This is an all analog synthesizer module combining three different modules. There are two simple LFOs with triangle and square outputs and a range switch to put acheive audio rate oscillation. There is then a sample-and-hold module based on the LF398 monolithic sample and hold chip. The two LFOs are normalled to the inputs of the SH so that you can get random voltage output without having to do any patching.
The board features PC mounted pots for less wiring, and mounting holes for flexibility in panel layout. There are Eurorack and MOTM power connecters.
For complete descriptions of the way the module is used, and how to build it, including schematics and parts list; download this PDF file.
Boards are available now. Price for 1 PCB is $8.
Unfinished eurorack
panels are available for this project, they are 8HP and cost $8 each.
There is
more information here about panels. If you're interested in drilling your own panel for
this project, feel free to use my
drill guide. That image should be printed at 300dpi for proper
scaling.
