Mystery 5.5" B&W from early 1980s

[MightyFrame]

Hi! I've been here for a while, but this is my first post. This is a great group!

I'm trying to identify the manufacturer, and even the model, of this TV:

http://mightyframe.blogspot.com/p/th...from-3511.html

Unfortunately I don't have any trace of the original case/housing, and I can't find any labels, so I'm left to track it down from the internal guts shown here. When I saw this a few years back, it was mounted in some custom fiberglass monstrosity.

I wasn't able to remove any more than what I show in the pics, to see the top of the tube, or the back side of the main board.

I'm hoping someone here might recognize the tube, boards, or circuitry as being something they've seen, have, or worked on before.

This custom thing was likely cobbled together in early 1983, so that is the timeframe we're looking at here.

Thanks everyone!
-AJ