Did I detect a Freudian slip here - I recall that Finnigan MAT sold
the 250 IRMS
Anyway, from one of those who well remembers the orange giants while
at the BGR, there was/is a port of the software from the HP 9815 to a
PC base (some basic pre-386). Track down Ingolf Dumke at the BGR and
he may be able to help. There were others who did the same, but in my
demented state - triggered by lascivious thoughts of the ol' 250
workhorses - I can't remember.
Gee, I can remember Eckhard Faber and I though scouring Germany for
the remaining HP 9815 back in the mid- '80's.
>Hello, November 2, 2009
> We have a Varian MAT 250 isotope ratio mass spectrometer (SN#
>8223). This instrument was manufactured in December 1979, a year or
>more before MAT was purchased by Finnigan. Unlike the subsequent 251
>model, which used an Apple II computer, our MAT 250 uses a Hewlett
>Packard 9815a calculator/computer to operate the mass spectrometer.
>The hp 9815a calculator/MAT 250 system came with a set of programs on
>DC 100 cassette tapes. Some of these tapes were pre-programmed by hp,
>and some were pre-programmed by the MAT factory at Bremen.
> Does anyone still have a Varian/Finnigan MAT 250, or a Hewlett
>Packard 9815a calculator/computer, or any of the program tapes for
> Thank you, very much!
> Sincerely, Frank Simpson
>University of Wisconsin, USA
>[log in to unmask]
Michael J. Whiticar
School of Earth and Ocean Sciences
University of Victoria