Joule Thief

[resonanceman]

@all

My idea on the Nathan Stubblefield , first the battery is made with the copper and iron coils the cotton to isolate the electrolyte from touching the copper directly like any battery , then you sit it in the electrolyte the third coil iron only is pulsed by the battery and since its iron its magnetic action is amplifying the output of the battery , like a core on the jt but on the outside. Ex ignition coil is reverse and self powered.

Mark

MK    An iron secondary?    I don't remember  seeing that before .

It does fit my theorys  ....... I think  that magnentic  fields should  be  captured  better by iron  than by copper  because   the  magnetic fields  are  attracted to the iron .             I am  going to  play with these  ideas  once  I   have   a little more experience  with JTs


gary

[jadaro2600]

@ist, ..do you have time or do you have time? ..lol

@jeanna, I'll try this configuration, but I don't think that it will work.  By adding in a secondary - do you mean remove the led and hook it up across yet another ( tertiary ) coil added into the mix?

[Mk1]

@jadaro2600

Jenna is taking some time to teach you , take the time to listen, its for your benefit .

@Gary

I think that since the first is a regular battery , copper to iron galvanic action , in a coil way to take the magnetic pulse from the other coil . The galvanic show has ac and dc on meters , so Dr we got a pulse send it to the outer coil and third one iron takes electricity but react magneticlly inducing more power in both galvanic coil , it feed it self.

[resonanceman]

Yes

I recommend making one joule thief in the way of the instructions on the evilmadscientist page - the makezine video. It comes up on youtube along with almost any joule thief page.

The reason is you will get more of its implications by making one with your hands than by thinking it through in your mind. It wants to teach itself, sort of...

A while ago someone here had disappointing results using bi metal in a joule thief. But this is what our old friend Nathan Stubblefield was up to. About that I have no doubt. So, I think it should be pursued more.

I sure am glad there are so many different people on this project. There are so many possibilities that need to be tried out. I am glad you are here and caught up too!

jeanna

Jeanna

I am here  but  can't say I am caught  up .

I made one JT  a  couple days ago .....only took  a  few  tries to get it  working .

Sense  then  I have tried  quite a few times .......  nothing .



I agree that I should make  a few  " normal " JTs  .........  I bought   5  black  toroids  ..... I plan  on  expermenting  with   iron wire cores ...... a little ......I have 6  rebar tie  wire  cores ready.
I understand  that iron  cores have not worked  well for others .......but I am  going to  try  a trick or 2



gary

[jadaro2600]

@Jeanna,
Ok, so I redid the circuit in that config and the led goes out, and I strung a third coil into the circuit and used it to light the led, which does work, but tanking the led doesn't work in either case.  Not in my circuit at least - i can put a small cap on the circuit, but doesn't seem to do much.

I may just need to go larger all together.  Thanks for the tip about the tertiary coil.    This is a 4.86k resistor i'm using.  In the latter config, it's drawing 3.75ma.