Nathan Stubblefield Earth battery/Self Generating Induction Coil Replications

[IotaYodi]

Im going to add this.
This is an excerpt from an article about Stubblefield written by one of his grandchildren:

Grandpa was now once again blamed by his wife of 36 years for accidently poisoning three of their nine children through inadvertencies. Neither, at the time of their experimenting with various mixtures of Pitchblende and salt crystals within their 85 farmland soil, knew it was contaminating Teleph-on-delgreen. From 1881 to 1906, the soil-coil RF antenna "hotspots" -- that made it possible for Grandpa Nathan Stubblefield to develop and patent the 1898 induction earth batteries and 1908 Wireless Telephoneâ,,¢ -- did contaminate their foodstuffs and water.

It wasn't until 1906 when their son Tesla died teething on a potato from one of the RF antenna "hotspots," -- that they realized that it could have been the RF antenna "hotspots," mixtures of Pitchblende, salt crystals and other active metals that created the healthy looking but tainted vegetable gardens. The watermelons, tobacco and other vegetation they had commenced growing and selling since their courtship in 1880, when he was 20 and Ada Mae, 16 years of age became an invitation for both invention and the destruction of a family.

They couldn't shake the sense of dread, so Ada Mae on their 36th anniversary, 1917, left Grandpa Nat stranded. He moved his gear to a one room hut and became a stranger than fiction recluse. On summer nights, he would shock his neighbors by lighting up hill sides from his hut, with his buried RF induction transmitting coils.

One wonders what he did to the ground, the batteries as patented could not do this.

Hans von Lieven
http://keelytech.com/stubblefield.html

[Pirate88179]

Iota:

I have read this before and some have used it to say that this was the only way his devices could work....with radiation.  My question still stands that if this was the case, how did he demonstrate his devices on the road including one performed on the Potomac river in DC?

Possibly he was trying to get "more power" by doing this on his farm.  All of us understand this desire.  I would love to take a Geiger counter over to the old farm location (now Murry University) and see what the readings might be.  If there was pitchblende there I would think the radiation would still show up today.

Bill

[fathershand]

I agree with Bill.  Pitchblende is a "red herring" in this topic.  Hans von Lieven does not site the article that he quotes.  Therefore, it is of little scientific value to us.  Also, in the days that Stubblefield was inventing his induction amplyfing coil , a.k..a., earth battery, radioactive materials were not regarded the way they are today.  He surely would have mentioned it somewhere to somebody.  There seems to be no evidence that he told anyone about radioactive materials.

MW383:  How much voltage and amperage are you planning to use on your secondary coil "stimulation"?  Since your secondary will most likely have more turns than you primary, you will be stepping down the voltage and increasing the current on the primary.  Can you please give us some particulars of the device that you have built?  Pics also, please.
Thanks!

[MW383]

fathershand...My coil is nothing fancy. An iron bolt serves as the core. Wrapped around this is battery grade seperator paper (Hollingsworth-Vose, polypropylene based, water permeable, doesn't degrade like cotton). After this it is the standard fare copper - iron windings everyone is familiar with. Both 16GA. Copper is covered with a water permeable nylon weave insulation which also does not degrade. So in these aspects my coil is much like what is described in the patent. I just substituted in a couple of better insulating materials. Between each winding layer is the same battery seperator paper. I went with a thickness that was about 1/2 the diameter of the wires, so fairly generous. The paper is wound on as tightly as possible so it creates a nice smooth and firm surface for the next winding layer to sit on. And of course the windings are also as tight as I can make them. My current test coil only has 5 layers of copper-iron windings. Covering this is another generous thickness of the seperator paper. And then the 'secondary' winding is added. I went with simple 24GA insulated solid copper wire for this coil. This was done in bifilar fashion. So I wind a layer on (two wires side by side). The end of the first wire is routed back to the start of the second wire. This strategy is used throughout the multi-layered 'secondary'. I did this scheme because my testing indicated a stronger magnetic field being produced than a simple winding strategy. Stated again, I will apply power to the 'secondary' and see what I can collect out of the primary (in earth). Initially it will not perform worth a damn. I already know this. I aim to use the 'primary' in a fashion similar to a ground antenna. Let's see if these currents build like both Stubblefield and the modern ground antenna experimenters state. As far as what power I dump into the 'secondary', probably not much. 1.5V I suppose. And at some frequency that is to be determined. The coil will be attached to some modern equipment in the next several days for some general characterization. I want to run in a resonant condition. My guess is to run the 'secondary' coil at the primary coil's resonant frequency. I don't know though, experimentation will be required. So the characterization will at least give me hard data on what frequencies are at stake in all windings. I'll obviously be cheating by using modern electrolytic capacitors. I will also be initially cheating by using an external circuit to perform the switching (at frequency). One step at a time here. Eventually some of this would obviously be simplified. But for now it is the fastest way to more data. That's the plan.

On a side note I will resume my commercial induction cooking experiments in an in ground sort of scenerio. These circuits operate at either 25kHz or 50kHz, pretty high but they might prove useful. The pancake style coil will be sealed in plastic and buried in the ground. For this experiment I will use simple ground stakes placed in the field produced by the coil. Copper stake will be driven into the ground nearest to the coil. A galvanized iron stake will be driven on the outer fringes of the field. This due to the fact that this stake will become inductively heated. So keeping it a ways from the coil should only produce slightly warm temperatures on that stake. A smaller ferrous metal will be placed near the coil as well because the circuit needs to sense a 'pot' is on the stovetop for it to work. So I will fake it out with the smaller metal piece. This piece will get hotter than hell from the induction process but it will be in the ground so I will not worry about it too much. I will monitor volts/amps produced by the 2 stakes to see if anything interesting comes to light. Maybe nothing will...

I know there was plenty of mention on soil additives helping the Stubblefield designs. I am still banking on Tishitang's radio thoughts however. Crazier thoughts involve heterodyning with this system, getting to more powerful lower frequency designs, etc...One step at a time on these things too.

[IotaYodi]

He surely would have mentioned it somewhere to somebody.  There seems to be no evidence that he told anyone about radioactive materials. 

Radioactivity was basically unknown when he first built the coil. The hot spots he looked for just may have been pitchblende. It was his grandson who made the statement. The properties of pitchblende werent totally understood at the time the coil was built but it was well known of its amazing properties. He still could have brought some in from south western Kentucky. A bucketful of radioactive pitchblende would start current in any coil.  But even so there are plenty of other radioactive materiel's. Radon gas is the most interesting to me just because its a gas. The Earths electric field has no choice but to pass through these materiel's. The pitchblende properties were known later to the grandson so you really cant totally discount his statement.