[Arran]

Other than the cable being broken on the tuner everything else checks out. Unfortunately some has done some work on this thing, they replaced the electrolytics a long time ago but did it outside the metal box full of capacitors. As soon as I repair the tuner I'll have to see whats happens. I'll have to order the caps for this to repair it right.

  These sets didn't use electrolytics originally, they used a series of large paper caps and chokes for filtering in the power supply. The original paper caps are inside that can and were probably bypassed by the electrolytics, hopefully because the old caps were open and not shorted. In any event you can use modern polyester film caps as replacements for the paper caps inside the can. Apparently Philco liked to line their condenser cans with fish paper so it isn't too hard to remove the contents if you want to rebuild the can.
Regards
Arran