[Coco] 512KB SRAM upgrade

[Robert Gault]

Sylvain Rousseau wrote:

> Hello,
> 
> I just finished the design for a 512KB sram upgrade for Coco3.  I have only one Coco3 so I'm afraid to try it in it until I got a spare Coco3 or a spare Gime chip.
> 
> If it works well, I want to make the design public.  I can give the design to Mary to put on the Coco Nutz E-zine.
> 
> If someone can help me to get a spare Coco3 or a spare Gime chip, please let me know.
> 
> P.S. I already have a spare MC68B09EP.
> 
> Regards,
> 
> Sylvain
> Quebec
> Canada
> 
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Perhaps if you e-mail the schematic to someone like Mark Marlette, you 
would get a second opinion on whether the design would work if there 
were no mistakes in construction.