Feedback Loop for Resonance.

Question

I would like to try inserting some non-linearites into the resonance loop of a filter.

Should I use the Feedback Loop Input & Output or a Memorywriter?

I had a quick go with the Feedback loop, but it did not behave as expected. A 1 samp delay and a level to control the amount...

Here is my 'resonant fail'

Any tips to get started?

Thanks

Charlie