Replacement capacitor across the speaker transformer primary.

The wiring underneath is mostly done with solid copper wire run through woven insulation. The insulation appears to have been varnished, but this is breaking down and turning into a sticky mess. All wires run directly between the transformer and the valve/tube sockets. I need the space, so they will be replaced with flex.

The original cathode bias network, and its replacement. Electrolytics have become somewhat smaller in the 60 years since this was made.