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Audio and Video Talk
Valves / Vacuum Tubes
Pioneer SM-83 & tube rolling
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<blockquote data-quote="fredeb" data-source="post: 781396" data-attributes="member: 13623"><p>Some interesting information from Wikipedia : <a href="https://en.wikipedia.org/wiki/Edison_and_Swan_Electric_Light_Company" target="_blank">https://en.wikipedia.org/wiki/Edison_and_Swan_Electric_Light_Company</a></p><p></p><p>" The company had offices at 155 Charing Cross Road, London, and factories in Brimsdown, Ponders End and Sunderland. In 1928, the company was acquired by Associated Electrical Industries. In 1956, a new cathode ray tube plant was opened in Sunderland. The company was renamed Siemens Ediswan following the takeover of Siemens Brothers by AEI in 1957. In 1964, AEI merged its lamp and radio valve manufacturing interests with those of Thorn Electrical Industries to form British Lighting Industries Ltd. "</p><p></p><p>.... and ....</p><p></p><p>' <strong>Ediswan Valves</strong></p><p></p><p>Edison Swan (or later Siemens Edison Swan) produced a wide range of vacuum tubes and cathode ray tubes under the names "Ediswan" or "Mazda" and the 1964 Mazda Valve Data Book claimed: "Professor Sir. Ambrose Fleming... was Technical Consultant to the Edison Swan Company at the time. It was this close co-operation between University and Factory which resulted in the first radio valve in the world." '</p></blockquote><p></p>
[QUOTE="fredeb, post: 781396, member: 13623"] Some interesting information from Wikipedia : [url=https://en.wikipedia.org/wiki/Edison_and_Swan_Electric_Light_Company]https://en.wikipedia.org/wiki/Edison_and_Swan_Electric_Light_Company[/url] " The company had offices at 155 Charing Cross Road, London, and factories in Brimsdown, Ponders End and Sunderland. In 1928, the company was acquired by Associated Electrical Industries. In 1956, a new cathode ray tube plant was opened in Sunderland. The company was renamed Siemens Ediswan following the takeover of Siemens Brothers by AEI in 1957. In 1964, AEI merged its lamp and radio valve manufacturing interests with those of Thorn Electrical Industries to form British Lighting Industries Ltd. " .... and .... ' [b]Ediswan Valves[/b] Edison Swan (or later Siemens Edison Swan) produced a wide range of vacuum tubes and cathode ray tubes under the names "Ediswan" or "Mazda" and the 1964 Mazda Valve Data Book claimed: "Professor Sir. Ambrose Fleming... was Technical Consultant to the Edison Swan Company at the time. It was this close co-operation between University and Factory which resulted in the first radio valve in the world." ' [/QUOTE]
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Audio and Video Talk
Valves / Vacuum Tubes
Pioneer SM-83 & tube rolling
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