On May 17, 2012, at 17:09, Alexander Schreiber <als at thangorodrim.de> wrote:
Depends on the TV. I would expect modern LCD TVs to be
most unimpressed
by magnetic fields. A CRT - especially a color one - would probably not
like it. Quick way to screw up the picture on a CRT color TV: run a
magnet over the front of the tube, thus magnetizing the beam mask.
I had a pair of Bose 901s sitting 2-3 feet away from a color TV, and it color-shifted half
the screen. Powerful magnets on those.
The degaussing pulse on power up eventually clears it
up again (after a
few repetitions).
True, if you are lucky enough to have a TV with a degaussing pulse. Many cheap ones
(including the one above) do not, and I've spent hours fixing up color TVs with a
handheld magnet (back when I was younger and knew not how to make or buy a degaussing
coil).
- Dave