I wanna pipe in about magnets. Back in the Stone Age, when I was still running a Mac SE and Pagemaker 4.2 was my main application, I owned a set of those little black metal Radio Shack stereo speakers that handled a thumping 40-watts. They were like my satellite speakers for my stereo, and I placed them on my desk. After re-arranging things around, I ended up with those speakers really close to my little ET-Mac. I sat down for a work session one afternoon and almost excreted a concrete chicken when I saw that the image on my monitor was badly bent and twisted!
I didn't know what to think until I happened to move the speaker on the right side away from the SE. When I did, the image on the monitor straightened up forthwith. I had my eyebrows pop up almost to my hairline, muttering "I'll be d****d." The fact that the speakers were enclosed in metallic cabinets had nothing to do with the problem -- the metallic enclosures were non-ferric and thus, not capable of conducting magnetic fields. >From that time on, I've never allowed speakers that close to my Macs or my monitors. Allen ----- Clark Martin wrote: > > At 2:25 AM -0400 8/15/02, the pickle wrote: > >At 23:17 -0700 on 14/08/02, Obi-Wan wrote: > > > >>the pickle wrote: > >> > >>> At 23:32 -0500 on 14/08/02, Ryan wrote: > >>> > >>> >the heck of it. (i.e. Placing a telephone on your Seagate Barracuda II HD > >>> >will most likely end up in you reformatting it.) So, here's your > >>>Mac tidbit > >>> > >>> Anyone have a clue why this might be, and whether it requires a corded or > >>> cordless (or cellular) telephone? > >> > >>Normal phones have magnets in the handset that can mess up a disk. I have a > >>magnet reformatting tool. Same principle. > > > >Yeah, that sort of figures, but those magnets aren't very powerful. A > >magnetised screwdriver has never caused me any problems and I'd think a fone's > >speaker magnet would be somewhat less powerful. > > Not as much a matter of how powerful the magnet is but how contained > the magnetic field is. A speaker magnetic field is tightly confined. > Anyone who has ever disassembled a hard drive (I've taken apart > dozens) knows the voice coil positioner magnet inside one is about > the strongest magnet you'll come across in home equipment. And that > is about an inch from the disks. Oh and the spindle motor also has a > nice strong magnet and that is often INSIDE the hub holding the > disks. But in either case the magnetic field is is well confined > across a small gap. A magnetized screwdriver isn't all that strong > but the field is rather large. > > Most devices using a magnetic field keep it confined as it is much > stronger for doing what is needed). > -- > Clark Martin > Redwood City, CA, USA > Macintosh / Internet Consulting > [EMAIL PROTECTED] -- Quadlist is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Enter To Win A | -- Canon PowerShot Digital Cameras start at $299 | Free iBook! | Support Low End Mac <http://lowendmac.com/lists/support.html> Quadlist info: <http://lowendmac.com/lists/quadlist.shtml> The FAQ: <http://macfaq.org/> Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/quadlist%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
