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    Re: Electrical Wire
    From: Jared Sherman
    Date: 2004 Mar 25, 12:32 -0500

    Geoff, with conventional LED's and conventional battery voltages tehre are
    many options and they are fairly simple. In fact there are a number of
    places on the web that supply "LED replacements" for regular flashlight
    bulbs, in the same form factor and case so they can just be dropped in as
    replacements. Probably not in the tiny size found in sextants, yet.
    Also of note, until quite recently there have been no white LED's, what are
    called "white" are actually blue/UV with a phosphor coating in them very
    much like miniature fluorescent bulbs, which is why they often had a bluish
    cast. These also typically needed 4+ volts to run. As of last month there is
    a new technology producing "real" white LED's that run at under 3v, so real
    white LED lighting for sextants should be possible later this year if they
    ship small ones.
    A "subminiature" red/yellow/green LED from any Radio Shack could be used
    now, two or three dollars worth of parts at the most including the dropping
    resistor. Good eyes and fine fingers may be needed though. If you have a
    burned out Plath bulb, I could probably try converting it to a direct LED
    replacement for you. The burned out bulb makes a very useful contact/mount
    for the LED.

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