Rick,
Recently I did this. I cannot tell you that it was a terrific improvement. In my arrangement there are overhead lamps as well as the one below the deck. I am still experimenting but this probably would have worked better if the overhead lamps were dimmed a little more and the copper was not as reflective, maybe cleaning the board before drilling isn't the way to do it.
The led I used was not specified, just claimed to be super bright white, 4.5v. I am running it at about 30ma., as much as I dare.
--- In Homebrew_PCBs@yahoogroups.com, "Rick Sparber" wrote:
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> Has anyone played with putting a high intensity LED pointing up through the
> drill press table so it would be easier to see the circuit board land before
> drilling?
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> Rick
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> [Non-text portions of this message have been removed]
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