Quote:
Originally Posted by Reece
Re: "free power" crystal radio: people are still building these and some report feeding a speaker with such a set that can be heard a room away.
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By golly you're right. And a bit of snooping reveals these interesting, related items..
http://www.ke3ij.com/nopower.htm
http://www.youtube.com/watch?v=gcui0K7JZXA