TRS-80 Model 16B - 8 MB RAM Upgrade - Part I: Build

My TRS-80 Model 16B could use more 68000-side RAM for XENIX. A group of former Tandy engineers called Tandy Emeritus has designed a 3-bit MMU board and companion 8 MB SRAM board for these systems for just that purpose. These boards are not generally available for sale. If you wish to contact Tandy Emeritus members for availability, join the Tandy Discord server. For part one, let’s build the boards and talk about next steps! This video is more akin to my older ones with lots of time-lapse/music. These projects are a lot of work, and take a lot of patience and time. That’s hard to convey if I gloss over it is only about 60% of the footage made it into the video. And for some reason, I kept saying SRAM card while referring to the MMU board mid-video. I don’t know what was wrong with me that day. Hopefully I caught them all. Music (in order) Disco Knights by Quincas Moreira Who’s using who? by The Mini Vandals Paradox by Quincas Moreira Cha