
This one was hooked up to an electron microscope which is honestly super cool. (Here's one in with the scope)
It has a pretty unique layout that I personally love to pieces. and this one in particular has some cool additional legends that appear to be printed on, although someone with incredibly steady hands could have painted them on I guess. I'm not really sure how to determine the printing method here, if anyone has any ideas let me know.

The relegendables on this are very cool but I honestly don't know how to remove the tops. I am hesitant to try prying them off as I do not wish to damage them.


I haven't looked into any of the model numbers or anything so I don't know how old the board even is. I want to clean it up and get it working over USB at some point. It would be nice to retrobrite the caps but I don't want to do anything that would risk marring the printed legends so they'll have to stay tan. The seller was nice enough to link me to the user manual for the electron microscope that it goes with and I will be sure to share whatever info about the board I can find in there. A pipe dream is to convert this and then hook it up to a modern JEOL electron microscope, which would be the coolest.
Here's a link to an album with more images.