> > I think a good compromise would be a jumper for the tune potentiometer

that

> > defines the tuning range: ~ +/- 1/2 octave (for customers who prefer the
> > octave switches) or ~ +/-5 octaves or even more (for customers who

prefer a

> > wide range for the tune control).
> That is ok, but where to place the rotary switch for multiple octave
> switching on the frontpanel

That's indeed our main problem ...

Dieter