I do not see this on ebay, could you send me the item #?

tchannel@............

Thanks, Ted


----- Original Message ----- 
From: "Robert McClure" 
To: 
Sent: Saturday, October 24, 2009 11:26 AM
Subject: Re: instrument design


>  It looks like an inverted pendulum to me, with a spring hinge at the 
> bottom.
>
> On 10/24/09, meredith lamb  wrote:
>> Hi James,
>>
>> Thanks very much for the E-Bay note on the seismometer!  The pictures 
>> were ~
>> vague, but I think I see the flat metal strip on top.  Interesting 
>> hanging
>> mass approach.  I am "speculating" that it has a photo sensor
>> on the bottom for rough centering purposes?  The seller may send a PDF
>> file on such which might
>> also give more overall insight.
>>
>> Makes me wonder whether a round piano wire that replaces the flat metal
>> strip would work out?
>>
>> Meredith
>>
>> On Fri, Oct 23, 2009 at 8:14 PM, James Allen  
>> wrote:
>>
>>>  To Meredith and all, there is a Kinemetrics SH1 currently listed on 
>>> Ebay
>>> with the case removed so that you can see the mechanism.
>>> Jim Allen
>>>
>>>
>>>
>>>
>>
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