Pots and switches with Longer Thread

Siegfried Meier · Sep 26, 2007

Hey guys,

I'm doing a dual 1176 UA style with the silver panel in the back and the black outer panel. The original pots and switches that are in the BOM do not have a thread that extends long enough for a nut to grab on. I've contacted Mouser and they tell me that they don't make any longer threads, but somehow this just can't be true. Any suggestions?

Thanks,
Sig

Stagefright13 · Sep 26, 2007

I was able to get regular Alphas to bolt up thru both plates. I didn't use any washers and there was JUST enough thread to get them nice and tight. Just be careful you don't strip them tho...
Your case may be different than mine. But I doo have the backing plate behind the faceplate.

Siegfried Meier · Sep 26, 2007

No, it's just a bit too thick between the 2 panels. I can't seem to find anything at Mouser at all that goes beyond the standard 24mm pot. Wonder what else I could do here.

Thanks,
Sig

Mailliw · Sep 26, 2007

Can you drill a big hole in the plate behind so the entire pot fits up against the front plate?

emrr · Sep 26, 2007

This is a constant problem restoring old gear also, and I've not found a good solution. Pots used to have a half inch of thread and an inch and a half of shaft that you could cut down if needed.

nrgrecording · Sep 27, 2007

As long as you have two panels... (one panels whith covers the other panel) you could try this...
A pot mounting plate (incl. spacer bolts of course... not shown in the drawing). Maybe you have to use an extension for the pot shaft....

Just an idea.... it needs some works of course. But you could place the 6 pots on one panel... so you only need two more panels which are easy to make.

Frank.

nrgrecording · Sep 27, 2007

http://www.nrgrecording.de/temporary/dual_pot_panel.fpd

walter · Sep 27, 2007

[quote author="Mailliw"]Can you drill a big hole in the plate behind so the entire pot fits up against the front plate?[/quote] When I get a control panel made by a trophy plaque engraver, I have the panel holes bigger. The threaded shaft isn't long enough, I can tighten the nuts without warping the panel, the knobs cover the hole.

sodderboy · Sep 30, 2007

I was looking through the new Antique Electronics catalog and remembered this thread. They have some values with long bushings, perhaps you can design around the values.
tubesandmore.com

Mike

Pots and switches with Longer Thread

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