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Dave's Circuits
Circuits designed by David Johnson, P.E.

Master Category List - Dave's Circuits
 Last Updated on: Friday, July 18, 2008 11:34 AM

Beeper & Buzzer Circuits    Piezeoelectric Circuits

Also see Circuit in DiscoverCircuits' Hobby Corner
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 Drawing Below to view PDF version of Schematic

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

Beeper & Buzzer Circuits    Piezeoelectric Circuits

Master Schematic Category List - David A. Johnson, P.E.
 

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