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E. H. ArmstrongRadio's premier inventor, Edwin H. Armstrong was responsible for the Regenerative Circuit (1912), the Superheterodyne Circuit (1918), the Superregenerative Circuit (1922) and the complete FM System (1933). |
History : Operating Aids/History
E. H. Armstrong is listed on dxzone.com under the category Radio History since Thursday Feb 8 2007 and received 203 hits.
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