[Kurt P]

So...Radiodaze has cloth-covered wires, the thinnest, I think, is either AWG20 or 22, forgot. Should do if it satisfies your aesthetics.

OK, thanks for the tip! Any suggestions on the speaker connector plug? This set didn’t have one, and I’m looking for a quick release kind of connector so in the future I won’t have to take the speaker out if I have to remove the chassis.

the 75 tube. That tube turned out to be the volume up down issue you have and I had.

The wire to the grid cap was a little suspicious, kind of cracked so I replaced it and cleaned out the grid cap and the connector to the grid cap and it seems like the issue is gone.  Really starts to oscillate if the lead gets too close to the adjacent tube!  I'll try reflowing the cap if I hear it again.

This set is really noisy still.  I see that there's 35VAC in kind of a triangle wave on the first filter cap but only .3mV on the second, so hopefully that's OK.  I guess I could bump up the values a little since they're both only 8µf which seems a little low from my (very limited) experience.  Maybe lower value caps were cheaper back in the day?

I haven't had a radio yet that was still this noisy even when tuned in on a strong station.  A new troubleshooting opportunity!  Makes me wonder if there isn't a bad connection somewhere.  I don't have a signal tracer, sadly.  Probably should get one.  Actually I have an Eico signal tracer, I just need to go through it.  So many projects...

I'm assuming the coils are OK since I can receive so I guess the IFs are OK.  I did an alignment following the instructions in the 146B service bulletin and the very clean waveform out of my signal generator is pretty distorted by the time it gets to the plate of the 42 tube.  

Noise on the plate of the output tube with volume at minimum and no signal applied:
   
Plate of the 42 tuned in to 1500KHZ:
   
Close up:
   
Do these waveforms look like anything in particular?
Thanks!