Jack, Sorry about that. I just noticed that the inside pic was not loading on the web site.
Bill, Believe it or not I have been collecting the parts for a single 813 modulated by a a pair of 811s. All that is left is the 10v 5 a filament xfrmr and a 3" rack.. .. Now with a little bit of luck at Hosstraders.
The two PW dials would be a neat pair....
Do you have any schematics of yours?