Nathan Stubblefield Earth battery/Self Generating Induction Coil Replications

[hoverdj]

Ok, so spun glass insulation, although water permeable, doesn't work well.

My coil specs:
  Length: 6.5"
  Core: 3/8" zinc bolt annealed in my BBQ
  Iron wire gauge: 15
  Copper wire gauge: 16, spun glass inulation

  vdc: .45
  mA: 6.5

[jeanna]

Hi everybody
                       Iotta
Excuse me if I bug you too much with this one but , are you sure this wire is not enameled? and then covered with cotton?
I will appreciated your input, I'm outside of the states and be back in a long while so calling is rather difficult, also the brittish company won't ship out to my location.
I'll appreciate your help

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OOPS! I missed noticing that you were asking Iotayodi about his wire source!
But, I will leave my comment anyway since it might give someone some ideas.
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Yes, it must be able to produce a small galvanic reaction. So, it must NOT be enamel coated.

Before Lasersaber showed us the uk wires company I had a plan for my next coil.
I planned to used the enamelled wire but remove the coating and wrap it in cotton for just the first row, and maybe also the last or outer row. I suspect this will give enough of the necessary galvanic start.
It is a bit tedious but it does work to  wrap the copper with a thin strip of cotton or silk while you wind the bifilar.
But again, I confirm it must be uncoated copper wire.
I never checked the chinese. They may be willing to make this as we need it and send it to you.
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@hoverdj
Wow 15 gauge iron and 16 g copper...Your fingers must be really glad you are finished with that one!!

Ok, so spun glass insulation, although water permeable, doesn't work well.

What do you mean by not working so well?
Does it short?

You will only get about 0.3v from the galvanic reaction between iron and copper. The zinc bolt may be stronger galvanically, but that is not the point.
As long as you get something, you are good to go.

Set up a reed switch as lasersaber has done (or your own version of it) and when that is working then make a secondary and see what you get from that.
Lasersaber made some nice videos which should give you any instruction for that part.

I still need to anneal my iron stake.

BTW, I checked my zing bolts and they all held the magnetism pretty strongly after they were made into NS coils, so maybe the BBQ is not enough to change that metal...maybe the steel in a bolt is not mild enough.

jeanna

[IotaYodi]

@kukulcangod:

Excuse me if I bug you too much

Only my wife bugs me! 
No its not enameled. I was very specific in my email to them. If you order it just be specific.

Big difference in Dielectrics.
Dielectric of Cotton 1.3-1.4
Dielectric of Glass 3.7-10

Does anyone think pure cotton gauze would work? Seems like it would.

Those worried about the PTB and Lasersaber dont. Hes just using the old standard magnetic field to induce current. Nothing new.

The bolt NS used may have been galvanized but Im thinking the iron wire is the main source for the reaction. I guess a high iron core could be dipped and tried out to see if there is a big difference.   

@jeanna: Check your PM.

 

[jeanna]

No its not enameled. I was very specific in my email to them. If you order it just be specific.

Oh good. I didn't realize that.
Thanks for clearing this up.

Does anyone think pure cotton gauze would work? Seems like it would.

I tried it, but quickly gave up. It allowed the copper to touch the iron.

The bolt NS used may have been galvanized but I'm thinking the iron wire is the main source for the reaction. I guess a high iron core could be dipped and tried out to see if there is a big difference.

I do not believe NS ever indicated that there was zinc in his 'common carriage bolt'. I believe it was iron.

And I agree about the core being the most important element that we all missed.
Look at lasersaber!
He didn't even use iron wire for the bifilar!! I sure would smile if I got mine to spin that top.

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BTW folks,
I found a matched pair of round wood pieces at the hardware store today. They are made of hardwood and designed to hold a closet rod. There is even a hole in the middle for the iron rod! $2.77 = cheaper than the hole saw needed to make them myself.


jeanna

[IotaYodi]

I tried it, but quickly gave up. It allowed the copper to touch the iron.

I guess you would have to triple it or even more then. Thanks Jeanna!