The Father of FM Broadcasting is Heard Over WNYC 63 Years Ago Today! | NYPR Archives & Preservation | WNYC
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1700 Radio Armstrong; where?, build 1955 ??, 7 pictures, 1 schematics | Radiomuseum
Louis Armstrong | Biography, Facts, What a Wonderful World, Nickname, & Songs | Britannica
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Yonkers Set To Unveil Edwin Armstrong Tribute | Yonkers Daily Voice | Your Local News for Yonkers, New York
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Edwin Howard Armstrong: Developer of Practical Radio Broadcasting
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Edwin Armstrong: Pioneer of the Airwaves | Columbia Magazine
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Edwin Armstrong and Frequency Modulation | SciHi Blog
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First Portable Superheterodyne Radio Receiver, Made by Edwin Howard Armstrong, 1923 - Armstrong, Edwin H. (Edwin Howard), 1890-1954 — Google Arts & Culture
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Edwin Howard Armstrong, the “Radio Boy,” and the Creation of FM - News
