Dear Colleagues,

Our 23.5-year-old Finnigan MAT 252 is (again) ailing, this time due to 
an issue with a gauge controller, specifically an old Leybold-Heraeus 
model (Combivac IT 251). Looking at old ISOGEOCHEM messages, we see that 
similar issues have arisen elsewhere.

Does anyone have (or know of) a decommissioned 252 from which we might 
extract this controller, or have an extra of this controller laying 
around the lab, or boxed up somewhere gathering dust (I know, a long 
shot....).

We also are considering doing some work ourselves on the faulty 
controller, but we lack a schematic to work with. Does anyone have the 
schematic for the 1993-vintage IT 251?

Thanks, and best regards,

Gray Bebout

----

Gray E. Bebout, Professor
Department of Earth and Environmental Sciences
Lehigh University
1 West Packer Avenue
Bethlehem, Pennsylvania 18015-3001
Office phone: 610-758-5831
Laboratory phone: 610-758-6168
Research webpage: http://www.lehigh.edu/~geb0/geb0.html