

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 3 Volts / If 0.06 Ampere / Direct / Battery =
Description

In Tyne obviously erroneous name: Dex376, which is against the code used (first digit = voltage; second and third digit = current as right of a virtual decimal point. i.e. 306 = 3 volts, 0.06 amp; 440 = 4 volts, 0.40 amp).

 
Information source Saga of the Vacuum Tube, Tyne   p. 388

b4_base_pins~~201.png Dex306: Fin Stewart
Fin Stewart


Just Qvigstad
 

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