Thread: 66 zenith high voltage dies after 30 minutes
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Old 09-23-2009, 10:02 AM
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Jeffhs Jeffhs is offline
<----Zenith C845
  
Join Date: Feb 2003
Location: Fairport Harbor, Ohio (near Lake Erie)
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Quote:
Originally Posted by bgadow View Post
I had a CTC-31 that would go bezerk, it would lose HV with a pronounced "thump", the neck of the crt would glow purple, ouch! Turned out to be a bad video amp tube. I don't know why, I just know that was it.
What happened to the CRT when the video amplifier tube went bad? If, as you say, the neck of the CRT glowed purple, I would almost suspect the defective video tube had somehow caused the CRT to become gassy. Did the set work after replacing the tube or did you have to replace the CRT as well? Hmmm.
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Collecting, restoring and enjoying vintage Zenith radios since 2002

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