I checked on the price of the 1L20.  It's $335

from On-Trak Photonics, Inc, Lake Forest, CA.


This is not an inexpensive solution, at least at this time!


John





To: psn-l@..............

From: John or Jan Lahr <johnjan@........>

Subject: Fwd: new Wood-Anderson in Trieste


The clever, position-sensing system described by Dario Slejko (see below)
may be of

some interest to amateurs as well.  Note that the URL for Sitek
given on his

web site should be:


http://www.sitek.se/


Cheers,

John




From:
Dario Slejko <dslejko@..............>



Dear all,

a digital acquisition system for the Wood-Anderson seismometer has
been

designed in Trieste by by collegue Francesco Gentile

(fgentile@................ The system is now operating and you can
read

info about it at:

http://doga.ogs.trieste.it/doga/risk/woodanderson/index.html

Best regards,

Dario Slejko




--------------------------------------------------------------

Dario Slejko

Istituto Nazionale di Oceanografia e di Geofisica Sperimentale

Borgo Grotta Gigante 42c, 34010 Sgonico (Trieste), Italy

tel. +39 040 2140248; fax +39 040 327307

e-mail dslejko@..............

--------------------------------------------------------------