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Degauss and hard drive
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Avinitlarge:
I have a small concern. Will the degaussing coil affect the hard drive?
endrien:
Only if its very close to a hardrive. I've ran a decently powerful magnet over the top of my laptop and it did nothing.
DJ_Izumi:
A PC CRT monitor often sits no more than a foot or two from the case that houses the HDD.  The degause doesn't damage that.  Of course the HDD is inside the case which acts as a faraday cage.  I wouldn't risk putting the HDD barebones directly adjactent to the monitor or something.  But if it's in the case and there's a bit of distance, I wouldn't be worrying.
mvsfan:
The magnetic field is about 8 inches to a foot out from the monitor, thats all. You can find out easily where the field stretches to by taking a speaker magnet and moving it closer and closer to your monitor until you see a slight color change adjacent to the magnet. when you find that, that is the beginning of the magnetic field of the monitor.

basically, you want your harddrive outside of that.

and if you have any doubts like a Dynamo with the pull out pcb shelf, always remember that any steel plate acts as a RF sheild.

basically, if your uncomfortable after the test, go find a thin steel plate big enough to mount between the monitor and the bottom of the cabinet and you will be set.
mvsfan:
one thing to note though is dont tempt fate and keep moving the magnet closer even though you see the change cause at best youll have to degauss it at worst you can do damage to it.
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