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American Philosophical Society
Cosmic Inventor: Reginald Aubrey Fessenden (1866-1932) (Transaction 89-6)
Transaction 89 No. 6
A study of the inventor Reginald A. Fessenden, who merits much more recognition than he has commonly received. Born in 1866 in East Bolton, P.Q., Canada, he enjoyed close links to Canada, the U.S. & England. Although the core of his more public fame rests on his seminal contributions to wireless, the “firsts,” contained in the papers he wrote & the more than 200 patents he was granted, cover an amazing range. In addition, Fessenden developed the concept of what is today termed amplitude modulated (AM) radio. He produced & improved upon equipment to demonstrate the principles involved, being the first individual to transmit voice & music over the air. He was the first to establish consistent 2-way wireless communication across the Atlantic Ocean. In the course of his wireless work, he was granted a patent for use of the heterodyne principle that became so important in the vacuum tube era of radio & beyond. Illus.
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