I write software at my job (which I will be retiring from in 71 days), and almost always problems come down to some little syntax error. I thought I would check all the ground connections one more time, but this time I preceded my efforts on my knees before the Lord. Needless to say the service ground connection, which I know I really tightened previously, was loose a quarter turn or more. And that did it! Not a flicker anywhere.
John, I really appreciate your help and encouragement. There is no limit to what we can do when we share our knowledge.
Alright!!! That's great chuck. I'm glad you found it. Good thing too as those things get worse with time. Congratulations on your upcoming retirement.