analogue neurons

this circuit was in a paper I had to read, it looked interesting so i built it with a few mods to suit synths. It can do a few different tasks, fed an audio signal and an envelope it can be a resonator/wave multiplier/gate. Fed two CV signals it turns them into something else. in the vid it is getting two LFO signals, as you can see, the output is all over the place.
Its a fun, unpredictable & simple circuit, so designed a dual version PCB for it, guess that will be on panel #4 or 5....