Museum of the Game® & International Arcade Museum® Forums

Is there anything tube related that could cause the image to randomly lose vertical hold on a k7000 monitor? I have a tube that looks spectacular except after 5 minutes or so the image starts rolling. It is NOT NOT NOT a chassis or remote board problem. 2 different chassis and 2 different remote boards exhibit the same issue on this tube, but are rock steady on a different one. Do any of the neck pins control v hold? The pins are kind of wonky and I had the focus pin break off (but was able to rig it thanks to an old video @zenomorp did on his channel). So I'm wondering if another pin could be loose or something causing the issue.
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