New subject: Atari 800xl Super Video 2.1 mod (and other video mods)

10 Jun 2009

I recently acquired an Atari 800xl and would like to apply the Super  
Video 2.1 mod to get better video but have been unable to locate the  
description of how to do it anywhere on the web. I've done a google  
search and found many links to it but they all led to dead ends. Can  
someone point me to the article describing this mod?

Thanks,
David Betz