PSN-L Email List Message

Subject: Fwd: Surplus 3-Axis Seismograph System Available For Free.
From: Larry Cochrane lcochrane@..............
Date: Tue, 23 Oct 2012 20:56:11 -0700

Hi Everyone,

I received the following message from Galen Dutch regarding some used equipment that 
some people on the list may be interested in. I told him I would take the sensors and 
discriminators and pass along the information to see if anyone would be interested in 
any of the other items like the drum recorder(s) and amplifiers.

Galen has joined the list so feel free to ask any questions about the equipment here.

Larry Cochrane
Redwood City, PSN

-------- Original Message --------
Subject: Surplus 3-Axis Seismograph System Available For Free.
Date: Sun, 21 Oct 2012 21:40:47 -0700
From: Galen Dutch 
To: LCochrane@..............

Dear Larry
This is a “Plain Text” version of an email that I sent in “Rich Text”,
but it failed delivery. So here’s another attempt.

San Francisco State University (SFSU) will be decommissioning a three
axis seismograph station (using the traditional style of recording on
paper) and all the equipment can be made available Free to any person
or agency –yes that’s right for Free!!!

The station was originally built by me and donated to SFSU back in the
late 80’s. The system uses a telemetry link over a conditioned phone
line from seismometers at a site 5 miles from the campus. However the
phone connection costs about $100/month and budget constraints
prohibit further expenditure for operation.

Because the university acquired the station as a donation from me, (it
was not a formal purchase) it is not subject to the government
regulations for disposal of state-owned property.

The system was operational before decommissioning and here’s a
description of what is available:

•	A modular station unit containing three Teledyne/GeoTech Model S-13
seismometers, a “Compact Remote Station” Model 45.50 with amplifiers,
power supply, and the telemetry system for a phone line connection.
The modular station unit is actually a cubical steel frame with
everything secured inside for strong motion resistance.

•	A three-channel Teledyne/Geotech Model 49.03 Discriminator rack.

•	Four Teledyne/Geotech AR320B Helicorder amplifiers. One amp has
three separate channels all in one chassis and the other three chassis
have only one amp inside.

•	A modified version of the old fashioned style three drum recorder
equipped with Teledyne/GeoTech pen motors for each channel. Drum
rotation is 1 rev. per 15 minutes.

•	Recorder control unit for the 3 drum recorder. This unit is a
chassis with controls for the drum rotation, lateral movement of the
pen motors, and power for the heated stylus pens.

•	A metal framed plexiglass display case for the drum recorder and
mounted on top of a steel framed table with casters.

•	Manuals/schematics are included for all the Teledyne/GeoTech
components listed above.

Please feel free to forward this offer for anyone who might be
interested in finding a home for this professional grade system.

Galen L. Dutch
1734 Bay Street
San Francisco, California – 94123
Phone: 415-563-2658 / Email: GLNDutch1@.........


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