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2014-12-20 09:51  
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This circuit is similar to Advertising Badge .  It uses a CD4013 dual D Flip/Flop IC.  The 74HCT74 IC in Flashing LED Advertising Badge #1 does not always work.  As in Advertising Badge, a single lithium battery will provide months of continuous LED flashing.  It also has a tiny push-button switch to turn on and off the light flashing.


Circuit Advertising Badge Flasher





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