Anton,

the six taps of the BBD are prescribed by the circuit used (MN3011) and
cannot be changed. It's the only BBD chip with several taps I know.

Best wishes
Dieter Doepfer

> -----Ursprüngliche Nachricht-----
> Von: Doepfer_a100@yahoogroups.com
> [mailto: Doepfer_a100@yahoogroups.com ]Im Auftrag von Anton Coops
> Gesendet: Samstag, 9. September 2006 10:49
> An: Doepfer_a100@yahoogroups.com
> Betreff: Re: AW: 1 Re: New impressive Doepfer modules
> revealed!!!
>
>
> Hello Mr. Doepfer,
>
> Congratulations on two more winning designs.
>
> I was wondering: what is the reason behind the non-linear values of
> the various BBD-taps Is this because of the properties of the BBD
> Like for instance 3328/396 = 8.4
>
> Greetings,
>
> Anton
>
>
> On 8 Sep 2006, at 9:58, hardware@... wrote:
>
> > Ingo,
> >
> > thank you for this clarification. Yes, the circuit used in the
> new VCO has a
> > VCF and VCA available and this may explain some of the unusual
> functions of
> > the module. Of course we could omit these sections to obtain a
> "pure" VCO
> > but this does not make sense from my point of view. And don't forget the
> > linear FM of the filter. This is not possible with any other
> filter of the
> > A-100 (I don't know if there are other filters with linear FM
> available).
> > And a VCA for AM applications is not a bad idea too. So you
> could treat the
> > VCF and VCA as a (nearly) free extra.
> >
> > Best wishes
> > Dieter Doepfer
> >
> > > -----Ursprüngliche Nachricht-----
> > > Von: Doepfer_a100@yahoogroups.com
> > > [mailto: Doepfer_a100@yahoogroups.com ]Im Auftrag von selfoscillate
> > > Gesendet: Freitag, 8. September 2006 08:29
> > > An: Doepfer_a100@yahoogroups.com
> > > Betreff: 1 Re: New impressive Doepfer modules revealed!!!
> > >
> > >
> > >
> > > hello guys,
> > >
> > > just to clear some things out on the new a111/2 dynamic vco:
> > >
> > > the module uses a special ic for it's functions.
> > > this ic features not only the vco, but it has also
> > > the vcf, the vca and the panning unit built-in.
> > > since all the parts are already there, they are brought
> > > out to the front panel. the vcf in the a111/2 is similar
> > > to the vcf in the a109, but it is not the same, as the vcf
> > > in the a111/2 can be modulated with the triangle core
> > > waveform in a linear manner. in other words, you can do
> > > linear fm on that vcf and you cannot do this with any other
> > > a100 filter (they all have exponential fm). the built-in
> > > panning unit is basically the same as in the a109, but
> > > again you will use it differently in the a111/2.
> > > in the a111/2 you will use it to create new waveforms.
> > > so after all the a111/2 does not intentionally replicate
> > > some of the a109 features, it just has all the stuff
> > > on-board which is needed for this new vco design,
> > > and it offers the vcf because it is part of the ic
> > > and has that linear-fm-feature.
> > >
> > > naturally it is possible to use the a111/2 as an almost
> > > complete synth voice (also a module some people have asked for),
> > > but that was not what dieter wanted to achieve in the first
> > > place. the module should more be seen as a new vco approach
> > > which can "alternatively" be used as a synth voice.
> > >
> > > the module also shouldn't be compared with a buchla 259,
> > > as it uses completely different techniques (except that
> > > both have a triangle vco core) and offers completely
> > > different features. i can understand the expectations and
> > > yes, the 259 is gorgeous, but it's really a different
> > > pair of shoes.
> > >
> > > best wishes
> > >
> > > ingo
> > >
> > >
> > >
> > > --- In Doepfer_a100@yahoogroups.com , Axel Jungkunst <phaedra@...>
> > > wrote:
> > > >
> > > > Just my opinion! I'm a bit surprised of the doubling of the 109-
> > > features
> > > > into a new module.
> > > > The 259 features or something in this way would have been that I
> > > had
> > > > expected!
> > > > All the best
> > > > Axel
> > > >
> > > > Jay schrieb:
> > > > >
> > > > > Bakis Sirros wrote:
> > > > > > hello jay,
> > > > > > for standard stuff the a109 is ok.
> > > > > > the a111-2 is for more wierd stuff though.
> > > > > > best regards,
> > > > > > Bakis.
> > > > >
> > > > > I understand that the new oscillator has different features and
> > > how they
> > > > > can be used. I'm just saying that the pan/filter/vca part seems
> > > quite
> > > > > redundant in a modular synthesizer. That space could better be
> > > used for
> > > > > a second modulation oscillator like a Buchla 259.
> > > > >
> > > > >
> > > >
> > > >
> > > >
> > > > [Non-text portions of this message have been removed]
> > > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > Yahoo! Groups Links
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