[Coco] Fake colors on S-Video

Retro Canada retrocanada76 at gmail.com
Wed Aug 29 07:51:13 EDT 2012


you can make a switch to connect when you want that would be you next revision ;)

Sent from my iPhone

On 2012-08-29, at 7:21 AM, Christopher Hawks <chawks at dls.net> wrote:

> Retro Canada said the following on 08/28/2012 11:21 PM:
>> First: Hi, lemme introduce myself, my name is Felipe.
>> 
>> I'm new here. I had a coco2 clone back in the 80's and recently I bought a
>> coco3 from a thrifty store and now I'm back on coco scene.
>> 
>> I bought the Hawksoft's s-video converter which is great but as RGB output
>> it kills the fake NTSC colors for PMODE4 games, Well, I managed to get some
>> back. So I'm faking the fake colors :P
>> 
>> I did a dirty experiment where I got the luma signal from the s-video
>> adapter and as chroma signal I used the coco3's composite output
>> 
>> Here are the results:
>> 
>> http://t.co/G79UKmwY
>> http://t.co/8T55kEsy
>> http://t.co/EMKJQhEb
>> 
>> comparing to the composite, i have similar but stripped colors with sharper
>> black pixels:
>> 
>> http://t.co/cpmVeJ1z
>> http://t.co/SMiay4wo
>> 
>> I think if I use a resistor like 300ohms on the composite output I'll get
>> better results. I need to switch the cables, so maybe I'll make a cable
>> with a switch button on it.
>> 
>> That's it.
>> 
>> Felipe.
>> 
> 
> Felipe:
> 
>    COOL!!! That looks good! The RGB-Svideo adapter does produce a composite output, but, I didn't connect it.
> 
> -- 
> Christopher R. Hawks
> HAWKSoft
> ------------------------
> "After all, how do you give Microsoft the benefit of the doubt when you
> know that if you throw it into a room with truth, you'd risk a
> matter/anti-matter explosion."
>    -- From N. Petreley's column, "Down to the Wire", sept. '96 issue
>        of Inforworld
> 
> --
> Coco mailing list
> Coco at maltedmedia.com
> http://five.pairlist.net/mailman/listinfo/coco



More information about the Coco mailing list