Donald Smith Devices too good to be true

[dragon]

Here is a pdf download for those interested in the brovin/kacher technology - sorry it's not in english but the schematics speak for themselves...

http://mazeto.net/index.php?PHPSESSI....0;attach=7744

Also the patent http://mazeto.net/index.php?PHPSESSI....0;attach=7742

[Duncan]

Tesla- Kapanadze generator

[soundiceuk]

Here is a pdf download for those interested in the brovin/kacher technology - sorry it's not in english but the schematics speak for themselves...

http://mazeto.net/index.php?PHPSESSI....0;attach=7744

Also the patent http://mazeto.net/index.php?PHPSESSI....0;attach=7742

Hi Dragon, thanks for these.

Am I right in thinking the coils go into resonance using the circuits natural resonance?

Cheers

[soundiceuk]

Hi everyone. Thanks for all the tips on my previous post. I have a new challenge. I just got my 3kVA iron core and I'm trying to take an inductance reading.

My little LCR meter takes readings at 100Hz 120Hz, 1kHz, and 10kHz.

So I took my first reading of the L1 on the trafo at 120Hz thinking that was "brilliant" cause that was exactly what I wanted! I took the value of L and computed the value of C @ 120Hz by setting the XL and XC equations to each other like I did when calculating the tuning caps for my primary and secondary coils.

I got suspicious when I saw that the computed value of C was pretty close to the measured value of C.

Then I realized I really needed to take the L and C measurements at the frequency that it will *see* coming from the upstream circuit. For my setup, that's 35kHz. It took me a while to grok that. But I get it now.

I saw a post about how to measure the inductance of a coil using a signal generator, but I'm seeing that to get it really precise, I need to hook it up to my L2 and I need my L2 to generate a really smooth signal at an even voltage.

So I'm back to tuning the L1 and L2, which I still haven't done effectively yet.

And I'll need to put some form of voltage control on what's coming off of the L2. Or I'll have to find a way to drive the L1 with a very smooth signal, but I'm kind of leaning toward the former approach (controlling voltage off the L2) because I think the disruptive discharge is important.

And really, before I do any of this, I need to a HF filter line filter between my NST and the wall and I need a HFHV filter between my NST and the spark-gap / tank circuit protect the secondary of the NST from high-frequency kickback. So I ordered a line filter and parts for a Terry Filter from eBay, which a lot of tesla coilers seem to like.

And I also need a way to make my spark gap quieter because it's *too damn loud*, so I guess I'm gonna build a series spark gap.

Free energy sure ain't free. :-)

Can anyone suggest some shortcuts? Am I thinking about this correctly?

Thanks!

[Dave45]

Also not to be forgotten in the conversion and adaptation is the Kacher / Brovin circuit and its variations here is a brief explanation of its operation

Brovin / Kacher Generator (Invention and Operating Principle) - YouTube
You will see an immediately similarity to the basic circuit that Mr clean sketched out for us This is Romero's take on the Kacher circuit also using an AV plug which may bring one of ZZZZs circuits to mind .. however this ones well tried and tested!




which is using either a flyback coil or in a later version a Tesla coil kacher driver per Romero circuit.MPG - YouTube

In the circuit diagram Romero states the shorted coil is where the magic takes place.

The shorted coil produces a standing electric field that can be drained from,
it pulls in the aether all the time not just in pulses.

[dragon]

Hi Dragon, thanks for these.

Am I right in thinking the coils go into resonance using the circuits natural resonance?

Cheers

Correct, they trigger the transistor base at L2's natural resonance.

[soundiceuk]

If this is the case, what sort of frequency range would it fall under, or is the frequency dependent on the length of L2?

Would it be greater than 20khz?

[dragon]

It would be dependent on a number of variables, all of which will effect the frequency. Such as the core ( air, iron, ferrite), the diameter of the coil, number of turns, etc. You can reduce the frequency using a cap across L2, the load will also decrease the frequency.

It's nice in a sense that it is "self tuning", but if your looking for a certain frequency it's not as easy as some others.

[Farmhand]

I have been thinking this, but just saw it on the richieburnett site, so i'm even more worried now...

Static spark gap analysis

--quote--
In a TC supplied by AC the static gap firings tend to collect in clusters around the peaks of the supply current. This is because the tank capacitor recharges fastest when the supply current is near the peak of a cycle, and the breakdown voltage is reached in less time. In practice the firing of an AC supplied static gap system is almost always irregular, and it is quite difficult to set up the system to fire regularly over several cycles but it can be done. In terms of performance this irregular firing does not appear to hinder spark growth although it does give rise to poor power factor of the system as a whole.
--quote--

Will this totally f my secondary resonance? One argument is... yes. The other is no... the gap won't fire again until the primary and secondary ring out, so it doesn't matter when the next pulse comes. And 35khz is way higher frequency than 120Hz so my downstream trafo won't even notice either.

Thoughts?

Good point to consider, this is my thoughts on it and from my experiments, I'm
thinking it happens like in my drawing below to a degree, it depends.

If the supply was rectified to DC and not smoothed it would produce the same
break rate as AC, Half wave rectified should produce half of the break rate of
AC or rectified DC, and DC if it could be kept at a constant voltage should
produce a constant break rate, but in reality most of our supplies would dip
the DC voltage, Don's original setup shows two half wave rectified outputs
"out of Phase I think" Which charge the caps. He uses no smoothing caps.

Rough drawing.


Uploaded with ImageShack.us

If the setup is tuned it shouldn't matter too much as long as the input
frequency is not too low, which is why i think the NST works well, they are
usually about 20 to 40 Khz. More rapid break rate will give a better result for
sure, to slow a break rate could cause arcing. Sparking Tesla coils I think use
fairly low break rates and big primary caps so the input is sudden and massive
which causes better sparks I think.

Cheers

P.S. A magnetically quenched spark gap increases the voltage required for the
gap width and shortens the arc "on" time, this means the gap can be narrower
and the break rate possibly faster, the smoothed DC supply would work best
with resonant charging as far as I can tell and definitely in my opinion requires
some kind of quenching or non static gap or interrupter of some kind.

..

[Seeker2011]

What break rate are you talking about for the spark gap?

[Farmhand]

What break rate are you talking about for the spark gap?

Hi Seeker, Yeah the spark gap.

I'm also thinking this is how the so called trumpet waveform might be caused
some thing to do with groups of firings or patterns of charging frequency to
spark gap frequency.

Cheers

[Seeker2011]

Sorry, that's what I meant. What frequency for the spark gap. I saw 200Hz somewhere. How fast can you make/break it?

[JohnStone]

.....
Next on the shopping list is an LCR meter.
I've never used one before. They do vary substantially in price. Only just realised the reason for this is because of the frequencies they handle.
Can any experienced electronics guys shed any light on this subject please.
Thank you

Hi,
most affordable LC meters make use of 2 stimulation frequencies (ca. 40 KHz) (you got it ) only at maximum and they are too low for our application. So they are limited. And some of their range being unreliable. The main problem is measuriung capacitance at coils.
There are new designs along with sophisticated dds frequency generators. being affordable. They measure at 15kHz - 750kHz!!!! sine shape. Thus thy can measure the capacitance of short coils as well.
I do not own this type and have no experience but from a technical point of view this seems very sweet. I would give this technology a try if I require a new LC meter.

BTW:
- These are Kits (smd components avoided or already solderd). Housing, PSU, USB adding cost.
- See the frequency generators of same manufacturer (up to 10 MHz) based on dds as well.
- Sorry for German eBay text. I am ready to translate if required.

[Patrick Kelly]

Utkin update

This diagram, under the title "The Simplest Version where the output has zero influence on the input" is the only update to Vladimir's document.



The updated document is at http://www.free-energy-info.com/VladimirUtkin.pdf

I encouraged him to join this forum but he does not like forums, I gather, due to previous antagonistic experiences.

Patrick

[JohnStone]

Hi Patrick,
Multiple thanks!!!!
Such knowledge is vital for understanding and targeted experiment.

Just for clarification:
1.
I assume that the part "exitation spark" is meant as exitation spark with few primary windings and not being related to wave length.

2.
In left schematic: the capacitor marked with "resonance" could work as shunt as well? I measured at a coil being shunted or not shunted the same (unexpected for me) natural resonant frequency. In case the capcitor is too small in value for performing as shunt, it will very probably deviate the coil from it's natural frequency to a lower one performing as resonant LC circuit conforming textbooks.

3.
I feel with Utkin with his aversion against forums. He seems to be an individual with vast knowlege outside textbooks. But how to express? All our electrical terms are occupied with imaginations out of standard textbooks. As Tesla experienced - there are no terms in order to precisely transport own imaginations without being distorted. Nevertheless I appreciate Utkin's notions and give him warm thanks for his effort.

rgds John