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#11
11-02-2022, 02:47 PM
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The IF is the most sensitive tuned area of the set, having RC constant circuits, that are going to react to voltage and temperature, and you have no clue as to what was done to it before you got it.
It's not unusual for something that is out of alignment to briefly pass a signal as it starts up while voltages and things are cold, but stop as it gets into normal ranges. Thus alignment is done when the set is warm. HELL, all my sets that are able to tune in stuff take 60-90 seconds before the can tune correctly, then they run OK for hours, what you see in the first few moments does not mean anything.
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