That cabinet would benefit from a light restoration. Possibly just rubbing it with a light vegetable oil and light grade steel wool to eliminate some of the hazing. Possibly re-amalgamation.
Sounds like the guy you got it from tried to operate the radio without updating the innards. Big no-no. He may of fried the transformer. You will NEED to replace the capacitors. Old capacitors dry out with age. If possible also check the tubes.
Old radio repair isn't too difficult, and can be rewarding. Good luck.
Here is a good resource to answer questions:
Antique Radios - The Collector's Resource
Facebook also has some very good Antique Radio resource discussion groups. Helped with my Grundig!