[Coco] COCO3 Video

[Zippster]

Not really a standard, but does denote RGB and separate (H)sync and (V)sync.

The CoCo3 outputs 15.7KHz analog RGB with separate, positive-going syncs.

I’m guessing the boards you mention are the GBS8200 and similar scan rate doublers
to get VGA scan rates.  They’re cheap, they work, and they’re generally considered a little fuzzy.

Other options are available like the super espectro from cloud9 and Richard Lorbieski’s SCART
to HDMI cables that will give a much better picture.  Still, has to beat RF and composite, right?  :)

- Ed


> On Mar 1, 2018, at 12:15 PM, Bill Gunshannon <bill.gunshannon at hotmail.com> wrote:
> 
> 
> I am just full of questions today.  :-)
> 
> 
> There is apparently a standard (of sorts) called RGBHV.
> 
> I think it was used in video games although there does
> 
> seem to have been some attempt to get it into the home
> 
> theater market.
> 
> My questions:
> 
> Anybody here familiar with it?
> 
> is it likely that the output from the bottom of my COCO3 would match 
> this spec?
> 
> My reason for asking is I have a board that claims to be able to convert 
> this to
> 
> VGA.  If it were to work, these boards are really cheap ands still seem 
> to be
> 
> available all over the web.
> 
> 
> Given no information I amy give it a try, but I will have to make a 
> cable and
> 
> that may be more work than I can easily do as I expect those DB15's are
> 
> rather crowded.
> 
> bill
> 
> 
> 
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