Manufacturer Details - Ediswan
Ediswan, the trade name of the Edison and Swan United Electric Light Company Limited, made this valve for Marconi's Wireless Telegraph Co. Ltd. Joseph Swan, a Briton, and Thomas Edison, the famous American inventor jointly founded the company, as a result of the major court battle they fought over who was the original inventor of the electric light bulb. The company produced all the Marconi valves up to 1919 and manufactured them at their factory in Ponders End, North London.
Some Ediswan valves were marked 'Royal Ediswan' up to 1923.
Other narratives:
Related Objects:
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- Inventory No. 74533, "Ediswan Pipped Bulb with Bayonet Fitting for Incandescent Lamp" [1964-281], Ediswan
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- Inventory No. 33191, "Marconi Radio Valve Type Q, by Ediswan, London, c. 1916" [2004-9/189], Ediswan
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- Inventory No. 35122, "Round Radio Valve Type CA, by Ediswan, London, c. 1915" [2004-9/181], Ediswan
- Inventory No. 77499, "12 Volt Fleming Valve, by Royal Ediswan, London, c. 1905" [2004-9/182], Royal Ediswan
- Inventory No. 41677, "Fleming Valve, by Ediswan, London, c. 1905" [2004-9/184], Ediswan
- Inventory No. 21803, "Fleming Valve, by Ediswan, London, c. 1905" [2004-9/199], Ediswan
- Inventory No. 22414, "Ediswan Radio Valve Type ATP4 With Carton, by Ediswan, London, Mid 20th Century" [2004-9/256], Siemens Edison Swan Ltd
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- Inventory No. 70145, "Marconi Radio Valve Type Q, by Ediswan, London, c.1919" [2004-9/315], Ediswan
- Inventory No. 27357, "Marconi Radio Valve Type Q, by Ediswan, London, c. 1918" [2004-9/316], Ediswan
- Inventory No. 81565, "Marconi Radio Valve Type Q, by Ediswan, London, c. 1918" [2004-9/320], Ediswan
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- Inventory No. 74162, "Marconi Radio Valve Type Q, by Ediswan, London, c. 1918" [2004-9/330], Ediswan
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- Inventory No. 24865, "Experimental Round Radio Valve Type CA, by Ediswan, London, c. 1915" [2004-9/298], Ediswan
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