Doepfer

Currently my two A-110's are kinda out of tune. I need to increase the "tune" knob on the second Osc by 3 cent to get them in tune. Is there anything I can do to fix this, not that it's a huge problem the Doepfer still sounds great.

Also the second Osc crackles when I apply very gentle pressure to the range knob. Again, not a huge problem (Both range knobs are a little wobbly to touch).