I finally got some help to get some pieces out of the attic. It was not as easy as I thought, but we made it.
First, there is the Sylvania Halolight. The speaker cloth needs replacing, and the cabinet will need refinishing, but it will be worth it if I get this baby going.
Second, a 21 inch Maggie. Still trying to locate the model and year info on this one. Looks very close to the smaller one I have here already, so I am guessing it to be from 1958-1960. Once I got it home, I discovered that there is a picture tube brightener connected to it, so, I don't know how promising this will be.
Third, is a very rough looking RCA. If the inside turns out to be fixable, it will need a complete refinishing on the outside.
Eric, out of the 4 knobs on the top, only 2 of them are alike, and those two aren't correct! It looks like the one on the left might be. I looked for the set you are in search of, but had no luck. I will be making several trips there, so I will keep it in mind.