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Old 09-02-2007, 02:53 PM   #4 (permalink)
horndude
Master Techie
 
Join Date: Apr 2004
Posts: 2,532
Default Re: What cicuitry do I need to make two clusters of led's flash alternatingly.

multi-vibrator circuit

lots of ways to do this, either using digital or regular transistors

a simple pair of transistors will flip flop back and forth when paired together, you can use a resistor and capacitor to change the timing

Multivibrator - Wikipedia, the free encyclopedia

you can google for electronics kits, thats a pretty common starter kit actually, cheap too
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