[TA Forbes]

Yes, you are right. If the transformer stays cool it is usually, well, mostly NOT the xfrmr. After going back and reading the account(s) of what he has done thus far, agree that it is a positive sign that no smoke was encountered when he pulled the tube. AND you are correct about the other tube fils, since the 84 is a 6V rectifier.

The scenario I was thinking of would involve a separate rectifier filament winding in the xfmr.

BUT if the HV winding is bad, then what I stated can still be true. Resistor 60 goes to CT of the HV winding.

Proof will be pulling the 84 and allowing the set to stay on for a few mins to see if the xfrmr gets hot. OR measuring ohms between the two plate pins of the 84 socket.