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Subject: Re: Living VCO

From: "wjhall11" <wjhall@...>
Date: 2009-09-14

John - thanks, yes, exactly... the 4U version has the tiny 1/2 in knobs and very small - like around 1.2" - verniers - only a little bigger than the standard MOTM knob.

If you go to the 3/4" Tellun style knobs you go to 5U and at that point, the size of the vernier isn't really a factor - there's enough space for the Bourns verniers, for instance.

<shrug>

Just a thought.

Bill and Will



--- In ModularSynthPanels@yahoogroups.com, "John L Rice" <Drummer@...> wrote:
>
> Hi All,
>
>
>
> I'm not planning on building this but I read all of these
> construction/planning with interest! ;-)
>
>
>
> I may have missed the discussion so forgive my rambling if I have, but in
> case not, there are several different diameter counting dials available that
> could be considered in the design. While the large ones look the coolest to
> me, there are counting dials that are only about the same diameter as a 10
> turn pot which would work well for a more compact design while still keeping
> the turn counting functionality. In fact, I think the small counter is
> slightly smaller in diameter than a standard MOTM knob. I've uploaded a
> comparison picture to photo album in this group called "Stuff by JLR"
> Here's the link to the knob on Digikey's site:
>
> http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=H-22-6A-ND
>
>
>
> John L Rice
>
>
>
> From: ModularSynthPanels@yahoogroups.com
> [mailto:ModularSynthPanels@yahoogroups.com] On Behalf Of wjhall11
> Sent: Sunday, September 13, 2009 12:39 PM
> To: ModularSynthPanels@yahoogroups.com
> Subject: [ModularSynthPanels] Re: Living VCO
>
>
>
>
>
> Will and I were talking about this -
>
> We think that the two Living VCO panels worth considering are both
> counting-dial (Vernier) versions; the difference being a 5U and a 7U
> version.
>
> The 5U version uses the smaller knobs for all 16 controls except the three
> verniers. There are no significant modifications to Jurgen's design or
> suggested hook-ups. I can't quite recall, but two of the switches may be
> something Will suggested, but if so, they're very straightforward additions
> - of that I'm certain.
>
> You can read about our ideas and see our panel designs here:
> http://www.dragonflyalley.com/constructionJHLivingVCO.htm
>
> OK - so that's the 5U panel...
>
> The other panel worth considering is a 7U design. If you increase the knobs
> to standard MOTM size, you need 7U of space. You can implement the 7U with
> the verniers off-set a bit to make more space in the "driver section" for
> the switches (the design on top on our page), or you can even out the grid
> as suggested by Greg James (the design below the others on our page).
>
> In either of these cases, there's space for an extra row of jacks - so we
> figured we'd build three wave-shapers into the module... a relatively
> straightforward thing to do using 3 MFOS VCO pcbs for their wave-shaper
> circuits.
>
> You could implement the 7U panel without the waveshapers and extra row of
> jacks.
>
> But if you really didn't want the verniers, you could do the Rough / Fine
> tune idea a-la Dave Brown.
>
> So to re-cap - I guess here are the choices:
>
> 1. Verniers and small knobs 5U
>
> 2. Verniers and large knobs 7U, offset verniers and including waveshapers
>
> 3. Verniers and large knobs 7U, even verniers and including waveshapers
>
> 4. Verniers and large knobs 7U, offset verniers no waveshapers
>
> 5. Verniers and large knobs 7U, even verniers no waveshapers
>
> 6. No verniers, different design
>
> Bill and Will
>
>
> --- In ModularSynthPanels@yahoogroups.com
> <mailto:ModularSynthPanels%40yahoogroups.com> , Ben Stuyts <ben@> wrote:
> >
> > On 10 sep 2009, at 03:54, Scott Deyo wrote:
> >
> > > So what am I making here? One vernier and one non-?
> > > Keep in mind, this will make each one more expensive.
> >
> > I'd like a vernier-style panel. I love the looks of them.
> >
> > Ben
> >
>