Joule Thief

[WilbyInebriated]

  Great questions Unzapped.  People are amazed that you can take a dc current and turn it into highfrequency highvoltage using a highfrequency highvoltage transformation..  You can forget all the winding and the rest of the stuff going on here and just powerup a flyback transformer or ignition coil to get the same effects.  The probelm most people are having here is realizing that they are not imposing the highfrequency highvoltage spikes on a suitable observer.  Someone put it into a xeon tube and reinvented the strobe light circuit.  The jule thief basically prooves that Faraday was correct when he discovered that emf is expotentially generated as a function of the rate of change in the field of interest.  The higher the amplitude of the kick and the shorter the duty cycle the more profound the changes in the amount of energy occupied by a spacetime spot.  Problem being is that as you approach nanosecond discharges of high potentials you are going to get a knock on the door from people who will take your little hobby project away because this type of action is easily detected and the highfrequency bands above xray are contiously monitored.

there would be an argument about jurisdiction probably escalating to armed conflict before any of my 'hobby projects' get taken away...

[sparks]

  @willby


    Nother battery easy to make is saltwater with any two dissimilar metals in it.  A zinc washer from the hardware store or junk yard and an aluminum can will suffice.

   Also of interest is that a resonant circuit will pump a capacitor plate bone dry and fill up the other capacitor plate chalk a block.  Whereas a simple capacitor discharge into a short only allows the individual plates of the capacitor to reach equal potentials before the current stops flowing.

    I like Willby's attitude.  What regularatory agency controls the uppper upper upper bands.  You surely will not be interrupting radio communications because I dont see alot of hfrequency communications going on.  And you can go lower also because again I dont see alot of elf communications going on.  They would probably come in and say you are a public health danger to yourself and others.  This would land you in a nuthouse where your sanity would have to be proven to a judge of some sort.  You are clearly a danger to yourself if you gain energy from the conversion of mass and create radiation levels well below the smoke detectors proliferated throughout our homes and inacted into law to have them around.

[jeanna]

@ all regarding toroids...

Has anyone tried tape wound toriods or nickel powder? Basically metal banding then encased in plastic...

And just to clarify... The higher permeability the better for the ferrite?

And here is another question I had i could not answer...

He said with the joule thief... you are just stepping up the voltage... what makes the JT different that a regular voltage amplifier?

Who can answer this for me?

Thanks
Jason

Hi Jason,
I already confirmed that higher permeability makes the better toroid for our purposes,
ferrite is the only material according to the ferrite people that can give us this hi permeability. 11,000u or higher.= very very looow flux.
OK someone else chime in, please Jason wants to hear from another party.

What makes this a unique animal is the center tap.
It is worthless as a simple transformer, but when you make the center tapped primary the switching happens on the toroid in such a way that a secondary can do what you have witnessed... and beyond.

Again, someone else please add your comments.
EDIT, thanks sparks for the excellent reply that Jason can cut and paste and print...just leave out the cops and robbers part. It is for a flashlight.

thank you,

jeanna

[unzapped]

@jeanna I should have phrased my toroid question differently... Is too much permability possible?

I guess the other question was also phrased incorrectly... is it possible to get the same performance  by traditional means or is this unique to the JT's operation. Is there another way to fire cfl on a AA battery for the same period of time?

Thanks

[jeanna]

That is a good question, but the 3.3 inch W has 11,000 u and I got 2 more samples which are 2.5 inches with the same meat in the toroid and the
J has about 11,000 u and the
W has about 14,000 u

the J showed promise, but, even though it had 11,000 u,  it did not seem to do the same work.
It is always possible that the transistor had turned bad,  I cannot remember when they went bad in relation to these tests, but...

The one that is in the latest video called hairpin is the 2.5 with 14,000u, and it has only around 100 turns instead of 330 turns and you can see...
It will make 1067 v with these, but it will surely need more turns to make 2000v which is what I ended up getting from the 3.3 inch. But, I got the 2,000 v from the 3.3 inch only by tuning it again later.

The upshot here is
"I dunno, maybe, maybe not."
xee2, said to us " get the highest permeability you can get" So far, I have no disagreement with this.

The thing is you can waste it.
And we do, and don't even know it.
I have been developing some realizations about this, but to discuss this requires that you read and understand the AC from joule thief thread, because in that thread I was doing experiments which showed me that there is a lot of use that we do not even know about.
We have no clue how to plug into it, let alone how to use it.

These are a lot of words to say... I don't know.



So, I take it you already had your interview?
Oh sure, you are 3 hours ahead of me.
What happened?

jeanna
edit:

Is there another way to fire cfl on a AA battery for the same period of time?

I think once we understand the principles we are working the answer will be yes.

For now, we are reinventing what tesla and others from 100 years ago already knew.
We have both advantage to already have toaster ovens and DVD players, but the disadvantage that we do not know the first thing about the electricity and magnetism that makes them tick.
Those guys knew a priori what we still do not know.
I am having the best time of my life doing these projects. I would not trade having them handed to me for anything... for now, anyway.

j