sicklittlemonkey wrote:
This is far more complicated since the VGA monitor needs at least about twice the line frequency of the IIgs or TV standards.That's why I've been looking at upscan converters here in Japan. They cost about US$100. Has anyone tried one of these for composite NTSC to VGA? I'm wondering if the 'nearly' NTSC of the Apple 2 will be converted correctly with artifacts etc, and how good the quality would be.
I tried one of these about two years ago, and though the display was usable, it was hardly attractive. The colors were garish and single-pixel-wide features (like fonts) wiggled horixontally like worms as the sample gate moved (unsynchronized) over the pixels. There are more expensive converters which may work much better, either by oversampling substantially (2x-3x) or by locking to the input's dot clock. I haven't seen any of these in action. -michael Music synthesis for 8-bit Apple II's! Home page: http://members.aol.com/MJMahon/ "The wastebasket is our most important design tool--and it is seriously underused."