PSN-L Email List Message
Subject: Re: Homade Geophone
From: John or Jan Lahr JohnJan@........
Date: Fri, 05 Aug 2005 23:24:12 -0700
I've posted some pictures of a 1 Hz vertical seismometer that leaves
a lot to be desired but is relatively quick and easy to build:
http://jclahr.com/science/psn/wooden/ . If it does a reasonable job
of recording earthquakes I'll post added details.
Public Seismic Network Mailing List (PSN-L)
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