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
>a file has been uploaded to the Files area of the ModularSynthPanels
>group.
>
> File : /Richard Brewster Designs/dual-lfo-eg.fpd
> Uploaded by : pugix <pugix@...>
> Description : Updated 2 LFO 2 EG panel
>
>You can access this file at the URL
>
>http://groups.yahoo.com/group/ModularSynthPanels/files/Richard%20Brewster%20Designs/dual-lfo-eg.fpd
>
>To learn more about file sharing for your group, please visit
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>Regards,
>
>pugix <pugix@...>
>
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