Looking for specs & schematic for acdc electronics model 51-200

[Doug]

Acdc electronics inc model 51-200 Burbank
Long shot but here it goes....
Looking for specs & schematic for this old vacuum tube regulated power supply.
Acdc electronics inc 51-200 Burbank Ca.
Has RPM regulated power module on it
I guess 50s-60s.
I have done extreme amount of searches on the web ,found few but was for later years as in 70s.
Smithsonian had some info from the 70s.
I requested that info but more than likely wont help.
I just want documention before I try it.
It's missing one tube but no markings on frame .it's very well build and compact the name is acdc electronics
Which is very generic and gets thousands of non related results as in the acdc band.......

Doug
Sw ohio