[Coco] Need help with composite output for CoCo

[Michael Rowen]

EBay used to have several, but I did some searches and they seem to have vanished. 







Jamie <reinsj at nbnet.nb.ca> wrote:

>Michael Rowen <mike at ...> writes:
>
>> 
>> I agree that these circuits don't seem to be able to drive modern video inputs.
> I had the same 
>experience you
>> had - black screen. I had one old CRT monitor that would show 
>up a very dim back on gray. I 
>picked up an old CoCo 1
>> with a similar circuit in place, same result. Output looks OK 
>on a scope, but not powerful 
>enough to display
>> on a modern LCD TV. The only circuits that seem to work 
>without issue are those based on a 
>an MC1372. I'm sure
>> there are amp designs that work, but haven't been published or 
>fully reverse engineered. 
>There are cheap
>> devices in the $14-$30 range that will convert RF out to VGA. 
>Good Luck!
>> 
>
>> 
>
>Mike, can you point me to an example of a converter in the $14to $30 range? 
> I can't seem find anything that cheap.
>
>Thanks!
>
>Jamie
>
>
>
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