I remember when my dad was building it.
By the number of holes in the case, this was repurposed a couple of times since the early 80s.
Still works. The TO3 don't have much writing on them so making the schematic of it might be a bit hard.
The volt meter is pretty much right on the money...
It's a shame to see so much unused space. A bigger transformer, for instance, or more filtering maybe.
I agree. I know the 2nd hole was for a current limit. So I was thinking to add that part of the circuit.
The shunt is just a wire running around the Amp meter...
Floating negative would be fun too...
Cleaned it a little more and replaced the power cord.
The transformer is a Basler something, I need to check the rating.
Edit away stupid autocorrect...