I know I need to rebias the amp. So I pulled all the tubes but front left, set the switches back, plugged in teh WZ68, and a new 5A slow blow fuse. Set the meter on pin #8, and fired her up. Once the delay ran out, the voltage slowly climbed to 2.8V with the bias turned all the way down (counter clockwise). Strange. So I proceeded to install each additional tube which came in low with their respective bias knobs turned down. I adjusted each to .500V. For grins I turned the amp off, then started it again. Same thing. I swapped tubes at front left and of course same thing.
So I'm wondering what went south? Thoughts?