MOTM

Try this:

a) set RES to 0 on the panel
b) plug out into mult
c) plug 1 mult out into '110 X IN
d) set X on AC, Y on DC
e) use ADSR OUT + into Y IN
f) output of RM into one of the AUDIO INs of the '420

so, we are applying the filter output back into it's input, trrough a 'VCA'.
This is essentially how all
VC Q is done.

Paul S.