TD: Ramping her up slowly was wise, if she had not been on for a good while. When that was made most electric service drops were 110/220v...today however most service drops are 120/240, with this in mind is why a good bunch of the old receiver gurus look for those small 5 to 10 amp table top variac transformers. The original receiver transformers were rated for 110v primaries. So with the increased service voltage the secondary filament and tube plate voltages came out to high for rated specs.
You can check many sites for suggestions in regards to the caps, but the purest restorers rebuild the old cases. You can check some of the RL Drake restoration pages an some good suggestions are there. I however have never gone that way. I guess it depends if this is something you want to keep for yourself or is this an "investment" restoration. Most collector grade buyers would want the original case, knobs, same as new throughout. The refitted version would not be something "those" type of collectors would not want unless they would use it for a parts rig. The chassis has been in a damp or salt water environment to rust so completely. The cleaning may be coming to late...However the Drake sites can offer some excellent tips also for cleaning and sealing the chassis to prevent further damage as many of their early tube chassis were copper clad and very prone to rust over time.
A good run across the tube checker comes to mind also, if you have one or can borrow one for a spell.
If the caps are original or even slightly newer(waxed paper tubes) they are not long for this world...they will need to go. A look around the web should yield a schematic once you identify the actual model or brand of chassis...
Looks like fun, but take your time and be careful...that old chassis can pack a "Punch" if you get in the wrong place working her "HOT"!
I had my old Silvertone floor model SW/AM/FM radio cross my eyes once and that was only the speaker voltage! However anyone that ever works on those old girls has more than "one" story...Yep I do!
All the Best
BJ
