Dave,

Thanks for your kind words. That thing was a real labor of love. I would 
have built it full size, but then I'd have to find a place to keep it! 
as it is, it works very well. The electronics are a very broad band PID 
setup.

Here in North Carolina we almost never have local quakes, so it is all 
teleseismic. I guess that's good!

Dave...

On 5/20/2011 6:13 PM, Dave Nelson wrote:
>
> David,
>          As one who used to operate an original Sprengnether unit 
> prior to
> leaving New Zealand. You have done a beautiful job of a replica !!  
> well done!
> I am seriously envious  ;)   I dont have the workshop or engineering 
> skills
> to pull that off.
>    But I still have to build a LP unit somehow.  After many years of 
> no operations
> since moving to Australia I am finally up and running again.  At the 
> moment just
> using a 8Hz geophone donated by Pete Rowe.  Thanks mate  :)
>
> cheers
> Dave Nelson
> Sydney
> Australia
>
>
>
> At 05:44 AM 17/05/2011, you wrote:
>> Hi Larry,
>> Here is the link to the website where my pictures are posted.
>> http://marvelousmachines.blogspot.com/
>> -- 
>> David H. Youden
>
>
>
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-- 
David H. Youden
4805 Willowtree Lane
Clayton, NC  27520
TEL:	919-553-6734
CELL:	919-763-4719

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