[sdiy] Electronotes Matrix Mixer?

[Theo]

Don't have any EN so I shouldn't know.
Don't know what your application is.
But I made a matrix mixer as a matrix (patch) panel alternative.
Center = zero, left = inverse, right = normal signal.
8 ins and 10 outs already gives 80 pots and found it a bit too small.

Schematic is quite simple, just 8 input buffers & invertors 10 opamp summers
few resistors and a whole bunch of 100k potis.

Theo


From: Fahl, Romeo <RFahl at extensis.com>

> Hello,
>
> I once came across a matrix mixer project in Electronotes.  I haven't had
> any luck going through the various issues to find it, nor is it listed in
> the online index for EN.  Does anyone happen to know which issue it was
in?
>
> Romeo