Edwin Howard Armstrong, bald, blue-eyed, well-heeled professor of electrical engineering at Columbia University, has made a tidy fortune for himself by inventing the super-regenerative and ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This is the main section of Edwin ...

Typed letters, 1 signed in black ink with annotations in pencil, and memorandum, all on unlined paper. With envelope for letter to the editor of Fortune Magazine, postmarked 10 July 1951. Edwin Howard ...

On June 11, the 70th anniversary of the first FM radio broadcast was celebrated at the site of that broadcast, in Alpine, NJ. The facility, which still stands today, was built by the inventor of FM ...

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