Admirial 30A1 white vertical stripe

[mepurina]

More testing.....
If I pull the signal off the antenna input, the white bar goes away. Only snow appears on the tube.
If I tweak the horizontal hold so the picture unlocks horizontally, the white bar stays in place and does not track the horizontal sync bar. See photo.
Again, when a direct video signal is applied after the detector tube to the video amp, the picture looks great and there is no white line.
Bar only appears when video off the detector feeds the video amp.
Since the white bar does not track the horizontal sync pulse, I am now really confused. I originally thought the white bar was part of the picture as it does show up that way on the scope, but looking at the photo I took off the CRT, the picture information is separate from the video image.