diy GM synth

[Francois Dion]

Gene Zumchak wrote:
> 
> Guys,
> 
>     These look like part numbers from an outfit called Crystal Semiconductor Corp
> in Austen, TX.  Maybe somebody can find there web site and get some more info.  I
> recall they had some interesting music oriented chips.

For the past 5 years they've had the complete working designs to go with these
chips in their catalog.

Ciao,
Francois Dion (francois at hyperreal.org)