G
Graham W
Guest
"Watson A.Name "Watt Sun - the Dark Remover"" <NOSPAM@dslextreme.com>
wrote in message news:bor1aa$4qg7b$1@hades.csu.net...
rotatable clip (unlikely in your item) OR there may be another coil in
series with this one. Review the horizontal deflection circuits of as
many TVs and monitors as you can find and you will see it is a very
common component.
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Graham W http://www.gcw.org.uk/ XP1800+ Page added, Graphics Tutorial
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Dorset UK Astro Society's Web pages, Info, Meeting Dates, Sites & Maps
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wrote in message news:bor1aa$4qg7b$1@hades.csu.net...
The core in the coil may screw up and down OR the magnet may in aGraham W wrote:
Watson A.Name - Watt Sun, Dark Remover wrote:
I pulled some ferrite core chokes out of a Compaq monitor and one had
a magnet on the top, held on by heat shrink tubing. I measured the
inductance with the magnet on, and it measured 8.2 uH. I cut off the
HST and removed the magnet, and the inductance shot up to 35 uH. I
think this has something to do with varying the permeability.
I don't remember seeing anything about this kind of choke in any
electronics manuals, so I thought I'd do a web search but I came up
with nothing. I tried magnetically polarized inductor and magnetic
core inductor, but neither gave any info that I could find. Do you
know what they call these devices? Thank you.
It is a horizontal linearity control.
But it doesn't have any adjustment.
rotatable clip (unlikely in your item) OR there may be another coil in
series with this one. Review the horizontal deflection circuits of as
many TVs and monitors as you can find and you will see it is a very
common component.
--
Graham W http://www.gcw.org.uk/ XP1800+ Page added, Graphics Tutorial
WIMBORNE http://www.wessex-astro-society.freeserve.co.uk/ Wessex
Dorset UK Astro Society's Web pages, Info, Meeting Dates, Sites & Maps
Change 'news' to 'sewn' in my Reply address to avoid my spam filter.