Eric Dollard

[orgonaut314]

Thanks Sputins.

If I remember well you also made flat coils. Did you use the same 62% wire spacing there in the secondary? I am thinking of making a flat coil that will not be useful with an extra coil but might make a better simple telluric system?

Also I have a question about tuning the extra coil. In the original drawing Eric showed the extra coil with its elevated capacity coupled to a plate that was connected to earth. Now I wonder if the tuning was done without the extra plate. Perhaps the extra plate was tuned to resonate with the extra coil? I see no descriptions of that final tuning stage. Was the capacitor large enough etc. I wonder what drGreen did there. Perhaps we could just leave the extra plate and operate the extra coil just as an extension of the secondary coil?

[Sputins]

Thanks Sputins.

If I remember well you also made flat coils. Did you use the same 62% wire spacing there in the secondary? I am thinking of making a flat coil that will not be useful with an extra coil but might make a better simple telluric system?

Also I have a question about tuning the extra coil. In the original drawing Eric showed the extra coil with its elevated capacity coupled to a plate that was connected to earth. Now I wonder if the tuning was done without the extra plate. Perhaps the extra plate was tuned to resonate with the extra coil? I see no descriptions of that final tuning stage. Was the capacitor large enough etc. I wonder what drGreen did there. Perhaps we could just leave the extra plate and operate the extra coil just as an extension of the secondary coil?

My flat spiral coils did not have 62% wire spacing. The centre of each turn was spaced quarter inch apart, the thickness of the co-axial cable makes the space between a little closer. (~4mm). I built those before the 62% spacing information was given. I believe dR-Geen said the 20% height to width ratio format produced better output than the spiral coil format. A flat spiral secondary can still use an extra coil, but not essential, even likewise for a 20% H/W coil. (I have my 20% H/W coils made, but not quite finished for testing yet).

The secondary coils can be used on their own for Telluric work. (Receiving or Transmitting). It certainly is much simpler to get a feel for what’s happening. Then the only variables to play with are the tuning frequency and primary tank, the coupling distance between the primary and secondary, together with the top terminal capacity, size and elevation.

If you’re driving the coils with a transmitter then the impedance match between the transmitter output and the primary tank becomes an important factor too.

I think you will find the plate connected to ground, coupled with the extra coil is brought closer or nearer to the elevated capacity in order to help tune the overall system. This is because as this grounded plate is brought closer or nearer it alters the capacitance of the elevated capacity, thus changing the tuning of the whole system. A similar concept is when a highly tuned coil will de-tune when you bring you hand near it. A coil can also be off tuned so that it becomes tuned when you hand is brought near. This is the main purpose of the grounded plate next to the elevated capacity. (Although in one of Eric’s receiving circuits it’s also used to help pick up the signal from the coils). You could achieve a similar result by adjusting the height of the elevated capacity, its size, shape, or material etc.

So you juggle all of the above variables in order to maximise the Telluric output or input. So there’s enough variables to adjust and play with, without adding in the complication of an extra coil. Add in an Extra coil once you’ve mastered and maximised the result from Secondary coil on its own, would be my suggestion.

[orgonaut314]

Yes thanks I now get the elevated capacity. The tuning of the extra coil is something I am hesitating on. I now have a system without extra coil with tube driver and that I understand.

One thing on the impedance matching between tubes driver and the system with an extra coil. Perhaps the extra coil raises the impedance? I edited my calculations that where wrong. I have no idea how to calculate the impedance seen by the driver but I can measure it. It was low like 500 Ohm.

That is another reason to try the extra coil this time.



Picture comes from coil compendium thread.

[Sputins]

Z match

Yes thanks I now get the elevated capacity. The tuning of the extra coil is something I am hesitating on. I now have a system without extra coil with tube driver and that I understand.

One thing on the impedance matching between tubes driver and the system with an extra coil. Perhaps the extra coil raises the impedance? I edited my calculations that where wrong. I have no idea how to calculate the impedance seen by the driver but I can measure it. It was low like 500 Ohm.

That is another reason to try the extra coil this time.



Picture comes from coil compendium thread.

Okay the Z match of everything is important. But before you load your primary tank circuit with the secondary coil, extra coil, lightbulbs or anything, you’ll need to ensure you are transferring as much energy as possible to the primary tank circuit. Impedance matching here is the key.

So remove all of the coils and drive the primary tank circuit on its own. (Or you could say you have a extremely light coupling). Of course there will be an impedance mismatch between your transmitter and the tank circuit. Thus you’ll require an impedance matching network, preferably one that’s variable. There are a few ways to achieve this. I found with my transmitter, since it is “single ended”, I found a Pi Network worked best for my situation. (Pi Network not much use for push pull drivers though). So once you can achieve efficient transfer to your primary tank then you can reintroduce the coils. Of course then the impedance will change, but not so much that you can’t adjust for it with the Pi Network. Small adjustments are needed as you vary frequency, add loads etc.

My Pi network was built from two air variable capacitors (750 - 1000pF each I think) and a coil about 32uH.


So research Pi networks (ham radio), impedance matching, for some background. (Baluns, & magnetic loop antennas hold some useful info to).

Remember what Eric wrote:

The Primary Circuit, First

We begin with the "Primary Circuit." It is a parallel resonant circuit. This exists in the dimension of time, it is space scalar. Hence no T.E.M., etc. Time only in Neper-Radians per second. PER SECOND. It should be noted that no generalized analysis of this circuit even exists today, so where do YOU want to begin. I will tell you how, get a 1960's Radio Amateur's Handbook, and read it. Then make a 100 watt 80 meter transmitter. Then you can begin to understand Tesla. Throw all the Bearden, Corum, etc. , into the garbage, let the rats and crows have it.

The circuit I have shown is from the Colorado Springs Notes, read this for circuit values, these can be scaled. The reasoning here is that no resistance is wanted in the main tank circuit (L1,C1), it must be tight against leaks to assure maximum magnification factor. The Auxilary Circuit (L2,C2) is an impedance matching network to carry energy from the supply E.M.F. to the tank circuit M.M.F. The energy in L2 C2 refracts into L1 C1 so as not to disturb the primary M.M.F. This M.M.F. the maximized to the highest possible magnitude.

[orgonaut314]

Nicely done and good description for everyone to try. However the resonance of the primary tank depends on the frequency so I first find the resonance of my primary with secondary and than try to develop my impedance network having a maximum at the same frequency. I use a L matching network.

However my latest try had a resonance of the coil at 3,2MHz but with the L-network the resonance was at 2,8MHz so I think I still not have the right coil value because I adjust the cap. I have a variabel coil that I can connect to further optimise the radiation.

My work is not as nice as yours but I am learning

[Sputins]

Nicely done and good description for everyone to try. However the resonance of the primary tank depends on the frequency so I first find the resonance of my primary with secondary and than try to develop my impedance network having a maximum at the same frequency. I use a L matching network.

However my latest try had a resonance of the coil at 3,2MHz but with the L-network the resonance was at 2,8MHz so I think I still not have the right coil value because I adjust the cap. I have a variabel coil that I can connect to further optimise the radiation.

My work is not as nice as yours but I am learning

Excellent work there! Okay you have the L-network for impedance matching great. (Gee it’s looks like a big variable capacitor too). The actual tuning Ro frequency isn’t always what you expect. Everything pulls it down.

For instance my secondary coil with a given terminal capacitance has a Ro of 2.08Mcps. (Measured by driving the base of the secondary coil with a low power transistor oscillator directly and hunting for the Ro). Again while driving the base of the secondary, placing the secondary coil within the primary loops even without the tank capacitor connected, brings down the Ro a bit more.
Adding in the tank variable capacitor alters it once again. Adjusting the variable tank capacitor also affects the Ro of the secondary, while driving it from the base. I simply played about with the frequency and variable tank capacitor until I found the frequency that provided the strongest Ro, while adjusting the tank capacitor setting.. So then that frequency was used to base the Pi network on. Then with the higher power tube transmitter using that determined frequency, with slight adjustments here and there on the Pi network and such, resonance was achieved. It worked out to be ~1.97Mcps. There is a distinct drop in plate current when resonance is found.

Likely its still best to listen to what JP or Eric have said about coil tuning, rather than me.

So looking at the picture of your arrangement, I can’t see anything that you are doing majorly wrong. It seems fine. I could suggest (which I will try with mine at some point) adding in some extra tap points to your L-network coil (if you haven’t already). You may find a more optimal L- network coil inductance for a given frequency. So what you’re doing is fine it’s just a matter getting it roughly right and then via trial and error you’ll find the optimal settings.

Your work is great! The thing is that you have actually bothered to build something! In fact it’s an entire Tesla coil rig based on Eric’s teachings. There is so much to learn in all of this: Power supplies, transmitters, coils, Impedance-networks, tuning, displacement current, Resonance, Maths, etc, etc. So you’ve done great and you should keep going. I’m sure you’ve learned a great deal from when you started. So have I.

What you have done represents the tiny handful of experimenters on the planet that have actually made something and shown their work publically regarding Tesla coil design and function, as Eric Dollard has taught! – Which by the way, is a sh##-load more than what most other people have done.

It doesn’t have to look pretty or highly polished (after all it’s experimental). The main thing is that it you’ve had a crack at it and produced something is actually started to work. So you’ve done well and are on the list of the small group of people who have done so. It would be nice if there were more of us... Probably as a reuslt you’re now also on one of those other “watch-lists” Haha.

[orgonaut314]

Thanks! Yes it is all new to me. I lost most time trying to build the tube driver.

You mentioned that the plate current was dipped at optimum load. I realised that I did not measure the plate current so I tried a mA meter between the dc power and the anode but that gave me 10mA and nothing dipped.

So please could you help me out what current I have to measure to dip the plates?

This is my grounded grid driver.

[Sputins]

Thanks! Yes it is all new to me. I lost most time trying to build the tube driver.

You mentioned that the plate current was dipped at optimum load. I realised that I did not measure the plate current so I tried a mA meter between the dc power and the anode but that gave me 10mA and nothing dipped.

So please could you help me out what current I have to measure to dip the plates?

This is my grounded grid driver.

Yeah the milliamp meter (10mA, 50mA, 100mA, 300mA or whatever is appropriate) goes between the B+ and the main plate (anode) choke. (You don’t want RF through the mA meter) - So you measure the current consumed on the plate. It is an invaluable tool in helping confirm resonance and knowing what your transmitter output is doing.

You will likely see it sit constant for the most part. Although it will read highest when out way of tune (or heavily loaded). However once the impedance match-network and primary tank are in perfect tune, you should see it drop to a minimum amount.

Above is the basic wiring diagram. Adding in a B+ voltmeter is also handy.


Mine for example can draw up to 210mA (two 807’s) when way out of tune and bad Z match and the tubes are under stress and getting hot. When in perfect tune the plate current can drop down to less than 40mA. Of course under load driving a light bulb filament the current on the plate rises. I simply adjust my power supply input voltage to remain on comfortable 100mA when powering loads.

[orgonaut314]

Nice! I will include some meters in my driver too. I found this document that suggested how to make a pi filter with a grounded grid:
http://deepblue.lib.umich.edu/bitstr...pdf?sequence=5

It says on page 10 to use the output capacitance of the tubes as the first leg of the pi. I have retuned the whole thing now and get my mu of 5 as a max again. Pi does work better this way.

Now my driver is still low power but what kind of voltage do you have on the pi network? I wonder how high it needs to be to get some lamps burning.

[orgonaut314]

Something else. I have read this article from Vassilatos on Tesla and he explains it very well.
1996--Gerry-Vassilatos--The-Broadcast-Power-of-Nicola-Tesla.pdf

To summarise. Tesla discovered a new type of electricity when working on impuls currents. He discovered that this new electricity was transported as a beam wireless through the ether and induced electrons in metals.
Vassilatos says these where all simple primary tank circuits with spark gaps. Than Tesla discovered that metal would focus the energy and he put in metal object inside the primary. Eventually he put in coils inside the primary and discovered that the voltage in the coil would raise not through magnetic induction but because the new electricity would induce higher voltages in the succeeding windings. So the voltage on the end ring of the secondary is caused by the new electricity.

This would also explain why the longitudional network mentioned in an earlier
post would have the voltage raised much above the expected voltage.

If true how could the world miss this new type of aether electricity?

Great article.

[Aaron]

4 Eric Dollard Updates

John Polakowski was recently at Eric's lab advancing his magnetic amplifier work and doing more work on the longitudinal loading coil network for the transmission lines. We'll post details on this as we can.

Justin Miller is still there working in the field with Eric on putting up crossarms and doing other work with the transmission lines. Details coming...

Charles Roland Berry, a music composer from Seattle created this short video to raise awareness about Eric Dollard’s work and his upcoming presentation at the conference. https://www.youtube.com/watch?v=cSGbTsR6R2A

There are 2 days left for Eric's Seismic Indiegogo campaign - anything you can donate before it expires would help immensely. Many of you have donated by PayPal and that of course won't show up on Indiegogo but we'll be giving a final accounting of everything once the funds are received by EPD Laboratories, Inc. Please donate here now: Eric Dollard - Tesla Seismic Warning System 2.0 | Indiegogo

Sincerely,
Aaron Murakami
EricPDollard.com

[dR-Green]

I believe dR-Geen said the 20% height to width ratio format produced better output than the spiral coil format.

Greetings all. I'm currently on a camp site in France so haven't been on here but making my way home now. In the meantime, haven't read everything but as for the quote, it would also depend on primary and secondary coupling etc. It's easier to adjust on the solenoid style. And mine weren't designed using any particular considerations except the important basics. Overall solenoid is also easier to make.

Tuning with extra coil using Eric's design will be tricky which is why Eric recommends to just use the secondary. But tandem mode with extra coil is easy and improves performance but frequency will not match the original design. Alternatively the Colorado Springs coil can be scaled to a specific frequency for use with extra coil through keeping all the relative and relevant ratios constant.

[orgonaut314]

When you are back perhaps you can explain how the mast capacity is used as I do not get it. Is it a LC resonance with the coils or does it just change the tandem mode 1/4 wave resonance a little as extra burden?

[ldrancer]

ldrancer, think about it this way. If a large earthquake suddenly comes, it might produce some billions of dollars in damages. On the other hand, if you announce "tomorrow Los Angeles will be hit by a massive earthquake, large enough to cause billions of dollars in damages" and people panic -- jam the freeways, empty the grocery stores, start riots, go on looting sprees -- then it might cause ten times as much damage! That is the ethical conundrum which the Advanced Seismic Warning System contains. Which is the correct course of action?

To be sure, we cannot know in advance that announcing an earthquake is *likely* will produce panic. You could therefore argue withholding the knowledge which would allow people to prepare themselves is ethically wrong, even if we believe publicizing it would trigger mass unrest. Nevertheless that is Eric Dollard's judgment to make.

For more on this, see https://en.wikipedia.org/wiki/Trolley_problem

Aaron, I think what ldrancer is objecting to, at its core, are Eric Dollard's, shall we say, antidemocratic tendencies -- his way of trusting large institutions (the government, large corporations) and speaking frequently of keeping knowledge for them (such as information about an impending earthquake) rather than making it public.

No doubt this is a product of his personal history. Mr. Dollard after all experienced his "golden period" (or at least he seems to view it as such) while working for the Navy, RCA, and Bell Telephone... the biggest of the big organisations in the US at the time. Nevertheless from the perspective of a member of the general public -- and I think we have all come to understand that, when the chips are down, these organisations have only their own interests at heart and certainly not ours -- this is indeed a disturbing aspect of Mr. Dollard's character.

The fact that the Advanced Seismic Warning System appears to be completely dependent on the US "national security" apparatus, and in turn makes Mr. Dollard dependent on the same, is unfortunately not a point in its favour.

alright alright. HOW SOME STATES DID NOT LEGALLY RATIFY THE 16TH AMENDMENT

and your using scare tactics just as the destroyers of eric dollards previous work did.

what your doing, by only giving it to certain people, is the same, as what they done to Tesla. thats right, putting a meter on it. Oh well let you know if the big 90 story building in front of your 30 story apartment complex might, topple over. sure sure, give us some money for it. sure sure.

thats a meter, the same thing they done to tesla. now everything else i said is true also.

panic, scare tactics, lincoln used them, and a lot of other piles of crap, running for office, in office, been in office, have and had used them.

whatever you think ofr yourself and dont tell me what to think. id give out a scenario, opposing you, on your think of it this statement but that would only be fighting with you which you probably live off of. ill just let others do my work, see any arguements against lincolns scare tactics he used for a fiat currency system, wrote by.. ah. give me the name ill read it tell you if its good. original work only and a site thats been on, uneditted for past not, right now.

see up to date information. let me just disprove y8ou real quick. building, fire alarm. ok. same concept right? whats the difference between a fire and a known to soon happen earthquake? alright nothing? so, if what you say is true, why isnt there a move right now, to remove fire alarms from buildings for?

[Sputins]

Elevated mast capacity

When you are back perhaps you can explain how the mast capacity is used as I do not get it. Is it a LC resonance with the coils or does it just change the tandem mode 1/4 wave resonance a little as extra burden?

I’m sure dR Green will have an answer for you. I’m not 100% certain, except for a given terminal capacity, let’s say a 4 inch hollow metal ball, increasing the elevation, or distance from the coil (from either secondary alone or with an extra coil) it does change the overall resonance of the system. Why? It could be for several reasons…

Most likely this is because of the added inductance / capacitance of the additional length of conductor (wire / rod) between the coil and the elevated terminal capacity.

Or perhaps the elevation above the ground itself plays a role too?

Eric, I think mentioned somewhere, that with a higher height of the terminal capacity then less lines of force from the elevated capacity were shorted out to ground?

Perhaps the elevated terminal capacity then begins to act more like an artificial ground because it is more isolated from the earth ground? So then the TMT has something (harder)? to push against in order to cause a greater current delivered into earth ground?

As we know, Tesla had the mast height inside his tower made adjustable, until an optimum height (gap) was found…

I have a 6 meter telescopic rod, that when I have the chance (outside away from roofs) I’ll experiment with various heights to see what affect this has on the system with a given terminal capacity..