[Coco] Re: [Color Computer] CoCo 2 and a PC VGA

Kevin Diggs kevdig at hypersurf.com
Fri Sep 10 20:11:59 EDT 2004


Hi,

	I don't believe this is quite correct. The VDG outputs a luminance 
signal and two color signals , phase a and b. I believe this amounts to 
describing a color space with 3 components. I am confident these could 
be converted into RGB with little or no signal loss.

	If I ever find a job my scan doubler for the tre is also going to 
support my deuce. The model deuce I have, a -3026, has ... terrible 
video noise. Anybody else with this model have the same problem? And it 
is not because of its age. It has always been bad.

					kevin

P.S.:	The VDG also outputs a "chroma bias" but I don't believe this is 
an independent signal component.

Davey Brain wrote:
> 
> Steve,
> A scan doubler will convert to VGA/SVGA. But I just googled on that and 
> they all seem to work with RGB and not composite (example here: 
> <http://www.cadesigns.co.uk/scan-2.htm> ). So you'd have to convert to 
> RGB and then use a scan doubler to convert to VGA. Lotsa signal loss 
> there so probably a poor quality picture. The Coco 3 has RGB out so you 
> could try a scan doubler on that.
> 
> WarpDavey




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