Introduction: Mini 'Joule Thief'

Picture of Mini 'Joule Thief'

Well, it isn't really 'mini' because the small toroids I wound didn't work :/ I used a 2n3904 Transistor since that was all I had.
I included a Lego guy comparison to size. Hope you like it! <-- More info on the coil for making a joule thief


iamdarkyoshi (author)2012-01-07

i made an itty bitty one :D its really cool, i fit the transistor and stuff IN the torriod, and for anyone who cares, and owns a 3ds, these pictures will show up in 3D on a 3ds's browser!!!!! i just made it, and with not very many windings. AAANNNNDDD... my battery is only at like .9 volts so it works GREAT!!!

Mudbud (author)iamdarkyoshi2012-03-08

haha thats nice, I was going to make a smaller one but I didn't have any wire >.<

iamdarkyoshi (author)Mudbud2012-03-08

lol i was using this as a nightlight and my battery picke a perfect tome to blow up all over it >_<

Mudbud (author)2012-03-08

I found it in my supply of random junk, but you can make your own with a toroid and wrap it with wire. You can get toroids pretty much anywhere online or from power supplies etc.

praja1 (author)2011-08-01

ya its good, i like it.

phckopper (author)2011-03-17

It's so cool. The red point on the LEGO minifig hed is the Harry Potter's ray.

Mudbud (author)phckopper2011-03-18

yeah i know, I use to be a big fan of harry potter!

jensenr30 (author)2011-03-14


zazenergy (author)2011-03-13

I do like it!

About This Instructable



Bio: “Let the future tell the truth, and evaluate each one according to his work and accomplishments. The present is theirs; the future, for which I ... More »
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