[Coco] Upgrading a CoCo 1

[Neil Cherry]

On 1/16/19 5:30 PM, Bruce W. Calkins wrote:
> "D" board.  Clip 8 capacitors, add wiring to use "extra" gates on the 74LS02, cut some 
> traces and other additional wiring.  Of the CoCo 1s, the "D" board is the most 
> complicated.  Given the relative rarity of unmodified "D" boards I would be reluctant to 
> upgrade it.

Rats, now I'm torn as to what to do. I've got a CoCo 2 so I don't need to upgrade it.
But I do need to find a new top. Looks like this baby was at the bottom of the large,
heavy pile. It was in the junk pile and a slight donation ($10) let me walk away with
it. I knew it would go unloved otherwise so I took it home. It's keeping company with
my other Vintage (Atari A8s, bunch of other 6809, a Dage MC-3 (1802), PTK 68000 ... ).

Okay, I can leave the CoCo 1 stock. My CoCo 3 is going to get a memory
upgrade for NitrOS9 LII (LIII ?) and a 6309. I might give the CoCo 2
to the museum.

-- 
Linux Home Automation         Neil Cherry       ncherry at linuxha.com
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