Redigerer Edwin H. Armstrong (avsnitt)

== Død ==
Alene og deprimert over alle patentstridighetene hoppet Armstrong i døden fra sin leilighet i fjortende etasje i New York City 31. januar 1954. Hans selvmordsbrev til sin kone inneholdt følgende beskjed: "May God help you and have mercy on my soul".<ref>{{Cite news |first= |last= |authorlink= |coauthors= |title=Edwin H. Armstrong, Inventor, Dies in Plunge |url=http://pqasb.pqarchiver.com/courant/access/887794342.html?dids=887794342:887794342&FMT=CITE&FMTS=CITE:AI&date=Feb+02%2C+1954&author=&pub=The+Hartford+Courant&desc=Edwin+H.+Armstrong%2C+Inventor%2C+Dies+in+Plunge&pqatl=google |quote= |work=[[The Hartford Courant]] |date=2. februar 1954 |accessdate=2008-11-21 |archivedate=2009-02-24 |archiveurl=https://web.archive.org/web/20090224054621/http://pqasb.pqarchiver.com/courant/access/887794342.html?dids=887794342:887794342&FMT=CITE&FMTS=CITE:AI&date=Feb+02%2C+1954&author=&pub=The+Hartford+Courant&desc=Edwin+H.+Armstrong%2C+Inventor%2C+Dies+in+Plunge&pqatl=google |url-status=yes }}</ref><ref>{{Cite news |first= |last= |authorlink= |coauthors= |title=Died |url=http://www.time.com/time/magazine/article/0,9171,860424,00.html |quote=Edwin Howard Armstrong, 63, electronics genius, one of the fathers of modern radio; by his own hand (a jump from his 13th floor apartment) after writing a note to his wife which concluded: "May God help you and have mercy on my soul"; in Manhattan. In 1913 he worked out the regenerative circuit, which outmoded crystal receiving sets with a sensitive vacuum tube system; his superheterodyne circuit, developed in 1918 while serving in France, is still the basic circuit of AM radio. In 1939, he perfected a method for eliminating static (now known as FM). A professor of electrical engineering at Columbia University for the last 20 years, the earnest, driving inventor earned millions of dollars in patent royalties, died a rich man. |publisher=[[Time (magazine)]] |date=8. februar 1954 |accessdate=2008-06-21 |archivedate=2009-01-14 |archiveurl=https://web.archive.org/web/20090114205201/http://www.time.com/time/magazine/article/0,9171,860424,00.html |url-status=yes }}</ref> Enken Marion, som hadde vært Sarnoffs sekretær før hun giftet seg med Armstrong, fortsatte patent-stridighetene med RCA og vant til slutt.<ref>{{Cite news|first= |last= |authorlink= |coauthors= |title=Esther Armstrong, 81, the Wife Of Inventor of FM Radio System |url= |quote=Esther Marion Armstrong, the wife of the late Maj. Edwin Howard Armstrong, a leading American inventor, died Wednesday at the Exeter (N.H.) Hospital, after a brief illness. She was 81 years old and lived in Rye Beach, N.H. |publisher=[[The New York Times]] |date=1979-08-10 |accessdate=2007-07-21 }}</ref><ref>{{Cite news|first= |last= |authorlink= |coauthors= |title=Armstrong Suit Over FM Settled. R.C.A. and N.B.C. to Pay '$1,000,000' Ending Action Begun by Late Inventor. |url=http://select.nytimes.com/gst/abstract.html?res=F40E1EFC345A157B93C3AA1789D95F408585F9 |quote=The Radio Corporation of America and the National Broadcasting Company have settled for "approximately $1,000,000" claims against them by the estate of the late Maj. Edwin H. Armstrong.  |publisher=[[The New York Times]] |date=1979-08-10|accessdate=2007-07-21 }}</ref>