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ID = 56441
Great Britain (UK)
Brand: Ediswan, Siemens Edison Swan Electric Co.; London
Developer: Fleming - valves; GB 
Tube type:  Signal Diode - one single system   Detector 
  <1925 very rare. ***
Identical to 133R_Fleming

Base Swan-Bajonett B22=22 mm Other combinations of connections.
Was used by Radio/TV-reception etc.
Filament Vf 12 Volts / If 1.6 Ampere / Direct / Battery =

Branded Fleming Oscillation Valve and Royal Ediswan. Tube has a carbon filament and a serial number on the base.

Dimensions (WHD)
incl. pins / tip
x 100 x 52 mm / x 3.94 x 2.05 inch
Weight 9 g / 0.32 oz
Information source British Radio Valves - The Vintage Years, Thrower   Pages 8 - 12
70 Years of Radiotubes and V.   Pages 3 -4
Saga of the Vacuum Tube, Tyne
133R_Fleming: Fin Stewart collection
Fin Stewart


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