[sdiy] Retractable mini pots

[cheater cheater]

Thought you might like this picture of the back of the front panel.

Maybe you can ask the author for more photos of the guts to help your DIY
project.

https://www.facebook.com/bernielandmusic/posts/pfbid0291KDPMXeujGyiUaLiUrUNPMdWhsdwEvkfuKLPXP4Gnrr2o4nNRYKGsKsxMnTLJotl

On Sun, Aug 23, 2026 at 9:57 PM Dixon, David via Synth-diy <
synth-diy at synth-diy.org> wrote:

> That’s stupid (two standard heights, requiring breakaway PCBs with wired
> connections between them — no rational person would intentionally engineer
> such a thing).
>
> Also, after looking more closely at pictures of PS-3100 panels on the
> Internet (I’ve never seen one in real life), it now appears as if the
> “temperament adjust” pots just have little Davies-1900-style knobs.  I’m
> not sure exactly, but it looks as if they actually penetrate through the
> panel holes, with only about half of the knob protruding.  However, that
> doesn’t make much sense, and none of the pictures are terribly clear.  They
> could just be attached in the standard way to protruding pot shafts.
>
> Hence, I think I am just going to use Davies 1900 knobs on those pots, as
> I have a ton of those on hand.  Problem solved — moving on.
>
> On Aug 23, 2026, at 2:34 AM, Mike Bryant <mbryant at futurehorizons.com>
> wrote:
>
> [*CAUTION:* Non-UBC Email]
>
>    - My more immediate concern is figuring out a way to mount slide
>    potentiometers to the panel PCBs, given that they are mostly too short.
>    Why can’t they just make panel components to a standard depth (like
>    mini-toggle switches and pots)?  Why do they make it so hard to build
>    things easily?  That’s not the way I was taught to engineer things.
>
>
> There are actually two standard heights for most of these components.  If
> you want to use both with a flat front panel there is usually some wiring
> arrangement joining two parts of a PCB that snaps apart and then bends into
> position.
>
>
>
> ------------------------------
> *From:* Synth-diy <synth-diy-bounces at synth-diy.org> on behalf of Dixon,
> David via Synth-diy <synth-diy at synth-diy.org>
> *Sent:* 23 August 2026 03:46
> *To:* synth-diy <synth-diy at synth-diy.org>
> *Subject:* Re: [sdiy] Retractable mini pots
>
> Well, after reading all of your suggestions and having absolutely no luck
> finding anything suitable on the web, I have decided to just use regular
> old boring mini pots.  After all, I typically eschew fancy, fussy things in
> my electronics work.  The idea is to get something that works with a
> minimum of fuss and cost.
>
> If I do eventually find something, I can simply swap out the mini pots.  I
> am building the DS-3100 panel in a somewhat modular format, with “islands”
> of circuitry mounted directly onto the back of the panel.  Hence, it will
> be easy to change any of the “modules.”
>
> My more immediate concern is figuring out a way to mount slide
> potentiometers to the panel PCBs, given that they are mostly too short.
> Why can’t they just make panel components to a standard depth (like
> mini-toggle switches and pots)?  Why do they make it so hard to build
> things easily?  That’s not the way I was taught to engineer things.
>
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