Screen Size Pulsates - WG 19v1001

Dr Galaga

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Here is an issue that I have not seen mentioned before and could not find anything while searching (or I'm blind).
I have a WG 19v1001 monitor that a fellow member took out of a Space Invaders UR and put it in my Space Invaders Deluxe UR. I am having two issues with it:

1) The size is "pulsating." The size of the image slowly increases in size (a little over an inch) and then jumps to the smaller sizes, slowly increases and then jumps to the smaller size, etc. The speed depends on the brightness and amount of objects on the screen- the brighter and more objects on the screen, the faster it pulsates.

2) Less importantly, the monitor doesn't display everything at the top and bottom of the screen. No Player 1, High Score, Player 2 titles at the top and no ships left at the bottom.

I played with the various pots and they didn't do anything to make the two issues better (brightness made it worse).
 
UPDATE:
I installed the cap kit the other day. I also pressed together the parts of the anode wire, since they were loose (whatever is halfway between the cap and the board). That fixed my blooming. I adjusted the B+ since I was in there (it was only a couple volts off). Now it looks like I will have to replace the width coil. I can't get any of my tweekers to catch on anything inside, the head seems to be stripped. It's kinda hard to score 300 point saucers when you can't see the player information at the top of the screen!
 
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