@ Jesus, IotaYodi, Shylo & Pirate88179.

Thank you all for the acolades, but I'm only 1/3 of the way through the winds.
Got a long way to go, but the coil has been putting out a small amount of DC.
I wet down the coil about 24 hours ago and it is still putting out energy, although as the coil dries out the output drops.

It's been very overcast today, even had some showers, I have noticed the coil has been working longer than normal so humidity plays an important part in alowing it to operate longer.

Stubblefield buried his coils, the ground at his place must have had a certain level of moisture to keep things going for his coils. I find the dry air around here seems to suck the moisture right out of the coil so it's output drops as this happens.


@ Jesus,
Thankyou for you positive remarks, thankyou.


@IotaYodi,
Q1 Looking down onto the top of the coil where the start wires come out of the wooden ends, (left side of image) it is wound clockwize
Q2 Start and End wires, The start and end wires will eventually end up on the same side, as Nathan Stubblefield shows on his patent, my photo shows it different as I have not finished the coil, I wanted to show people what stage I was up to with the winds, and what the inturnal layers actually look like during the winding process.
I have a heep more layers and turns to go yet. When it is completed I will lay it in different configurations and should be able to answer you questions then.

I have had to slow down the motor drive as the diameter of the coil grows, so does the circumference speed.

@ shylo
Thankyou  also,
You have been very industrous with all your coils, and placing them in Series Parallel will give you workable combinations, I did a similar process with my copper pipe and zinc nail setup I had here last year. It worked for almost a year, then stopped working, it is still outside in the earth, the weeds are covering it, I betta clear them and see how the electrodes are fareing.

@Pirate88179,

Ha ha, I like the place where the worms all popped up out of the ground.
I will try and get a copy of my software to you shortly, but need to send it either by CD or by ISO file, either way you will get one.

The distance you mentioned with your worms, seems to reflect what I am seeing when I pass a compass around this coils magnetic field.

The compass gives me a rough outline where the magnetic field is and it goes out a fair ways from the side of the coil, I took a compass and have mapped the magnetic field, this is a strange beast indeed.

see the JPG

@all.
This coil of mine is displaying both ends of the iron bolt as the north poles, thats right, it's not a typo error.
If you can imagine the coil laying in front of you with the domed head of the central bolt to the left and the threaded end to the right of you.

The winds are between the wooden ends.
The magnetic (N) north pole is at the domed head, I moved the compass around the outside edge of the wooden end, got to the top edge then the compas flips to the (S) south pole, I move the compas to the right parallel along the top row of winds, then abruptly about center, the magnetic field changes back to North (N), I keep moving the compas to the right of the coil and the reach the wooden end, the compas still points to (N) North, I bring the compas around to the side of of the wooden disk to the threaded bolt end and it still points to North (N)

This coil is defying all sensible known magnetic field stuff, well there may be an explination for this, but I carn't come up with one..

The usual outlay is if you have an iron bolt you usually have a (N) and a (S) pole

This Stubblefield coil is displaying a (N) pole at either end of the steel bolt.
The South POLE is to the left side of half of the coil winds, the other half of the coil winds are displaying a (N) North magnetic field, the center of the bolt to the right side is also still a (N) North pole.
I havent a clue to what's hapenning here at all.
   
jim

At this stage I cannot see any fluxation of the magnetic field, it is static, I think I need to put more winds on this beast

@electricme

There is a device that is used to water the plants for weeks automatically when the person is not around to water them. Maybe one of those watering systems can be used to keep the battery's moisture levels.

Another thing is that there was a coil winding posted on this forum a few years back that was doing the same as your coil is doing. It has three poles at the same time.

The thing is that the winding for the three poles was done on purpose to get the three poles.

Jesus

@ Jim:

I always thought we were looking for dipoles and now, you come up with a tripole.  This is why I love this forum and the folks on it.  Every day reveals a new discovery that might lead who knows where?

God bless all of the experimenters.

Jim, just how many layers are you going to wind down there?  To my knowledge, your coil will be the closest to one of NS's coils due to the number of layers on it.  Bury that baby and let's see what happens.

Bill

Not surprising the field is split this way. A mirror of the iron core.
The 2 end like poles are interesting. This may come in handy for a different type of build, but heres what may be happening. If your not done winding and are using unbroken winds,then you have 3 coils in proximity. 2 of those are single winds and differ in metals. This may be verified by others with completed Ns coils as to the poles.
You may or may not have stumbled on a way for different types of coil setups with the 3 unlike coils. Those in electronics may figure this out. If the 2 like poles are permanent various experiments could be done.

@ Jesus and Pirate88179

Thank you for your comments, I still haven't added any more layers of winds yet, I have need of cotton tape, and I found some more, on an old electric blanket, the cotton tapes are used to stretch it and tie it down. I will need to hand wash them first then on the line they go to dry out so it may be another day before I continue the build process.

The Joule Thief forum will be pleased to know I have successfully used a half wound Stubblefield Coil to light a Joule Thief with it, the LED was nice and bright, so I left it running and went to bed, Ha Ha, this morning it was out, the coil had dried out, no worries, this was a good test for it.

To those who want to know the dimensions,  here they are, but remember, I still haven't completed the coil, it still has a lot more winds it to be added to it.

Bolt length is 10 inches long, mild steel, doomed head
Bolt width is 3/8"
Wood Ends are plywood (7ply) Dia = 4"  1/8"
Inside distance between ends 7" 3/4"

So far this coil has 196 feet of Copper and Steel wire on it, (almost 400 feet combined) and the same length of cotton string.
I am using 19mm wide cotton electrical tape to insulate between layers of winds.

The magnetic field reaches outwards around 2 inches when the coil is dry.
When wet, the magnetic field reaches out almost 15 -18 inches, so my compass needle tells me, that is quite a magnetic field.

I have noticed something else, if I put a Heep of extremely strong magnets anywhere near the coil, nothing happens to the coils magnetic field, or it's output why I asked myself? Are we looking at a different field here? is it a gravity type field, does the Stubblefield coil interact with gravity to get it's energy from it?
I may be wrong also, time will tell.

jim