if i can find it i have a cool track (or more like test) i made, i build a dual atari punk console (APC is usually a 555 timer square wave oscillator, but i used a 556 which is two 555's in one, to get two frequencies), with pitch knobs for each oscillator, then ran it into pd where i gated/reverbed/delayed it... at the end of the track it plays the oscillators clean and sounds like total ass, but through Pd it sounds pretty awesome! i need to find it though because it's an old file that i can't seem to find. other than that though i haven't really done any circuit bending, let alone with pd.