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Personal Portable Receivers in the US 1941

From 1941 this is an article on the latest design of Personal Portable Receivers in the United States in 1941.
It introduces such valves as the IR5,IT4,IS5,IS4 and the 45Z3 rectifier. Manufacturers sets shown include General Electric,Crosley,RCA Victor,Admiral and Zenith.Plus schematic circuits for portables are shown.

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Last updated 18.12.2004

2003-2004 © Maurice Woodhead