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Joule Thief with Flip Flop
Published : 2012-06-04 - Duration : 01:50 - View : 2
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Description :
Joule Thief built with BC 549 transistor and toroid.By means of an OA81 germanium diode and capacitor in parrallel with the 3 led's , I can charge a 4700 uF capacitor up to around 5 Volts dc, which is supplying a basic LED flip flop circuit built from discrete components.2 x BC 549, 2 x 100 k, 2 x 680R, 2 x 22uF, 1 x blue, 1 x white LED.The curren...
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