Nicholas,

I was able to save the drawing (JPG) and print it with a Photoshop type 
program.  It was better, but not perfect.  I used Photoshop Elements, but 
any such type software should help.  Simply printing the drawing from the 
original webpage does NOT do a good job.  I can see what you mean about 
deciphering the drawing.   Chris may be VERY intelligent, an "artist" he is 
not. (Smile)

You might try my method and get a better print.

Regards,
Jerry Payton

  ----- Original Message ----- 
  From: Nicholas Ward
  To: psn-l@..............
  Sent: Wednesday, July 26, 2006 8:16 AM
  Subject: Re: OT: an alternative use for a geophone


  Hi all,
  I'm just getting back to this now. I'm looking at building something
  based on Chris Chapman's piezo design from
  http://jclahr.com/science/psn/chapman/piezo/index.html
  I'm having trouble with the sketch however. The circuit is no problem
  just the actual construction of the piezo sensor. Would anyone by any
  chance have a clearer or more detailed drawing I could follow. I hope I
  am not causing any offense to the original artist. It is simply my lack
  of knowledge with these things that prevents me from understanding the
  original sketch.
  Thanks again
  Nicholas


  On 13 Jul 2006, at 19:16, John or Jan Lahr wrote:

  > Nicholas,
  >
  > I've posted details of Chris Chapman's piezo design here:
  > http://jclahr.com/science/psn/chapman/piezo/index.html
  >
  > Cheers,
  > John
  >
  > At 09:57 AM 7/13/2006, you wrote:
  >> From: Nicholas Ward 
  >> Subject: Re: OT: an alternative use for a geophone
  >> Date: Thu, 13 Jul 2006 17:57:35 +0100
  >>
  >> this is all very useful info,
  >> thanks again
  >
  >
  > #################################/ John C. Lahr
  > ################################/ Emeritus Seismologist
  > ###############################/ U.S. Geological Survey
  > ==========================/ Central Region Geologic Hazards Team
  > #############################//##############################
  > ############################//###############################
  >                              PO Box 548
  > /################################
  >              Corvallis, Oregon 97339
  > /##################################
  >              Phone: (541) 758-2699 /=============================
  >                Cell: (541) 740-4844
  > /###################################
  >              Fax: (928) 569-0113 /##################################
  >                     jjpub@........
  > /####################################
  >                                  http://jclahr.com/science/
  >
  >
  > __________________________________________________________
  >
  > 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)

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  See http://www.seismicnet.com/maillist.html for more information.







Nicholas,
 
I was able to save the drawing (JPG) and print it with a Photoshop =
type=20
program.  It was better, but not perfect.  I used Photoshop =
Elements,=20
but any such type software should help.  Simply printing the =
drawing from=20
the original webpage does NOT do a good job.  I can see what you =
mean about=20
deciphering the drawing.   Chris may be VERY intelligent, an =
"artist"=20
he is not. (Smile)
 
You might try my method and get a better print.
 
Regards,
Jerry Payton
 

  
----- Original Message ----- 
  From:=20
  Nicholas Ward 
  
To: psn-l@.............. 
  
Sent: Wednesday, July 26, 2006 =
8:16=20
  AM
  
Subject: Re: OT: an alternative =
use for a=20
  geophone
  

Hi all,
I'm just getting back to this now. I'm =
looking at=20
  building something 
based on Chris Chapman's piezo design from =

http://jc=
lahr.com/science/psn/chapman/piezo/index.html
I'm=20
  having trouble with the sketch however. The circuit is no problem =

just the=20
  actual construction of the piezo sensor. Would anyone by any =

chance have a=20
  clearer or more detailed drawing I could follow. I hope I 
am not =
causing=20
  any offense to the original artist. It is simply my lack 
of =
knowledge with=20
  these things that prevents me from understanding the 
original=20
  sketch.
Thanks again
Nicholas


On 13 Jul 2006, at =
19:16, John=20
  or Jan Lahr wrote:

> Nicholas,
>
> I've posted =
details=20
  of Chris Chapman's piezo design here:
> http://jc=
lahr.com/science/psn/chapman/piezo/index.html
>
>=20
  Cheers,
> John
>
> At 09:57 AM 7/13/2006, you=20
  wrote:
>> From: Nicholas Ward <nicholas.ward@.........>>>=20
  Subject: Re: OT: an alternative use for a geophone
>> Date: =
Thu, 13=20
  Jul 2006 17:57:35 +0100
>>
>> this is all very =
useful=20
  info,
>> thanks again
>
>
>=20
  #################################/ John C. Lahr
>=20
  ################################/ Emeritus Seismologist
>=20
  ###############################/ U.S. Geological Survey
>=20
  =
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D/ Central Region Geologic Hazards Team
>=20
  #############################//##############################
>=20
  =
############################//###############################
>&nbs=
p;            =
;            =
    =20
  PO Box 548  
>=20
  =
/################################
>     &n=
bsp;       =20
  Corvallis, Oregon 97339 
>=20
  =
/##################################
>     =
        =20
  Phone: (541) 758-2699=20
  =
/=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D
>        &n=
bsp;      =20
  Cell: (541) 740-4844 
>=20
  =
/###################################
>     =
;        =20
  Fax: (928) 569-0113=20
  =
/##################################
>     =
            &=
nbsp;  =20
  jjpub@........ 
>=20
  =
/####################################
>    &nbs=
p;            =
;            =
    =20
  http://jclahr.com/science/
>=
;
>
>=20
  =
__________________________________________________________
>
>=
;=20
  Public Seismic Network Mailing List (PSN-L)
>
> To leave =
this list=20
  email PSN-L-REQUEST@...............
=20
  with the body of 
> the message (first line only): =
unsubscribe
>=20
  See http://www.seismicnet.co=
m/maillist.html=20
  for more=20
  =
information.
>

_____________________________________________=
_____________

Public=20
  Seismic Network Mailing List (PSN-L)

To leave this list email =
PSN-L-REQUEST@...............
=20
  with 
the body of the message (first line only): unsubscribe
See =
http://www.seismicnet.co=
m/maillist.html=20
  for more information.