BMC46. Digital Noise
This module is a PIC based noise source. It's capable of a wide variety of sounds while using only a couple of simple controls.
Here is an mp3 demo of the module. In this demo the noise knob is slowly turned from fully counterclockwise to clockwise position.
The board features PC mounted pots, for less wiring and also mounting holes for flexibility. There are Eurorack and MOTM power connecters. It can be built in +/-12V or +/-15V systems without any modifications.
For complete information on this module, download this PDF file.
A PCB and PIC are $16.
Unfinished panels are for sale for $8 each. Please read this page on unfinished panels before ordering.
If you'd like to drill your own panel, here is the drill guide that I use to make these panels. It should be printed at 300dpi.