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LF_green

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ID = 28613
       
Country:
Great Britain (UK)
Brand: Mullard Radio Valve Co. Ltd.;
Tube type:  Triode, vacuum   Audio Frequency 
Identical to LF_green
Similar Tubes
Heater different:
  LF_double_green_D3
First year 1924 Saga of the Vacuum Tube, Tyne page 378
First Source (s)
1924 : British Radio Valves - The Vintage Years: 1904-1925 p. 118

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.6 Ampere / Direct / Battery =

b4_base_pins~~83.png LF_green: Fin Stewart
Fin Stewart


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