[Coco] CoCo 2 Factory Composite Video RE'd

[John Robbs]

I'll take one.
On Dec 14, 2014 3:12 PM, "Gabriel Holland via Coco" <coco at maltedmedia.com>
wrote:

> Put me down for one, too!
>
>
>      On Sunday, December 14, 2014 1:50 PM, lciotti1 <lciotti1 at gmail.com>
> wrote:
>
>
>  BTW... Put me on the list for two when you are ready.
>
> > Zippster <mailto:zippster278 at gmail.com>
> > December 14, 2014 at 12:27 AM
> > Hi Everybody,
> >
> > I’ve successfully reverse-engineered the factory composite board found in
> > a CoCo 2 I purchased on ebay. This board is a direct replacement for
> > the RF modulator.
> > It requires no modifications to the case, and uses the channel switch
> > to select B&W or COLOR.
> >
> > It seems to have very good output - I’d say better than the reference
> > circuit from the 6847 data sheet.
> > It’s a more involved circuit with voltage regulators on-board and is
> > AC coupled.
> >
> > Pics of the factory and re’d prototype can be seen here for those who
> > are interested.
> >
> > <https://sites.google.com/site/thezippsterzone/coco2-composite-board-2
> > <https://sites.google.com/site/thezippsterzone/coco2-composite-board-2>>
> >
> >
> > - Ed
> >
> > Allen Huffman <mailto:alsplace at pobox.com>
> > December 13, 2014 at 11:54 PM
> >
> >
> > Here is a placeholder page for this “contest”:
> >
> > http://www.cocopedia.com/wiki/index.php/CoCoCoding_1980_Contest
> > <http://www.cocopedia.com/wiki/index.php/CoCoCoding_1980_Contest>
> >
> > We can come up with ideas and suggestions. I just haven’t had time to
> > think about it much.
> >
> > Xroar can run Color BASIC 1.0 (bas10.rom is what you want) so that
> > would be a very easy one to get going to play with this if you don’t
> > have an actual 4K CoCo around ;-)
> >
> > I will have to add a section about using Xroar and setting up a
> > cassette image and stuff.
> >
> > — Allen
> >
> >
> > Allen Huffman <mailto:alsplace at pobox.com>
> > December 9, 2014 at 2:56 PM
> > Would anyone be interested in having some silly fun, and writing
> > programs for the original 1980 4K CoCo with COLOR BASIC 1.0?
> >
>
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