Hacked Gadgets Forum

May 6, 2009

Piezoelectric Amplifier Circuit

at 4:50 pm. Filed under Electronic Hacks

 

Piezo buzzers can be found everywhere, next time you throw out an old smoke detector be sure to remove the piezoelectric element from it and stash it in your parts bin. If you want to monitor sound with a piezoelectric element it’s not that easy since the voltage produced by the device is so small. Nerd Kits has not only provided a circuit to help out they also walk through the circuit and explain it step by step.