Recapped radio, powered up but no audio... next steps

[TheShanMan]

I'm working on my Westinghouse 1946 radio (https://www.tubesandmore.com/schemat...ric-corp/h-110). I recapped it, replaced a blown resistor, and fired it up tonight. However, I'm not getting any audio. I notice that all tubes get warm and/or glow except for the 5U4G rectifier tube. It stays cold and I don't see any glow.

Being new to the world of vacuum tubes (other than my arcade monitor CRT experience), my first question is if that tube can be considered bad based on these symptoms? If so, should I just go ahead and order a replacement or would it be better to find a local who can test it first?

Otherwise, what would be the next steps in troubleshooting? Should I jump straight to having all my tubes tested? Or are there some things I can reasonably do first with a multimeter and/or scope? Given my inexperience in this world, any guidance regarding where/what to focus on in the circuit would be a big help (e.g. x volts should be on pin y of tube z).