21 May
2012
21 May
'12
1:49 p.m.
Tony Duell wrote:
Yes, some monitors degauss with quite a lound
'clang' (I assume it's the
shaddowmask. flexing. I've never heard a TV that does that.
I think it's the thin steel internal screening can of a computer
monitor that makes the "clang". And the screening is something
that I don't think I've ever seen in a TV. Although, my Sony
widescreen CRT TV (FreeCycle) makes a slight twang sometimes
on power-up.
Tony, do you remember that Tomorrow's World programme when
Raymond Baxter showed us how to distort a TV picture with
a magnet? And the warnings on the next week's episode
where they said "don't try this on a colour TV!". I think
they said that the producer had tried it on a colour set,
and it was OK, so they broadcast it -- without realising
that he'd been lucky, and a stronger magnet would do
bad things.
--
John Honniball
coredump at gifford.co.uk