This project describes how to build a cable to connect a Tandy CoCo 3's RGB video output to a commercially produced SCART to HDMI converter. https://hackaday.io/project/7366-coco-3-rgb-to-scart-to-hdmi-cable <https://hackaday.io/project/7366-coco-3-rgb-to-scart-to-hdmi-cable>