--- In Doepfer_a100@yahoogroups.com , Bakis Sirros
<synth_freak_2000@y...> wrote:

>
> --- Dieter Doepfer <hardware@d...> wrote:
>
> > From: "Dieter Doepfer" <hardware@d...>
> > To: "Bakis Sirros" <synth_freak_2000@y...>
> > Subject: AW: VC resonance
> > Date: Mon, 30 Aug 2004 18:05:50 +0200
> >
> > > cool idea with the clipping controls,
> > > but it would be very nice if we could have
> > > vc of resonance also. this is one feature
> > > which i miss badly on the orinigal and also
> > > on the a-solutions-clone.
> > >
> > > would vc of resonance be possible
> > >
> > > best wishes
> > >
> > > ingo
> > >
> > >
> > >
> > > Excellent remark Ingo. CV control of resonance is
> > huge bonus on
> > > modules that
> > > have extreme resonance response, and
> > self-oscillate as well. (OK,
> > > I will not
> > > start crying about A-102 revision again...:-)
> > >
> > > Regards
> > >
> > > Zoran
> >
> > VC resonance is essentially nothing but an
> > additional VCA. In principle it
> > is no problem to add VC resonance to almost every
> > VCF by adding a VCA. In
> > any case we will add an external feedback input (as
> > for the A-108) that will
> > enable VC resonance with an external VCA. I'm not
> > sure if we will add VC
> > resonance to the A-106. It will increase the price
> > by about 20 Euros and
> > enlarge the front panel. As the asymmetrical
> > limiting controls are related
> > very closely to the resonance and input level three
> > more VCAs with all
> > controls (offset, CV input, CV attenuator) would be
> > necessary. From my point
> > for the A-106 VC resonance without VC input level
> > and VC pos/neg limiting
> > would not make sense (leading to 2 additional VCAs
> > and 2 vactrols with all
> > controls). Of course possible but very expensive.
> > From my point of view the
> > better solution is to leave it to the user if he
> > want to have voltage
> > control of these parameters. It would be no problem
> > to add corresponding
> > inserts (as for the A-108) resp. ext. vactrol inputs
> > (for the limiting
> > features variable resistors are required, this is
> > not possible with a VCA
> > but only a vactrol).
> >
> > We also will add some general notes to the DIY
> > document how to add VC
> > resonance to other filters by adding insert sockets
> > in the resonance
> > feedback loop (with examples for those filter
> > modules that are not yet
> > equipped with VC resonance).

good news about the feedback input jack.
for me this is a very good solution,
even better than vc of resonance, as
it gives more possibilities for
mind-boggling patches :-)

also good news about the diy-page, very well.

best wishes

ingo