Joule Thief

[jeanna]

Jadaro,

I just watched the video you posted.

Thank you. This is very good. I think I will have to try it first. I want to see what a secondary will do on that, for starters. cool.

Also, I am not sure it is important to minimize the losses right away. You are getting something, right? Nathan Stubblefield used copper and iron in his generator which is basically this joule thief. He put up with losses we don't have here. The iron has resistance that copper doesn't have but he was using the galvanic difference to start up his joule thief. All the output from his joule thief came from the secondary.

As we have shown over and over, the jt circuit takes very little to run itself, and, the secondary is where the payload is. Then what do the losses matter?  As long as the circuit is running, there is a way to extract the energy through the secondary. (At least that is how it looks from here.)

I am tired now. I will try this out in the morning.

thank you,

jeanna

[innovation_station]

Yes,

It IS spinning. All the energy is spinning in all those directions. Electricity and magnetism twirling around in a great cosmic dance. Shall we?



jeanna

welcome back   Jeanna

i was trying to upload a video i made for every one to you tube all  night ....   with out luck      so...   yea

i guess we DONT GET TO SEE IT ON A PUBLIC NOTE YET ... this is ok ....  it was demonstrating ...  transformer and non transformer action in the mk3 coil ...

i will keep trying   if i manage to get it online i will post the link

the cosmic dance 

lets try it out

ist!!

[Mk1]

@Jeanna

Vortex power , nature's own .

[Mk1]

@all

Any of you that tried to tune a guitar or base or any type of string , when the 2 string star to sound the same you can hear a oscillation that stops  when they are perfectly tuned , that phenomenon is showing 2 freq close to one another give a third one if the same the oscillation stops, the third has more power the peak are greater , that can be simulated on a toroid with 2 jt circuit on it.

Mark

[jadaro2600]

General theory question for anyone:   ...an affirmation.

What we have when we bifilar wrap and toroid, and then supplement with a pickup coil could also be called a trifilar winding?

If yes,
Say I have a trifilar winding where the bifilar elements of the coil are of equal length and the third wire forming the trifilar element is longer than the bifilar winding; while pulsed currents are made to flow in opposite directions in the bifilar winding, and the third wire is in proximity to the bifilar winding - will this third wire produce AC current?

Given the strangeness of my wording: ...will the third wire, the 'pickup' coil produce AC current?

I'm posting with the expectation that the answers to the above questions are yes.

Generally speaking then; to go without a ferrite core, all someone would have to do is create a trifilar wound transformer, yes?

- - - - -

I recently wound several hundreds of turns of wire around a needle, overlapping the coils - it's an ugly job really, it about four layers of 30 gage wire with the solenoid being about 3/4 on an inch long and 1/8 inch in diameter.  I then wrapped this with two layers of 26 gage wire in the same direction ( both wound clockwise - not opposing ).

I then removed the needle, and inserted the transformer into the joule thief circuit and tested it.  It works with either coil going to the base - current made to flow in opposite directions.  The strange thing about this is...using my most recently posted schematic, removing the LED from the circuit, I get a higher voltage reading when I make current flow through the smaller gage wire on the inside than if I set the smaller gage wire to pass to the collector.

These results make it easy for me to just add another coil - especially if the greater voltage is being collected on the outside, rather than the inside.  I read in a few old book that it doesn't matter that the coil is returning over itself because the over-all flow isn't changing rotational direction.