10 Aug
1999
10 Aug
'99
12:10 p.m.
Sorry Allison, I meant to say the head was heavily coated with oxide from
the disk platter, not oxidized itself! :)
I just removed the two lower heads, and neither comes clean with 91%
alcohol. Now I'm just soaking the heads in a glass in the alcohol, and
waiting overnight to see if they'll then come clean. If that fails, I was
wondering about a toothbrush with just 91% alcohol.
10 Aug
10 Aug
4:55 p.m.
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
9267
days inactive
9267
days old
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jlwest＠tseinc.com -
jpl15＠netcom.com