This is a follow up video to my efforts to upscale the CoCo3 to VGA. Here are some of the items I discuss in the video:
GBS-8200: https://amzn.to/3PSd6Ph
Anbery AV-1n: https://www.ambery.com/av-1n.html
CD4077BE XNOR IC: https://amzn.to/3Exs9LG
Where I learned about proper CSYNC: https://www.hdretrovision.com/blog/2019/10/10/engineering-csync-part-2-falling-short