PSN-L Email List Message
Subject: Fwd: geophone
From: John & Jan Lahr johnjan@........
Date: Thu, 24 Oct 2002 21:54:48 -0600
I've posted quite a bit of information related to making a seismometer
I'll also forward your question to the Public Seismic Network E-mail
as some members may have a lead on an inexpensive, used
For high frequency demonstration purposes, it may be possible to
a strong magnet inside a home wound coil to make your own
From: "alastair mcarthur"
Date: Thu, 24 Oct 2002 21:19:00 -0300
can't find a place to get a geophone. do you know anywhere?
the web site addresses have run out of them.
tried to make one but have difficulty getting a current
induced with home made coil and magnet . any tips?
enjoyed your web site on table top earthquake very clear and
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