In a message dated 2006/12/01, apsn@........... writes:

> 
> http://micromachine.stanford.edu/smssl/projects/Geophones/DefenseBarzilaiFinalCopyWeb/DefenseBarzilaiFinalCopy.pdf
> Looks interesting.

Hi Bob,

       This has been around for ages. 

       I would give him high marks for effort. 
       I wish that I could be equally enthusiastic about the modifications 
themselves, or about his circuitry.
       The VLF noise level is high, but he does not seem to have addressed 
this, or cured it.

       Regards,

       Chris Chapman
In a me=
ssage dated 2006/12/01, apsn@........... writes:



http://micromachine.stanford.ed=
u/smssl/projects/Geophones/DefenseBarzilaiFinalCopyWeb/DefenseBarzilaiFinalC=
opy.pdf

Looks interesting.




Hi Bob,



       This has been around for ages. 



       I would give him high marks for effort.=
 

       I wish that I could be equally enthusia=
stic about the modifications themselves, or about his circuitry.

       The VLF noise level is high, but he doe=
s not seem to have addressed this, or cured it.



       Regards,



       Chris Chapman