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Discussion about the Korg PolySix synthesizer

Index last updated: 2026-04-09 23:04 UTC

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Re: [PolySix] VCF cutoff quirkiness

2004-09-14 by dizz@elitemofo.com

Thanks Crow,

  Yep, I'm thinking bad pot too. I'll try the measurements again. Can you tell
me where to get a replacement that's close to the original? I've heard you
mention jameco.com  Looks like I need a 10K Ohm -5V to +5V linear type correct?

regards,

dizz

Quoting The Old Crow <oldcrow@oldcrows.net>:

>
>   Hm, that sounds like a pot with a cracked element.  It will have to be
> replaced, unfortunately.  You need to measure from the middle pot pin to
> ground to see the -5 to +5 volts.
>
> Crow
> /**/
>
> On Tue, 14 Sep 2004 dizz@elitemofo.com wrote:
>
> > Crow,
> >
> >   After cleaning the pot out with some contact cleaner the problem has
> > improved by appr. 50%. I believe it just hadn't been used in a while.
> >   I finally got a decent DMM and measured the voltage on the pot.
> > However, I don't see any negative voltage unless I reverse the leads. It
> > reads 0V at minimum and sweeps up to 9.92V at the max rotation. In the
> > trouble spot, the meter reads "overload" briefly and quickly continues
> > measuring correctly after resuming the rotation. Any suggestions would
> > be greatly appreciated!
> >
> > dizz
>
>
>
>
> PolySix "Digiest" Page: http://www.acc.umu.se/~amber/Poly6
> Yahoo! Groups Links
>
>
>
>
>
>

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