11 Mar
2004
11 Mar
'04
6:46 p.m.
On Fri, 12 Mar 2004, SHAUN RIPLEY wrote:
This is fixable. It is caused when some material is
magnetized. The process to fix it is called
'demagnetizing'. The theory is simple: You apply a
changin magnetic field (for example, that created by a
coil with 60Hz AC), and graduately decrease the
strength of the magnetic field (for example, you pull
the coil further away from the monitor while moving it
in circle). It will fix the problem. Some monitor or
TV has build in circuit to perform the process.
In my experience, this is a lot trickier than it sounds. I would first
practice on a CRT that you aren't fond of before moving on to the one
you're trying to rehabilitate.
--
Sellam Ismail Vintage Computer Festival
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