Greetings,

If you are wondering if J. Lehman has anything to do with the Lehman =
sensor he, Jim or James Lehman, is the designer of the Lehman sensor =
that was described in the 1979 The Amateur Scientist section of the =
Scientific American magazine. If you have not read the article I have it =
online here: http://www.seismicnet.com/lehmntxt.html

-Larry Cochrane
Redwood City, PSN
  ----- Original Message -----=20
  From: Connie and Jim Lehman=20
  To: psn-l@.................
  Sent: Friday, August 02, 2002 7:05 AM
  Subject: Economical High Quality Magnets


  It was brought to my attention recently a good source of magnets for =
coil pickup or damping purposes are to be found in discarded microwave =
units.  It takes a bit of digging, but within the klystron or similar =
box within, in most models there is a pair of strong cylindrical magnets =
for the taking.
                                                   Good digging,  J. =







Greetings,
 
If you are wondering if J. Lehman has =
anything to=20
do with the Lehman sensor he, Jim or James Lehman, is the designer of =
the Lehman=20
sensor that was described in the 1979 The Amateur Scientist section =
of=20
the Scientific American magazine. If you have not read the article =
I have=20
it online here: http://www.seismicnet.co=
m/lehmntxt.html
 
-Larry Cochrane
Redwood City, PSN

  
----- Original Message ----- 
  From:=20
  Connie and=20
  Jim Lehman 
  
To: psn-l@.............. 
  
Sent: Friday, August 02, 2002 =
7:05=20
  AM
  
Subject: Economical High =
Quality=20
  Magnets
  


  
It was brought to my =
attention=20
  recently a good source of magnets for coil pickup or damping purposes =
are to=20
  be found in discarded microwave units.  It takes a bit of =
digging, but=20
  within the klystron or similar box within, in most models there is a =
pair of=20
  strong cylindrical magnets for the taking.
  
          &nbs=
p;            =
;            =
            &=
nbsp;=20
  Good digging,  J. Lehman,  Harrisonburg,=20
VA.