[Coco] S-Video mod for Coco1

[Luis Antoniosi (CoCoDemus)]

Is there a chrominance output on it ?


On Mon, Sep 30, 2013 at 2:57 PM, Ken H. <dragon.atv at gmail.com> wrote:

> This is an amazing video quality for the CoCo1 !
> Do you think a similar mod could be done with the Tano Dragon?
>
>
> On Mon, Sep 30, 2013 at 5:59 AM, Luis Antoniosi (CoCoDemus) <
> retrocanada76 at gmail.com> wrote:
>
> > With a very simple driver you can make a perfect a s-video output for
> your
> > coco1
> >
> > http://www.youtube.com/watch?v=47r1S8Sjr20
> > http://www.youtube.com/watch?v=2AYpUA5H5tg
> >
> > https://pbs.twimg.com/media/BVYIpfxCEAAy8kO.jpg:large
> > https://pbs.twimg.com/media/BVYItw_CQAAQupH.jpg:large
> > https://pbs.twimg.com/media/BVYIxdGCcAEMydj.jpg:large
> > https://pbs.twimg.com/media/BVYI0ZaCAAAikiF.jpg:large
> > https://pbs.twimg.com/media/BVYJEVaCQAAJz1z.jpg:large
> > https://pbs.twimg.com/media/BVYJIJQCQAAXWOf.jpg:large
> >
> > Basicaly s-video signal works with 2 signals: Luminance and chrominance.
> > The luminance you can use the same monochrome driver you are used to, 2
> > transistors tied on Y output from 6847. But the chrominance you get from
> > 1347 pin 8. A 300 Ohm resistor is needed to reduce the vertical lines. It
> > worked with 2 monitors an a s-video / vga converter I have here.
> >
> > Check the video how to get artifact colors from it.
> >
> > Didn't test on coco2, dunno if works since the 1372 is connected
> different
> > there.
> >
> >
> > --
> > Long live the CoCo
> >
> > --
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> > Coco at maltedmedia.com
> > http://five.pairlist.net/mailman/listinfo/coco
> >
>
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>



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Long live the CoCo