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Former MIT President, Electrical Engineering Professor Emeritus ...
Sep 20, 2017 ... ... regenerative receiver built during World War II when Amateur Radio was suspended for the duration. Gray said he entered high school “with ... Learn More
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The EMI Finder
Some of the typical broadband emit- ters of radio frequency interference. (RFI) that you can pinpoint are power- line insulators, computers and indus- trial ... Learn More
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VHF Projects
The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources. Learn More
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Transatlantic Reception Anniversary Special Event Set for ...
Dec 7, 2016 ... The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, ... Learn More
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The Transatlantic Tests
May 1, 2017 ... The First Trial-1921. Page 2. 2. Early on Hiram Percy Maxim, President of the foundling American Radio Relay League. (ARRL) had editorialized ... Learn More
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Reminiscent Radio Tales *By Clarence D.Tuska
May 1, 2017 ... A mineral detector and a single telephone receiver on a ... regenerative receiver greatly increased the service range of amateur stations. Learn More
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The Radio Amateur's Hand Book by Archie Frederick Collins
Mar 16, 2010 ... By Martin Ewing, AA6e aa6e@arrl.net. March 16, 2010. From spark to phone -- an interesting look at the technologies of ham radio's early ... Learn More
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Stabilizing Superheterodyne Performance - Electron-Coupled ...
Screen-grid coupling resistor, 50,000-ohm 1-watt carbon type. Radio-frequency choke for oscillator frequency range. Filament supply for '24 and '35 tubes, 2.5- ... Learn More
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Alfred Powell Morgan: the Eternal Boy Turns 120
Sep 10, 2009 ... The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, ... Learn More
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Three Amateurs Inducted into Consumer Electronics Hall of Fame
Nov 2, 2009 ... The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, ... Learn More
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