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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
    Thanks
    fp
     
  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
    TLD18-series)
    and yes, direct sunlight IS usable but rather unstable in needed exposure
    time
     
  3. Ban

    Ban Guest

    I used to do that ages ago, 20min.
     
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