Ok no idea why audio output tube filament was not staying on. Its not doing it now. Same as the 6bg6 tube where the filament was shutting off. Mess with it long enough and they quit doing it. anyway 2 things noticed were a 14000 ohm resistor that actually says 14000 aerovox on it which I think is supposed to be 15000 and measures 19000, plus theres 2 coils that look like they are corroding and should I be worried about the resistor value being over 25 percent off and the coils looking greenish? I see no reference to this resistor even in the changes being 14000 ohms and I have chassis run 18. Apparently sound keeps going from having it fully cranked and medium volume to blasting volume and having to turn it down. Was normal volume response with loud at full knob and I wanted to test the focus knob rheostat voltage center pin and the second I touched the center pin with meter it made popping noise and volume went to fully cranked medium volume. Wild, now focus is sorta near center of adjustent after using 2 of the 12k ohm 20 watt resistors in parallel for the 6 k can ohm.
