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RAYTHEON B-H TYPE B VALVE, 1930's

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RAYTHEON B-H TYPE B VALVE, 1930's

Raytheon BH type B Cold Cathode Rectifier.
This valve has no heater.

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A0610



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