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DiscoverCircuits.com -- Hobby Corner
Last Updated on:
Tuesday, June 01, 2021 03:06 PM
Hobby Circuits List
The contents &
graphics of Discovercircuits.com are copyright protected.
LINK to Dave's circuit, but DO NOT COPY any files to your WEB
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More
Beeper & Buzzer Circuits |
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Really Loud Beeper
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| If you need a real loud
beeper, this circuit delivers about 110db (12 inches away) from a 9v battery using a
single inexpensive C-MOS IC. An off-the-shelf piezoelectric beeping device is driven
at resonance to insure maximum efficiency. By changing the control IC to a 74AC14,
the same circuit can operate from 3v and 1.5v batteries.
Published in Electronic Design, Aug 5, 1993 |
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Click on Circuit Below to view PDF of Schematic |
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