Meck XB-702 restoration

[bandersen]

Originally Posted by Tom9589

Have you considered a solid state replacement for the 6AL5?

Yes, but haven't tried yet.

Originally Posted by Kevin Kuehn

I've got a dumb question. If you disconnect the sync from one or both sweep oscillators can stabilize the picture enough to tell if the 60 cycle distortion is reduced?

Not dumb at all. I did try but couldn't tell.

[Kevin Kuehn]

How about disable the vert or horizontal oscillators alternately and see what the remaining horz or vert line does. It's hard to imagine the 60 cycle AC is leaking in from multiple directions, although it appears to be.

[vortalexfan]

I know with my Meck TV it gave me some interesting issues, but nothing like the issues you're having with yours.

Its kind of strange that you're having issues with 60 Hz hum in the video stages on your TV, I don't think I had that issue with mine, although mine is about a couple years newer than yours though, and a little different circuit design.