https://vinnui.blogspot.com/2015/08/vco-and-waveshapers.html
vinnui's DIY analog synthesizer: VCO and waveshapers
Here is my new DIY VCO and waveshaper module. It contains the following circuits: - 2x Yusynth VCOs - 2x Suboscillators (for each VCO),...
analog synthesizerdiyvco