AtomicBomb
Member
I have used my BK 480 to rejuvinate lots of tubes. Today was a new one for me though. While running rejuvinate, I let the heater warm up then held the action button, watched the indicator needle spike to ~1.8 then waited for it to fall, but it never fell much. Maybe to about 1.6, even after 30 seconds. I've seen tubes that kinda hovered or bouced around a bit, but all eventually fell to 0 or near to it. I ran the routine 3 times, always with the same result. Ran it on all the guns; the same result. Ran the clean/balance routine with the same results at lower power. (Maybe 1.0, falling to .9) Never really saw the neck flash or strobe much either. What gives? Is this tube toast? It doesn't give any other indicators of shorts or problems, and my emissions read low, but still good.
