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ok so there is a problem in that loop since there is only 125v on one side of that resistor when there should be 135v and im sure that is the correct resistor since its near the video output tube. so being another video tube changed nothing then its safe to say either the 135v source coming from the audio tube could very well be the bias setting resistors at or near that tube or maybe what i read in that magnavox trouble shootlng guide that the 140 source is low because of a resistor in the power supply and its listed as low brightness.
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