Hi Uwe we still have an old 251 here although we don't use it anymore. It was run from a PC and I will get the software together to forward to you. Once I know how much space is required I may either mail a zip file or try to load it onto the CGS ftp site. Will get back to you once I know more. Bruce Dr Bruce Eglington Saskatchewan Isotope Laboratory Department of Geological Sciences University of Saskatchewan 114 Science Place Saskatoon, SK S7N 5E2, Canada tel. (306) 966-5732 fax. (306) 966-8593 email. [log in to unmask] -----Original Message----- From: Stable Isotope Geochemistry [mailto:[log in to unmask]] On Behalf Of Uwe Horstmann Sent: Wednesday, January 19, 2005 6:11 AM To: [log in to unmask] Subject: [ISOGEOCHEM] MAT251-Apple Dear all, the long and fearfully awaited day has now finally descended on my laboratory. The Apple IIe, so far bravely controlling our MAT 251, has stopped talking to the instrument; the IEEE interface card inside the Apple has ceased to perform and this, of course, renders the whole mass-spec unusable. Naturally, the first idea coming to mind is to put a PC onto the machine, but there is no suitable software available here in South Africa. I would like to at least test whether an old DOS version of Isodat works on my old MAT 251. Any suggestion of how to sort out this problem will be welcome; ideally, I would be looking for someone who may have had a 251, done away with it long ago, but may still have the old CDOS / Isodat software somewhere in a long forgotten cabinet and would be willing to part with it. Needless to say, there is no support by the well known manufacturer of this instrument any longer. Thank you all regards and cheers, Uwe -- Dr. Uwe E. Horstmann Council for Geoscience 0001 Pretoria, South Africa Tel.: +27 12 841-1361, Fax: -1278 Cell: 082 4083212 e-mail: [log in to unmask]