Wicked Switches Problem [troubles in paradise]

[hammerheadmusicman]

Just to add a bit of perhaps useless info:

The circuit has no problem with the Rat build I did, even on the highest gain settings. I had problems with the APIS Klon klone, were I would get high pitched oscillation as I turned up the gain. It was extreme. But I chalked it up to a grounding issue, or some knuckle-headed mistake of my own making. So for whatever it's worth.

By the way if anyone makes a batch of PCBs for these let me know if you'd be willing to part with a few (for a price of course.  )

What charge pump do you have in the Apis? That can cause the squealing..

George