Metallic Hi-Hats

+/-12v analog drums

A metallic hi-hat module based on six square wave oscillators.

Warning: this produces quite some noise, I suspect it’s leakng from the internal VCA. Still have to troubleshoot further.

My demo:

Schematics

The oscillator bank can be tuned by tweaking the values of C1 and R1, C2 and R2, and so on. You can even replace the resistors with a trim pot to make it more versatile.

Metallic Hats Schematic

KiCAD files can be found over at my Github page.