Thank you so very much both Stan and Dave for your assistance in solving the mystery of the "extra" resistor. So I guess the original owner must have needed to add it to tone down the intensity of the light. Possibly to preserve its longevity given it was a bulb?
Now that the circuitry has been fully determined and analysed, could you give a brief tutorial on exactly what is going on in it? I'd like to learn how this thing works as its now a curiosity on my part.
Given what these control boards do, how different would they be today for new cross bucks? For example there are many items for sale that flash lights but they do not have anything like the size of this control board packed in them.
Thanks!!
