PSN-L Email List Message

Subject: A "old" magnet/coil combo suggestion
From: "meredith lamb" mlamb1@.........
Date: Sat, 12 May 2001 00:04:11 -0700

Hi all,

Back again on the same subject, but only this time with alittle
more teeth, as both items are available for those seeking to
build their first seismometer sensors, or improve a existing
sensor design/approach on their model/s.  

I acquired a number of coils from a E-Bay auction, and am
willing to donate to those wishing to build seismometers.  Once
the pile runs out; thats all their is.  The coils aren't professional
grade material, but are a adoption to a commercially available
four pole or two discrete magnets old computer assembly which I
think is more than adequate as a major part of a overall sensor
unit. Due to postage costs, I'am presently limiting mailings to
those in the U.S.A.  Check out this web site page at:

For those NOT interested in the coils, the magnets themselves
are probably worth obtaining to check out with their own coils.
Of course, thats my own opinion which isn't backed by a lab..

Anyway....all this "might" save some time for the
newbies and oldies, and perhaps even make for a successful
amateur seismic operation where it might not occur at all.

The web site also has references to other varieties of
seismometers etc....just leave off the page064 stuff on
the above address.  

Regards, Meredith Lamb


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Larry Cochrane <cochrane@..............>