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Magnet selection help needed.

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  • Magnet selection help needed.

    I want a good magnet to use for testing that various parts used for


    magnetometer construction have no traces of ferro magnetic


    contamination.


    I have an ad for one from American Science and Surplus which reads


    as follows:


    ... 2 1/2" diameter x 7/8" thick magnet with a 3 1/4" high "T"


    handle. It has a whopping 50 gauss @ 3/4" and picked up 20 pounds


    of solid bar stock in the R&D lab. The appearance is a little rough


    - chromed and black steel but scuffed, but functionally it can't be


    beat. US$6.50 + shipping and handling of US$5.50. (Total US$12.00


    postpaid)


    I want something good and this sounds as strong as any I REMEMBER


    seeing but I really do NOT know what "50 Gauss" is and how it


    compares with other things available. Any help appreciated.


    Best regards to all,


    Dale


    [email protected]


    103 North Sixth Avenue


    Virginia, MN 55792 USA
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