AC In My B-

[Jon1967us]

Originally Posted by jr_tech

I should have been clearer... are you using an oscilloscope or a meter that measures frequency as well as voltage? In other words, how do you know that you are measuring 60 hz AC rather than a legitimate signal?

jr

I have a Hz function on my meter that I have measured 60Hz on a couple tubes, but I haven't checked it on all - that's a good point. On pins 2,3 off the CRT, the AC does jump around a little, and that's probably video signal added to the AC. I'll go back and verify on the sync and CRT what the freqs are. I find that easier than a scope.