Mauro,
  Just go to   www.ebay.com
It is an online auction of almost everything you can think of.  At any
one time, there is about 4,000,000 items for sale!
You can either buy or sell things.  It is a great way to turn
dust-catchers into cash.  The fees charged for selling an item are quite
small.
Bob Barns


mariotti mauro wrote:
> 
> Excuse me gang...!
> 
> What's Ebay?
> It's a web site where find seismometers or others interesting things???
> 
> Mauro Mariotti
> 
> At 10.57 06/09/2000 -0700, you wrote:
> >The Ranger Seismometer is a seismometer.  If memory serves, the natural
> >frequency is about 1 Hz, but it might have been adjustable over a small
> >range.  It can be used as either a vertical or horizontal seismometer.
> >The big knob is used to adjust the support spring to center the mass in
> >either position, and the feet are designed to support it in either
> >position.  The little window is used to see when the mass is centered.
> >The mass can be clamped for easy transit.  As I recall, it has a
> >calibration coil.
> >
> >It was named after the original "Ranger" moon study program, which
> >carried three of these in an orthogonal configuration (less the aluminum
> >case) to the surface of the moon for seismic studies. Once landed on the
> >moon, little motors centered the units.
> >
> >Assuming it still works, this unit would be an excellent, short-period
> >seismometer for your seismic station.
> >
> >Doug
> >
> >BOB BARNS wrote:
> >>
> >> Hi,
> >>   Ebay # 430096282 (ends 9/12) is a "Kinemetrics Ranger Seismometer".
> >> It looks interesting but I don't know what it is.
> >> Perhaps someone in the group can post some info about it.
> >> Bob Barns
> >>
> >__________________________________________________________
> >
> >Public Seismic Network Mailing List (PSN-L)
> >
> >To leave this list email PSN-L-REQUEST@.............. with
> >the body of the message (first line only): unsubscribe
> >See http://www.seismicnet.com/maillist.html for more information.
> >
> 
> __________________________________________________________
> 
> Public Seismic Network Mailing List (PSN-L)
> 
> To leave this list email PSN-L-REQUEST@.............. with
> the body of the message (first line only): unsubscribe
> See http://www.seismicnet.com/maillist.html for more information.
__________________________________________________________

Public Seismic Network Mailing List (PSN-L)