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ID = 57579
Great Britain (UK)
Brand: Ediswan, Siemens Edison Swan Electric Co.; London
Tube type:  Current Regulator, Iron in Hydrogen   Power-supply 
Identical to BU30/110

Base Edison, size not known
Filament Direct
Dimensions (WHD)
incl. pins / tip
x 240 x 46 mm / x 9.45 x 1.81 inch
Information source - - Manufacturers Literature   Data sheet December 1948

BU30/110: own collection
Peter den Boer


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