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  1. #1
    us
    Nov 2011
    2
    All Types Of Treasure Hunting

    VINTAGE LEEDS NORTHRUP ELECTRONIC DEVICE

    I have a oak wooden box containing an electronic testing device. The box has dimensions of 12 1/4 x 8 1/2 x 7 3/4. Inside the box is the electronic device with a tag. The tag reads: LEEDS & NORTHRUP CO. , PHILIDELPHIA, PENNSYLVANIA , MADE IN U.S.A. , SERIAL # 333561, CATALOG # 7655. It looks to be a electronic measuring device of some type.
    Attached Thumbnails Attached Thumbnails VINTAGE LEEDS NORTHRUP ELECTRONIC DEVICE-img_9556.jpg  

  2. #2
    us
    Jul 2009
    302

    Re: VINTAGE LEEDS NORTHRUP ELECTRONIC DEVICE

    What kind of connections (electrical) are on the box?

  3. #3
    us
    Oct 2006
    Herndon Virginia
    Minelab EX II & Musketeer, White's Classic
    2,533
    17 times

    Re: VINTAGE LEEDS NORTHRUP ELECTRONIC DEVICE

    It is a portable thermocouple potentiometer (circa 1930's). Someone smarter than me will have to tell you what it was used for.

    DCMatt
    Nothing astonishes men so much as common sense and plain dealing.

    Ralph Waldo Emerson

  4. #4
    us
    Nov 2011
    2
    All Types Of Treasure Hunting

    Re: VINTAGE LEEDS NORTHRUP ELECTRONIC DEVICE

    In the upper left corner of the face panel are two screw buttons, where you insert wires and tighten. The top button is marked (+) for positive and the lower button is marked (-) for negative. On the back of the panel is a compartment that you open and insert a good sized battery for the power to the unit.

 

 

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