Howard, here's a few hints...
You'll need the screwdriver to open the drive... USUALLY a Torx drive. There are usually 6 screws around the perimeter of the drive, and 2 or more "hidden" under stickers on the face of the drive. I circled in red the various places where I removed screw from the one I just harvested to get the lid off:
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Once you get the cover off, you'll see something like this. Where the neobdynuum magnets can be found is circled in red (Note, the magnets had already been removed from this drive!)
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You can either mangle the back end of the read/write head asssembly to get it out of the way, or be neat about it and back out the screw holding the read/write assembly out (I THINK it's usually bastard threaded, not sure though) enough to gently move the heads off the drive platters, and then remove the screw holding it in place completely off.
The magnets themseves are usually held in place with at most 1 screw, and I've seen many drives where they were just in there wedged in place. It can sometimes require a bit of fiddling to get the bottom one out.
Please note - These magnets are STOUT! If you get your finger stuck between them when they wanna connect to each other, it WILL HURT and CAN DRAW BLOOD from pinching!!!
Here's the magnet assemblies I removed from the drive pictured above. The magnets themselves are the smaller bits on the inside of the larger memtal holders. I usually leave them attached to the larger part of the assembly though because the magnets themselves are VERY brittle, and will shatter easily once removed from the support of their backing.
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Hope that helps!
