Piezo pc keyboard drum

130

01:22:42

Im trying to make a piezo drum using a pc keyboard circuit. The transistor simulates the conection betwen two keyboard's circuit terminals and the lamp is the letter trigered in pc with some drum sound. It uses a opamp conected to piezo. Im correct with this? May someone help me with? 

Edited: put a switch that simulated the hit on piezzo...

published 7 years ago

pedeopmf

7 years ago

Nobody?

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