[Coco] Using Roy's vga adapter with other computers

Bob Devries devries.bob at gmail.com
Sat Oct 24 23:05:40 EDT 2009

Hi, Aaron.

Isn't the Commodore 128's RGB port a digital one? That is, RGB-I instead of 
Analog RGB?

I'd imagine that Roy's adaptor is designed for the analog RGB output, but 
Roy will no doubt correct me if I'm wrong.

Besides a mathematical inclination, an exceptionally good mastery of one's 
native tongue is the most vital asset of a competent programmer.

Edsger W.Dijkstra, 18 June 1975

----- Original Message ----- 
From: "Aaron Wolfe" <aawolfe at gmail.com>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Sunday, October 25, 2009 12:58 PM
Subject: [Coco] Using Roy's vga adapter with other computers

> Hello,  i have one of Roy's adapters and it works perfectly on my cocos. 
> I have many other "classic" machines and wondered if it might be posible 
> to use it with them if i can build the right cable.  Many things seem to 
> use similar rgb sync etc.
> Anyone know or know where to start looking?  I have a few amigas (and a 
> vga adapter that works for some video modes now), and a commodore 128 with 
> "rgb" output ive never been able to use.  Been wanting to get one of the 
> older atari comps too.  I think i saw a post here where someone had 
> success with one of those.
> Thanks for any advice.  I do have a composite-vga convertor that works ok 
> so its not like i cant use these now, just thought maybe could expand the 
> capabilities of roys great box.
> --
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