Roland Sh-101 Nova Mod

via this auction
"Modifications are:
1) Filter input with volume attenuation knob (run your other synths through the classic Roland filter!! the filter overdrives like nobodies business and sounds really really swell)
2) Filter CV input (control the filter with your favorite analog synth or other CV gear!)
3) Filter FM CV input (you won't find this very often, it's a second CV input for filter control so you can get your FM on!)
4) PWM source selector (Change what type of PWM you have, basically gives you a very wide range of new tones)
5) LFO rate switch LOW/MED/ULTRA FAST (ultra fast lfo makes some really *&^%ed up sounds!)"