Here also a quick run-down of high-level differences. The references post has all the details.

Late last year, I replicated the Model 1 Revision G. Since then, I have worked on multiple machines with different board revisions and noticed significant differences among them. To fully document all the details and distinctions between the revisions, I reverse-engineered all the major boards (Japanese revision is pending).

You can find a detailed post about all the differences between revisions A, D, E, and G here:
https://www.patreon.com/posts/exploring-of-trs-117044053

I am working on a replica of the Archer Amplifier/Speaker that was used back in the day with the TRS-80 Model 1. The first prototype works well. I just need to make some tweaks or find a better audio connector that is long enough to lead out of the case.

@trevorflowers is this not too hot for resin prints?

@trevorflowers oh, that is nice. I was looking for a way to replicate the original keycaps. I guess I will try that.

Just release the TRS-80 Model 1 Mini open-source on my Patreon (https://www.patreon.com/posts/111626710) or GitHub (https://github.com/RetroStack/TRS-80-Model-I-Parts/blob/main/Main_Enclosure/README.md#mini-case).
#retrocomputing #trs80