Tesla coil, Standing Wave and Earth Cannection

[dR-Green]

Hi dR-Green,

I am sorry and thanks for that.
I was surprised when I noticed that this Tesla's drawing was not published on the Internet. The drawing was published in a magazine 25 years ago. Subsequently, I found that this drawing already been published on the Internet:
Val - Znanje - Portal za razvoj svijesti | Nikola Tesla o 21. stolje?u - 1937.g. - i nau?ni komentari | Godine, Energije, Beograd, Nikole, Sredstva, Zemlje,

I'm not a lawyer and I find it difficult to judge what is okay and what is not. Of course, there are enormous Tesla's drawings on the Internet, so I suppose that can be freely used.

BSpg

Thanks for the link. Like Ernst I was wondering where one of those diagrams had come from.

I don't know of any forum post or thread that has been shut down on copyright grounds, unless one is focused on deliberately distributing copyrighted material. In this case all we have done is link to files that already exist on the internet, so any copyright issues will have to be taken up with the individuals who host those files. If you are listening to a radio station then it's not your business whether or not the radio station has paid the license fee to play the music.

[SkyWatcher]

Hi all, i normally keep reserved, though today i feel like in a sharing mood.
The whole copyright, patent and anything else that claims so called ownership of ideas, was solely intended from the start, to prevent humanity from freely having all the really good information and the good devices, methods, etc. and the results that would lead to.
Money systems support these ways, by giving incentive not to share freely and compete.
Eventually, by using these types of systems, all the advancements, money and thus power, get funnelled into very few hands and it should be obvious, they don't seem to have the best of intentions towards the rest of humanity.
Though wild parties can only last so long and their party is almost at an end, thank god.
Have a nice day.
peace love light

[dR-Green]

Hi all, i normally keep reserved, though today i feel like in a sharing mood.
The whole copyright, patent and anything else that claims so called ownership of ideas, was solely intended from the start, to prevent humanity from freely having all the really good information and the good devices, methods, etc. and the results that would lead to.

I disagree. The point of copyright and licensing is to ensure that the creator/owner gets paid for his or her work. If you go to work then you expect to get paid, so why should it be any different for an inventor or a musician or an author?

But some people abuse it and apparently it goes beyond practicality. The publisher of the book owns the copyright on the particular publication and they paid to produce and publish it, but the work and the content is Tesla's, and there's nothing that they can do to give Tesla the money, so a copyright on his work is a nonsense because no one is entitled to claim it no matter what law they make up. The copyright on the original publications of the articles have long since expired so if you recompile them then you can publish them as you wish and copyright it yourself.

[Sputins]

Hi,
video is completed:

Basic Tesla's Experiments (Part 7) - Standing Wave, Node, Reflection

https://www.youtube.com/watch?v=nkMndCsNRQU

Thanks,
Spigel

Hi Spigel

I watched your video. - I thought it was nicely produced and what you were doing was very clear and the diagrams are excellent.

Certainly it is clear that by adding a larger and larger capacity to the neutral terminal end, the node shifts further and further down the coil.

In the last test where the neutral is connected to the earth pin of the power socket, the node is shifted almost off the coil, but you can see it still appears at a few centimetres off the bottom of your coil. - I think the goal is to have the node appear right at the very bottom, or even at the point of earth contact. Probably a difficult thing to actually achieve…

I’m not sure if the ground pin on your power socket is an ideal ground anyway. Who knows where it is grounded to and what other appliances or water-pipes etc. are also earthed to the same pin? (There might be displacement currents going through of your toaster in the kitchen)? Plus there would be an amount of added inductance via all these things as previously mentioned.

So you might be better off finding a direct ground with a dedicated ground rod system outside?

The other thing you could try is adding more and more (isolated) capacities (like the 5 + 5 + 5pF), to simulate the natural ground capacity. But increase it until you can move the node right to the bottom of the coil… 712pF?

Have you considered any methods for modulation of the carrier resonant frequency?

[Ernst]

Glad to see you agree

Here are two of the files. These are reproductions made by me.
BSpg has sent me a third one that I can not reproduce with certainty. I may post my best attempt later.


Ernst.

[Ernst]

3rd image

The source of this one was very unclear. This is my best guess.

BTW. has anyone plans to visit the Tesla museum in the near future. They have opened a science centre with a couple of PC's on which you can view all of Tesla's documents for as far as they are digitized (almost (?) everything should be available).
You can also obtain hardcopies for a small (?) fee.
It seems to me that a coordinated action could make most of his work available to all of us.


Ernst.

[BSpg]

Hi Sputins,
Thanks for all. I'm glad that you like this video.

Hi Spigel

Certainly it is clear that by adding a larger and larger capacity to the neutral terminal end, the node shifts further and further down the coil.

In the last test where the neutral is connected to the earth pin of the power socket, the node is shifted almost off the coil, but you can see it still appears at a few centimetres off the bottom of your coil. - I think the goal is to have the node appear right at the very bottom, or even at the point of earth contact. Probably a difficult thing to actually achieve…

I’m not sure if the ground pin on your power socket is an ideal ground anyway. Who knows where it is grounded to and what other appliances or water-pipes etc. are also earthed to the same pin? (There might be displacement currents going through of your toaster in the kitchen)? Plus there would be an amount of added inductance via all these things as previously mentioned.

So you might be better off finding a direct ground with a dedicated ground rod system outside?

I think that you have absolute right. However, I made a similar experiment. I am disconnect my home electrical installation from the ground connection and connected the device directly to the ground connection. I have performed measurements with an oscilloscope, because he is more sensitive than the neon bulb. On the grounding was very small voltage. Grounding is embedded in the foundations of the house (3m long line)

The other thing you could try is adding more and more (isolated) capacities (like the 5 + 5 + 5pF), to simulate the natural ground capacity. But increase it until you can move the node right to the bottom of the coil… 712pF?

Yes, that should be this logic. However, it looks as if the wave reflected from the surface of the earth (when the coil is connected to the earth). I am not still entirely sure how to interpret.

Have you considered any methods for modulation of the carrier resonant frequency?

So far, I have not. I'm working on something more powerful device, which should have also this possibility.

[Sputins]

Hi Sputins,
Thanks for all. I'm glad that you like this video.



I think that you have absolute right. However, I made a similar experiment. I am disconnect my home electrical installation from the ground connection and connected the device directly to the ground connection. I have performed measurements with an oscilloscope, because he is more sensitive than the neon bulb. On the grounding was very small voltage. Grounding is embedded in the foundations of the house (3m long line)


Yes, that should be this logic. However, it looks as if the wave reflected from the surface of the earth (when the coil is connected to the earth). I am not still entirely sure how to interpret.

Okay, not sure if disconnecting the house from its ground is a great idea, but all in the name of experimentation!

I have heard that often house grounds can eventually become not very well grounded as the soil around the foundations can become very dry and not sufficiently grounded, well at least in Australia anyway, (a dry joint in soldering terms). But then again perhaps a capacitive coupling to the (planet)-earth ground could have its own unique properties showing up in experiments?

I’d still suggest constructing some sort of dedicated grounding arrangement for your rig which should give the best results...

There are not many who have shown results with reflected signals from the actual earth (planet) connection. I know it is possible and the minimum power required is said to be around 1hp. But who knows what the absolute minimum power might be for a reflection signal given the location, geology, or grounding system arrangements…

Here might be an area of experiments to entertain, “simulated grounding earth capacities” verses actual planet-earth grounding systems.

-The biggest storm in 56 years is about to hit here right now… Batten down the hatches…

[mikrovolt]

an old drawing depicting standing waves 1911 a guideline for checking good output.
1. the spark gap burst or envelope at L1
2. the standing wave that develops on the antenna
http://www.r-type.org/timeline/ww1911-h.jpg
article reference.
Wireless World Golden Jubilee review of 1911

In another article comparing results of the impulse wave of a spark gap
L1 to L2 either series or simple type gaps at various coupling coefficients.

https://deanostoybox.com/hot-streame...sgap/sgap.html

looking at standing waves how tuning can effect output.

In this video Astronod demonstrates artificial ground in the context of
ham to tesla coil an L-wave antenna with reflective ground transmit between Netherland and France
approx 300 miles on 22 watts. tin foil a possible remedy for stability
Shows that our Tesla table top models can still tune and
do a proof of concept in either mode without the best ground.

https://youtu.be/Pixz6gw3pGg?t=1415