this filter uses a 10 stage diode ladder to do it's magic. it can sound very nasal and robotic. i was able to fit the basics into a 6hp width panel.
specs:
(1) fm bi-polar input w/ positive and negative sweeping knob. middle position is zero.
(1) direct cv input.
(1) lowpass input
(1) hi pass input
(1) band pass input
(1) filter output
there is a multiturn trimmer on the pcb that can be adjusted to determine how much screech you want at full rez. the other trimmer determines the cutoff offset (how low you want the lp).
