Article View: sci.electronics
Article #6577Re: Sound-powered telephones
From: Michael A. Covington
Date: Tue, 18 Aug 1992 03:17
Date: Tue, 18 Aug 1992 03:17
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In article <Bt5Gry.871@usenet.ucs.indiana.edu> commgrp@silver.ucs.indiana.edu (BACS Data Communications Group) writes: >You can make sound-powered telepones from "piezoelectric speaker >elements" available at Irish Electronics (Ray D. O'Shack :-), part # >273-091 ($2.49). Just connect one to each end of a pair of wires. >It's a great toy for kids, and may have "real" applications too. I'll bet they would also make excellent high-impedance earphones for crystal radios. -- + Michael Covington - Artificial Intelligence Programs - U of Georgia - USA + Unless otherwise noted, these are private opinions, not official statements. + VOTE NO GEORGIA LOTTERY - don't tie education to an unpredictable income.
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arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!uwm.edu!ogicse!emory!athena.cs.uga.edu!mcovingtReferences:
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Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!uwm.edu!ogicse!emory!athena.cs.uga.edu!mcovingt From: mcovingt@athena.cs.uga.edu (Michael A. Covington) Newsgroups: sci.electronics Subject: Re: Sound-powered telephones Message-ID: <1992Aug18.031748.23105@athena.cs.uga.edu> Date: 18 Aug 92 03:17:48 GMT References: <Bt5Gry.871@usenet.ucs.indiana.edu> Organization: University of Georgia, Athens Lines: 12