[sdiy] Interesting matrix

[steve thomas]

  Hi Paul/all,
                    well I would guess it is either using a regular AD75019
   chip with additional buffers or the more expensive (250 quid?)  version
with internal buffering in the
  chip. I have  been developing a 16x16 matrix patching unit based on the
75019,
  to be used for digital control of EMS synthi's and also modular
synthesizers..called the 'Digitrix' with Peter Kember
  (aka sonic boom).  I think peter posted an email to AH last month about
it.
   Ours has 320x240 backlit lcd display of the patching matrix; 4x4 keypad
   control; ability to store /load patches, the ability to have user defined
on-screen matrices with naming
  of each row/column; naming of patches. We are also working on a midi
implementation with lots of possibilities
   beyond patch loading. We are setting up some webpages with pics of the
prototype, which should
  be online soon.
   cheers
    steve thomas

   Synth-DIY pages:-
> >  http://monopole.ph.qmw.ac.uk/~thomas/synthdiy/index.htm
> > > ----- Original Message -----
> > > From: Paul Maddox <P.Maddox at signal.qinetiq.com>
> > > To: <synth-diy at dropmix.xs4all.nl>
> > > Sent: Tuesday, October 22, 2002 9:38 AM
> > > Subject: [sdiy] Interesting matrix
> > >
> > >
> > > > Dear all,
> > > >
> > > >   Anyone seen this?
> > > > http://www.users.globalnet.co.uk/~concuss/
> > > >
> > > >   Look just below the "red square" synth, It claims to be an
analogue
> > > patch
> > > > matrix.
> > > > Having looked at this myself several times Im intrigued to know
which
> > > matrix
> > > > chip has been used.
> > > > Remember the discussions about Ron and such for the matrix
'switchs',
> > most
> > > > of these are 100ohms or less (more commonly 50ohms) and might
present
> > > > problems when trying to sum several CVs to one output, so did this
guy
> > > crack
> > > > it?
> > > >
> > > > Paul (tempted to buy one to play with)
> > > >
> > > >
> > >
> >
>