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ID = 57478
Great Britain (UK)
Brand: Mazda = Valve (Tube) brand GB (see also France)
Developer: Ediswan, Siemens Edison Swan Electric Co.; London 
Tube type:  Half-Wave Vacuum Rectifier   Power-supply 
Identical to ESU206

Base Edison giant, E40 = 40 mm-Goliat Top contact screw type.
Was used by Transmittertube (Radio)
Filament Vf 11.5 Volts / If 5 Ampere / Direct / Specified voltage AC/DC
Dimensions (WHD)
incl. pins / tip
x 260 x 108 mm / x 10.24 x 4.25 inch
Weight 250 g / 8.82 oz
Information source - - Manufacturers Literature   Data sheet dated October 1948

Just Qvigstad
ESU206: own collection
Peter den Boer


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