I have had experience with a couple of synths with multi turn VCO
tuning. I've had 3 EMS Synthi (2 AKS and a VCS3) and a 2 and 4 voice
Oberheim. Both units did not have real mult-turn pots but instead had
multi turn knobs that geared down to standard pots (a much cheaper
solution). The Oberheim units were the easiest to use. The outer big
knob were coarse and the inner were fine. That way you didn't have to
move your hand position and the panel space was less. The multi turn
EMS pot was a drag when you wanted to go from one end to the other
(this was somewhat compensated for with the EMS's huge 0.32v/oct CV
range). I dislike switches cause it always seem like I would tune to
one end of the pot, find it isn't far enough, flip the switch, then
have to go back to the other end of the pot for that little bit that
I almost got to. I vote for Coarse/Fine.
-James

On Sep 11, 2006, at 4:41 AM, selfoscillate wrote:

>
> hello list,
>
> i'd like to start a poll, but want to collect
> additional ideas first.
>
> the preliminary frontpanel design of the a111/2 dynamic vco
> offers two knobs for tuning: coarse tune and fine tune.
> lets say, that this is option 1.
>
> actually there are two other ideas regarding the tuning controls.
>
> option 2:
> an additional octave switch (like on the a111),
> so we would have three controls for tuning.
>
> option 3:
> a single multiturn tuning knob (similar to the zeroscillator
> tuning knob, but probably not that big in size), so
> we would have only one knob for tuning. this would be the
> most expensive solution tough.
>
> any other suggestions
>
> btw, from my personal preference i would prefer option 2.
>
> best wishes
>
> ingo
>
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>
> Yahoo! Groups Links
>
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>


James Husted
The ErsatZ Planet Graphics and Sound
http://homepage.mac.com/ersatzplanet/
james.husted@...

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