This is an interesting point. At what diameter knob does the fine
resolution become limited by the potentiometer characteristics rather
than the knob size? I know for certain that it is easier to dial in
sequencer control voltages on my Synthesizers.com sequencers than on a
Serge sequencer. That's roughly a 2X size difference. If we go another
2X, does this knob size advantage suddenly become moot?
John Loffink
jloffink@... > I still disagree. Having a honkin big knob doesn't guarantee that the
> pot itself is capable of doing the fine control necessary. Trying to
> move the pot wiper in smaller and smaller increments causes
> mechanical limits to come into play, including backlash, friction on
> the wiper, and shaft wobble. You could find yourself unable to zero
> in on the 'sweet spot'.
>
> Now if you put a multiturn vernier under the knob, I'd agree with
> you. But it would slow you way down doing large manual sweeps. That's
> why coarse and fine are a good idea on both a VCO and a freq shifter.
>
> Moe
>