Have built a Thomas Henry LM-VCO and in the middle of building an Eddy Bergman / YuSynth ADSR and a VCA. Hooked up to an AI Synthesis Stereo Matrix Mixer and Hexinverter Mutant Brain with an Alesis QX-49 keyboard and SR-18 drum machine.
a 4hp lfo would be quite a challenge for me, but i’ll look into it. from my understanding, the lfo would let me tweak the vca parameters and it could be used as an fm input for the vco?
If it’s fast enough it’s good for FM, but it can also wiggle that Pulse Width Modulation input. Can also help with lasers/sirens in the v/oct input. Can also wiggle a filter cut off. LFO’s are awesome <3. But if I had to choose in your set up, the filter will make the biggest difference to your overall sound. Your ADSR envelope will do the heavy lifting, especially with that really useful inverted output