T tripleh New Member Mar 15, 2005 #1 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 '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.
hotwaterwizard Active Member Mar 22, 2005 #2 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. Attachments audio_oscillator.gif 5.5 KB · Views: 1,003
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.
hotwaterwizard Active Member Mar 22, 2005 #3 A piezo buzzer may do the trick! **broken link removed** **broken link removed** **broken link removed**
A piezo buzzer may do the trick! **broken link removed** **broken link removed** **broken link removed**