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PC coard exposure

Discussion in 'Electronic Basics' started by Frank Pickens, Jan 27, 2005.

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  1. I have several PC boards that that are coated with a POSITIVE resist. I
    cannot afford an ultraviolet light to expose these boards with. Can I
    expose them with sunlight and if so can anyone suggest an approximate
    exposure time by sunlight
  2. peterken

    peterken Guest

    No need for "special" pre-assembled UV lights,
    just go get one or two fluorescent lamps with an UV component (eg in the
    and yes, direct sunlight IS usable but rather unstable in needed exposure
  3. Ban

    Ban Guest

    I used to do that ages ago, 20min.
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