[sci.astro] red flashlights

todd@uop.edu (Dr. Nethack) (02/23/88)

I just remembered an old trick (can't be that old) where you take
a dead lamp from a penlight and mount a red led in the base.

this works well as a red light for astronomy, night op missions etc..

so long as you solder the right ends in the right places.

They don't burn out either, even if dropped.


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