[Coco] CGA to VGA/TFT converter

[Gene Heskett]

On Tuesday 11 December 2012 12:44:06 Mark Ormond did opine:

> I've got one of those, and yes they mean CGA in the arcade sense, not in
> the IBM sense. So analog rgb 15K input with Video amplitude of 2-5V
> point to point.
> 
Yup, the gime's nominally .7 volts of video is a bit puny to drive those to 
full output.

> Later,
> dabone
> 
> -----Original Message-----
> From: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com]
> On Behalf Of Michael Graham Sent: Monday, December 10, 2012 10:41 PM
> To: CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] CGA to VGA/TFT converter
> 
> I've seen that thing before.  I'm pretty sure saying it takes CGA is
> incorrect.  Or rather, they're using CGA to mean 15kHz RGB, as they do
> in the arcade cabinet communities.  But at any rate, I'm fairly sure
> the RGB input is meant to be analog.
> 
> -Michael
> 
> On 12/10/2012 09:27 PM, Frank Swygert wrote:
> > I know a couple people on the list are making a converter, but this
> > might be an option:
> > http://www.starlitegaming.com/Parts_and_Accessories/Converters.html
> > 
> > It's listed as $39.99 + $8 shipping. Converts RGB/CGA (combined or
> > separate sync) to VGA. This will work with a CoCo, as you can connect
> > a CGA monitor (but lose a lot of colors). I'm not sure how it will
> > work with analog rather than digital input, should be the came as
> > using an old CGA monitor (lose colors), I'd think.  Any comments?
> 
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Cheers, Gene
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