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Originally posted by Rajah235 Ken, fwiw. If you want a simple flasher/pulser unit, then use an LM3909, 8 pin LED driver/flasher chip. ~$3.00.
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If you can find any of the Lm3909, let me know. National have stopped making them and I have been unable to get any. A big plus with the 3909 is that configured as a simple flasher cct you can expect a LED to run continuously for around 12 months on a single 1.5 volt D cell.
