Bring new life to a classic Radio Shack TRS-80 Color Computer 3 with a hardware upgrade and full motherboard recap project focused on improving reliability and performance for this iconic 8-bit home computer. In this video, the original Motorola 6809E processor is upgraded to the more advanced Hitachi 63B09E CPU, a popular enhancement within the Tandy Color Computer community known for expanded instruction support and improved performance capabilities.
The video also documents a complete capacitor recap of the CoCo 3 motherboard to help preserve and future-proof the system for continued retro computing use. Hardware work includes careful desoldering techniques using a Hakko FR-301 desoldering gun, proper flux application, and safe CPU removal methods intended to preserve the original Motorola processor for archival and future use.
Celebrating the retro computing community events known as OctTandy and SepTandy, this upgrade project highlights the continued enthusiasm surrounding the Tandy Color Computer platform and the ongoing efforts by collectors and hobbyists to restore, preserve, and enhance vintage Radio Shack computer hardware decades after its original release.