[time-nuts] time-nuts Digest, Vol 69, Issue 31

[Chuck Harris]

Bob Camp wrote:
> Hi
> 
> I've found that in some cases you need to run multiple passes over multiple
> days to degauss a badly mag'd monitor. I'm sure that at some point they do
> indeed become "irreversible". So far I haven't found one that a hula hoop
> sized coil won't eventually fix. 
> 
> Bob
Sadly, I have.  I used a large degaussing coil that could be passed over the
entire monitor, a smaller bulk tape demagnetizer, and the internal degaussing
coil.  I could never get rid of the rainbow fringe around the outside of the
CRT.

-Chuck