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Fleming Oscillation Valve (Item: RDW-30)

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$295.00
SKU:
RDW-30
Weight:
1.00 LBS
Shipping:
Calculated at checkout

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 Product Description

A quality reproduction of a Fleming Oscillation Valve used as a receiving detector in early wireless telegraphy. It was invented by John Ambrose Fleming and patented in the United States on November 7, 1905. Reproduction was made by the Phil Weingarten (see brief biography) .  Filament tests good. 

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