[sdiy] I need your knob expertise

Mattias Rickardsson mr at analogue.org
Fri Oct 9 00:23:52 CEST 2015


It seems that Alcoswitch are not the only ones selling these knob
mouldings, so someone else might sell them with smaller shaft fittings
unless Alcoswitch already do.

Otherwise, +1 for the shaft reducers, I've used them together with Davies
1900 clone knobs when restoring an old Serge system that had lost several
of its knobs on its petite shafts.

/Mr
Den 8 okt 2015 11:49 em skrev "Paul Schreiber" <synth1 at airmail.net>:

> PKES (S = skirted)
>
> Paul S.
>
> --- grant at musictechnologiesgroup.com wrote:
>
> From: MTG <grant at musictechnologiesgroup.com>
> To: Pete Hartman <pete.hartman at gmail.com>
> Cc: synthdiy diy <synth-diy at dropmix.xs4all.nl>
> Subject: Re: [sdiy] I need your knob expertise
> Date: Thu, 08 Oct 2015 14:42:19 -0700
>
> Those look like they could be the Alcoswitch PKE series.
>
> http://www.jameco.com/Jameco/Products/ProdDS/551030.pdf
>
>
>
> On 10/8/2015 12:03 PM, Pete Hartman wrote:
> > I have these for exactly that purpose
> >
> > http://elmegil.dynathome.net/~elmegil/IMG_20151008_135300299.jpg
> > http://elmegil.dynathome.net/~elmegil/IMG_20151008_135242515.jpg
> >
> > 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 gear....
> >
> > Thanks
> >
> > Pete
> >
> > On Thu, Oct 8, 2015 at 1:47 PM, MTG <grant at musictechnologiesgroup.com
> > <mailto:grant at musictechnologiesgroup.com>> wrote:
> >
> >     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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> >
> >
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