Modular Synth Panels

Questions/ comments :
Since most people may use 24mm dual-gang Alphas for Freq, I should  
move them down a bit to make sure they clear rails/ cabinet tops.
I think the 2U's tickmarks will make it look extra cramped since I  
can't stagger the pots, really.

What are the mods on this? If possible, I'd like to go non-mods.

Scott Deyo
contact@...
The Bridechamber
www.bridechamber.com
Jealous Edison Record Kompany
www.jealousedison.com




On Sep 7, 2009, at 3:02 AM, wjhall11 wrote:

> Hi guys -
>
> I know this issue is probably ultimately sleeping until Scott Deyo  
> has time in his line-up for fabrication, but looking back over Dave  
> and Will's work here, I made a change to Will's 3U design to come  
> closer to what I would want (FWIW).
>
> It has 3 input jacks, but no input attenuation. (this means an input  
> mix buffer thing and an inverter built into the little breadboard  
> area on the PCB a la Dave's idea.) It has a LINK output for ganging  
> a couple resonators together.
>
> Image:
>
> http://www.dragonflyalley.com/images/JHpolymoogResonator/JHPolymoogResV4vIIwidth1-92in.jpg
>
> I like Dave's 2U design and it will probably be best for the  
> majority of us. My own preference is for the bigger knobs - just  
> 'cause I prefer them. My hope is that Scott will be able to make  
> both versions.
>
> Thanks, All.
>
> Bill
>
> --- In ModularSynthPanels@yahoogroups.com, "wjhall11" <wjhall@...>  
> wrote:
> >
> > OK, Mr. B., in that case, the output to the MIX jack should be re- 
> inverted, right? We could use one side of a dual op-amp for the  
> input mix inverter and the other side to re-invert the summed input  
> for the MIX jack.
> >
> > On the PCB drawing, Mr. Haible has the three pads labeled "DRY"  
> and, because his prototype photo has a pot there, Dad and I decided  
> it must mix input and the resonator output - so when I sketched out  
> the panel, I called it "MIX". If, when we see the schematic, it  
> bears out that this is what that control actually does, what would  
> you think of re-naming the output you're calling "MIX" to something  
> like "LINK OUT" to avoid confusion?
> >
> > In my latest 3U interpretation of your 2U interpretation of my/our  
> interpretation of a guess, I call the two outputs LINK OUT and RES  
> OUT. Just an idea. If we could but say these in Latin, I'm sure, as  
> Greg says, it would be so much more impressive.
> >
> > Will
> >
> >
> >
> > --- In ModularSynthPanels@yahoogroups.com, "djbrow54" <davebr@>  
> wrote:
> > >
> > > Yes, a mixing inverter. I don't know what the front end looks  
> like yet to see if it can be expanded. If not, there is a breadboard  
> area on the PCB which will eliminate the need for a second PCB to  
> add an op amp.
> > >
> > > Dave
> > >
> > > --- In ModularSynthPanels@yahoogroups.com, "wjhall11" <wjhall@>  
> wrote:
> > > >
> > > > Yes. That's good. Are you imagining a mixing inverter thing,  
> Mr. B, or just the inputs being tied together somehow?
> > > >
> > > > --- In ModularSynthPanels@yahoogroups.com, "djbrow54"  
> <davebr@> wrote:
> > > > >
> > > > > Mix is the summed output of the inputs. Out is the output of  
> the resonator. I was thinking that Mix out might be handy if you  
> wanted to cascade two resonators or run them in stereo.
> > > > >
> > > > > On the other hand ... as people have noted, you add another  
> attenuator and have three inputs. I put a picture of it on there as  
> well.
> > > > >
> > > > > Dave
> > > > >
> > > > > --- In ModularSynthPanels@yahoogroups.com, Scott Juskiw  
> <scott@> wrote:
> > > > > >
> > > > > > I like it. I was hoping to build this into 2U.
> > > > > >
> > > > > > What's the difference between the MIX and OUT jacks? Is  
> the MIX jack
> > > > > > after the MIX pot and the OUT jack just the straight  
> resonator output?
> > > > > > If so, you could have 3 inputs by getting rid of the OUT  
> jack. Bottom
> > > > > > half of panel would be like this:
> > > > > >
> > > > > > IN1 pot, IN2 pot, IN3 pot
> > > > > > RES pot, PASS MODE switch, MIX pot
> > > > > > IN1 jack, IN2 jack, IN3 jack, MIX jack
> > > > > >
> > > > > > Just throwing out ideas.
> > > > > >
> > > > > > On 28-Aug-09, at 1:40 PM, djbrow54 wrote:
> > > > > >
> > > > > > > I used your layout design and did a 2U version with  
> small knobs. I
> > > > > > > added a second input and attenuators to make for a more
> > > > > > > symmetrical layout.
> > > > > > >
> > > > > > > http://modularsynthesis.com/jhaible/resonator/polyres.htm
> > > > > > >
> > > > > > > Dave
> > > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
>
>
>