Square wave adding synthesizer - part 3: The filters
The demo starts at 4:30
Next step in my little project is to add some filters. I am re-using the circuit from a project I did some years ago for the VCF, except for a few resistor values - and the filter itself is based on the one found in EMS VCS3.
The music is just me noodling away on my Elka X-1000 organ.