[exray]

Maybe a clue. On mine I was able to hear some weak stuff down at the bottom of the band. Messing with the RF trimmer and coil made them louder but the osc trimmer wouldn't move them up the band significantly.

Turns out the osc trimmer was bad. Once replaced and everything realigned it worked ok. I'd suspect the trimmer as being the prime suspect. Many people have reported the exact same problem.

And yes, you should replace all wax paper caps.