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Subject: Re: [ModularSynthPanels] Re: Another take on small pots in MOTM \tformat

From: Andrew Listmayer <andrewlistmayer@...>
Date: 2009-12-22

I see where you are coming from  and that is one of the main reasons I chose MOTM format myself. However, as my PCB backlog grew and grew to nearly 100 modules, I realized something had to get cramped. Either my modules or my house. It all depends on how many modules you have and how large you want your system to be. I just want my system to be within arms reach and I really don't want to have to take a walk just to patch 2 modules together ;)

On Mon, Dec 21, 2009 at 5:48 PM, poppaneedsanap <whitey@...> wrote:
 

for me, half the point of me getting into 5U format and away from Euro was the appeal of large uncramped modules..
to each his own though..

I do like the idea of an all CGS synth though!
-L



--- In ModularSynthPanels@yahoogroups.com, Richard Brewster <pugix@...> wrote:
>
> I uploaded a couple of FPD files that I designed today. The idea was
> instigated by a fantasy I had about building a CGS-only synthesizer,
> optimizing for panel space. I wanted to use the 5U by 1U MOTM panel
> size for compatibility with my cabinets. I thought about using small
> jacks like Blacet, but quickly realized that the panel space hog in MOTM
> format is the large knobs, and that I could still use 1/4 inch jacks. I
> started playing around with some small diameter Alpha pots and
> discovered that they fit in a matrix of 1-inch vertical separation by
> 7/8-inch horizontal separation (the same spacing as the jacks on a MOTM
> panel). This meant that the pots can line up directly above the jacks.
> The only thing sacrificed is tick marks. The same small Alco knob used
> in the Tellun and Encore panels fits here. Comparing the Tellun
> staggered pot spacing, I realized that it seems the main reason for
> staggering is to accommodate tick marks. Giving up tick marks allows a
> 1U MOTM panel to fit a combination of 6 pots and 8 jacks, or 8 pots and
> 6 jacks, with room for a couple of switches or LEDs in between. Using
> this format, I was able to pack a CGS 21 Super Psycho Modulation Source
> into a 1U panel. It has 8 pots, 7 toggle switches and 1 jack. (Looks a
> little tight at the bottom, but should work.) It's similar to the photo
> on the CGS site, but omitting two switches and the LEDs. LEDs might be
> squeezed in, too, but I'm not a really big fan of LEDs. I never built a
> Super Psycho Modulation source, because of all the panel real estate
> required in regular MOTM format.
>
> As a second example, I put a CGS 38 and CGS 52 both into 1U using this
> template. I made some others as well, such as a dual CGS 64 VCA and the
> CGS 77 Serge VCF.
>
> The jack placement in most of these designs can take the 3-Jack bracket
> from Bridechamber for mounting the PC boards. I haven't figured out yet
> how to mount the CGS 21 PC board on the panel with one jack.
>
> Richard Brewster
> http://pugix.com
>
> Sitting here under two feet of snow in central Virginia, USA.
>