[Coco] Q on the extra chip socket the 2 meg kit uses

[Gene Heskett]

On Wednesday 09 July 2014 14:46:10 Brian Goers did opine
And Gene did reply:
> On 7/9/2014 10:00 AM, Gene Heskett wrote:
> > Greetings;
> > 
> > My coco3 has died again.  No clue if its oxidized gime or poor
> > contact in the cpu socket.
> > 
> > That, in addition to my needing to design & make a new bit-banger
> > path, somewhere in the salt to 6821/22 is a blown chip so my DW is
> > DOA.  That I probably am responsible for as internal diagrams on the
> > SALT chip are lost in the sands of time. The problem?  I fed it with
> > the full 12 v + & - from my old XT PSU that runs everything, under
> > normal use, running on 8 volts in the OEM design, a feedback loop in
> > the DW from a miss-configure would not heat things up and destroy
> > something, but on a full +-12volts, the salt and whatever got too
> > hot and expired. New salt didn't fix it, so I need to start with a
> > fresh 6821/22 and make a MAX-232 like interface for the bit-banger. 
> > Once thats done, the salt chip can be removed.  Thats a job for
> > eagle I think.
> 
> I know I have several 6821 and maybe a 6822. If you wish I'll mail one
> out to you.
> Just let me know.

Thanks Brian.  ATM, I have no clue which is in mine.  I'll keep that in 
mind though, thanks.

Cheers, Gene Heskett
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