A CD4093 drone synth with twelve controls... I can tell you what exactly two of them do.
A CD4093 quad NAND drone synth on my own stripboard layout. The fourth time I've built this board, and it's the one I kept adding to.
Twelve controls on the lid: one toggle is power, one knob is volume. The extras are bends I put in on top of my own circuit, and most of them only do anything depending on where the others are sitting. A knob that's dead in one configuration is the most important control on the box in another. so there's no knob list and I'm not going to invent one, that's just what it is now.
LM386 and a speaker in the tin so it makes noise on its own, 3.5mm switched jack that kills the speaker when you plug in, 9V inside. The tin is a decorative pansy thing, lid is the panel, silver hardware because it works with the pattern.
The [layout is free](https://messopedals.com/diy/onion-madder/stripboard/cicada-nand/) if anyone wants to build a sane one or maybe do their own bends.
There is a much longer video if anyone is interested in hearing more of these weird sounds.