> A polarizing potentiometer with non-linear (less sensitive around 12
> o'clock) response would be nice. In another thread it was said, that it
> is difficult to implement.
>
> A-138c is one of my favourite modules, but sometimes making accurate
> settings is difficult.
>
> Jari Jokinen

We are about to redesign the A-138c but have problems with the additional
center terminals of the potentiometers with center detent and terminal as
they would require to increase the front panel width to 10 HP because of the
overlapping terminals. We will try if it's possible to cut the terminals
without damaging the potentiometer to keep the 8 HP width.

Best wishes
Dieter Doepfer