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Mini 'Joule Thief'

$Mini \$

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!

http://rustybolt.info/wordpress/?p=499 <-- More info on the coil for making a joule thief

11 comments

Jan 7, 2012. 11:53 AMlden hartog says:

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!!!

Mar 8, 2012. 11:03 AMMudbud (author) says:

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

Mar 8, 2012. 1:45 PMlden hartog says:

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

Dec 19, 2011. 4:25 AMacmefixer says:

You are an inspiration. Tell us where you got the toroid.

Mar 8, 2012. 11:05 AMMudbud (author) says:

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.

Mar 8, 2012. 1:17 PMacmefixer says:

More info on the coil for a Joule Thief
http://rustybolt.info/wordpress/?p=499