Re: RGB->NTSC

["Brian J. Cardanha" <bc2t+@andrew.cmu.edu>]

Excerpts from netnews.comp.sys.apple2: 29-Nov-93 Re: RGB->NTSC by Ian
Schmidt@iastate.edu 
> In article <Nov.29.11.39.28.1993.22852@gandalf.rutgers.edu>
lius@gandalf.rutgers
> .edu (S. Liu) writes:
> >
> >Would anyone know how to construct a cable from the RGB output of the
> >IIGS to an NTSC monitor? I guess this is what's built in to the IIGS,
> >but I need an external cable. 
> 
> This isn't a matter of a cable; you need circuitry to correctly
combine the R,
> G, B, and sync signals into a properly-timed composite color signal. 
Motorola
> makes a chip that does this; indeed, this is what Apple did to get composite
> output on the GS.
> 
> I guess my question would be, why do you need to do this externally as
opposed
> to simply using the GS's own composite out?
> -- 
> Ian Schmidt / irsman@iastate.edu / IRSMan@aol.com
> "Have you ever associated with crickets?" - Crow, MST3K

If anyone is interested, it's chip #1377 from Motorola.  I know it's
available from Newark Electronics, not sure about anywhere else.

Brian Cardanha
bc2t@andrew.cmu.edu
Instructional Technology
Carnegie Mellon University