[Coco] Artifacting on LCD?

LinuxRules Linux-Rules at austin.rr.com
Thu Apr 9 08:46:21 EDT 2009

Allen Huffman wrote:

> John,


> Do you recall the Mot evaluation board that the CoCo design was based

> on? I think I read the reference platform was called the "Color Bug"

> or something like that?

I wasn't aware that the coco was based on a eval board design.
My memory is that the Coco design (MOT part of the project) was managed
by a marketing Group in Phoenix working closely with Tandy.

The only VDG eval board that I am aware of was the "MicroChroma kit" board.
That came out of Austin. It was a Kit of major parts with a PCB. The PCB
designed by the applications group (Tim Ahrens, Jack Brown, and Hunter
I wrote the TVBUG monitor for it as a "after hours" project. (About 2/3
of the
code for TVBUG, I lifted from MIKBUG with the help of Mike Wiles - the
of MIKBUG.....)

As an aside, does anyone know what a MicroChroma kit would be worth today?
(I still have one - unassembled - in the back of a closet somewhere.
Payment for
a "G-job" project..(grin).........)

JohnDumas at austin.rr.com


> Later in life, when I went to work for Microware, I became aware of

> Motorola reference boards and just what they were. I wonder if we

> could ever track down one of the original 6809/VDG reference boards.


> -- Allen



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