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    Re: Identifying an electric ship's log device - correction to previous post
    From: Michael Bradley
    Date: 2017 Aug 14, 16:25 -0700

    Hello again Carl

    My mind was wandering, late at night, my apologies: no electric motor is apparent on your instrument, but there is the  eddy current brake acting as a light load or oscillation damper.

    So it measures a wide range of voltage - an early muliti range volt meter is a possibility, but my original guess of the display for an electrical  shaft speed measuring system still stands.

    The complicated multi sectioned shaft running through the centre of your machine looks very much like a high quality switch - possibly for range changing by selecting different multiplier resistances.

    And in a wooden panel - nice.

    Michael Bradley

     

       
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