I put this set aside for a longgg time but during that time I acquired a Merit MWC-1 width coil. When I installed it, I still had the kink in the raster. Great. But remembering that the first time I was able to get the white line to disappear was with a capacitor/resistor combination substituting for the coil, I clipped cap sub box across the coil I had just installed. After much, much more fiddling and refiddling with all of the horizontal adjustments I have this:
Perhaps not surprisingly, after the readjustment, when I remove the capacitor (.015 gives the best result) from across the coil, it reverts to a scan similarly distorted as the first picture in post #4. I guess at this point I'm soliciting opinions as to what you would do. There's obviously still something wrong (I eventually did try a substitute yoke, same results) but as long as I've found a way to make the set work, should I just stop looking and call it good? After two years I'd kind of like to get it out of the workroom more than I'd like to play sweep anomaly detective.