Discussion about the Korg PolySix synthesizer

The link worked for me. And thanks for posting this - I'm very excited
about this mod. I was about to do it last week, but when I fired up my
PolySix for the first time in months, I found that it no longer wants to
produce sound . . . ah, vintage.

But seriously, as soon as I have time to trouble shoot this issue I'll be
performing this mod.

Cheers,
James


On Tue, Aug 13, 2013 at 8:43 PM, chipaudette <chipaudette@yahoo.com> wrote:

> **
>
>
>
> I decided to make my "non-destructive" modification a bit more
>
> permanent. I removed the clip lead and, in its place, I soldered in a
> jumper wire. Now the synth is more robust and will better tolerate the
> rigors of travel. If I wish to un-do the mod, it's still pretty easy to
> reverse.
> (I'm trying the new "Rich Text Format" interface for the Yahoo Groups
> "Post Message" page. Let's see if it makes the link work
> correctly...)http://synthhacker.blogspot.com/2013/08/polysix-permanently\
> -removing-post.html<http://synthhacker.blogspot.com/2013/08/polysix-permanently-removing-post.html>
>
>
> <http://synthhacker.blogspot.com/2013/08/polysix-permanently-removing-po\
> st.html<http://synthhacker.blogspot.com/2013/08/polysix-permanently-removing-post.html>
> >
> I hope that you're all having a good Summer!
> Chip
>
> --- In PolySix@yahoogroups.com, "chipaudette" wrote:
> >
> >
> > Here's a full post showing how the mod can be done. I give schematics
> and some pics and the basic audio demo that was linked earlier:
> >
> >
> http://synthhacker.blogspot.com/2013/07/polysix-bypassing-post-effects-v\
> cf.html<http://synthhacker.blogspot.com/2013/07/polysix-bypassing-post-effects-vcf.html>
>
> >
> > At the end, I also analyze the background noise in each condition. I
> found that defeating the post-effects VCF by forcing open the filter
> actually *lowers* the noise from 100-1000Hz compared to the stock synth.
> But, it also exposes more of the synth's noise above 2 kHz, as expected.
> >
> > By removing the VCF (by pulling U15 and jumpering to R168), though,
> you get the lower noise value in the 100-1000Hz range *and* you get only
> a very slight increased in noise above 2kHz. Win-Win!
> >
> > Chip
> >
> > --- In PolySix@yahoogroups.com, "chipaudette" chipaudette@ wrote:
> > >
> > >
> > > Here's a sound demo of the mod that we've been discussing. It's a
> very basic demo, but you'll definitely get the idea of how
> defeating/removing this VCF really opens up the sound...
> > >
> > > https://soundcloud.com/synthhacker/korg-polysix-sound-of-removing
> > >
> > > Pretty dramaitc, eh? I call this one "The Snappy Mod". And,
> because it can be done non-destructively, I highly recommend it!
> > >
> > > A full post with schematics, pics, and graphs will come later.
> > >
> > > Enjoy!
> > >
> > > Chip
> > >
> >
>
> [Non-text portions of this message have been removed]
>
>  
>



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