What's reaaaallllly buging me is that the "white" noise that tracks with the volume is coming from one channel only. I either have a bad volume pot, bad resistor, bad tube socket or bad tube. And since the noise disappears at full volume, it's starting to sound like a volume pot with a bad ground connection. Hopefully I just need to ground as you suggested and all will be fine....Colin

GarMan, Thanks for suggesting that the top chassis should be without ugly little screw heads poking out. It cost me a bit of time to rearrange the layout, but the end result was well worth it. I should have pictures up tonight.....