CMOS drone/noise generator module (8HP)
You can get sound samples here: https://soundcloud.com/yorkmodular/xo106-sample-1 and here: https://soundcloud.com/yorkmodular/xo106-445-sample-2
Our old friend the 40106-based drone generator - no real surprises here: four channels of the 40106 set up as tunable(ish) oscillators, mashed together using a CMOS logic chip and then output through a Sallen-Key filter. Throw in the current-starve option and sonic wackiness can often ensue.
Use it as a standalone drone generator, as it's capable of producing some fairly dense textures in the right hands, or use it with an envelope generator and a VCA and you've got a source of nice, clashy percussion sounds. There's a range switch for the filter with two settings - 'raw' and 'cooked'; 'raw' is pretty much what it says on the tin, whereas 'cooked' mode is a bit less aggressive and could even sound mellow in the right hands(!)
Finished with Alpha potentiometers throughout and finished with black hardware and Befaco micro-knobs.
8HP wide and less than 20mm deep so will fit in even shallow cases - mounting hardware and a power cable are also supplied.