OK: This is chip again, just when I thought I had all my convergence problems taken care of, this happen last night. I have checked just about all my HV tubes ,V12,13,14,22,23. V-15 (1V2) V16 (6BK4) I do not have setting for on my tube tester chart, and need those settings to test. Some one on another sight said to ck the crt, it might be gaseous, so I connected the original RCA colorama crt and still have the same problem. The blooming only happens when you turn the brightness up to the normal setting, which is about halfway.