How to fix Peavey Classic 30 Tube Guitar amp 6BQ5 red plate condition D-Lab

Quick fix for a local band in need. Lucky for me, a new set of output tubes did the trick. The Classic 30 is a great amp, and when working sounds superb. The downfall is the EL84 tubes. Sound great however run hot until failing. Don't be afraid to move your tubes around and see if the hot one shows its true colors.