7 Nov
2007
7 Nov
'07
11:26 p.m.
On Nov 5, 2007 3:39 PM, Jim Leonard <trixter at oldskool.org> wrote:
Jules Richardson wrote:
I've had luck with converting the RGB to VGA and then converting the
VGA to NTSC using both this sort of device
(http://www.genao.com/converters.htm) and this
(http://www.converters.tv/products/cga_to_vga/425.html (Warning,
expensive))
Not cheap, but when it needs to be done, it needs to be done.
converters.tv does have a CGA to NTSC converter that they are offering
for 110 AUD (~$100 US)
(http://www.converters.tv/signals/cga_to_ntsc.html)
Eric
So... how about hooking straight to the TTL RGB outputs of the vintage
machines and somehow sampling lines of data into the PC for display in a
window (with appropriate scaling in software as/when necessary so that
the image more or less fills the PC display)?
Video capture of 9-pin TTL RGB (such as that used by IBM CGA, Commodore
C64, etc.) is something that I have been trying to do for a very long
time, without appreciable success. I even tracked down an old scan
converter that claimed to convert TTL RGB to NTSC so I could grab it
with a capture card turned out to not work (although it's possible the
scan converter was broken).