Joule Thief Dream Coil

[unzapped]

I am trying to get some prototype toroids machine wound.

As most of you here have much more experience with JT's than I, would you please list the exact specs of the toroids if you were to be able to have them machine wound? Like the dream toroid.

This would be the primary JT toroid bifilar. Probably like .75 inch OD

Material
Wire thickness
# of windings.

Please keep in mind we do not need to be practical here. Not many people will wind 1000 turns... but these machines will do it in minutes!

I will be looking for like three to begin with. Then testing. I will mass produce the final ones if anybody wants some... I am very lucky to have a manufacturer right in my home town who is willing to work with me. Please allow me to pass this advantage to the community as well.

I am meeting with them next week.

Thanks in advance.
UZ

[resonanceman]

I am trying to get some prototype toroids machine wound.

As most of you here have much more experience with JT's than I, would you please list the exact specs of the toroids if you were to be able to have them machine wound? Like the dream toroid.

This would be the primary JT toroid bifilar. Probably like .75 inch OD

Material
Wire thickness
# of windings.

Please keep in mind we do not need to be practical here. Not many people will wind 1000 turns... but these machines will do it in minutes!

I will be looking for like three to begin with. Then testing. I will mass produce the final ones if anybody wants some... I am very lucky to have a manufacturer right in my home town who is willing to work with me. Please allow me to pass this advantage to the community as well.

I am meeting with them next week.

Thanks in advance.
UZ

I doubt that  you  will get many responses on this.
For one thing.....there is no ideal toroid.
What works great for one application might not work well at all  for another.
The people that are building would probably rather build than spend time rewriting what they have already  posted .

All the details  you are looking for are already here.
It just takes a little digging

Another point.
Does  your manufacturer have access to the exact same toroids that people are using here?
A JT with the same wire and windings  made  with a different toroid will probably   perform much differently

To make a perfect JT you have to get to know your toroid
You have to know it enough to be able  to predict about what voltage  you will get with a particular number of  windings.

If I was  in your place  I would  get some toroids from your friend......then I would  start building .....
I think I would  start a new thread .......so when I did go to sell them I would not have to ask  people to read 1000 pages to understand what is  going on.
I would  pick  a project  and  see how well I could  get it done  with the  toroids  your friend has  available.
For  example ....... a Jeanna light  might  be a good project.
I think  a Jeanna light  could be made with a smaller  toroiod than the " official Jeanna light.

I would  document  the entire  procerss on  the new thread.......including  how long each new version will  light a CFL  then ..... when I  had  it working  really well........  then I see no reason  that  it could not be sold ...........maybe as a kit on ebay
 
gary

[resonanceman]

I doubt that  you  will get many responses on this.
For one thing.....there is no ideal toroid.
What works great for one application might not work well at all  for another.
The people that are building would probably rather build than spend time rewriting what they have already  posted .

All the details  you are looking for are already here.
It just takes a little digging

Another point.
Does  your manufacturer have access to the exact same toroids that people are using here?
A JT with the same wire and windings  made  with a different toroid will probably   perform much differently

I make a perfect JT you have to get to know your toroid
You have to know it enough to be able  to predict about what voltage  you will get with a particular number of  windings.

If I was  in your place  I would  get some toroids from your friend......then I would  start building .....
I think I would  start a new thread .......so when I did go to sell them I would not have to ask  people to read 1000 pages to understand what is  going on.
I would  pick  a project  and  see how well I could  get it done  with the  toroids  your friend has  available.
For  example ....... a Jeanna light  might  be a good project.
I think  a Jeanna light  could be made with a smaller  toroiod than the " official Jeanna light.

I would  document  the entire  procerss on  the new thread.......including  how long each new version will  light a CFL  then ..... when I  had  it working  really well........  then I see no reason  that  it could not be sold ...........maybe as a kit on ebay
 
gary

Unzapped

I thought about it a few minutes.

Are you able to market your  prewound  toroid?

I Think it  would  be great if you could put together a kit for a Jeanna light or something.
If I was not into making JTs I would think about getting one........provided   I could see that it worked.
So to me ....... documenting  the whole process is key.

I was planning on  building a few  versions of the Jeanna light this week ... so I will be posting my findings.

Anyway

I can not tell you  how to do it .............but if you do it remotely lilke I  have described it I think it would be great .
And it would  be a great way to get the word out  that there is more to energy  than we have been taught.

gary

[gadgetmall]

Hi . I have to agree with gary . I have hand wound 100's of torroids . Most are just different . Right now our jT Group is trying to use the same torroids like goldmine 5 for $1 or the torroids that we know get high volts from Mag-inc for free samples . Almost every torroid even the same can have different results as i have see . i have 60 gold mine torroids and i find the same windings on the same toroids using the same wire and  parts have different results so its just a matter of experimenters touch and go .

Albert

[jeanna]

Hi Gadget,
I would like to say something about the toroids we have been using.
Those ones we get from goldmine have a great deal of variance which may be the very reason they are at the goldmine and not at a bonafide distributor.
They may be from a heap of same size unknown permeability kind of thing.
I have never like them and maybe that is because the 5 I got were all lower permeability than some that you got.

I am hoping that if we can standardize this a little we will get more consistent results.
This is the reason I was talking to MMI
Mouser sells a smaller kind with an actual permeability as part of the description.

Unzapped, can you get 11,000 permeability?

This is the number you need to ask for from your friend.
It will be in a ferrite and not in the epoxied powdered kind.

I just got a small burn from the end of my secondary!!
I might be getting somewhere... not that I like getting burned, but...

thank you,

jeanna