Tektronix TM500 module parts

These are from an attempt at designing printable parts for building my own Tek TM500 plugins. I haven't touched these in some time, but they should be in decent shape, though a little incomplete (no PCB mounts on the top/bottom rails yet, and no affordance for the pull tab on the front). I also hadn't considered whether I wanted to deal with side panels.

These should at least be a good start for anyone wanting to pick up where I left off, however.