2. home-theater
  3. 1162181392

Can magnets permanently damage CRTs?

I have a 1978 RCA XL-100 TV that I use in my main HT system. It's obviously a CRT and it's solid state. Without naming names, I'll just say that a demonstration of a magnet's effect on the picture tube was performed. Now the picture remains distorted even though the magnet is far away from the TV.
My question is whether the magnet just temporarily affected the CRT's stability or is the CRT ruined?
hals_den

Showing 3 responses by hals_den

hals_den OP
77 posts
 
I just bought a heavy duty degausser on ebay for $24.
hals_den OP
77 posts
 
Thank you guys for your advice. I did "the google" on CRTs and magnets and I will try to degauss the picture tube. I tried a tape head demagnitizer and it changed the color distortion. I think I'll just grab the next discarded TV I find on the street and open it up and see if it has a degaussing circuit I can cannibalize, and make a degausser.
Howell
hals_den OP
77 posts
 
The heavy duty $24 ebay degausser worked and some. The picture on the RCA XL-100 is even better than before the magnet experiment.
Thank you all for the advice.
Howell
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