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still not satisfied.
I chaged the pic format, so there would be a margin all around the pic (cant recall which format but it was on the convert box).
in this smaller format I could see the pic was clearly not centered, so I centered with the horz centering pot.
switched back and now I have the dark bar on the extreme left edge.
Now the Raster is fine (full screen) its just the pic that causes the dark vert bar on the left.
I did some more reading and I am back to looking at blanking. There is a triode section of a 6GH8 that takes a pulse a the grid, and is coupled from the plate to the cathode of the chorma driver tubes.
IF for some reason the tubes were cut off too long I assume this is what it would look like.
But there is just not a lot of parts involved, so I will be checking them AGAIN and doing some tube rolling.
I guess I could compare the CRT grid voltages to the composits video signal on my dual trace scope and see if they line up.
I threw my net over on ARF and fun with tubes to see if any one else has some input on this dog.
Just for fun I am going to try the one OTA transmission on UHF and see how it looks. the problem is its such a weak station that the pic is awful.
I am just try to eliminate the converter box as an issue (it works fine on other tv's).
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