Modular Synth Panels

I finally finished building the combination dual Little LFO, dual Little 
EG module.  It came out quite well.  I plan to take photos and post 
them.  The most unusual aspect of the panel design is the placement of 
LEDs and switches to the lower right corner of each pot.  These are not 
labelled on the panel with the benefit that you can choose different 
placements.  Each module (LFO or EG) has two pots, one switch and one 
LED.  On the EG the switch selects AD/AR output.  I had planned to use 
the LFO switch for TRI/SQU output selection, but changed it to a range 
switch.

This panel idea lets you have 4 of these modules in a 2U panel.  I gave 
up the SQU output on the LFO and the separate AD and AR outputs on the EG.

With the Little LFOs on the top there is no clearance problem with 
mounting rails, because of the smaller board size.  If the EG boards 
were put on top, there would be a clearance problem and the boards would 
have to be milled down a tad.  If you put switches in the lowest 
positions (which I did), they have to operate side-to-side and there is 
a tight fit next to the jack.  The switch has to be installed before the 
jack.  It's not an optimal location for switches, so near to the jacks, 
but it works and I opted over putting LEDs there, so low on the panel.

The extra PC pads for power jumpering makes it easy to daisy-chain power 
across all four modules, so you only need one power connector.

The only problem with my original panel FPD is that it had 3/8" holes 
for the pots.  The Oakley pots have a slightly larger diameter.  I 
updated the FPD file for 13/32" hole size, which is what I drilled out to.

If you are planning to get Little LFOs, check out my panel design.  You 
can edit it for four of them.  You can choose SYNC inputs vs. SQU 
outputs, maybe having two of each. You only need to edit labels.  The 
same could be done for 4 EGs, with the caveat about top clearance.

-Richard Brewster

ModularSynthPanels@yahoogroups.com wrote:

>Hello,
>
>This email message is a notification to let you know that
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>  File        : /Richard Brewster Designs/dual-lfo-eg.fpd 
>  Uploaded by : pugix <pugix@...> 
>  Description : Updated 2 LFO 2 EG panel 
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