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buzzer circuit needed

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tripleh

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I 'm like to build a small buzzer circuit. No bigger than a dime. Does any body have any Ideas. I think a 555 timer is too big.
 
I made one the size of a small watch years ago I used an earphone to hear it. This Circuit will work on as little as 1.5v and you can use serface mount transistors. Use a speaker from a Cellphone.
 

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A piezo buzzer may do the trick!

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