Doepfer

I don't own a A108 but I'm quite sure for an "ordinary 24db filter" 
you will not use the Feedback In. Audio In and Audio Out plus the CV 
Ins that's it. The Feedback In is a special feature for "non-
ordinary" stuff. Regards, Ingo

--- In Doepfer_a100@yahoogroups.com, "marrtin606" <mvhecke@...> 
wrote:
>
> Hi,
> 
> 
> This is my first post here - I've been lurking around for a couple 
of
> weeks, bascially since i got my 4-row a100 setup. I followed an
> earlier advice of Dieter and got one of those cheap voltcraft 
scopes,
> which has helped me a lot for understanding already most of the 
more
> subtle features and quirks of the system.
> 
> I was wondering if anyone of you has been succesfull to get the 
a108
> to work as an 'ordinary' 24 db filter with '24db' resonance. When I
> hook up the 24db output to the feedback input, I can't get even 
close
> to self-oscillation. Inserting a polarizing amp (138c, so as to be
> able to change the phase) doesn't really do the job, but can get 
the
> 108 into some evil low freq oscillations when polarity is reversed.
> Great fun all, but why can't I get resonance in 24db mode? I find 
the
> 48db resonance ok, but was curious to be able to get other, 
somewhat
> milder resonance behaviors.
> 
> Cheers, Martin
>