One of the questions that hobbyists ask over and over is how to select the value of a current limiting resistor for an LED. Usually the seat of the pants response is: “Subtract 2 V from the supply ...
While [William] may not know what he’s doing (his words, not ours!), at least he can SEE what he’s doing now with this awesome soldering iron light modification. And judging by the build quality, we’d ...
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