Solid States Devices > Joule Thief
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:
--- Quote from: unzapped on January 08, 2010, 05:00:06 PM ---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
--- End quote ---
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:
--- Quote from: resonanceman on January 10, 2010, 12:30:01 AM ---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
--- End quote ---
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... :D
thank you,
jeanna
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