Ted,

I, too, have been most impressed with the performance of John's 
design when I watch it on Larry's Helicorder page
    http://psn.quake.net/currentseismicity.html

Joe Lincoln's Cole/Lehman operated in Spring Texas always seems to be 
able to see more quakes, which I think is because it can be set up 
for a longer period than has apparently been possible with most other 
Lehman designs, so it is seeing distant surface waves better than most.

The only other small home-built horizontal I am familiar with that 
can see more quakes than John's might be Dave Nelson's(CA) FMES 
electrolytic design.

Regards,
Brett


At 08:04 AM 8/8/2010, you wrote:
>Hi Folks,  I have seen the term "Mini Lehman" and I think I have 
>seen one picture, a long time ago.   I would like to build one, but 
>before I start, I would like to get some details, if you have 
>already gone through the exercise.  I would like to see pictures if 
>you have them.
>
>Thanks, Ted tchannel@............


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