> Dieter-
> I planned at one time to make a matrix with !/4" switchcraft High
> density stereo jacks (I worked at a company that used them and I could
> get them cheap - and I had a bunch of SEM modules). The plan was to
> run the output lines on the tip's and the input lines on the Rings -
> ground as ground. That way you could put trimmers in the plugs and use
> them to have different levels at different patch points. This setup
> also allowed any crosspoint to be used as insert jack to other
> external equipment when a stereo plug "Y-cord" was used. This way you
> could insert a VCA at a crosspoint for instance - very handy. if a
> mono plug is inserted all the way it would work as a patch out (but
> would short that row input - not a bad thing for a SEM) but if only
> inserted half way would act as a input on that buss. I would also
> suggest bringing the rows/columns out to a multi-pin header in the pcb
> so that multiple matrixes could be chained together. Can't wait to see
> this module. How wide a panel is planned

The prototype pc board was designed for both versions: mono or stereo
sockets. The prototype has bees assembled with monophonic sockets as we had
no stereo sockets and plugs available (80 pcs. required). The outputs are
the tips, the inputs the rings. But it's easy to change to stereo sockets
and plugs in the production if the users prefer this version. We also have
expander connectors available to connect 2 or 4 modules to obtain a 16x8 or
16x16 matrix.

> BTW loved the NAMM video. A short video on each just-released module
> would be a great selling tool. No expensive production needed - the
> camera aimed at the module and a hand and voice added.

This is one of many tasks in our to-do list (in addition to sound examples
and photographs for each module).

Best wishes
Dieter Doepfer