What Phase Shifter, if any, Sounds the Closest to a Maestro PS-1?
I've only seen it in photos, almost always I see them for sale with no footswitch in sight! But yes good call, I kind of realized I wasn't accurate after I posted, if you can find one then you're set, plus I think someone can custom-build a footswitch for your old Maestro if you need one (trying to remember who-- oh yeah!), Ronsound can make one.
It has foot control...