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microscope lighting circuts

Discussion in 'Electronic Basics' started by science teach, Jul 10, 2004.

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  1. I have three EDUSCIENCE Big Screen microscopes for my science
    classroom. I want to refit the non-working circuts to make them plug
    into regular wall
    outlet. Where can I find the parts and the help to make this happen.
  2. John Fields

    John Fields Guest

  3. JeffM

    JeffM Guest

    I want to refit the non-working circuts
    The unit I had as a kid used 2 AA cells in the base (3 volts).
    The mirror's gimbal was the return path (the frame was "ground")
    and the mirror rotated 180 so that the bulb on the other side pointed up
    and in so doing, the protruding hot terminal on the mirror/bulb holder
    contacted a pad that was a voltage source.

    Details like this would be helpful.
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