[herromc]

Ok, I checked out the rear toggle switch, so I'll try to tell you where the wires go.  Next to the toggle switch is a, what looks like an external audio jack (not sure if that 's what it is), and one wire goes there.  Another wire goes to the volume dial.  A third wire goes to one of the 7B7 tubes.  Another wire goes to what I think is a capacitor (30-4572).  The last wire goes to, what I'll call, a terminal (at that point, there are 2 small, non-insulated wires - one wire goes to the 7C6 tube and the other goes to one of the #41 tubes.  Hope you can tell me what the toggle is for.  Thanks in advance!