OldSynths

I own two Cats, both of which have suffered from tuning instability.  On the 
first it was a matter of thoroughly cleaning the j-wires and contact bus 
bars as well as replacing the keyboard bushings.  On the second I found that 
resoldering the 2 ceramic caps that hang from the bottom of the board helped 
with tuning stability...go figure!  They occasionally wander a bit 
especially in the first half hour or so, but since the repairs, they've been 
pretty solid.