I got this from my IBM CE this a.m. Try to get 97% pure isopropyl alcohol
Regards, John Pooler Customer engineer At 03:15 PM 7/19/2006, you wrote:
The pint can I have lists isopropyl alcohol, some carbon tet, and a few other chemicals. If the alcohol is Good Enough, I can get that.=20 If you happen to be sending a note to your CE, a quick check would be appreciated.=20 David Boyes Sine Nomine Associates > -----Original Message----- > From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On > Behalf Of Jim Bohnsack > Sent: Wednesday, July 19, 2006 2:30 PM > To: [email protected] > Subject: Re: More Ancient History: source for 3420 cleaning fluid? >=20 > I'll bet that you could find a retired CE to verify that. You could > probably get an answer from IBM as well. Want me to send a note to our > CE? > Jim >=20 > At 02:10 PM 7/19/2006, you wrote: > >As far as I can recall, DB, the cleaning fluid in the nice IBM pint > >cans, was nothing more than denatured alcohol. IBM packaged it for those > >shops that had an "all-blue" mandate from management as far as IT > >equipment went....:-) > > > >The stiff cotton swabs that you use to clean the head could be replaced, > >I think, by some soft cotton fabric on a medical tongue depressor. > > > >Thanks, too, for doing this recovery work.....are you going to put the > >recovered tape files out anyplace for others to access? > > > >DJ > > > >David Boyes wrote: > > > Does anyone still know of a source that sells 3420 cleaning fluid and > > > supplies? In the process of working through these old tapes from > > > Princeton, I'm burning through the small supply I have of the stuff > > > rapidly (2 pints so far), and still have a few thousand tapes to go. > > > > > > > > > > > > The amount of oxide flaking and just general destruction these tapes > > > have is amazing - gunk everywhere. Hats off to the data recovery folks > - > > > I'd really hate to have to do this all the time. Freeze drying, > careful > > > rereading, multiple retries... sheesh. Phase of the moon for some of > these > > > volumes. > > > > > > > > > > > > Pretty scary that the circa 1970s volumes actually seem to have a > higher > > > readability index so far. > > > > > > > > > > > > David Boyes > > > > > > Sine Nomine Associates > > > > > > > > > >=20 > Jim Bohnsack > Cornell Univ. > (607) 255-1760 >=20 >=20
Jim Bohnsack Cornell Univ. (607) 255-1760
