Hi all,

Search-bar'ed and googled to this, but I can't find anything usable, so I'm turning to you guys. Does anyone know if it's possible to add a depth control to a Phase 90, and, if yes, how?
Remove R28 and replace it with a B50K or a B100k pot wired as a variable resistor (one wire to the middle lug and one wire to an outer lug). If it works backwards, move the wire on the outer lug to the other outer lug.
Aren't you talking about putting a pot that's connected to the 9v? I guess I just don't think removing a resistor is a big deal anymore.