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Old 13th Jan 2011, 8:20 pm   #12
Andrew2
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Join Date: Mar 2010
Location: Dukinfield, Cheshire, UK.
Posts: 2,034
Default Re: Battery-less audio amplifier

Back in the 60's there was a company that advertised all manner of odd projects in the back of PE and PW. My mate Pete bought a couple - one was a micro radio powered by a voltage-doubling crystal set and the other was a radio which got its ergs from rotting bread. They worked...just.
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