Edwin H. Armstrong House

The Edwin H. Armstrong House, in Yonkers in Westchester County, New York, is unusual for having achieved listing on the National Register of Historic Places and even designation as a National Historic Landmark, only to be demolished. Its subsequent removal from National Historic Landmark status is the only such occurrence for a New York State site.

It was the home of Edwin H. Armstrong, inventor of two circuits that are the basis of modern telecommunication systems, and also inventor of wide-band frequency modulation (FM) radio.cite web|last=Sheire|first=James|title=National Register of Historic Places Inventory/Nomination: Edwin H. Armstrong House |url=http://www.oprhp.state.ny.us/hpimaging/hp_view.asp?GroupView=10774 |date=July, 1975 |accessdate=2008-01-25 (includes 1 photo)]

The home, a Queen Anne house, was located at 1032 Warburton Avenue in Yonkers.

It was designated a National Historic Landmark on 7 Jan 1976.cite web|url=http://www.nps.gov/nhl/DOE_dedesignations/Armstrong.htm
title=Withdrawal of National Historic Landmark Designation: Edwin H. Armstrong House|accessdate=2008-01-25|work=National Historic Landmark summary listing|publisher=National Park Service] It was demolished in 1983 and was de-designated as a National Historic Landmark later the same year.

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