G07 Arcing in neck socket, killed a tube!

Peale

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This is following a general rebuild. As such, I didn't test this chassis before rebuilding it.

As soon as I turned it on, I had this huge electrical arc in the neckboard. At first I thought it was a broken socket, so I replaced it with one from a TV. Which looks weird, BTW, the new tech with the old monitor....

And then I hooked it up again, and it promptly cooked my tube.

Thinking I somehow had a bum tube (since it gets moved around a lot) I used my good cocktail tube setup, and the arcing started again. Hopefully I stopped it before it killed the tube.

I marked the original socket, thinking I might be able to fix it. If I'm looking at it correctly, it's the G2 voltage pin.
 
Well, that was quick. I figured out what was wrong.

With the neckboard otherwise appearing fine, I traced the path back to the chassis. Which led me to the adjustment knobs for the screen voltage and focus. What do I find?

The ground wire was broken off. Once I repaired that, it's working fine.

Still killed my tube, but I learned a valuable lesson. I'll check that before firing up any G07s from now on.
 
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