Mag lite Joule Thief Unzapped Cell UPDATE
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6:16
Joule Thief with Secondary Explanation Part 2by jeannacav26,103 views- 1:07
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Joule thief lighting up 20 ultra bright 10mm LEDS with 1,28Volt and about 60mA (22)by insAneTunA4,903 views
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19 LEDS Joule Thief Lamp Modified Jeanna's Lightby jeannacav5,901 views
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Daftman's 1 AA LED Light----My replicationby Lidmotor6,878 views
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Joule Thief - Build, Scope Shots, 10 LEDs 03by dodoshlodo15,260 views
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High Voltage (5v Inverter to 110v AC) 004by kubikop97,751 views
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Radiant Joule Thief Charger 06by dodoshlodo11,826 views
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jeanna's Lidmotor's Jeanna's Lightby jeannacav10,238 views
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Pulsed Inverted Joule Thief Xenomorph modificationsby Lidmotor10,208 views
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Overunity Charger vs Joule Thiefby johnnyaum34,262 views
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Joule Thief (Large Coil) 012by kubikop41,398 views
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Joule Thief Lights 400 Leds On Single AA Battery!by Pirate881793,946 views
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Super Efficient Joule Thiefby stprue2,700 views
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Joule Thief Made With A Ferrite Bead From An Old CFL Light Bulbby trailkeeper4,388 views
what is the function of the magnet?
stephen1475 1 month ago
hi there, I got a trade for ya. Show a video of how you made the tube that goes into your mag lite, and I'm giving you this link to a video that shows how to lower your ma draw and not need a thoroid.
Check out Super Joule Thief - rlc resonant circuit from chilliqueen2007
It may get rid of your humming problem also.
I would like to see your video of the tube because I cannot think of how to make the ends to touch the connectors of the battery.
the1969info 10 months ago
Nice Job!
I agree with what Jeanna has posted. If you tune your toroid to the right freq. for your circuit, you will not need the magnet at all. Also, if your circuit is running well, your run-time should increase as your amp draw should go down. You can run your light for "free" when your friends all give you their "dead" AA batteries that they would have tossed out. i really like your pvc holder idea, very well done.
Bill
Pirate88179 2 years ago
Hi UZ
(I believe) the reason the magnet works as CGnarler said is because the frequency goes up a lot so that dimming thing cannot happen.
One twarning here is that the magnet can exhaust the transistor.
It does not seem to ruin a transistor permanently in my experience,, but it makes it really bad until it can relax some of the magnetization. So, shield it, or tune the toroid to a higher frequency. You might want a smaller toroid for this. a 1/2 inch is really good for what you are doing.
jeannacav 2 years ago