L15B geophones are made by Mark Products, but the last time I looked, =
they
had a substantial minimum charge.  Mark was acquired by Sercel and their =
web
site is here http://www.sercel.com/Products/frproduct2.htm under =
sensors,
though I don't see the L15 listed, they may be available.

You might find some used ones at R. T. Clark http://www.rtclark.com/ a
purveyor of used geophysical hardware.

However, if you are building a seismograph, you would be a lot better =
off
with Larry's 3-component 4.5 Hz geophones
http://psn.quake.net/geophone/index.html


Doug Crice
Wireless Seismic            http://www.wirelessSeismic.com
12996 Somerset Drive                phone 1-530-274-4445
Grass Valley,  CA  95945  USA    fax 1-530-274-4446
=20

-----Original Message-----
From: psn-l-request@.............. [mailto:psn-l-request@............... =
On
Behalf Of Thomas Dick
Sent: Tuesday, January 04, 2005 10:20 AM
To: psn-l@..............
Subject: source of L15B geophones

Any one know where I could get some of these geophones?

__________________________________________________________



__________________________________________________________

Public Seismic Network Mailing List (PSN-L)