PSN-L Email List Message
Subject: Lehman magnet/coil position
From: Richard Gagnon richg_1998@.........
Date: Thu, 3 Oct 2002 14:33:31 -0700 (PDT)
I hope this does not start another war.
I am building a Lehman and I wonder if the coil on the boom is better than the
magnet on the boom or is it not an issue? From what I have seen, building
seismometers seems to be an art form. Thank you.
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