Resonance as an effect

[Paul Marossy]

Cool, thanks for the ideas alderbody. 

[Noplasticrobots]

If you have any lump of circuit with a gain of more than 1, then there is potential to feed back some of the output to the input, and get it to 'resonate'. What frequency it will do this at, depends on the frequency response of the circuit you started with.
If the gain is greater than 1, but out of phase, you need to have a phase switching stage in the feedback path.
A major problem, is that when the gain gets greater than 1, the resonance builds up & you get total overload... so you might want diode limiters for example.

Ok, so any basic distortion/fuzz/booster will theoretically give us a circuit to enable resonance. I have a basic discrete distortion (similair to bazz fuss) on my breadboard and I'd like to try and give it a resonance pot. More questions:

How do I route the output back to the input in a multi stage circuit? Is it as simple as just running a connection between the two ends? How do I tell if the gain is out of phase, and does this mean I'd use a PNP tranny to flip the phase?