Ernst says he has the "goods" on Tesla and has filed a patent

[Farmhand]

@TinselKoala and all Tesla Coil experts:

According to my humble and rather inexperienced opinion the Slayer-Exciter or Kacher circuit (with a transistor instead of a spark gap) is a very powerful modern versions of the Tesla Coil circuit.

I am talking about a circuit similar to the one attached. One can leave the upper end of the secondary free (no "CFL with parallel capacitor") and has a way to produce long sparks without the hussle of a spark gap. The spark gap was necessary for Tesla because he did not have modern transistors. But today we have very strong and very fast transistors and can work with them.

One could introduce a more clean switching, may be with a second transistor, which would allow to increase the input Voltage from 12 V to may be 24 Volt. May be one can use a MOSFET with a second transistor to switch the Gate cleanly.

Cleaner switching would also allow for more power through the primary (without heating the transistor too much). May be one can feed 100 Ampere through a sturdy primary. The back EMF of the primary could be discharged to ground with a strong Zener-Diode (parallel to Drain/Collector and Source/Emitter) to protect the transistor.

So, may be the experts would go along this rout with me, at least to develop a circuit on paper.

I am not so much interested in "OU or free energy", rather in a moder Tesla Coil circuit which delivers long sparks with a rather low input. Or said differently, I am interested in a very efficient Tesla Coil circuit which transforms most of the input energy into long sparks (and does not wast energy in the rather obsolete spark gap, does not need a motor to turn a rotary spark gab and does not need an air compressor for quenching).

The Slayer Exciter or Kacher circuit driven with batteries also looks a lot safer to me because it has less critical components. The only dangerous High Voltage part would be the secondary. A lot of current through the primary from batteries even at 100 Ampere and 24 Volt can cause burns but no shocks (in case the back EMF of the primary is dissipated to ground).

Greetings, Conrad

Hi Conrad, I made an Armstrong Oscillator which is a kind of feedback oscillator,
but I was looking for a small input while creating good resonance so I could
conduct certain experiments. I'm not answering because I think I am an expert or anything,
as I certainly don;t claim to be or think I am. I just thought it could help a bit.

I agree with Tinsel on most things, and I support Ernst's efforts.

This is the first successful "resonant" feedback oscillator I built, it works ok but is fiddly
it took some tuning to get it to work as it did and it was still not exactly as it should have been.

Also it uses just one low side mosfet. A half or full bridge is much better I think.
The problem I found with the Kacher was the transistor heating because of not exactly "proper" switching.

At frequencies over 1 Mhz I had problems with my mosfet driver chip getting quite warm to hot.
Not sure why but at some times there was erroneous oscillations in the drive circuit, which may have caused that.
With more experience or time I could have sorted it.

This is a video of the oscillator using about 3 Watts but producing some fairly good effects on a couple of receiver transformers.
http://www.youtube.com/watch?v=TJd8TNC75AI

And the schematic is below, which can't really be just copied, the value's need to suit the transformer and such ect.
It might help with some parts of designing or modifying your own circuit.

Everything is still here and workable, but not set up the circuit produces quite impressive voltages on the primary,
it can get to over 150 volts peak to peak on the primary, and I did have a video showing the primary oscillating power measurement which was
kinda ridiculous it was so much. Cant remember exactly but it was a lot. Something like 45V RMS and 5 amps of RMS current, I think from memory or about 220 Watts of oscillating power or "Activity".
I can't seem to find the video.

You can see with little load the uA meter (dodgy field indicator) shows a medium value near the oscillator, but that drops when the receivers are loaded.
It does easily pin the uA meter if it is placed in the correct place.

I did some figures with the Spark gap coil and with 15 pF charged to 150 000 volts 750 000 times a second.
I used the charge in a capacitor app (electronics assistant) to get a value of 0.168 Joules x 750000 = 126000 Joules per second of "Activity". With less than 500 watts input, more like 380 Watts. I guess the 126000 joules per second could be considered as Watts of oscillating power or HP if divided by about 750 so, about 168 HP with 1/2 HP input.

These are kind of conservative figures, theoretically if the charge did not leak off my Spark Gap coil could develop voltages from a transformation rate of about 1:220 with 8000 volts input of 1.76 Million volts even without resonant rise.

[Farmhand]

If I do the figures for the oscillating energy in the ( secondary-extra- top load ) it shows how different the two methods are as in where the power oscillates.
With the small transformer driven by the Armstrong oscillator it has a transformation ratio of only 1:39 or so, then if the terminal capacity is 25 pF and the Frequency is 900 Kc and being a continuous wave transformer it gets resonant rise so if only the 12 volt input was oscillating in the primary the transformation rate would make 468 volts the terminal gets charged to. If the 45 volts is oscillating in the primary then that makes 1700 volts the terminal gets charged to. so if I take 1000 volts and 25 pF I get 0.0000125 Joules 900000 times per second which is  11.25 Joules per second of activity, or it could maybe be classed as 11.25 Watts of power oscillating in the secondary oscillating circuit. But there is much more oscillating in the much lower resistance primary circuit to make it happen. and only a few Watts input. 

My spark gap coil primary does not have a residual resonant action it's open circuited unless the spark gap is conducting so there is no real oscillating energy in it's primary.
It's shock exciter to the to the secondary oscillating circuit. Where the Armstrong oscillator is more like a wave excitement of the secondary oscillating circuit.

I don't think any proper power transmissions can be done without the continuous wave transformer characteristic and the primary "tank" to allow for reactive power to return to the tank.

I found the Karcher I made only worked at a lower harmonic of my transformer frequency, so I didn't like that much, that's ok with small loads but a heavy load will damp the free oscillations, whereas with a continuous wave transformer there is power in every oscillation, no free ringing. But lots of powerful resonant rise when no load or "when tuned to an appropriate load"..

I also think HV shock excitement of Tesla coils at certain frequencies can be detrimental to health. No way on gods green Earth will I ever allow the discharge from the Spark gap coil to conduct through my body, not on your nelly. The reason being that when loaded the actual input and to a degree the output frequency is that of the Break rate not that of the transformer. And 200000 volts at 400-800 Hz will cause damage. I'll bet my lefty on that. It likely would not cause death in the way that touching the primary coil would, but it still would not feel very nice. 

We must remember to be very extra careful with high voltage and powers, especially when working alone. I have a routine I never part from to ensure my life continues after the experiment ends. It's the PFC caps at 240 v and the 240 Mains, as well as the primary voltage, current and capacitance that I see as the most lethal area's. I have been bitten by the 240 mains and did survive somehow many years ago and I did also get bitten by a series of discharges 2 nF at 4000 volts which gave me a good thumping. Won't happen again though.  I felt pretty stupid after that one. Even though it made me smarter. 

Cheers

[Eniac5state]

Can somebody explain to me why Ernst says that the full explanation was given with that vid nr 5 ?
It isn't complete at all in my opinion. This is not the way to get immortal the way Eric Dollard is.

If mr. Tesla, who was all for humanity, would meet the two, who would he prefer ?  Haven't we been
teased and fooled around enough with ?  Most of us live in pain.  Did anyone see new facts ?
I certainly didn't.  Eric Dollard gets a book out soon. Again he will be the one to help us it seems. 

[forest]

Matt 6:24, Luke 16:13[/size]

[conradelektro]

@Farmhand: Thank you for publishing your Armstrong Oscillator. This is exactly what I am looking for. It will take me some time to understand it, but I will try hard.

Greetings, Conrad