PSN-L Email List Message
Subject: RE: ebay auction
From: "Doug Crice" dcrice@............
Date: Mon, 26 Sep 2005 06:48:13 -0700
This would be more properly called a drum recorder. I believe that this
unit includes amplifiers suitable for direct connection to a =
There would also be a way to time events. These units were commonly used =
chasing aftershocks, volcanoes, and geothermal events. You load up a =
or so and go off to the site of an interesting earthquake, record the
aftershocks, and find the fault plane.
These systems have been replaced by solid-state digital systems, but =
recorders are nice for display seismographs. You can watch the =
happen without resorting to a computer monitor.
From: psn-l-request@.............. [mailto:psn-l-request@............... =
Behalf Of BOB BARNS
Sent: Monday, September 26, 2005 6:29 AM
To: psn mail
Subject: ebay auction
Teledyne Geotech Portacorder RV-320 Seismograph
Item number: 7549331565 ends Oct 2
I'm guessing that it is a stripchart recorder.
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