DESCRIPTION:
MAM MB33 Retro with Acid FM mods:
This video mainly demonstrates using external audio inputs as sources for the new VCF FM mods, but also features a x0xb0x controlling the filter cutoff via a CV sequence plugged into the new VCF CV input.
For more details take a look at https://www.circuitbenders.co.uk/synthmod/MB33retro.html