Re: Apple IIGS monitor replacement

["Michael J. Mahon" <mjmahon@aol.com>]

Mitchell Spector wrote:
> "Michael J. Mahon" <mjmahon@aol.com> wrote:
>
>
> > Mitchell Spector wrote:
> >
> > >    I believe it's a flaw in the video design of the IIgs. RGB video is fine,
> > > but composite is a mess (excluding emulated 8-bit Apple IIe video). 
> > > Apple did quietly offer a solution/fix, that was to purchase and install 
> > > their Video Overlay Card. You get respectable composite video with
> > > that, without any of the massive color shifting and color inaccuracies.
> > >
> > > I took some quick snapshots to (roughly) show the difference:
> > >
> > > Apple IIgs composite-out (built-in port):
> > > http://raptor.golden.net/~mspector/IIgs-composite.jpg
> > >
> > > Apple IIgs composite-out (Video Overlay Card):
> > > http://raptor.golden.net/~mspector/IIgs-VOC.jpg
> > >
> > > Apple IIgs RGB-out (AppleColor RGB):
> > > http://raptor.golden.net/~mspector/IIgs-RGB.jpg
> >
> > These are very interesting.  I've never seen a IIgs hooked up to
> > a composite monitor, so it's interesting to see how the 8MHz and
> > 16MHz dot clock affect it.
>
>
>     I put them side by side (the left half of the screen), it gives you
> an even better comparison. You can see how the Video Overlay
> Card does it's aliasing, the text is slightly blurred but the trade off
> is the color shifting is far less visible:
>
> http://raptor.golden.net/~mspector/Video%20comparison.JPG

Very nice picture--I'm filing it for future reference!

-michael

NadaPong: Network game demo for Apple II computers!
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