I've been running the 621 a few hours each nite on a test pattern, and I've noticed the resolution has pickup up nicely. Looks to be climbing past 3.75 mhz, and the horizontal tics are gone.
I measured the 2nd anode, and the voltage is 9kv. Is that too high for the crt?
I'm guessing the CRT and the flyback are burning in. Any guesses out there as to why the picture quality is improving?
