Joost,

yes, we had very bad experiences with sources offered by hkinventory like
counterfeit parts, no availability of the offered parts (after the money has
been transfered !) and many more. We will try no more to get parts from
them.

Best wishes
Dieter Doepfer

> -----Ursprüngliche Nachricht-----
> Von: Doepfer_a100@yahoogroups.com
> [mailto:Doepfer_a100@yahoogroups.com]Im Auftrag von levka0
> Gesendet: Montag, 4. September 2006 21:55
> An: Doepfer_a100@yahoogroups.com
> Betreff: 1 MS-50 VCF & CA 3019 (WAS: Re: OT: Korg MS20
> filter study)
>
>
> > But we have not been lazy during the summer ....
> Nobody here has ever only thought that about you ;-)
>
>
> Synthfool.com appears to have some stock of CA3019 but quite expensive
> ($48)
>
> Als, I found that
> http://www.hkinventory.com/public/Home.asp
> appears to report several sources.
>
> However, if I remember well, my last suggestion (for mn3005) was not a
> big succes (to put it mildly), so do not take me for an expert.
>
> Best regards,
> Joost
>
>
>
>
>
> --- In Doepfer_a100@yahoogroups.com, <hardware@...> wrote:
> >
> > Joost,
> >
> > the prototype of this filter is already working. But as we have only
> a very
> > small quantity of the special diode arrays CA3019 available (~ 20
> pcs only)
> > and could not find more of these parts a production of the "A-106-2"
> does
> > not make sense at the moment.
> >
> > But we have not been lazy during the summer and I will reveal some
> secrets
> > during the next 1-2 weeks. I'm about to prepare the front panel
> suggestions,
> > block diagrams and sound examples.
> >
> > Best wishes
> > Dieter Doepfer
> >
> > > -----Ursprüngliche Nachricht-----
> > > Von: Doepfer_a100@yahoogroups.com
> > > [mailto:Doepfer_a100@yahoogroups.com]Im Auftrag von levka0
> > > Gesendet: Freitag, 1. September 2006 14:24
> > > An: Doepfer_a100@yahoogroups.com
> > > Betreff: 1 Re: OT: Korg MS20 filter study
> > >
> > >
> > > Dear Mr. Doepfer,
> > >
> > > A possible 2nd version of the A-106-1 sounds indeed quite interesting.
> > >
> > > If I remember well, you once mentioned that you might rebuild the
> > > MS-50 diode VCF. Is this still on your mind
> > > (of course after the work on all other new modules has been
> finalized).
> > >
> > > Kind regards,
> > > Joost
> > >
> > >
> > > --- In Doepfer_a100@yahoogroups.com, <hardware@> wrote:
> > > >
> > > > Tim,
> > > >
> > > > excellent work - though I did not yet read and understand
> > > everything.
> > > >
> > > > To speak the truth the A-106-1 was designed more by trial and
> > > error without
> > > > that terrific theoretical background.
> > > >
> > > > If the results of the second version of the MS20 filter are
> > > promising we may
> > > > consider an A-106-2 provided that you give us the permission and no
> > > > copyrights are affected. Even if you find out an improvement of
> > > the A-106-1
> > > > of course I'm interested.
> > > >
> > > > Best wishes
> > > > Dieter Doepfer
> > > >
> > > > > -----Ursprüngliche Nachricht-----
> > > > > Von: Doepfer_a100@yahoogroups.com
> > > > > [mailto:Doepfer_a100@yahoogroups.com]Im Auftrag von Tim
> > > Stinchcombe
> > > > > Gesendet: Mittwoch, 30. August 2006 23:06
> > > > > An: Doepfer_a100@yahoogroups.com
> > > > > Betreff: 1 OT: Korg MS20 filter study
> > > > >
> > > > >
> > > > > Hi list,
> > > > >
> > > > > A little OT I guess, but there is a connection through the A-106
> > > > > (which partly triggered my interest in this work in the first
> > > > > place!). I have spent a lot of time looking at the differences
> > > > > between the early and later MS20 filters, and have written
> > > a 'report':
> > > > >
> > > > > http://mysite.wanadoo-
> > > members.co.uk/tstinchcombe/synth/MS20_study.pdf
> > > > >
> > > > > File is about 2.25megs, with much mathematics, but some may find
> > > > > something of interest in it.
> > > > >
> > > > > Next I plan to build examples of both filters and see how the
> > > reality
> > > > > ties in with the analysis (and one outcome will be to see if I
> > > > > can 'tame' the resonance response in the A-106, which is rather
> > > too
> > > > > much 'all or nothing' for my tastes).
> > > > >
> > > > > Regards,
> > > > > Tim
> > > > > __________________________________________________________
> > > > > Tim Stinchcombe
> > > > >
> > > > > Cheltenham, Glos, UK
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > Yahoo! Groups Links
> > > > >
> > > > >
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> > >
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> > >
> > >
> > >
> > >
> > >
> > > Yahoo! Groups Links
> > >
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