[bridkarl]

I think the white dot is a tolerance marker. I just ordered a new silver mica at 680 at 5 percent.
I’ve been rewiring basically the entire audio section of this SX-62. The 75 year old tube sockets were just becoming brittle. So far so good although I’d love to see a good clear photo of this whole section to check my wiring. I dry fit some wires this morning and will recheck them again before I solder.
These new ceramic sockets seem to work well. I’ve been having to splice several of these short old wires and cover them in heat shrink.