Good Composite->VGA converters for classic computers (& video games...)

Steven Hirsch snhirsch at
Wed Jun 4 19:10:53 CDT 2008

On Wed, 4 Jun 2008, Jim Leonard wrote:

> Steven Hirsch wrote:
>> Just picked up a Wei-Ya ACV-011 CGA --> VGA converter board with the 
>> intention of using it with a Commodore 128 (and possibly Amiga).  It 
>> doesn't have a true TTL input, but there is a C128 enthusiast out there who 
>> published a small circuit to do the RGBI --> CGA interface.
> Any link to the circuit?  I might want to try this with my IBM CGA.  I also 
> have an Extron unit that I'll eventually hook up, once I can find cables 
> and/or pinouts.

Search comp.sys.cbm in Google groups for a thread titled:

"Fotios' C=128-RGBI-to-VGA hack with IBM-CGA color fix for brown"

Between the postings there and his links, all should become clear.

I'm planning to build this RGBI --> CGA converter this weekend.



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