Cgs synth

--- In cgs_synth@yahoogroups.com, sasami@h... wrote:
> I've just uploaded details of the matrix mixer to the CGS web site
> http://www.cgs.synth.net/
> Both the boards and the pots are available directly from me.
>
> Some of the out of stock boards have been replenished. More stock
is due in
> a couple of weeks.
>
> Ken
>
______________________________________________________________________
_
> Ken Stone sasami@h...
> Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
> Australian Miniature Horses & Ponies
<http://www.blaze.net.au/~sasami/>

>Hello Ken.......and all.
>
> I just took a look at your Matrix mixer and there is an error in the
>schematic. The bipolar/Unipolar switch/link is connected wrong. As
>shown, when the switch is in the Unipolar position Pin 2 of the
>output op-amp is shorted to ground and you'd get no output. In
>reality the common pin of the switch should be grounded and the pin
>going to pin 2 of the op-amp should become the Unipolar position.
>
> A simple mistake. Otherwise a handy little circuit.
>
>Keep up the good work Ken.
>
>Dean.