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#1
04-08-2023, 02:32 PM
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The contrast control in this set is really odd. They feed the output of the detector from the back of the set to the front through coax, use a potentiometer to vary the level, and run another coax line back to the video amp.
That's what the tube is running down the middle.   Wouldn't it be much easier to just vary the bias/gain on the amp? 
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