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    Re: Fairchild A-10
    From: David Pike
    Date: 2017 Jul 2, 13:43 -0700
    The guts are the same the A model just has a clockwork activated solenoid that pushes the pencil averager every second. gl

    So that’s how it works; power required; I just thought mine was jammed.  So faced with 60 or so pencil marks over a large or small sector of a circle, what did they do next?  DaveP

       
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