magnet cartridge amplifier


Posted on Feb 5, 2014

a magnetic pickup from an old record player can make a great pressure, and vibration sensor. replace the needle with a plate of thin metal (copper off a pcb is good, ) and you`ve got an incredible touch sensor. use this circuit to amplify the circuit before passing it into sound level detector.


magnet cartridge amplifier
Click here to download the full size of the above Circuit.




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