Quote:
Originally Posted by Titan1a
My Zenith 7S363 has started developing problems since being electrically restored. I noticed the, formerly bright, 6U5 tube start to noticeably dim. I know these tubes are known to deteriorate but this is unusual to me. Anyone have ideas?
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Was the resistor replaced in eye tube socket? It generally affects the opening and closing of the eye, but stranger things happen. Also check the B+ voltage. The set might appear to perform properly, but the B+ could low.
I have the very same set. It needs a new grill cloth and the cabinet can use a little attention. The tuning eye is a little dark as well.