[sdiy] Source for dual Concentric shaft pots?

[JH.]

Rean collet knobs (like the ones I've used for my JH-720) are made to work 
with concentric pots: the collets of the bigger knobs have a hole for a 
smaller shaft to go thru. Then you don't need a cap for the knob: A smaller 
knob, which is mounted on the thinner shaft, sits where the cap of the 
bigger knob would have been. (I never built something with concentric pots, 
but I held two different sized of these knobs together, and it's amazing how 
it fits.)

Here you see some larger Rean knobs without cap - easy to imagine how the 
samller ones would fit on top of them:
http://jhaible.heim.at/tonline_stuff/jh_720_in_progress_1.jpg

I guess th esame thing works for "classic" collet knobs like Elma.

JH.


----- Original Message ----- 
From: "Paul Perry" <pfperry at melbpc.org.au>
To: <Synth-diy at dropmix.xs4all.nl>
Sent: Monday, October 15, 2007 3:18 AM
Subject: RE: [sdiy] Source for dual Concentric shaft pots?




-----Original Message-----
It's also possible to get dual concentric pots from Alps (special order,
couple of thousand minimum). In the Alps case, it wasn't the price that
stopped me - whatever it was - but the fact that I never managed to find
suitable (or indeed ANY) knobs.

Are there knobs for these other pots?

Paul perry (Frostwave) Melbourne Australia

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