Subject:
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Sound Sensor Mic
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Newsgroups:
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lugnet.robotics
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Date:
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Sun, 24 Jan 1999 20:08:58 GMT
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Viewed:
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1147 times
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If you are having trouble finding the crystal microphone used in my sound
sensor I've found the earphone from a crystal radio kit works OK. Radio
Shack sells a kit like this for about $7.
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