Edwin Howard Armstrong (December 18, 1890 - January 31, 1954) was an American electrical engineer and inventor. Armstrong was the inventor of the FM radio. Wikipedia
The definitive Wikipedia entry for Edwin Howard Armstrong. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Edwin_Armstrong
R adio'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). users.erols.com/oldradio/
The definitive Wikipedia entry for Edwin Howard Armstrong. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Edwin_Howard_Armstrong