[Coco] Design files for 512k or more CoCo3 upgrade

[Gene Heskett]

On Sunday 30 November 2014 00:13:52 Zippster did opine
And Gene did reply:
> Hi everyone,
> 
> Are there any design files available that anyone knows of for a
> good CoCo 3 memory upgrade that are ready to go?
> Gerbers, Eagle or KiCad files or the like?
> 
> I’ve got a stock CoCo 3 that needs some more memory, and
> I think I’d like to build one rather than buy one.
> 
> What’s out there?
> 
> From what I’ve picked up, it seems like the CoCo1 and 2 are
> limited to 64k maximum.  Is this true, or has anyone ever made larger
> memory upgrades?
> 
> Thanks,
> 
> - Ed

There was, I faintly recall, a 256k made for the coco1 & 2's, called the 
Bankster or some such.  I used to see it advertised in the Rainbow.  But 
that is about it that I can recall now.

Has anyone got one and is using it, testimony please?

Cheers, Gene Heskett
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