19 Jan
2009
19 Jan
'09
10:54 p.m.
Pete
My God... its is so bad... try kerosene with oil or vinegar.
I have here in my Museum, in some condition, 026, 029 and 032 IBM ..
And no volunteers to clean up that stuffs.
May be some in Computer history museum in Mountain View help you. There is a
technician there with 89 years old and he
is good in IBM stuffs, I saw there a 1401 work until today.
See Yah
Jose Carlos
Brazil
take a look the photo I did last august there.
2009/1/19 Pete Turnbull <pete at dunnington.plus.com>
On 19/01/2009 04:23, Mike Loewen wrote:
--
Jos? Carlos Valle - Presidente
Museu do Computador
Fones: (+5511) 4666-7545 e (+5511) 8794-6730
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MAPA DO NOVO GALP?O:
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I'm in the process of rejuvenating an IBM model 29 keypunch, and a
couple of areas have some sort of oxidation on them. The card drum is the
worst:
http://sturgeon.css.psu.edu/~mloewen/CardDrum.jpg<http://sturgeon.css.ps…
The steel parts are fine, but the rest has a white material over most of
it. I'm not sure what sort of metal it is, looks a bit dark for aluminum
but the white material looks similar to aluminum oxidation. What's a good
approach to cleaning it up?
It looks to me like Mazak, which is a zinc-aluminium (and sometimes some
magnesium and copper) alloy used for die-casting. You could try steel wool
or a wire brush but I would bet it's badly pitted and probably needs
machined.
--
Pete Peter Turnbull
Network Manager
University of York
