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looks like the blanked out picture had to do with the 3rd IF tube, subbed it out and all is well again. I will check it for gas or grid emissions.
I dont know why flipping the tuner would allow it to work with the old tube, but it was very consistant. I will have to cycle it a few more times before I am satisfied the problem is fixed.
I am still no completly satisfied with the line pairing, I thought the new vert tube fixed it, its better but still a bit shaky (have to diddle with the vert hold to work out the pairing).
Guess it would be a good idea to reflow the solder stakes.
I did try a convergence plug (takes the conv board out but keeps the vert working) no joy same pairing so that clears the conv board.
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