Alright, sweet. That's what I needed to know. I do have a Sylvania tube manual from the late '50s but it doesn't cover some of the early types for some reason. I didn't realize that wasn't normal. Maybe I'll keep an eye open for a different book at the flea markets and such...
My filament supply is going to be run through an LM338 (or whatever number it is, I can't remember offhand) 5v regulator, so I should be fine there. Looks like I might even be able to get the PS put together this weekend.
The only obstacle after that is the dial pulleys. The potmetal ones are long gone, and somebody replaced 'em with some very badly done wooden ones...
I have an interesting idea on making new ones easily and cheaply, and since it seems to be a fairly common problem, I'll post a tutorial if it works. (I don't have easy access to brass ones out of a junker radio.)
Thanks again. Hopefully I can get this thing working pretty soon...