14" hard drive refurb....

From: Jay West <jlwest_at_tseinc.com>
Date: Wed Aug 11 09:14:19 1999

No, I only soaked them for about an hour. They quickly reached a point where
no more oxide will come off with a foam-type "q-tip". Still, there is so
much oxide left that won't come off... I'm sending the heads in for work
today.

Thanks for the tip!

Jay West
-----Original Message-----
From: John Lawson <jpl15_at_netcom.com>
To: Discussion re-collecting of classic computers
<classiccmp_at_u.washington.edu>
Date: Tuesday, August 10, 1999 11:58 PM
Subject: Re: 14" hard drive refurb....


>
>
> JAY!!! I **hope** you read this before tomorrow! Please remove
>the heads from the alcohol right now... it is unpredictable what
>long-term immersion in 91% isopropanol will do to a head assembly..
>but I doubt anything good.
>
> It is possible to soften and dissolve the coil binders, and
>possibly to delaminate the magnetic core... and at the least to
>impregnate the coils with alcohol, which will then be released as a
>vapor or liquid contaminant over time... maybe carrying goo from the
>stack.....
>
> I hope that nothing evil comes of this... but overnight soaking
>in **anything** is >not< the way to clean up magnetic heads.
>
>
> Hoping for the best..
>
>
>John
>
>
>
Received on Wed Aug 11 1999 - 09:14:19 BST