Wicked intermittant Amplifone (Ampliphone) issue

Hi All,
 
I have an interesting one that makes you go "OH $%#&".
 
Having been awhile , I flashed up my starwars and after a few hours of running normally, I glanced at the screen, and found a super bright, swollen, out of focus and light greenish game display, with the game running.
 
Since the tube had a deflection loss sometime in the past, there already was a small burn spot, but now its' a lot worse (<1/4"). I installed a Cinelabs transformer in the past to replace a dead/red, which I checked almost right after I powered the game off, and found the ferrite core warm.
 
Cautiously restarting the game with the screen down, I slowly brought the control up with a cross hatch, and it did the same behaviour again, with the brightness up.
 
I'm wondering if I have a bad rectifier in the transformer, a bad focus/screen resistor block (connections are fine), or a tube with an intermittent H-K short. The 24V regulators are fine and have mil-spec metal power resistors replacing (as in Andre's rebuild) the regulator bypass ones now mounted to the main heatsink and the board was fully rebuilt.

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Received on Wed May 11 01:39:51 2011