Eric Dollard

[Nhopa]

You live in a beautiful historic area. How is your Welsh?
Today I got the parts to repair my scope's A5 board. We had 107 F today, so outside work was not an option. I thought about doing some more test with the telluric antenna, I will soon report on the results.
Orgonaut314 had some interesting comments about the coil distributed capacity. Recommend checking out US patents 1342209 and 1409352. Their intent were to reduce coils' distributed capacity. Figure 2 of patent 1342209 is a pancake style coil. dR-Green has good experience with pancake coils, I believe his early CRI set up utilized this type of coil.

[dR-Green]

Hi dR-Green:

This is a very nice setup. With so much water around you, you should have no problem creating a near zero Ohm ground.
I received my #10 gage copper wire today, but my oscilloscope broke down so now I am working on that problem.

Not quite the middle of London. About as far west as you can get without needing a boat.

https://en.wikipedia.org/wiki/Carmarthenshire

Typical bad luck with the scope breaking down as soon as you get something else sorted.

I appreciate your updates and experimental results and what not!

[orgonaut314]

Tesla's pancake coil is espescially designed for its high capacitance.

Quote:


In order to attain my object and to properly increase the capacity of any given coil, I wind it in such way as to secure a greater difference of potential between its adjacent turns or convolutions, and since the energy stored in the coil—considering the latter as a condenser, is proportionate to the square of the potential difference between its adjacent convolutions, it is evident that I may in this way secure by a proper disposition of these convolutions a greatly increased capacity for a given increase in potential difference between the turns.


Nikola Tesla U.S. Patent 512,340 - Coil for Electro-Magnets | Tesla Universe


I am going for the coils Meyl uses.

[orgonaut314]

I mean the wave that sees the capacitance between the turns in series and the inductance parallel. This mode is different from the resonance mode that sees the inductance in series and the capacitance between turns parallel.

[orgonaut314]

Hi dR-Green and Sputins:
Thank you for your comments.
I need some help sorting out the issue of distributed capacity.
In Tesla's CSN on page 72 (on the top) it says that the distance between coil turns would have to be reduced to 1/83 of the previous value in order to reduce distributed capacity. This number came about because Tesla reduced the wire size from #10 to #31 in order to have a much smaller distributed capacity.
I found two US patents, 1342209 and1409352, both of which claims that their invention will reduce coil distributed capacity. One states that the distributed capacity effect is inversely proportional to the spacing between the turns. This seems to be contradicting Tesla's finding.
Let say we agree with these patent claims, can we benefit by winding our secondary coil in accordance with one of the methods?
For one of my secondary coil I calculated 19.47 pF (this value will be re verified) for the distributed capacity. According to Tesla one can place capacitors in series with the coil turns to reduce the distributed capacity. In my case how do I determine how many and what value capacitors should I use.
Eric gives the spacing between coil turn centers as Tau=l/N*2xPi, this equation does not take into consideration the magnitude of distributed capacity as a function of the coil turns spacing. Take care.

Good question. I read that part of CSN and seems to me Tesla was trying a smaller wire using the same width and height of the coil. So he figured the distributed capacity was lower with the smaller wire and needs the spacing to be smaller by a somewhat different amount to get the same capacity. That leads to sparking problems. His calculations make sens and are close to his own experimental vallues.
But in this publication the capacity does not depend on wire diameter or spacing.

http://www.g3ynh.info/zdocs/magnetic...ons_131023.pdf


The smallest capacity is when height and diameter are equal.

To me it makes sense to have a high distributed capacity and look for the backward wave resonance mode.

[Aaron]

Latest Eric Dollard update

ERIC DOLLARD UPDATE - been a busy week and a half working with Eric on different projects.

ADVANCED SEISMIC WARNING SYSTEM - If you visit his blog - BLOG - Eric P. Dollard - Official Homepage the last several posts are all photo albums showing the latest work on the seismic project. They are on track to show signals coming from the ground early December. It won't be as sophisticated as what was at Landers but it shows the concept. Putting together an instrumentation system with chart recorders, etc... will be worked on next year. Eric also did a narrated powerpoint with pictures video presentation that will be on Youtube as soon as I get it edited and rendered. You will understand what is shown in the photo albums that were recently posted.

VERSOR ALGEBRA 2 - this has already been released, but there have been a few minor edits and that will be uploaded to the same download page as before. We'll send notice when it is available so if you purchased this book, you will be able to get the updated version with the new edits.

CRYSTAL RADIO INITIATIVE - There is a white board presentation with Eric teaching how to calculate the windings for a Tesla Resonant Transformer. That is so you can make a Tesla style crystal radio to receive signals from the ground. This will be available for $7 to help pay for the gas he used to drive here and work on this and other projects.

EXTRALUMINAL TRANSMISSION - this presentation has some companion books coming out later. One is dedicated to expanding on JJ Thomson concepts and the other is all the rest relating to extraluminal transmission systems.

EPD LABORATORIES, INC. - Eric is starting to do some experiments on the bench and there is a lot of glom at his disposal. I'll be sending some slotted standards shelves and bins and much of the glom will be stripped and parts organized. We are also getting a lot of stuff from ebay so Eric will have a fairly complete parts inventory to start working on other projects.

There's more, but this is the latest. Please support Eric Dollard and EPD Laboratories by giving a donation through PayPal - Homepage - Eric P. Dollard - Official Homepage - thanks for all of your support!

[Nhopa]

CRI update.

I uncoiled my 100 feet long #10 ga copper wire which the seller shipped coiled to a 4 inch diameter blob. I promised earlier that I will repeat the telluric antenna experiment with bare wire. So I set the AM radio to a very weak station and placed it next to the grounding rod, then I connected the bare copper wire to the grounding rod and there was barely any change in reception. Next I disconnected the bare copper wire and connected the insulated wire (which is still not buried) to the grounding rod and suddenly the volume has increased significantly. I suspected already that the bare wire will not work as a telluric antenna since during my initial experiment once I connected both ends of the 200 feet long insulated wire to grounding rods and the result were negligible compared only one end of the insulated wire being grounded. Next I will report after I finished connecting my star radial grounding system.
Remember Eric said that "bigger is better" for the telluric insulted wire diameter. The cost involved going bigger can go up exponentially. So I will try one more thing before I bury my insulated wire. I will run a second insulated wire parallel with the first to see if more conductor in the ground will further improve AM reception. If this works I can get for instance a three conductor #14 ga copper cable for underground services in lieu of a #10 ga single insulated wire, just connect the ends together of the 3 conductors, insulate one end and ground the other.

[Nhopa]

In the middle of London?

Hi dR-Green:

This is a very nice setup. With so much water around you, you should have no problem creating a near zero Ohm ground.
I received my #10 gage copper wire today, but my oscilloscope broke down so now I am working on that problem.

[dR-Green]

On the subject of earthing, I've been out taking some pictures of where I'll be setting up. This was the old coal shed, my stuff is the top part and the earthing arrangement will go in the garden in front, about 6-7 metre diameter star/ring, and I'll dig a channel under/through the wall to connect to it. A small structure just to house the coil in the centre might come later.



This is the field next door, which as can be seen is mostly like a giant bog and is soaked, the farmer even got his tractor stuck in it a few years ago, so it should be ideal for reception experiments. The whole area is quite marshy. The lab/shed is behind the bushes next to the house with solar panels. The bottom of the field where I'm standing is about 75-ish metres away.



The view from the top of the field. I also know the farmers who own practically every field that's in view so assuming that a decent mobile earthing arrangement is possible then experiments can be done over quite a good distance within view.



This is an old iron pipe in the ditch between the garden and the top of the field. It was installed 100 years ago to transport water 300 metres or so from a spring to a well on the side of the road for horses. Builders broke the pipe where I'm standing years ago but the idea I have here is obvious. It should extend about 250 metres in one direction and 50 in the other, unless someone else has also been digging and broken it.



And about a metre to the left of the iron pipe is what appears to be another spring which as far as I can tell flows independently of any recent rain. All in all the conditions look good!

[t-rex]

Sputins 2397

I am loathed to ask, but what went wrong working with John Polakowski?

I cannot get into the details on the air about Polakowski's disabilities or transgressions, other than he has received a dishonorable discharge from E.P.D. Laboratories for misuse of funds and failure to carry out commitments.

[Sputins]

Because of the requirement of special transformers and the high cost of audio transformers in general it is not feasible to move forward with the audio amplifiers.

Moreover, I still have no tools for constructing equipment, nor any real workshop as of yet.

It all takes too much money and I have no one to help me. (Polakowski turned out to be an incorrigible turd).

Do not get caught up in that 300-B single ended Phantasia.

The Push-Pull 6L6-G setup is still the "best for the buck," do not feed your money to the rats.

73 DE N6KPH

I am loathed to ask, but what went wrong working with John Polakowski?

[t-rex]

Sputins 2395

Because of the requirement of special transformers and the high cost of audio transformers in general it is not feasible to move forward with the audio amplifiers.

Moreover, I still have no tools for constructing equipment, nor any real workshop as of yet.

It all takes too much money and I have no one to help me. (Polakowski turned out to be an incorrigible turd).

Do not get caught up in that 300-B single ended Phantasia.

The Push-Pull 6L6-G setup is still the "best for the buck," do not feed your money to the rats.

73 DE N6KPH

[Sputins]

T-rex in the house!

Recently in an interview with Aaron, it was Interesting that you say you’ve designed a new type of audio amplifier that’s radically different from regular RCA designs. This new audio amplifier based on Bell Telephone wide band carrier technology and used in the front end of radar receivers. That idea seems pretty interesting and would be very popular. It could generate some additional revenue towards the bigger projects. - Is the idea behind the new tube amp design to amplify certain harmonics that would normally be distorted?

There was an overwhelming amount of information jammed into your most recent presentation at the Technology & Science Conference. I’ve watched it over and over. A fantastic presentation!

I’ve been researching single ended vacuum tube audio amps, as it would be great to build my own vacuum tube audio amp sometime. As you said everyone likes to use the 300B tube, what other alternative tubes would you suggest for audio work?

It would certainly be awesome to hear you go a little deeper into the JJ Thompson topic in the future sometime.

I’m looking forward to early November when I will have my workshop and experiments back in action.

Sputins.

[Nhopa]

Cri

I have this information but my L/D is .04 so I am out of range, unless I assume H as 1.00?

[t-rex]

Calculating Coil Self Capacitance