This is a big project I've been working on for a while.
The main synth modules (VCO, VCA, VCF and the ADSRs) were all kits by a UK company Soundtronics.
I got the PCB and parts list, so I didn't design them but I did build them
The panels are printed on cheap vinyl I got from eBay, so it's not the best but it works well.
The parts I designed myself are the power supply, MIDI to CV and Sequencer (additional projects on my profile here)
Enjoy this project?