Re: magnetically quenched gaps

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Ben McMillen by way of Terry Fritz <twftesla-at-qwest-dot-net>" <spoonman534-at-yahoo-dot-com>

I'll have to argue here.. I've taken apart newer drives and
they do in fact have the magnets.. larger double height
drives (the older ones) often had stepper motor
arrangements for head movement.. in the end it's all just
luck of the draw.. some have them, some don't.. 

Coiling In Pittsburgh
Ben McMillen

--- Tesla list <tesla-at-pupman-dot-com> wrote:
> Original poster: "rheidlebaugh by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <rheidlebaugh-at-zialink-dot-com>
> 
> Those strong magnets are only in the old low density
> large size hard drives.
> The newer ones dont have them. You are correct they are
> real strong magnets.
>     Robert  H
> > From: "Tesla list" <tesla-at-pupman-dot-com>
> > Date: Tue, 07 May 2002 18:19:19 -0600
> > To: tesla-at-pupman-dot-com
> > Subject: Re: magnetically quenched gaps
> > Resent-From: tesla-at-pupman-dot-com
> > Resent-Date: Tue, 7 May 2002 19:01:29 -0600
> > 
> > Original poster: "Brian by way of Terry Fritz
> <twftesla-at-qwest-dot-net>"
> > <ka1bbg-at-webryders-dot-net>
> > 
> > Hi, you can find potent rare earth magnets in hard
> drives. i just took a
> > commercial hard drive apart and there were 4 awesome
> strong magnets and
> > quite large. I had to use a pry bar to get them apart.
> be careful!! one of
> > my friends put one on a finger jokingly and then
> started to scream it took 4
> > rescue workers to remove the magnet(he was in dyer
> agony for 7 minutes!)the
> > finger is ok but the shape will never be the same. cul
> brian f.
> > ----- Original Message -----
> > From: "Tesla list" <tesla-at-pupman-dot-com>
> > To: <tesla-at-pupman-dot-com>
> > Sent: Tuesday, May 07, 2002 10:25 AM
> > Subject: Re: magnetically quenched gaps
> > 
> > 
> >> Original poster: "rheidlebaugh by way of Terry Fritz
> <twftesla-at-qwest-dot-net>"
> > <rheidlebaugh-at-zialink-dot-com>
> >> 
> >> edmond scientific carries a large assortment of rair
> earth magnets, but
> > old
> >> speakers are a much better price. Magnitron magnets
> are small not 100 mm.
> >> Robert  H
> >> 
> >>> From: "Tesla list" <tesla-at-pupman-dot-com>
> >>> Date: Mon, 06 May 2002 21:06:02 -0600
> >>> To: tesla-at-pupman-dot-com
> >>> Subject: Re: magnetically quenched gaps
> >>> Resent-From: tesla-at-pupman-dot-com
> >>> Resent-Date: Tue, 7 May 2002 00:08:50 -0600
> >>> 
> >>> Original poster: "Mr Gregory Peters by way of Terry
> Fritz
> >>> <twftesla-at-qwest-dot-net>" <s371034-at-student.uq.edu.au>
> >>> 
> >>> Robert,
> >>> 
> >>> Please let me know how it goes. I wouldn't have
> thought "normal" magnets
> >>> would be strong enough for this purpose. I think rare
> earth magnets are
> >>> needed. However, if "normal" magnets will do, you can
> get some pretty
> >>> decent ring magnets from microwave oven magnetrons.
> >>> 
> >>> Cheers,
> >>> 
> >>> Greg Peters
> >>> Department of Earth Sciences,
> >>> University of Queensland, Australia
> >>> Phone: 0402 841 677
> >>> http://www.geocities-dot-com/gregjpeters
> >>> 
> >>> 
> 
> 


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