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Article #14269

TV Picture Tubes and Speaker Magnets

#14269
From: Rodentia
Date: Wed, 12 Jun 1991 19:24
17 lines
1443 bytes
All of this talk of squealing TV's reminds me that I have a stereo speaker too 
close to my TV.  When the green intensity of the displayed picture is low, I  
get a green blob in the lower right (closest to speaker) corner.  Moving the 
speaker when the TV is already on doesn't help much, but moving it when the
TV is off and then turning it on solves the problem.  I assume this indicates
that the TV degausses the tube whenever turned on.

So, am I damaging my TV by operating it in this fashion?  What about the 
speakers?  For reference, it's a 27" Sylvania (about 3 years old).

Also, is there a practical magnetic shielding, or would I need some
yttrium-copper-oxide and a mess of liquid nitrogen ;-{) ?  Thanks.
-- 
Thomas Roden                                      | tom@syssoft.com
Systems and Software, Inc.                        | Voice: (714) 833-1700 x454 
"If the Beagle had sailed here, Darwin would have | FAX:   (714) 833-1900
come up with a different theory altogether." - me |
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From: tom@syssoft.com (Rodentia)
Newsgroups: sci.electronics
Subject: TV Picture Tubes and Speaker Magnets
Message-ID: <1991Jun12.192427.18120@syssoft.com>
Date: 12 Jun 91 19:24:27 GMT
Reply-To: tom@syssoft.com (Rodentia)
Organization: Systems & Software, Inc., Irvine, CA
Lines: 17