PSN-L Email List Message

Subject: Ebay item 330262519817 old vertical seismometer
From: "meredith lamb" paleoartifact@.........
Date: Wed, 20 Aug 2008 10:24:49 -0600


Hi all,

I usually don't mention E-Bay stuff.  This is ~"vaguely" similar in setup to
a vertical Sprengnether.
The seller doesn't mention much of anything; it could very likely lack
dampening means.  The four
spoke centered top wheel "looks" like spring tension and coil/mass height
adjustment.  Likely a very,
very short period; also not specified.  Alot of viewers so far, >200.
Thirty dollar shipping; its probably
~ heavy.  It looks quite mechanically sturdy.  It looks like it also has two
flat spring hinges/pivots.  Old
but interesting to review.  For all the updating that might be need to be
done and cost involved; one
might be better off building their own version and having all the fun,
frustration, and finally the
satisfaction of getting their own vertical version running.

Take care, Meredith
Hi all,

I usually don't mention E-Bay stuff.  This is ~"vaguely" similar in setup to a vertical Sprengnether.
The seller doesn't mention much of anything; it could very likely lack dampening means.  The four
spoke centered top wheel "looks" like spring tension and coil/mass height adjustment.  Likely a very,
very short period; also not specified.  Alot of viewers so far, >200.  Thirty dollar shipping; its probably
~ heavy.  It looks quite mechanically sturdy.  It looks like it also has two flat spring hinges/pivots.  Old
but interesting to review.  For all the updating that might be need to be done and cost involved; one
might be better off building their own version and having all the fun, frustration, and finally the
satisfaction of getting their own vertical version running.

Take care, Meredith



[ Top ] [ Back ] [ Home Page ]