Tag: colorado springs

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EPD Telluric Transmitter: Hakasays and Justin Miller at ESTC 2026

Distance calculation from Tonopah, Nevada to Keeler, California: 114.98 miles straight line

At 5 watts, the EPD Laboratories transmitter in Tonopah was still heard 115 miles away in Keeler, according to the presenters. Steve McGreevy received the signal on a radio receiver, not a matched coil. Hakasays and Justin Miller document the apparatus, measurements and range tests in their 111-minute ESTC 2026 presentation.

The project follows Tesla’s Colorado Springs research into earth-coupled transmission. The team has not yet measured propagation speed or separated the radio and telluric contributions to the received signal: “we can’t measure the speed of propagation at the moment.”

Get EPD Telluric Transmitter, the full 111-minute presentation

Buried-tank ground electrode system

The site’s electrode is “a pair of 10,000 gallon buried water tanks.” Justin Miller shows the digging, sealing, welding and backfilling it took to make them usable: “So again, huge amount of work to excavate these tanks, secure them.” With about 100 watts and careful tuning, Hakasays measured “about 2.4, 2.5 amps of RF current going into the earth.”

Current measurements, range tests and beacon hardware

  • 2019 wired scale model: Eric Dollard’s 2019 20-to-1 model of the Colorado Springs system, where “this one wire is powering up 500 watts,” through a wire, not the earth.
  • Ten feet that mattered: moving the coil from the deck into the shop took the impedance from about 10 ohms to about 18.
  • Light bulbs as test loads: automotive turn signal bulbs as an impedance check when the vector network analyzer “wasn’t giving us the right info.”
  • Below 5 watts: with the radio at its minimum, they detuned the system and estimate reception in Keeler fell away “somewhere between, we think, about 1 and 2 watts.”
  • A daytime drive: two eight-foot CB whip antennas on Eric’s car, to a minimum discernible signal about 56 miles out.
  • CW beacon hardware: an Arduino CW keyer built around a mercury-wetted relay, so surges from the transmitter would not “smoke the electronics.”

What the 115-mile reception does not establish

“We know it has a radio component to it, we know it has a telluric component to it,” Hakasays says. To separate the two, he proposes a time-of-flight test with GPS-disciplined oscillators at each end. It has not been run yet: “And we just don’t know until we do deeper measurements.”

Supporting Eric Dollard’s research

EPD Laboratories, Inc. is a 501(c)(3) nonprofit research organization carrying Eric Dollard’s work forward at its Tonopah, Nevada field site, where this transmitter stands. Donations are tax-deductible. Donate to EPD Laboratories.

The 2026 ESTC releases so far

Hear about each release first

Energy Times readers hear about each ESTC 2026 release as it goes live, along with new books, papers and research from emediapress.com. It is free, and you can leave any time. Get Energy Times.

Get the EPD Telluric Transmitter MP4 (111 minutes)

Aaron Murakami
Energy Science and Technology Conference · emediapress.com

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Build A Better Tesla Coil: Hakasays at ESTC 2026

Hakasays at the bench with signal generator and oscilloscope, characterizing the coil wound during the conference

Hakasays lights a bulb using the self-oscillating exciter circuit most people buy online, drawing about seven watts. Then he removes the feedback winding, the primary and the driver circuit, one at a time. On a hobby signal generator putting out a quarter to a third of a watt, the bulb stays lit. “So I think we’ve made a better Tesla coil. We’ve done the same output with almost no power.” His 2026 ESTC presentation, Build A Better Tesla Coil, 137 minutes, is out now as a download.

The two-coil spark gap machine everyone calls a Tesla coil is not the three-coil arrangement Tesla ran at Colorado Springs. Hakasays has been building coils alongside the EPD Laboratories work, including the telluric transmission platform, ever since the 2019 conference showed a 20-to-1 replica of the Colorado Springs system built by Eric Dollard and Bruce Gavin.

Get Build A Better Tesla Coil, the full 137-minute presentation

Measured, not judged by the sparks

The coil on his bench was wound at the conference itself, in the first day and a half. He finds its resonance live with a signal generator, a scope and a field strength meter. Then he works the quality factor of an earlier coil on screen: 1470 and 1463 kilocycles, 7 kilocycles of bandwidth, “we divide that, the 1466 by 7, and we get a 209 quality factor.” He compares that 209 with the 30 to 60 he reports for faithful spark gap replicas. “And you can see for yourself. You don’t have to trust me for this.”

For builders

  • Frame material, ranked by loss: “The PVC is one of the worst materials that you could use to wind a Tesla coil on.” And: “You’d be better off winding a coil around a tree.”
  • 3D printing: why dark filaments are a trap (the pigment is usually carbon) and what to print with instead.
  • Wire and spacing: gauge, cost and weight, and why turn spacing changes what the coil is.
  • What killed a telluric coil: unpolished copper tubing oxidized in the air, and the fix.
  • Matching the drive: Bruce Gavin’s method for letting a 50-ohm ham radio see a match, “set it and forget it.”

Inside the 137 minutes

Three demonstrations on stage. The striations in the lit tube, which he attributes to “where the fields have nodes.” The field strength meter walked backward across the room, 50, 40, 15, down to about 5, “nowhere near the coil.” Why Tesla ran between 50 and 100 kilocycles. One three-coil system lighting 400 watts on another through a single wire. And his closing line: “Go forth and build.”

The 2026 ESTC releases so far

Gangrene Energy and The Alexanderson Antenna, Eric Dollard. Onan and Dynamotor Tech, Al Francoeur. A Foundation for True Science and the free The coMra Effect, Adrian Marsh PhD. Orgone Energy, Tom DiFerdinando. The free 2026 Panel Discussion. And today, Build A Better Tesla Coil, Hakasays.

Hear about each release first

Energy Times readers hear about each ESTC 2026 release as it goes live, along with new books, papers and research from emediapress.com. It is free, and you can leave any time. Get Energy Times.

Get Build A Better Tesla Coil

Aaron Murakami
Energy Science and Technology Conference · emediapress.com

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AMInnovations by Adrian Marsh

AMInnovations - Adrian Marsh
AMInnovations – Adrian Marsh

Adrian Marsh is very skilled with electrical engineering and has a lab where he has not only done some phenomenal work – his builds are high quality and beautiful as well! If you want not just picture and videos of experiments but hard data and a lot of technical detail based on experimental results, you must visit his website.

ADRIAN’S WEBSITE HAS TWO VIDEOS THAT ARE REFERENCED IN THIS POST – UES THE LINK PROVIDED AT THE BOTTOM OF THIS POST. AND MAKE SURE TO CHECK OUT THE REST OF HIS WEBSITE!

In the picture above, Adrian is explaining to Eric the waveforms that the Vector Network Analyzer is outputting from measurements of the 20:1 scale model Tesla coil replications. Raui Searle, another skilled engineer in the arts is in the background of the picture.

The analyzer being used cost less than $500 USD and is about as accurate as a $100,000 old Hewlett-Packard analyzer! You read that right – for less than $500, you can get the same results as a 6 figure one that has been used by industry for many years!!! It is a MUST HAVE for anyone interested in these experiments.

If you want to get one, go here: Vector Network Analyzer

For quite some time, he has been working on replicating and innovating various experiments based on the teachings of Tesla, Dollard and related. His website is quite a compendium of research on different projects including the old diathermy machines, multiwave oscillator, Tesla’s radiant matter experiment and more.

He has attended a few conference and at the latest 2019 ESTC, he brought a vector network analyzer to measure the 20:1 Colorado Springs replica for Eric Dollard’s presentation but unfortunately, he was unable to do that since much of the equipment was packed up and left prematurely.  Instead, he was able to modify the Multiwave Oscillator pulse modulator that I built (my personal unit) for some experiments with the Tesla coils used for Dollard’s 20:1 Colorado Springs replica.

Go here to watch two videos where they are doing the experiments with the MWO pulse modulator and the 20:1 scale model replicate Tesla transformers as well as details on what the Vector Network Analyzer is measuring. Click below…

ESTC 2019 – Tesla’s Colorado Springs Experiment

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* NEW RELEASE * THEORY, CALCULATION & OPERATION OF THE COLORADO SPRINGS TESLA TRANSFORMER BY ERIC DOLLARD

Tesla Colorado Springs

Theory, Calculation & Operation of the Colorado Springs Tesla Transformer by Eric Dollard
Theory, Calculation & Operation of the Colorado Springs Tesla Transformer by Eric Dollard

* NEW RELEASE * THEORY, CALCULATION & OPERATION OF THE COLORADO SPRINGS TESLA TRANSFORMER BY ERIC DOLLARD

We’re very excited and honored to be a part of history where Eric Dollard shows a working 20:1 scale model replica of Nikola Tesla’s Colorado Springs Magnifying Transformer!

If you ever wanted to know the truth down to the finest detail on what Tesla actually did, here is your opportunity. Not only will you learn the operating theory and more data than you will ever want to know, you’ll get all details on how to replicate a 20:1 scale model along with an actual demonstration by Eric Dollard and Bruce Gavin. So, it’s not just talk, you see the demonstration that blew everyone away!

Go here to get your copy now & learn more – see some pics!! https://emediapress.com/shop/theory-calculation-operation-colorado-springs-tesla-transformer/

There are 5 things that come with this package.

  1. Part 1 of the 4 hour presentation
  2. Part 2 of the 4 hour presentation
  3. 20 minute demonstration video
  4. 35 minute white board overview of the demonstration setup
  5. 553 page PDF of the PowerPoint presentation

The introductory discounted price is only good for the next 24 hours then it goes up to the regular price.

Go here to get your copy now & learn more – see some pics!! https://emediapress.com/shop/theory-calculation-operation-colorado-springs-tesla-transformer/

A portion of the proceeds to go EPD Laboratories, Inc., a 501(c)3 non-profit organization dedicated to the work of Eric Dollard.

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The Battle for Wardenclyffe – A Story in Letters

The Battle For Wardenclyffe
The Battle For Wardenclyffe

In Energetic Forum, which has been a leader in open source Free Energy and related topics, various members pitched in to transcribe a series of letters revealing the real Morgan-Tesla story that are now finally compiled in one single book by Ernst Willem van den Bergh.

Many know the story of Nikola Tesla. How he wanted to provide energy to the whole world, how he contacted the worlds most powerful financier J. P. Morgan, how he build a huge tower and…. well, that is where it ended.

Many speculate on what exactly transpired, but what was it that really happened? This book does not tell a story, instead it provides the letters exchanged between N. Tesla and J.P. Morgan and a few others.

These letters, that up until now were only available to a select few, they tell the true story. They were saved on microfilm and through a community effort they have been restored so that now you can read them.

The author/composer of this book has been working relentlessly on recovering Tesla’s theories for over a decade, researching his work and recreating his experiments. One day, perhaps, we will have the unlimited and clean energy source that Tesla wanted to give us. Many fascinating discoveries have already been made and with the purchase of this book you are supporting this work.

Get your copy here: The Battle for Wardenclyffe – A Story in Letters

For information on Ernst’s other book, go here:

Tesla’s Magnifying Transmitter: Recreating Tesla’s Dream