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Replacing the interstage micas is a no no unless you want to do a full IF realignment. I have restored a number of RCA sets from 46 thru 52 (before RCA succumbed to cost cutting) and have never found a bad interstage mica.
The realignment is more complicated on these sets and you'll need a good sweep generator and accurate marker to do it right. Split sound sets like the 630 require the job to be done right because of the audio video tracking when tuning. Split sound sets are tuned for best sound and not picture.
When aligned correctly the picture quality is the best on RCA sets. No expense was spared. But patience and perseverance will now be required to bring the alignment back.
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03-13-2017, 11:25 PM
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