Data looks great.
Regards, Steve Hammond  PSN San Jose
Aptos, CA

-----Original Message-----
From: psn-l-request@..............
[mailto:psn-l-request@................. Behalf Of 1goss@...........
Sent: Sunday, May 01, 2005 6:18 PM
To: psn-l@..............
Cc: bryangoss@...........
Subject: Improvements and Event !!


Thanks to all for your input.

Here are some pictures of the improvements made and the result.

1. Chris’s improvements to my Lehman Seismometer The L bracket for support.
https://home.comcast.net/~bryangoss/l2.jpg

2.This is also Chris’s suggestion, however only one ball bearing did not
work as well, as I wanted. I got a lot of vertical oscillation. I used 2
ball bearings, and it made a big improvement!!!!!
https://home.comcast.net/~bryangoss/dual.jpg
Thanks Chris..

3.This was something I had seen in pictures on the net probably PSN
seismographs.
It is an aluminum rod, very small  in diameter, used in place of wire
(except for at each end). This also helped stop vertical oscillations.
https://home.comcast.net/~bryangoss/ALrod.jpg

4. This was an improvement as a suggestion from several PSN list members.
You said I needed heat, so I put a heat pad on top of the box. This was a
100% fix. I do not get the drifting noise I had. Thanks..
https://home.comcast.net/~bryangoss/heatpad.jpg

THE RESULT!!!!!!!!!!!!

This was a 4.1 event   Manila, AR   Sunday, May 1, 2005 at 12:37:32 (UTC)
Look at this this, it makes it worth all the work. I just finished up about
3 am the day before.
https://home.comcast.net/~bryangoss/LocalEvent.jpg

file:  https://home.comcast.net/~bryangoss/050501.123700.ch1.psn
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