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the signal on the grid of 15tp7 seems ok (pin 8)
I don't understand why there is a pulse superimposed probably coming from
horizontal transf to the video signal. automatic frequency control works properly so this pulse doesn't affect the image.
Could you possibly post a photo of your scope displaying the waveform at TP9 , In the area of the 12ET1 Sync separator ?
04-13-2013, 06:25 PM
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