200e

yes... so it's hard to do unintentionally...

On Tue, May 13, 2008 at 3:09 PM, don hassler <dlh30039@yahoo.com> wrote:

>   Mine doesn't quite self oscillate unless I feed one of the filters back
> into the input.
>
> --- On Tue, 5/13/08, ezra buchla <ezra.buchla@gmail.com<ezra.buchla%40gmail.com>>
> wrote:
>
> > From: ezra buchla <ezra.buchla@gmail.com <ezra.buchla%40gmail.com>>
> > Subject: Re: [200e] Some questions about the 291e
> > To: 200e@yahoogroups.com <200e%40yahoogroups.com>
> > Date: Tuesday, May 13, 2008, 4:33 PM
>
> > hello
> >
> > there are three filters in the 291e. each has its own
> > output; there is also
> > a summed output of all filters, each with its
> > "amplitude" applied. so
> > amplitude means exactly that; like a builtin vca for each
> > filter, except it
> > can actually apply some gain as well as attenuation. the CV
> > inputs for
> > amplitude feed the same circuits as the AM audio inputs.
> >
> > the 0 - 100 scale of "bandwidth" is an arbitrary
> > percentage. actually the
> > label "bandwidth" is misleading because this is
> > really a sort of Q or
> > resonance control (something like center freq / bandwidth,
> > except not really
> > linear). self-oscillation is certainly possible.
> >
> > i think the 291e is pretty essential. combined with a CV
> > source it is can be
> > like a small system unto itself; i often find myself
> > performing with a 291e
> > and 281 in a 2p powered boat...
> >
> > -eb
> >
> > On Tue, May 13, 2008 at 1:14 PM, jjsynth
> > <jjsynth@yahoo.com <jjsynth%40yahoo.com>> wrote:
> >
> > > hi,
> > >
> > > - what is meant by 'Amplitude'? Is this what
> > is called resonance on
> > > other filters? And if so, does the 291e self
> > oscillate?
> > > - What are the frequency ranges of the filter? The
> > frequency pot has a
> > > max value of 4k but the bandwidth pot has a max value
> > of 100 which I
> > > don't understand.
> > > - I would also be interested in hearing opinions about
> > the 291e. Is it
> > > an essential module for a small 200e configuration? It
> > seems so
> > > powerful and unique.
> > >
> > > thank you for your help!
> > >
> > > Jorg
> > >
> > >
> > >
> >
> >
> > [Non-text portions of this message have been removed]
>
>  
>


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