Antique radios, Old Time Radios
DR2_Ediswan
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Country:
Great Britain (UK)
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| Identical to |
DR2_Ediswan
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| First year |
1924
History of the British Radio Valve to 1940 p. 158
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| First Source
(s) |
1926 : -- Collector info (Sammler) "The Ediswan Range of Valves"
1925 : Saga of the Vacuum Tube, Tyne p.373
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