Joule Thief

[Mk1]

@electricme

I read a lots of thing but the basic is simple , lets say you make one coil around the toroid this coil positive input will become the plus side of the coil the output the negative side (like a electromagnet , the polarity is effected by the direction of the current flow ) that magnetic field alone will produce nothing only when the flow stops and the field is collapsing that the energy is sent to the other coils.In the jt you have 2 opposing field , when one switch it induces the other as the voltage is pushing it.Pickup coil is getting the from both jt coil , since the jt coil are reverse wound(only the connections) you double the magnetic range. Now the fun is to create repulsing or attracting field and testing , create many opposing field , the location of pickup coil are not important in the regular bifilar jt as long as you don't go all the way around because when you do its canceling the voltage because every time you go all the way around it cutting the coil , is like 2 coil in series connected the wrong way will cancel each other.I made that mistake more then once .This is the reason bigger opposing field and good location for wire is the key to the thing.On your big toroid winding you did go over did you? In the tesla patent he had 4 opposing field and pickup coil at the same location.

[xee2]

@electricme

This is a good source of information about toroids also:

http://www.dextermag.com/uploadedFiles/Literature_Fair_Rite_Power_App_Material.pdf

I also suggest that you Google "magnetic induction" to see if you can find some simple explanations. A toroid is just a way of increasing the magnetic coupling between wires by increasing the permeability of the space around them.

[TheNOP]

@electricme
nice toroid


@gadgetmall
i do plan to use the jt for that too.
but i will stick with faraday's law even with it...

good luck.

Too bad that everyone here doesn't have a scope to work with 

yes, and i am the first to regret it.

thanks for the measurements




@IST
any npn transistor show the same alike trace pattern ?
same thing for pnp ?

you too IST, thanks for the measurements

[Mk1]

@all

http://my.voyager.net/~jrrandall/Patents/MEGPatent.htm

[Cap-Z-ro]

i saw105 milivolts off one not long ago when i was checking out the Hutchison's Effect Crystal thing . i had to try . maybe hook a few of those rocks and run a JT ?I think so.just go to make some pointy probes to hold em in position..

Good thought.

Also, I wonder if your crystal may be able to receive what the j/t emits and amplify its output.

Regards...