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Marconi Radio Valve Type FE2, by Marconi Company, London, c. 1922

Inventory Number: 92775

Number of documents: 2


Document Type: Miscellaneous Note

Document Heading: Technical Details - Marconi Radio Valve Type FE2

Text: 

Almost identical in appearance to the FE1 valve (first produced in 1920), but with a few noticeable differences, including a wider spacing between the turns of the helix in the inner grid and with frosted bulb at glass end nearest the anode. Despite suggestions to the contrary, the FE1 and FE2 were identical in size. Both were bright emitter type radio valves.


Document Type: Miscellaneous Note

Document Heading: Manufacturer Details

Text: 

Marconi-Osram Valve Co. Ltd. was founded in 1919, and took over the manufacture of Marconi valves from Ediswan, the trade name of the Edison and Swan United Electric Light Company Limited. The M-OV, as it was later known, was a joint Marconi-GEC valve-manufacturing company. It produced all of its valves at the Osram Lamp Works at Hammersmith, London.


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