Eric P. Dollard

[t-rex]

MagAmp

[dR-Green]

I'm stuck. Can someone please explain what this highlighted symbol means? Below it is the only thing I was able to find in Condensed Intro To Tesla Transformers page 28, but I have no idea what value it's supposed to have or anything? It's also there again on page 26.

[Web000x]

It is a lower case epsilon, ϵ, dielectric constant of the space around the coil.

In some cases, I have also seen it to denote the natural log base in Eric's notation.

[jpolakow]

Here are some pictures graciously provided to me by Tom Brown from RCA Bolinas.

These Photos were taken by Jim Stockford.

Jim Stockford's girlfriend and Eric:







Note in this picture the little "ghost" creature circled:


Tom was able to take a high resolution scan of the photo:

[jpolakow]

More photos provided by Tom Brown at the Integratron

Original Tesla Coil at the Integratron. Had only a primary and secondary:


Eric re-used the original coil form to make a new coil. The "cardboard tube" was removed, and just the bases at the ends used to make the form for the new extra coil. Fiberglass dowels were used between the two bases:



Eric was able to achieve the same size of discharges with this smaller coil.


Some nice discharges:







You were able to control whether the discharges were more branch-like or root like based on what side of the frequency you were on.



Here you can start to see the Coronium green:

[jpolakow]

Here is Van Tassel's original 4 Quadrant Theory





Van Tassel's Memorial:



Dollard at the Dome:

[Nhopa]

Manage attachment

Would someone explain why do we have only a total of 3.34 MB space allowed for jpg. attachments. If I want to post more pictures and clear my allotment then my attachments from previous posts disappear. So what gives?

dr-Green: I followed your advise and I can load the pictures into the ImageShack program, but I can't drag/incorporate them into my forum posting.

Eric: I got my next set of test results, unfortunately I could only post them as small pictures on which you would have to click to enlarge. So until I figure out how to place full pictures into my posting I will wait.

[Sparks]

How to figure out what Tesla knew

A Tesla transformer accumulates standing waves in the secondary. Envision a piece of coax aka wave guide inputting rf with a standing wave ratio of infinity. Not one wave gets out of that piece of coax. The energy supplied to the primary is stored inside the coax. We know that coax is a wave guide. In order to transmit em waves to the radiative element it is tuned to the antennae so that a quarter wavelength or a wavelength of a harmonic of the fundamental frequency employed "stands" on the antennae not in the coax. The current flowing in the antennae mass between nodes and antinodes then propogate perpendicular to the antennae mast in an everexpanding torroidal field of diminishing electromagnetic disruption of space it propogate through.
Anyone who has ever popped finals in a linear knows to avoid sws in the transmission line.
Tesla figured this all out over a hundred years ago. He systematically created a huge piece of coax. Now how does Tesla introduce his power from the scource to the coax?
Study his notes. Study the construction of his primary. Study Crookes' tubes. Study coronal discharge losses on transmission lines when one line is deformed compared to the other. Study the true nature of charge and why the magnetic field about a single charge is in alignment with the electric field about that charge and not when the charge moves. Study what Tesla was going to do with his hemispherical terminal on top of the MT. Study why Tesla combined geometry and algebra in determining capacitance and inductance in an effort to avoid any distributed capacitance in his secondary. Study electron cascade events and see where the energy is coming from to manifest these events. Study how coronal losses can be converted to coronal gain. I did now it's your turn if you want to know how tesla was going to take a 100horsepower engine and transmit 10megawatts of power from the MT.

[AstroNod]

Tesla Monopole & dipole .Virtual ground / Groundplane

Greetings all i am a new on this forum ,took first some time to study some of the posting thanks all for the great attribution .
Would like to attribute some of my findings of ,

The Tesla transmission system

mosty found on the internet and copy use the ground system mode.

1 with the ground `cable mode `secondairy `s connected to each other .
2 the ground earth system with grounding sytem in to the earth .
3 the Groundplane disconntected from the earth or issolated to earth.

likewise the the normal `Grondplane antenna` use a ground mirror .

a tesla monopole don`t need the earth / round rods / ect to work .


I made a test settup with a monopole with a aluminium foil. square under it for the Virtual Goundplane or better potential difference plate .

the Dipole i use can have spheres or plates the plates can be seen in the tesla patent Tesla Patent 787,412
787,412 - Art of Transmitting Electrical Energy through the Natural Mediums

So the monopole in the patent can be a groundplane above ground not connected to earth at all !!!

Highlike the Tesla Dipole as transmitter will work to .

The Plate instead of sphere can have better reception due to the surface area and air capacitance .

This is very usefull in communication techniques .

For power transmission and amplification :

The Direct Ground system and vacuum tube transmission line vacuum inside the tube should be 150 torr or less tesla did use till 120 torr. (can be found in the patents and colorado notes of tesla )

Vacuum tube can be a highpressure plastic pipe with and both sides a half Sphere . once at vacuum seald ready to use .

Superconductivity is a second option for the coil systems .

use this with a direct ground connection issolated from earth for total absorption of the transmitted and More important No scalar pressure in the earth of bigg powers if you respect mother earth and all living on the planet .

ground plate issolated from earth to each other 1/3 wide of its lenght to the coils.
(any shorter will influance the resonance frequency dramatic by the lenght of the grond WIRE (inductor).

use small powers for transmission communication or small power transfer applications by use a ground earth system .

By use with a virtual groundplane or dipole the earth is not connected to the system and can not be be used to measure the power out of the earth to find your location of transmission by use that technique. However satellite could measure other scalar potentials.

By the use of dipole / monopole virtual ground for Communication with extraterrestrial or air band communication



Resonance frequency is a bit higher in monople to dipole mode compare to groundplate model ... i did measure about 1 Mhz higher at 16Mhz

Use a variable capacitors to fine tune the inductive p. tesla coil or loop on resonance frequency . (extra butterfly or dual capacitor can give better SWR
however i did not use it by so for got good SWR with just the parallel capacitor. this sytem replace a `normal`antenna tunner .

do not use normal antenna tuners. it will blow up amplifiers . i use mostly 200mWatt or about 24dBm to see if the systems work .

i did use it with higher power with no problem running 2 electric motors however due to high frequency ,rectifier needs high demands, a tuned rectifier (diode own capacitance) is a option or high frequency rectifiers however i use it for communication experiments mostly.

measure the resonance frequency of the p. coil or loop . (without capacitor)

use in ground cable mode about 450/res. freq. in Mhz to get the wave length of the secundairy pancake coil .

measure the surface area of the p. coil try to match it with the needed sec. coil wire lenght . use no more wire length little less is ok about 25%

there other factors like sphere / plate capacitance and the wire lenght to the sphere or plate due to the system max resonance and Energy conversion efficiency.

More variations are possible like a tesla train system with more coils with same resonance hooked up in serries each sett with a own groundplate issolated from earth . Magnetic loop antenna`s with secondairy pancake coils . plasma spirals, VHF UFH SHF tesla systems, ect.

likewise a SHF telephone with tesla dipole ,normal EMF at 2.3GHz is your microwave oven frequency.

to all thanks for all the postings and special thanks to E.Dollard.

goodluck with experimenting and keep your resonance frequency`s secret before someone give you free energy .

John Joosse

[t-rex]

[t-rex]

Too Quiet Here

With all the material I have provided, this for one year now, why has it not created any activity here. Little comes back out of this effort to promote any advancement in understanding. What is there to maintain my interest?

It did get my car back in shape and a replacement PRC 47.

It would seem "Sparks" has figured it all out. Great! Perhaps he can begin in a series of writings here to explain in an engineer's terms his understanding.

73 DE N6KPH

[AstroNod]

Hello Sir E. Dollard , good to hear from you .
Great news about your Car.
Ed gray did love those sparks to .
I did leave a posting just before your new Steinmetz, and the Law (Theory) of Electro-Magnetic Induction.
However i am a new bee here and bussy with a plasma waterheating to make a test settup for full documentation.
What you think of my posting on the Tesla Monopole & dipole .Virtual ground / Groundplane subject.
Perhaps old news ,with some new light on it could bring good things .
post more pictures in the comming postings.

73 AstroNod

[dR-Green]

It is a lower case epsilon, ϵ, dielectric constant of the space around the coil.

In some cases, I have also seen it to denote the natural log base in Eric's notation.

Thanks Dave, I'll get back to work shortly Been trying to redo what Eric did with the coil results in an effort to try and understand how it was done and see what the newest results show.

[dR-Green]

dr-Green: I followed your advise and I can load the pictures into the ImageShack program, but I can't drag/incorporate them into my forum posting.

You might have to sign up. Then after you've uploaded the image it automatically displays the image with links, I then click on "My Images" on the top right and click "Share It" for that image and it offers more options. [edit] ... In the web based version. Dunno about the program.

Normally you need to put the IMG tag around the link to make it display on the forum, but the "Forum link" already has all the necessary code so it's just a matter of copy and paste into the message.

[dR-Green]

It is a lower case epsilon, ϵ, dielectric constant of the space around the coil.

In some cases, I have also seen it to denote the natural log base in Eric's notation.

ϵ = 1 ? [edit] Nope. I think I found it now.

From Radiotron Designer's Handbook 3rd edition



4th edition