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S625 MOV VALVE, 1927

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S625 MOV VALVE, 1927

Developed by H.J.Round (Captain) for the Marconi Osram Valve Company.
The S625 was one of the worlds first fully screened RF amplifier valve.

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2007 The Museum of Technology, The Great War and WWII
Company registered in England No. 7452160, Registered Charity No. 1140352, Accredited Museum No. 2221