Hi Ingo

> am i the only one who finds these octave switches useful

The octave switch is a nice add on, but to my taste, the Doepfer VCOs
lack a continuous coarse tuning over the whole range. I modified my A111
that way, that the "tune" pot has a range of more than 5 Octaves and the
"fine" pot gives a range of 3 semitones up and down.

Florian