1948 Capehart trouble

[Eric H]

FWIW when I capped that set that's all I did, slapped caps in it, fired it up and got a picture and that was it, it's hasn't had any resistors checked, tubes checked or sockets Deox'd, tuner cleaned or any of that stuff so that might be a good place to start.
Nothing was done to the radio at all, it more or less worked as-is but seemed weak.

Edit: I may have checked the tubes but it's been so long I can't remember.