Kakofon

Here's my take on the famous Cacophonator, originally designed by Arthur Harrison.

I noticed the crazy sounds it would produce when shutting it off, so I added a voltage sag potentiometer to keep the voltage on lower levels. Also there's a second output, controlled by an on-off switch, as well as a passive two-potentiometer tone control.

Everything is housed into a plastic box with graphics printed on glossy paper.