[sdiy] I need your knob expertise

Pete Hartman pete.hartman at gmail.com
Thu Oct 8 21:03:21 CEST 2015

I have these for exactly that purpose


Unfortunately they're in an unmarked bag, and I got them a long time ago,
so I couldn't tell you part numbers or suppliers.

If I needed more I'd probably search mouser for knob brass insert, limit to
1/8" rather than 1/4" or common equivalents (e.g. 6mm) and see what came
up.  These particular ones also use a hex wrench for adjusting the set
screw rather than a standard jeweler's screwdriver.

These have the advantage of matching 99% of the rest of the knobs on my 5U



On Thu, Oct 8, 2015 at 1:47 PM, MTG <grant at musictechnologiesgroup.com>

> I'm looking for a relatively low profile knob for a rotary switch. 1/8"
> diameter shaft. The switch does seems to require some force to turn, so
> knob diameter should not be tiny. I don't know for sure yet, but probably
> >= 1/2" in diameter and about the same in height? It's for a retrofit mod
> that will appear on the outside of some NOT rare vintage gear.
> Curiously I have zero knob stock,  =:-o  so rather than just buy a pile of
> stuff to test off eBay, I thought I should ask here first.
> I'm using a Grayhill 4 position rotary switch ($$$) because it seems to be
> the only thing I can find that will fit in small places. Anyway it has a
> 1/8" shaft with "a bit" of a flat spot.
> http://www.mouser.com/ds/2/626/Rotary_56-335299.pdf
> GB
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