Joule Thief

[NickZ]

  Here is another video of my Joule Ringer set up running on 12v. I can only imagine what it could do with the right high powered LED bulb instead of the incandescent.
Those that have old crt monitors or tv can use the ferrite beads that come in them.
6 to 8 of those type beads joined together into a straight rod, along with a 2n3055 or TIP 3055 transistor like is shown in the video, can make a decent working and very cheap to build Joule Ringer circuit.

   http://www.youtube.com/watch?v=chEwqvtJUOA

[SkyWatcher123]

Hi folks, Hi nick, thanks for sharing.
Yesterday, somehow ended up watching many lynxsteam videos about his air core joule ringer and realized he was running certain dimmable bulbs very well.
So, i wonder if a cored joule ringer or air core will run the cree led dimmable bulbs good, i have 4 of those bulbs now, plus the gutted one, hehe.
Have to dig up my 4 ferrite bead joule ringer and try it.
peace love light
tyson

[totoalas]

  Here is another video of my Joule Ringer set up running on 12v. I can only imagine what it could do with the right high powered LED bulb instead of the incandescent.
Those that have old crt monitors or tv can use the ferrite beads that come in them.
6 to 8 of those type beads joined together into a straight rod, along with a 2n3055 or TIP 3055 transistor like is shown in the video, can make a decent working and very cheap to build Joule Ringer circuit.

   http://www.youtube.com/watch?v=chEwqvtJUOA

Nice results
can you try an ordinary  beach sand as core.... tried a ring magnet in the beach to collect some but unfortunately nothing magnetized so I just scoop sand ... dried it up and placed in a plastic sheet inside a ssg coil  ..... my jr is down at the moment as the 2n3055 fried after a loose connection several times during the test.....  but the output 200 ma for 8 pcs led 220 v 5 w is good news for me

[NickZ]

  Sky
  The big air core as shown and offered for sale by Lynxsteam does seam to work very well, but needs to be made about the same size that he is making them, to work comparable to the much small ferrite rods cores.
There are many sources of ferrite available even for free as I have mentioned.
And, if lighting incandescent bulbs is the thing, then ferrite cores are where its at, as they provide quite a bit more punch, current wise. But, for CFL, or LED bulbs, air cores will do fine, they just need to be built up with bigger cores sizes and
with many more turns.

  Totoalas
   Good to hear from you again, it has been a while.  I also just fried my Ringers transistor,  by the time I smelled it and saw the smoke, it was too late. Oh well, another one goes to the trash. At least there is just one component to toss out.
I find that the TIP 3055 seam to hold up better than the 2n3055, of which I have destroyed my share of, but when there is a short circuit, none of them hold up well.

  I would really like to find a proper way to feed back enough juice to make these circuits self run, even perhaps without a battery, or just to jumps start the circuit with it, only. That is what I am working towards. 
  By the time we figure it out, our oriental friends will be selling them cheaper than we can make these devices.
  Check this 12v to 110v 20watt inverter out.  It can be bought for a couple of dollars,  can you beat that...
  http://dealer-lampu.blogspot.com/2013/01/fitting-inverter.html

[SkyWatcher123]

Hi nick, thanks for the reply.
I dug up one of the 4 ferrite bead cores and it has 320 turns of 30awg. for the first layer and it had 65 bifilar turns 24awg. on top.
Removed the 65 bifilar turns and am contemplating if i should keep the 30awg. with all those turns or remove it and replace with layer of 24awg..
Since this will only be powering led bulbs, as using what it had previously, could light a 13 watt gutted cfl to just about full brightness, which i think might be overkill, voltage wise, for an led bulb.
Any suggestions welcome, as i think about this, or just test it and see.
Might try both the joule ringer wiring and the meissner wiring, thats why the bifilar for the option.
peace love light
tyson