Tin Whiskers... Hmmm, I have an Admiral 26R12 that I restored. It was working well on the bench and then all of a sudden, I heard a snap and lost vertical linearity. It took a long time to figure out (didn't check the obvious) that the vertical linearity pot had tin whiskers. I removed the pot, cleaned and brushed it and all was good. What a relief that was!
Nice job.
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