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The Joule Thief. I found this device on accident. I was searching for a WORKING decision maker and found this on accident. It can power many LEDs. The ...
You will Need: 3 ultrabright white LEDS 1 "dead" battery (with 1 volt left.) 1 2N3904 Transistor 1 jumper 1 handmade inductor or two pre-made. 1 Solderless breadboard
Which one should I pick???There are thousands! Well, I think you'll stick to the one in the second picture. The 4th photo and beyond is courtesy of Evil ...
Once again, I thank Evil Mad Scientist Labs. Anyways, I omitted the 1k resistor. I don't know what it does but for now, i just know that I ...
Once you have built it, sit back, relax and enjoy the show that these LEDs put on. One "dead" battery will give you about 65-70 hours of constant ...
The problem with this circuit is that troubleshooting is virtually impossible unless you have a scope... When I used a multimeter, it showed 1.2 volts going into the ...
The simple Joule Thief.by xBacon
Flashlight with Joule Thiefby Roadfighter
Joule Thief LED Night Lightby ledartist
Yet Another Joule Thief Tutorialby bneo99
Joule Thief Chargerby botronics
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