PSN-
    The "Public Seismic Network Newsletter", December, 1991 issue (first and last),
editor: Benjamin Gardner, called for a three-component seismic data acquisition unit
(SDAU) with an acceleration response of 0.00001 - 1.0 g in the the frequency band,
DC - 20 Hz, and a total cost of $500. I only have a hardcopy of this tome, but one
day I mean to scan it and put it on the Web.
-Edward

--
Edward Cranswick                Tel: 303-273-8609
US Geological Survey, MS 966    Fax: 303-273-8600
PO Box 25046, Federal Center    cranswick@........
Denver, CO 80225-0046  USA      E.M. Forster said, "Only connect".




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