that's a single pot with a push/pull DPDT switch. mouser has 'em for $4.14@:
http://www.mouser.com/_/?Keyword=313-1600F&FS=Trueergonomically, you wouldn't want a single knob, tho... as soon as you pushed/pulled to move from one pot to the other, you'd likely jar the setting on the first one.
and as others mentioned, you typically don't need different values... for vco course/fine freq controls, for instance, you just connect the wipers of the 2 pots to your CV summing node through different value resistors.
b
--- In ModularSynthPanels@yahoogroups.com, Kendall Jackman <kendall.jackman@...> wrote:
>
> Are the two pots both the same value? If so, they'd be useless for
> coarse/fine tune, wouldn't they? I assume you'd want a 100k plus a 10k or
> 1k, and wire them in series, no?
>
> Actually, I'd like the "push-pull" style pots even better:
>
> http://store.guitarfetish.com/PPOT250-250K-PushPull-Pot-Switch-Module_p_614.html
>
> ...assuming this is what I think it is: push or pull the knob to activate
> the second pot. This way, you'd only need one knob. On the downside, the
> pot indicator (dot or line or whatever) would become meaningless, so you'd
> have to use "blank" knobs. But only ONE knob for each pot! And for the
> fumble-fingered among us, it's easier to use than the concentric type.
>
> I could live with the blank knob problem. I'd typically use this for
> coarse/fine tune (either on a VCO or a sequencer), and I set these by ear,
> so I don't really care where the knob points.
>
> If nobody knows the answers about these, maybe I'll pick up a couple and
> play around with them. Although they do say "available soon..."
>
> If we did a group buy on custom concentric or push-pull pots, would everyone
> want both pots the same value, or some kind of 100k/10k or 100k/1k thing?
>
> -kj
>
>
> On Mon, Jan 3, 2011 at 6:55 AM, Godric <godric_wilkie@...> wrote:
>
> >
> >
> > Hmm Good price doesn't say whether they are linear or log taper.
> >
> >
> > --- In ModularSynthPanels@yahoogroups.com<ModularSynthPanels%40yahoogroups.com>,
> > "henkdevries66" <dnode@> wrote:
> > >
> > >
> > >
> > > Found some when looking into buying MODboards, not sure if R values are
> > usable?!
> > >
> > > http://store.guitarfetish.com/MODboard-Separate-Components_c_45.html
> > >
> > > grtz, dnode
> > >
> >
> >
> >
>