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#13
11-29-2025, 12:58 PM
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So I found that the boost voltage derived from the Horizontal Yoke pulses is quite a bit too high. In order to get the width to cover the whole screen, I end up with close to 600V boost, when I am supposed to be getting around 500-530V.
When I changed the width, it changes the boost voltage, and the boost voltage feeds the G2, which is why changing the width also changes the brightness. I don't really understand this. Is it by design? Should the loading on the boost rectifier determine its voltage? And if so, should it be this wide of a margin? You can see here where the boost is created. I assume it's rectifying the H yoke pulses as there is no other source I can see. 
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