@TjLaZer
Awesome! Thanks for the link. That will be a future project for me. A500 is complete, A1200 is in progress, then comes Atari 800XL. Those are the 3 best "computer-in-a-keyboard" models ever made (C64 would be 4th on the list). I'll have them all upgraded to the maximum - while still keeping original graphics, sound and case.
Does that Atari 800 flash have any problems or does everything work perfectly?