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Last Updated on: Tuesday, June 01, 2021 03:06 PM

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More  Beeper & Buzzer Circuits    Piezeoelectric Circuits

VERY LOUD BEEPER CIRCUIT
 
This circuit generates a continuous tone instead of a pulsing one. The 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.

Click on Circuit Below to view PDF of Schematic

Very Loud Beeper Circuit designed by Dave Johnson, P.E. (June 3, 2000)

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