Nathan Stubblefield Earth battery/Self Generating Induction Coil Replications

[MW383]

Bruce,
I do have a new coil constructed. I have yet to experiment with it yet. Take a look at the picture I posted above. My latest coil is much like this, almost identical in fact. I took the liberty of using better materials however. My copper wire was custom produced for me and has a water permeable nylon weave insulation as opposed to cotton. The nylon will not degrade like coils I built previously that incorporated cotton insulation. For insulation between winding layers I use battery grade Hollingsworth&Vose seperator paper. The 'paper' description is just an industry used term. Its actual material is a water permeable synthetic material that will also not readily degrade like cotton. I was quite generous in the applied thickness of this seperator paper (thickness = 1/3 that of the wire diameter). 14Ga wire was utilized for the main windings. Windings are tight and neat just like the picture. I do not use winding apparatus, they are all done by hand. A very hard task because of the guage involved but I take my time to get it right. The main windings were wound in a fashion that will allow complete experimentation of different formats/strategies.
Many people (probably all), use these Stubblefield systems with a secondary coil being the only tappable source of power. I'm not falling into that trap. A secondary used in this fashion is a nice little gimmick at best. I will still build a secondary, but not in the common format everyone else does. It will be a slide over the primary coil design that is removable. Furthermore it will be built using the 'slice' method. With each slice dimensioned and wound to take best advantage of available magnetic field in any particular spot on the overall coil. Actually 2 secondaries will be built. One that soaks up field with an oscillating primary (what every shmoe does) and a second primary that operates the system totally backwards. For experimentation's sake, an english manufactured resonant circuit will be utilized. It has a very wide frequency range that is adjustable. Tishitang + ground antenna logic will be the basis of all experimentation moving forward. I have already experimented with ground antenna philosophy and it is VERY interesting to say the least. Somewhere in this forum are posts on the subject.
With warm weather setting in and the ground thawing, I look forward to getting to work and in the ground (where the power is).

[IotaYodi]

@MW383
What type of steel did you use on the core? What type of iron wire?

[MW383]

@MW383
What type of steel did you use on the core? What type of iron wire?

Core material = 1018 steel rod stock.
Iron wire = 14ga annealed (I do not know specific metallurgical specs). Using annealed variety is critical because it is soft and able to be wound easily. I do sand the wire before winding onto the coil. I basically take the black colored surface off with the sandpaper, thus leaving shiny bare steel. I am no anneal expert but understand it is a controlled increase in temperature followed by controlled cool down. It softens the metal basically. The black color is unknown to me. I guess it to be oxides but am not sure. I just got rid of it with the sandpaper before winding to the coil.
Nothing fancy with either of these materials. I have half a mind to make a bundled style core using small diameter rod stock but I have not gotten around to it again. So for now I am using crude solid core like Stubblefield did. Nothing in my latest coil is crazy or exotic. I did use improved insulative type materials but they were chosen for their ability to not degrade. I doubt whether they have any impact on performance. My goal with this latest coil was to build a very clean one. So the primary is on and looks quite like the William Love photograph I just posted. I have to collect materials still before I can start on the 2 secondaries I have planned. I also will be trying a mumetal based magnetic sheilding on the outside of the secondary coil. The purpose here is to better confine and utilize induced currents. This is more of an efficiency thing with me and won't be an earth shattering improvement to this system.

[Bruce_TPU]

Bruce,
I do have a new coil constructed. I have yet to experiment with it yet. Take a look at the picture I posted above. My latest coil is much like this, almost identical in fact. I took the liberty of using better materials however. My copper wire was custom produced for me and has a water permeable nylon weave insulation as opposed to cotton. The nylon will not degrade like coils I built previously that incorporated cotton insulation. For insulation between winding layers I use battery grade Hollingsworth&Vose seperator paper. The 'paper' description is just an industry used term. Its actual material is a water permeable synthetic material that will also not readily degrade like cotton. I was quite generous in the applied thickness of this seperator paper (thickness = 1/3 that of the wire diameter). 14Ga wire was utilized for the main windings. Windings are tight and neat just like the picture. I do not use winding apparatus, they are all done by hand. A very hard task because of the guage involved but I take my time to get it right. The main windings were wound in a fashion that will allow complete experimentation of different formats/strategies.
Many people (probably all), use these Stubblefield systems with a secondary coil being the only tappable source of power. I'm not falling into that trap. A secondary used in this fashion is a nice little gimmick at best. I will still build a secondary, but not in the common format everyone else does. It will be a slide over the primary coil design that is removable. Furthermore it will be built using the 'slice' method. With each slice dimensioned and wound to take best advantage of available magnetic field in any particular spot on the overall coil. Actually 2 secondaries will be built. One that soaks up field with an oscillating primary (what every shmoe does) and a second primary that operates the system totally backwards. For experimentation's sake, an english manufactured resonant circuit will be utilized. It has a very wide frequency range that is adjustable. Tishitang + ground antenna logic will be the basis of all experimentation moving forward. I have already experimented with ground antenna philosophy and it is VERY interesting to say the least. Somewhere in this forum are posts on the subject.
With warm weather setting in and the ground thawing, I look forward to getting to work and in the ground (where the power is).

Hi MW383,
I'm sorry, but I don't see the picture.  Please post it so I can have a look see.  I think I may know a way to use positive feedback into the primary.  The current from this will increase the magnetic field by a little, thus increasing the output, etc.  And I have an idea how to get some of this current to feedback.   But it will take a setup like lasersabers, with the magnets acting as a make and break, to make this happen, I think.


Let me know if your interested.


Cheers,


Bruce

[IotaYodi]

I'm sorry, but I don't see the picture.  Please post it so I can have a look see.  I think I may know a way to use positive feedback into the primary         

I think this is the pic he is referring to.




Can you elaborate on the positive feedback. I assume you mean through the single wire secondary.