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well I tried the scope from the video out tube all the way back to the grid of the cathode follower tube (the 1st amp after the detector diode) I think I am still seeing the noise. I am going to try disconnecting the feed line from the detector that goes to that pin of the tube (its on a different PCB so I hope I can just find the wire that connects it) if its noise from the detector, then I assume disconnecting it will clear the screen. then it on the the video board, yuk.
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