[sci.electronics] Converting RGB to NTSC Video

mlinar2@caesar.usc.edu (Mitchell Mlinar) (06/12/89)

Does anyone know of a converter between digital RGB Signals (As used by the
CGA and EGA cards and standard NTSC Video Signals.  I can not use the RCA
connector on the CGA and EGA cards since the color portion of the image is
lost in any mode other then the 40 column text mode.  Any and all help will
be appreciated

Reply via mail: mlinar2@caesar.usc.edu, or post to net.

flash@clmqt.marquette.mi.us (Gary Bourgois) (06/13/89)

From article <17785@usc.edu>, by mlinar2@caesar.usc.edu (Mitchell Mlinar):
> Does anyone know of a converter between digital RGB Signals ... and NTSC...

A number of specially made video cards have been produced to allow videotaping
of PC Video images.

One such card is called VIDEO CHARLIE, and is designed for video titling,
but I believe can be used with regular PC software.  It operates in the EGA 
mode.  For more information, call the distributor at (916) 985 7501.
Progressive Image, 322 East Bidwell St, Folsom CA.  The card is not cheap.
($749)

However, I recently saw mentioned (Not advertised, and no address given)
a VGA card with NTSC output (RECORDABLE VGA) in 640 x 480  255 colors.
This unit is also in the $750 range... HOWEVER for someone like me (Hercules
monochrome 386 user), just getting into graphics, and already in posession
of a number of HIGH RESOLUTION NTSC broadcast studio monitors, such a
device would be actually less than the regular VGA outfit.

The card I am refering to is made by US VIDEO.  Here is the release as
copied from videomaker magazine:

US Video has designed a video card that will transform your IBM PC/XT/AT
into a desktop video system.  The company's recordable VGA does just what
the name implies: records in true broadcast quality VGA graphics.
The $785.00 card is capable of multiple resolutions, including 640 x 480
with a palette of 256 colors out of 256,000.  Enhancement options
include overlay, digitization and windowing modules.

No address is given, nor disributor, unfortunately, but that is the one
I would go for.

Anyone have more information on US VIDEO???