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    Re: A-12 Bubble Sextant (Octant)
    From: Geoffrey Kolbe
    Date: 2014 Feb 12, 07:29 +0000

    Consider it an opportunity to update the bubble assembly and bring it
    into the 21st century. Machine a tube of aluminium that fits into the
    cavity, so that it will contain an LED, battery and associated
    electronics, including a replacement variable resistor. You will then
    end up with something better than you had before...
    
    Geoffrey Kolbe
    
    --
    Dr Geoffrey Kolbe, Riccarton Farm, Newcastleton, TD9 0SN
    Tel: 013873 76715 Mob: 07811 154621
    
    

       
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