[glyphmon]

Mike,

I suspect it was not connected in the first place and has simply been functioning as a power switch since installed.

As before, when I started working on it, the blue wire from first solder point w/Cap 47 and Res 46 on the terminal strip (volume control, I guess?) went to to a chassis/ground near the power transformer.

I can't even be sure the other wire from Caps 56 and 57 - I think what you're saying comes from the plate - was connected to anything.

What would be the proper way to wire this so we forgo the (missing) tone control?  I can live without tone control since this seems to be a pretty rare part to find.  I can put the blue wire back to the ground point where it had been soldered if that makes sense; what to do with the other one?

Thank you for your patience in sorting out this anomaly with me.

Best wishes,
Roy