[Coco] Disto SC add-ons

[John Eric]

The output was composite and worked well with monitors such as the Amdek 300 and 300A. I will do some research and see what I can come up with. The board was actually one of Tony's first add-ons for the original SC - later versions of the display 80 had smooth scrolling and switchable between the CoCo video and the d80 so a single monitor could be used (this required a monitor driver in the coco for coco video). The MEB header doesn't have the video signals so there should be another smaller header somewhere or some other connections for that. A friend of my Uncle actually had one of these which he bought about 4 years before I was even born. I have such fond memories of the coco growing up and am glad I have some of the equipment to play around with these days. My uncle said if you can find older disto catalogs from 1985 - 1987 that Tony used to list the memory maps and functions in all of his catalogs. but by 1988 (a year before I was born :) had
 stopped this practice, but I can't say for sure myself - i'll take his word though. -JEric

p.s. there is a much better scan of the whole book if you check here:
ftp://maltedmedia.com/coco/VARIOUS/TUTORIALS/HARDWARE/FULLTURN/FullTurn.pdf
it prints out nicely as compared to the sections.


________________________________
From: Roger Taylor <operator at coco3.com>
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
Sent: Friday, January 2, 2009 5:54:05 PM
Subject: Re: [Coco] Disto SC add-ons

At 12:35 AM 1/2/2009, you wrote:
>Try this link Roger:
>
><ftp://maltedmedia.com/coco/VARIOUS/TUTORIALS/HARDWARE/FULLTURN/SECTIONS/FullTurn_P125_134.pdf>
>
>The article is called "Increasing Character Display".
>
>Darren


I suppose the article came before Tony actually built the SC version 
of that project.  I'm not sure the board is worth messing with right 
now considering I still don't know what header pins the video signals 
are on and exactly what type of monitor (obtainable today) would work 
with it.  It does sound ideal for giving 80 columns on a CoCo 1/2 
from OS-9, or giving dual 80-column displays on a CoCo 3.


-- 
Roger Taylor

http://www.wordofthedayonline.com


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