Hey Cork...
That sounds like a pretty damn good analysis!
Yeah that HV regulator cathode current was dropping down gradually as the flyback was heating up gradually. I knew the two had to be related, but wasn't quite sure how. Your theory fits like a glove!
Thanks!
Well, have to admit... both of my multimeters are from the Shack. I've had one of them for several years, and the other I got recently. Usually, if i'm in a hurry and need something quick, I'll go there because it's less than three miles away. So far, i've been pleased with these.
I actually do have a Triplett 630 that I got from one of the old WW2 tankers I used to work on. I hardly use it because it already has one crack in the Bakelite case from someone being rough with it. It works great, but I need to buy some more leads for it. Also have a Heathkit IM5228 VTVM, but, it seems I always grab the RS meters... i suppose because they're smaller and easier to grab.
BTW... how is your roundie coming along?