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VERY LOUD BEEPER CIRCUIT

2018-01-16 16:39  
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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.

 

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

 

 


 

 


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