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I've been gathering the necessary parts to rebuild the couplates. I went ahead and rebuilt K5 which is the Horiz coupling. However after installing the new unit, still no change. When I 1st power it up, there is no horiz sync, and the horiz hold has to be turned about 5 times to sync it. AT this point, I have a full pic but jittery. Within about a min or 2, it loses sync, and the hold as to be retweeked about 1/3 turn every 10 seconds. Finally it gets to where it will not lock, and I have to touch the underside of the coil which is B1. At this point, the horiz hold has been rotated about 5 turns, and the pic does not fill the left side of the screen. After I shut it off and it cools down, I then have to put the hold back in it's original position to get a lock.
On the 6CG7, plate at pin 6 is about 190V, grid on pin 2 is about -30. Plate on pin 1 is about 155. Have tried another 6CG7. Voltages are ok on 12AV5G output. I have another output tube on order.
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