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Description
Believed to be an unfinished test copy of a Heintz & Kaufman gammatron type 14 (HK-14) triode for radar application, likely created by one of the de Forest companies during the 1940s when many tube manufacturers were called on to boost production of other manufacturers' tubes for military contracts.
Type
image
Identifier
52D4CBCD-E955-4305-8907-126745548668 2003-1-769
Subject
Heintz and Kaufman Gammatrons Vacuum-tubes (LCSH) Nineteen forties (LCSH) Nineteen fifties (LCSH) Nineteen thirties (LCSH) Radar (LCSH) De Forest, Lee
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