Today I finished the Octo VCO. Fortunately there where only some minor design flaws I could correct without having a new PCB produced. Currently I have nothing to drive all eight channels separately so I hooked two channels together and connected it to the Midimuso. What should I say, it’s a beast. Hear for yourself:
The VCOs are based on a design I posted earlier in Non 3340 oscillators - #72 by jkb
For the brave I uploaded everything to Github: GitHub - polykit/vco-8: Analog Octo Voltage Controlled Oscillator VCO PCB and schematics
I hopefully corrected all problems in that version.
Some documentation will follow soon.
Edit: added another example