[Coco] New s-video board for the CoCo3 RGB port

Zippster zippster278 at gmail.com
Sun Apr 10 09:13:40 EDT 2016


I was surprised too.  I expected it to be better than the CoCo3 composite port,
but not this good.  It uses the AD725 from Analog Devices.

- Ed


> On Apr 9, 2016, at 10:10 PM, Richard Goedeken <Richard at fascinationsoftware.com> wrote:
> 
> Very impressive.  I can't believe you were able to get that level of quality
> with S-video.  Must be a very good encoder chip.
> 
> Richard
> 
> On 04/09/2016 07:29 PM, Zippster wrote:
>> Hello everybody,
>> 
>> I’ve put together a composite and s-video adapter for the CoCo3 RGB port.
>> I had a chance to put together some prototype PCBs I received back, and it’s looking
>> pretty good.
>> 
>> The s-video output in particular is excellent.  Very useable 80 column text screen and
>> nice graphics screens for games.  Here is a link to some pics of the board and some
>> screen shots.  The screen shots are all s-video on a 50 or so inch LCD TV.
>> 
>> <https://drive.google.com/open?id=0B1sgl615FlGneHZWa2VhbUJWcEE <https://drive.google.com/open?id=0B1sgl615FlGneHZWa2VhbUJWcEE>>
>> 
>> - Ed
>> 
> 
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