#1
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Yellowed Zenith dials
Is there a good way to clean these 1969 Zenith dials? I tried it once on a 1971 dial, but the retaining ring got mangled and it would not hold the dial against the plastic anymore.
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"If you wish to make an apple pie from scratch, you must first invent the universe." -Carl Sagan |
#2
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If it's clear plastic that's yellowed, there's not much you can do. Otherwise... soap and water with a toothbrush?
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#3
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For bulk cleaning we used ammonia & water. Would cut through
almost anything & keep you awake. 73 Zeno LFOD ! |
#4
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The channel plates of every one of those knobs I've ever seen was that color even the mint condition ones....I'm fairly sure they are meant to be that yellow color.
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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 |
#5
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Quote:
I have a few and may try some hydrogen peroxide on the outside-facing part only. If that is a surface layer of yellowed material, it may help.
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"When resistors increase in value, they're worthless" -Dave G |
Audiokarma |
#6
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IIRC the dial numbers were somewhere between yellow & red.
Non spotlite dials had black numbers on silver. The fine tune knob was CLEAR. Gold was often used also but I think not on this one. If the FT knob is yellowed its prob from UV light & not repairable..... 73 Zeno LFOD ! |
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