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 > > >
Message
Re: Living VCO
2009-09-13 by wjhall11
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