PSN-L Email List Message

Subject: Re: SPRENGNETHER 201 LONG PERIOD VERTICAL SEISMOMETER
From: ChrisAtUpw@.......
Date: Wed, 20 Aug 2008 10:17:01 EDT


In a message dated 2008/08/20, dwebb002@............. writes:

> I have a few pieces of the original and will measure the width and 
> thickness as soon as I find a micrometer.  I can attest that they are 
> rather fragile.  I don't know the composition but they have a brassy 
> appearance.
> Dick

Hi Dick, James , Meredith,

       If you can give me the seismic mass and the maximum width of the clamp 
strip, we can work out the thickness required quite easily. The wire was 
almost certainly a repair.
       It is very unlikely to be brass, but it could well be bronze or 
phosphor bronze strip. You might also consider a SS replacement?

       Regards,

       Chris Chapman   
In a me=
ssage dated 2008/08/20, dwebb002@............. writes:

I have a few pieces of the orig= inal and will measure the width and
thickness as soon as I find a micrometer.  I can attest that they are <= BR> rather fragile.  I don't know the composition but they have a brassy appearance.
Dick


Hi Dick, James , Meredith,

       If you can give me the seismic mass and= the maximum width of the clamp strip, we can work out the thickness require= d quite easily. The wire was almost certainly a repair.
       It is very unlikely to be brass, but it= could well be bronze or phosphor bronze strip. You might also consider a SS= replacement?

       Regards,

       Chris Chapman

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