[Coco] The thrill of CoCo'ing again.

Christopher Barnett Fox cbfox01 at syr.edu
Tue Nov 25 13:06:59 EST 2014


I really couldn¹t say, Kandur. I found the AVC-011 from a post where
someone else had also used it for CoCo3 RGB to VGA. I didn¹t do research
on alternatives, since I didn¹t know enough about the technical details
and requirements. I needed a solution that would be as quick and easy as
possible. With the AVC-011, it only requires the construction of a cable
going from the CoCo¹s 2x5 pin header RGB out to the six-pin CGA input on
the converter. It¹s a direct connection between the RGB, H and V sync and
ground pins on both.

My goal was just to get something clear enough for 80-column text. I
haven¹t finalized the cable build, and I know my signal quality should
improve as I reduce the signal path, etc., but even a rough and quick
setup produced very usable output.

Christopher


On 20141125, 12:48, "Kandur" <k at qdv.pw> wrote:

>Christopher, a few month ago, I was in your shoes,
>
>Monday, November 24, 2014, 6:10:05 PM, you wrote:
>> skip<
>>   1.  Finally setting aside the time to build an RGB to VGA solution
>>for my
>> CoCo3. I used a Wei-Ya AVC-011 converter, which required only a custom
>>cable
>> be constructed to create a reasonably crisp image. It's so much better
>>than
>> the CoCo3's composite out could manage! 80-column mode is finally
>>legible!
>> True, it's nowhere near as good as Luis's FPGA solution, but it's good
>>enough for now.
>> skip<
>> > Christopher
>Since I have not heard about the,
>Wei-ya ACV-011 CGA to VGA converter, $72.98
>http://preview.tinyurl.com/lsecv8k
>I bought the,
>GBS-8220 Video CONVERTER CGA YUV to VGA Monitor, $20.12
>http://preview.tinyurl.com/l4uody9
>Now I'm wondering, if bought the right converter.
>Is the Wei-ya three times better, then the GBS-8220
>as it's price indicate it?
>Anybody, please feel free to comment on this.
>
>Kandur
>
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