[Arran]

I guess the catch should be if the tubes are good, then they alone could be worth $20, at retail, but used 6.3 volt tubes are usually not that expensive unless it's an uncommon power triode like a 6A3. The model 60s used what I would call a pre-octal version of an AC AA5, 6A7, #78, #75, #42, and an #80. They are very straightforward sets, as far as Philcos go, but on some sets the police band portion of the oscillator coil will need rewinding, which is very easy to do. Other then that you need to check the big things, like the power transformer, the speaker field coil, and the output transformer, but those rarely fail unless a filter cap shorts out. I think for $20, if you have the room, and like the style of the cabinet, then why not?
Regards
Arran