PSN-L Email List Message

Subject: Re: Seismograph for school
From: "tchannel" tchannel@..............
Date: Thu, 28 Sep 2006 16:55:54 -0600


Hi John and Others,  We all heard about the 6.7 SAMOA ISLANDS REGION at =
28 Sep 2006 06:22:11.  After checking my station first thing this =
morning, "Like a kid on Christmas morning" I saw a signal, or what I =
hoped was a signal.   I checked the internet and found this 6.7, was in =
the same time area.   I was able to expand my trace and look for the P =
and S......I use local Helicorder and PSN's from the net so I could look =
for similar parts of the event, not really knowing where to start.  My =
station is primitive but I am improving it everyday.  Working on a new =
Amp and Filter.   If someone has some free time to correspond with me on =
this issue, please email me and I can send screenshots of what I did and =
where I think the P and S are.   I am a bit confused because the P look =
like the same time it should have arrived, in Boise,  but what I think =
is the S is too early. Where the S should be, I don't see it.   I don't =
wish to bother the group, but if someone would like to help me, I would =
be grateful.  Anyhow I think I recorded my first Earthquake.
My wife was not nearly as impressed, as I was.
Thanks, Ted
  ----- Original Message -----=20
  From: John or Jan Lahr=20
  To: psn-l@.................
  Sent: Tuesday, September 26, 2006 10:56 PM
  Subject: Re: Seismograph for school


  Ted,

  Larry Cochrane has given me permission to post his seismic =
amplifier/circuit, which is a well designed and proven to work well.
  http://jclahr.com/science/psn/cochrane/
  The easiest route is to purchase one from Larry:  =
http://psn.quake.net/eqamp.html

  A simpler design is posted here:
  http://jclahr.com/science/psn/amp_filt/

  John

  At 06:20 PM 9/26/2006, you wrote:

    Hi Stephen,  Thanks for this recommended site...I could not enlarge =
the PSN Preamp and PSN filter Amp by Pete Rowe, to see the values on the =
drawings.  I searched the net but could not find any other site for =
them.  Do you know where I might be abe to find these, large enough to =







Hi John and Others,  We all heard = about the=20 6.7 SAMOA ISLANDS REGION at 28 Sep 2006 06:22:11.  After checking = my=20 station first thing this morning, "Like a kid on Christmas morning" I = saw a=20 signal, or what I hoped was a signal.   I checked the internet = and=20 found this 6.7, was in the same time area.   I was able to = expand my=20 trace and look for the P and S......I use local Helicorder and PSN's = from the=20 net so I could look for similar parts of the event, not really knowing = where to=20 start.  My station is primitive but I am improving it = everyday. =20 Working on a new Amp and Filter.   If someone has some free = time to=20 correspond with me on this issue, please email me and I can send = screenshots of=20 what I did and where I think the P and S are.   I am a bit = confused=20 because the P look like the same time it should have arrived, in Boise,=20  but what I think is the S is too early. Where the S should = be, I=20 don't see it.   I don't wish to bother the group, but if = someone would=20 like to help me, I would be grateful.  Anyhow I think I recorded my = first=20 Earthquake.
My wife was not nearly as impressed, as = I=20 was.
Thanks, Ted
----- Original Message -----
From:=20 John or = Jan Lahr=20
To: psn-l@..............
Sent: Tuesday, September 26, = 2006 10:56=20 PM
Subject: Re: Seismograph for = school

Ted,

Larry Cochrane has given me permission to = post his=20 seismic amplifier/circuit, which is a well designed and proven to work = well.
http://jclahr.com/science/psn/cochrane/
The = easiest=20 route is to purchase one from Larry:  http://psn.quake.net/eqamp.html

A = simpler design=20 is posted here:
http://jclahr.com/science/psn/amp_filt/

Joh= n

At=20 06:20 PM 9/26/2006, you wrote:
Hi = Stephen, =20 Thanks for this recommended site...I could not enlarge the PSN = Preamp and=20 PSN filter Amp by Pete Rowe, to see the values on the = drawings.  I=20 searched the net but could not find any other site for them.  = Do you=20 know where I might be abe to find these, large enough to = print? =20 Thanks, Ted

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