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"Hobby Circuits for your Hobby Projects"

Last Updated on:  06/19/2009 03:12:06 PM

Very Loud Piezoelectric Beeper Electronic Circuit
designed by David Johnson, P.E.
This circuit generates a continuous tone instead of a pulsing one for your hobby project. As seen in the schematic, the hobby circuit delivers about 110db (12 inches away) from a 9v to 12v source using a single inexpensive C-MOS IC. An off-the-shelf piezoelectric beeping device from Panasonic is driven at resonance to insure maximum efficiency.

Click on Schematic below to view PDF version of this Circuit

Circuit Circuit Beeper Circuit Very Loud designed by Dave Johnson, P.E.
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