Meck XB-702 restoration

[Notimetolooz]

Originally Posted by bandersen

The problem does not go away when I move the CRT away. At least not horizontally. Perhaps it's a little better vertically.

The hum moves slowly with respect to the sync. If I trigger my scope from the line, the hum locks in place.

Oh, I must be thinking of something else. I had a thought that if it did go away when you moved the CRT away that just maybe it was the sweep on the CRT plates that was appearing on the sync signal on the scope and the 60Hz sweep interference on the sync wasn't really the problem. However since you can lock on the line 60Hz the interference on the sync signal does come from that source.