Atari 800XL: Sophia 2 DVI video upgrade

My Atari 800XL had been modded to at least give Svideo output - which is at least a slight upgrade over composite.
But we can do better with the Sophia-DVI mod.
Both the Sophia and Sophia 2 were designed by Jacek Żuk (known as Simius)

My parallel port cover: https://www.thingiverse.com/thing:4853485
which is based on: https://www.thingiverse.com/thing:4260408

The Sophia config utility: http://mrlurch.com/wp-content/uploads/2021/05/sconf.zip

The main Sophia DVI thread on Atari Age seems to be here https://atariage.com/forums/topic/307175-sophia-2-improved-gtia-replacement/

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Видео Atari 800XL: Sophia 2 DVI video upgrade канала Mr Lurch's Things