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#31
11-16-2013, 02:06 PM
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I've got 4 1970's color Zeniths and have not encountered any crumbling of neck components....Granted I have only disturbed said neck hardware on one of them.
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Tom C. Zenith: The quality stays in EVEN after the name falls off! What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4 
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#32
11-17-2013, 01:41 PM
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There was one verry common problem with later Zeniths using pulse regulator tubes (6HS5 or 6HV5) for HV regulation. That's the big fat puppy without a top cap that sits near the HV cage. Failure of that tube was the most common problem with these sets back in the day (in my experience, at least).
Symptom was loss of width, loss of focus, and low HV. The tube would fail in service but test good on a tester. Subbing with a known good tube was the only real test for it. Last edited by old_coot88; 11-17-2013 at 02:22 PM. Reason: Corrected "shunt regulator" to pulse regulator
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