three oscillators in a wooden box

i think this is my favorite build to date.   it's a little noise box i built based on a CD4093 chip following chapter 20 of previously mentioned book Handmade Electronic Music.  the three faders control 3 oscillators that modulate each other.  the bigger knob is volume control and the smaller knob is a battery starver -  meaning it diminishes the voltage going to the chip making it behave in unstable but interesting ways.   the box is a repurposed music wooden box (oh the irony) that i sanded and resealed.  installing the 1/4'' jack was challenging given the thickness of the wood so i cut a big hole and added a piece of stainless steel i had lying around.  the rca jack is meant to connect an analog sequencer (i will build in the future) and the hole to the right with the shy little dot is the power input.

i'm very happy with the way it looks and with the way it sounds.  the faders were a serious pain in the ass to install but they make up for it with the playability they offer.   you can control the three of then with one hand in ways you couldn't with your standard knobs.

for a cool looking diagram that explains how this works check out the excellent tutorial on building logic ic synthesizers from beavis audio research (found via GetLoFi).