08-07-2017, 05:26 PM
I think you came up with a winner, Greg. I just removed the tubes and, handily, the tube sockets have the tube numbers right on them. It does indeed have 80 , 47, 24, and 35/51 tubes. I agree with Arran that someone added what looks like a tone control above the escutcheon. This will, of course, be removed and the hole in the cabinet filled. Thanks to everyone for helping solve the mystery.
Greg V.
West Bend, WI
Member WARCI.org