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post #11 of (permalink) Old 06-09-2011, 08:17 AM
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Join Date: May 2011
Location: Where Trumpet Snails Came From
Posts: 755
You can also make such driver from 555 timer. no programming needed. though im not sure how many transistors it can drive. but base current normally is tiny, so it is possible to drive a lot of transistors to power up LEDs.
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