Hi Matt

> How easy is it to extend the range of the fine tune control on the
> A-110 (the A-110 page on the Doepfer website says only "can be
> modified for a wider range").

You have to reduce the value of the resistor R5. You simply may solder a
new resistor in parallel to the existing resistor. The smaller this
resistor, the wider is the range of the potentiometer.

see also http://www.doepfer.de/a110_tec.htm

Florian