please identify these 28-volt power supplies

[maddawg308]

Saw a couple 28-volt power supplies from the last time I went up to Colemans in PA. One is big, about 90 lbs, data on the tag is shown in the pics. The other is smaller, painted white, maybe 10 pounds. I don't have a pic of the data tag on the smaller unit.

Anyone familiar with these power supplies? What are they used with?

 

[NDT]

The green one says "missile command" so whatever it fits into is no doubt demilled and gone. The second white one is a voltage regulator for the 200 amp (IIRC) alternator in 1960's tanks.

 

[Storm 51]

That first unit looks like it would make a nice shop battery charger if you could regulate the output.

Storm 51