Modular Synth Panels

Very nice, Bill! This is the one I would like to buy (two of) from  
Scott! I'm a big-knob guy too.

Here's hoping,

skw


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
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
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