Nathan Stubblefield Earth battery/Self Generating Induction Coil Replications

[MW383]

Regarding the apparent gap between fiberglass insulation and copper.... It really isn't there, insulation is in tight contact with copper. Only when you strip an end, does fiberglass get loose and look like it does in picture. The heat shrink on ends keeps things from fraying and lends to overall neat appearance.

My initial cost for 250ft sample was $25 US. Not exactly cheap but again, this stuff is so much better then the cotton I was dinking with last year that I feel it is well worth it. Larger quantities would obviously drive cost down. I have not had large quantities quoted as of yet. The whole thing happened by accident by the way. I was visiting the rope element manufacturing plant on matters of business, got a tour, and became immediately interested in their fiberglass winding process. As it turns out, the same process worked very well when applied to bare copper wire.

I talked to my contact back in the battery industry yesterday. The separator paper sample is on its way to me. I will provide its exact properties when I recieve the sample and associated spec sheet. But it is fundamentally a material used in alkaline cells. It is obviously water permeable (w/ good wicking ability) but is made of synthetic materials and will perform excellent in this coil without degradation.

I am also hoping to get the iron wire today during lunch. I should be able to start building in about a week. I look forward to it because I know the construction will be better than all of my former efforts and hold up well for all of the testing I will throw at it. The coils I built last year are now rusted, cotton rotted, shorted out heaps. I hope to prevent the rotted/shorted issues with my new materials.

[IotaYodi]

@Electric
Nice idea on the shorting.

Well the fiberglass is definitely cheaper than nylon. Do you know the exact makeup? It will be interesting to see what happens with this.   

[electricme]

@MW383,

Thanks for the info for "any apparent gaps between side of copper wire and insulator".

Now, would you please let me know if the diameter differs between the cotton insulated wire and the Fiberglass woven insulated wire.

My reasons for asking were if the woven fiberglass insulation diameter is smaller than the wound on cotton, then this will relate to being able to add a couple of extra turns of bifiler wires onto the former itself.
This also depends on the length of the Stubblefield Coil former spool, the longer it is the more "extra" turns could be applied.
It would also become more compact, which will up the energy output.

Same thing would happen if we used square Copper and Iron wire profiles, , the square shape adds a little metal to the geometry of the wire, more metal = more energy because the magnetic field would be slightly denser, besides it would also wind on neater.

This is all something to be done later if we can get the items, but it is worth keeping in mind.
Unfortunatly I haven't been keeping a record of my turns or length of a single turn, so I had better start this, it's a bit late, sorry people.

End of the 7th layer, Output Dry= 0.27volts     wet= 0.71volts WL= 90mm

Beginning my 8th layer shortly, I need to recharge the short warning battery first.
During the 8th layer I need to add another length of copper and iron wire, I will just lay one wire beside the other wire and solder them, we will see how this works out, I think it should be OK.
I am using dressmaking and Auto Electrical field coils "cotton tape" to insulate between wire layers, I havent had any problems so far with either of these materials.

jim

[shylo]

Hi Jim ......after 7 layers you say ....dry  .27 volts .....wet  .71 volts...WL=90mm...is WL wire length?...I've been following this thread ,..it seems postes get added in after I've already read  the previous pages.    might be my puter or maybe the site....I wound 18" of normal house wire (the bare ground out of 14-2)....2" covered in cotton ,cotton covered with aluminum foil.....1" left bare.....3" in total length....wound 6 pieces like this 3x6=18....connected 1" bare to next 2" alu.   in series ...read 3.03volts....in a straight line ....wound it around a pen to make it coil shaped ,...took out the pen ....last readings were 3.85volts ....been slowly going up....note I wetted cotton with salt water before I wound them.....can you give dimensions on your coil?...mine don't even have a core .......shylo

[MW383]

Now, would you please let me know if the diameter differs between the cotton insulated wire and the Fiberglass woven insulated wire.

Jim, wire is 16ga which should be .050", i measured and it was more like .048". With the fiberglass insulation, outside diameter is near .060".
I will have to find the leftover cotton wire from last year's experiments and measure. I'm thinking that is is nearly the same as my new fiberglass insulated wire.

I pounded on my spreadsheet for coil calculations and am close to a design that uses all of my 250ft copper-fiberglass wire. I am well aware of various standard induction coil design aspects/ratios. I also did a geometric study of NS patent drawings and if drawing is to be believed, it's various ratios differ significantly from accepted 'copper only' coil dimensions/ratios. I cannot go to the bank with the scaling of 100+ year old patent drawings so I have to think about the iron wire aspects in regards to overall coil geometry. At the moment, I am leaning on a core diameter of 0.437". Core length = about 12". Actual winding length 9.6". Thus winding length / core length = about 0.8, # layers = 6. Copper wire diameter (w/ insulation) = 0.060". Insulation thickness between layers about 0.020". Total primary winding OD about 1.397. Core diameter / primary OD = about .31. NOTE: these are general parameters for copper only induction coil. I need to reflect on potential changes due to presence of iron windings. Maybe I'll have clearer thoughts by tomorrow morning. I know the NS is a different animal but still need to compute the possibilities. The iron adjacent to the copper is a really big deal and not accidentally specified. I need to compute this further. If no revealations, I'll build it with these parameters and hope for the best.

btw... once coil is built, I will force feed it with various electrical inputs. it will be smashed and bashed and observed of course. I'll try every theory presented in the 250+ forum pages here, especially Tishatang's. But many others too. I'm not so concerned with straight up induction aspects but will still try them for documentation's sake. I am not so concerned with electrochemical aspects either but will of course document whateve I observe. No, I'll be beating this thing in very different modes of operation. A bit in the mode of 'reflections', the jibberish appearing on the back of one of NS's papers. The primary is quite rugged in its construction, I say beat the hell out of it with various inputs and see what happens. What do we have to lose?

Best wishes... MW