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Learn Computer Repair at Home. Start a Computer Repair Business from Home. http://www.ebay.com/sch/probusinesskit/m.html?_nkw=&_armrs=1&_from=&_ipg=25&_trksi…
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Warm Tube Indicator

This LED indicator is inserted between the B+ and the plate resistor. It lets you know that the power is on and, more importantly, the tube (valve) is warmed…
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Business Insider

My New Favorite Social Network Is Ham Radio
Business Insider
Amateur radio, or ham radio, is "the use of designated radio frequency spectra for purposes of private recreation, noncommercial exchange of messages, wireless experimentation, self-training, and emergency communication." This means that people all

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ham amateur radio – Google News