So the filaments are glowing, but the radio's not making music, ey? Does it make any sound at all? Do you know the condition of your speaker and its field coil? Are the tubes new as well as the caps?

Now that you have a schematic, it will be easier to poke and prod around in there with a meter or scope. You can check B+ to see if the rectifier's output is making it through the field coil onto the tube's anodes. That would probably be my first step, and then I'd trace it from there.