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Degauss and hard drive
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protokatie:
Fun experiment for you kiddies: Put a 3.5 floppy on top of your monitor and hit the degause button 50 to 100 times... Guess what. The disk will be fine. Just dont be MOVING the disk WHILE you are hitting the degause button, that will ---fudgesicle--- it up (magnetic flux).

BTW Aluminum is a good electrical conductor as well as a good EM inductor, so it should work well as a faraday cage. If you are REALLY worried about data loss, get an old steel food can (one big enough to put the drive in) and use that. Hell, even better, shield the monitor, and any potential interference to anything (not just HDDs) will be eliminated.

No offense, but people worry way to much about a very small amount of EM way too often. But I guess it is better to be safe than sorry. (Also, used steel food cans cost nothing, but you have to actually BUY sheet metal...)

EDIT: No matter what you decide: A faraday cage has to be grounded to work properly. The point of it is to absorb EM and convert it into electricity. If grounded it can "vent" the electricity (doesn't really work quite like that, but the cage needs to be grounded to work fully).
Avinitlarge:
Well, I wasnt expenting so many replies. So to be on the safe side, I will put the HD in a aluminium case and ground it. It will be moumted about 60cm away from the tube.
Beretta:
thats a really good tip protokatie, infact i would never have thought of using old cans for their metal, but i might just make me some brackets out of them, was gonna use old sheet metal from dead cdroms and slot covers but food cans would be a easy source, why did'nt i think of that.  :notworthy:

Avinitlarge there is no reason to put them in an aluminum cage, 99% of the drives out there have their housings made out of aluminum already.

i did'nt know aluminum inhibited magnetic fields, but if thats the case then you should be fine, the housing on the hdd should be grounded already through the power connector, if you're extra worried run a jumper cable from the power supply's housing to the hdd's housing.. theyed be electrically connected in a metal case anyway, and the powersupplies housing is grounded.
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