The whole system is described in that lecture. This includes the impulse system (magnetic quenched spark gaps).
The transformer is a special no core transformer that completely separates the polarities in the output ie +,-
What you do with the system, well Tesla started to experiment with it and wrote down his results that even includes lighting and how it is different then the current 2 wire system. The system still has two wires to connect components but in the end it does not connect back to the source, it instead connects to a metal mass.
In most cases you can see the metal masses in TK's devices. This is the big clue here.
https://www.youtube.com/watch?v=qVUN3GsekKQ This is the plate motor version that directly mirrors the experiments in the Tesla Lecture. Of course the metal mass is acting like a virtual ground so the mass can be replaced by the ground itself using the mass of the Earth as the final metal mass.
https://www.youtube.com/watch?v=ADr1lT9MeIE This is the version that uses the ground instead of the metal mass.
https://www.youtube.com/watch?v=xIrvC2DjXw0 This is the version with 3 phases generated from one thick coil in the center.
The actual operating of these devices depends on the thick copper part to how much is generated from the excitation field the thick coil receives from the special oil transformer. This exciter field charges copper and directs those charges to flow via the coils geometry. So the output of the special coil energizes the thick output coil and transforms down to a very heavy current which creates a very heavy magnetic field around the thick inner coil. This field spins around the coil giving it a direction and coincidentally polarity. The spinning magnetic field then generates electricity in the surrounding coils at different phases determined by the position of the external coils. In the first version the single coil was inside of the heavy exciter coil. We know this because the spark gap was just prior to the thick coil. Want more power? Then increase the mass between the copper output coils and the metal mass or Earth connection you use. The latter (Earth) is not variable except for the connection to the Earth and is harder to find the best ratio for a specific setup.
There is no secret here and is fully understandable if you knew where Tesla was at in his learning about this energy. This is the same type of energy that they called blue fire and that caused a great many DC linemen deaths and it was the whole reason Tesla was investigating this for Edison when Tesla was working for him. Since this energy can be transmitted through the air the metal mass recycles the energy back through the system via the main exciter coil(Heavy coil. This creates a stream of energy that has an inertia to it. Meaning you can pressurize the energy and amplify it's output via feed back of the mentioned cycle. You might have noticed two boxes being used in the last video. One is the special transformer box (smaller) and the larger box is the impulse circuitry ie spark gaps and caps to hide what really is running that setup.
There is one thing I would like to mention. Do not use the impulser below 2k cycles per second. A single blast will do exactly what it did to the linemen, Death, if your voltages are extremely high, Hence the reason for the metal shielding on the special transformer. Tesla also said that there were many effect to come from this energy field. From spontaneous light in the field to cool and hot breezes. Tesla was of the opinion that anything above 2k was perfectly ok for the biological entity, meaning us. Coils on the other hand were adversely affected with a white fire like plasma. So precautions must be taken with exposed coils and metal in the exciter field. This would include a metal mass that would build up a charge so big that it would turn copper bright white hot if there was no outlet like a ground on the metal mass. My take on this is that it can be used safely once we start experimenting on these kinds of systems. Do I have everything correct? Probably not since I haven't started on my experiments in this case. I will be starting very soon so time will tell...
Oh ok here is a refined idea from the first 3 phase example to put out 100kw.
In this example he uses 3 independent excitation coils inside of some very tall output coils(Blue).
https://www.youtube.com/watch?v=_CRkDySQCSM You can also see the shielding they used very clearly in this video to keep the exciter field in the room with the generating coils.
Ok let me see if I can explain this a bit better:
What TK has built is an exciter of one way impulses. Very much like a water pump. Just like a water pump when you change the size of the water couplings a simple event happens. The system becomes pressurized. That pressure comes from the output devices in TK's experiments with the exit being a connection to the ground which presents a vacuum to this energy. So there we have it. Tesla knew about charges and he knew all matter had charges with the metals having tons of charges. Charges move in respect to a high voltage field. If the field is polarized then it will flow in one direction hence the coils.This system works like a pressure washer and the outputs all connect to the ground. A portion of the pressure is used in the loads and returned to the ground completing the loop. Any extra energy is then pulled from the ground via the space in between the ground loops. Hence why you can loop this system. Scrub the input by using a diode bridge and cap and you got a system that can power itself via an inverter. Charge the cap and it will power itself up after a few seconds and run anything you desire within the material limits of the coils.
This only works for impulse energy sources. Thats a system that provides impulses of only one polarity. Anything within the field gets charged up as the field around the emitter is energized with the impulses. The impulses cause the in between areas of matter to become strengthened so that a tremendous amount of energy can be transmitted in and out of matter. Since all matter is radiant to a degree this increased energy flow raises the energy available to the matter and it radiates more after being exposed to this field and while in the field. You could think of it like this: The system causes more conductors of energy to be attracted to everything in that field. If the matter containing the conductors condenses as well you get an amplification of the energy it can pass and also energizes the matter because it is already radiant. Doing this in a single burst is very dangerous to the matter exposed to the field because the conductors condense then explode outwards ripping apart the matter in the process. But in the event thats what people want they would have to have some very hefty equipment to do that. Tesla was an extreme scientist. He did it like that to know the very dangerous effects first so he could tackle those issues first. One fine example of the power of this system was when he exploded some fine wire using this technology. He said it exploded like the finest dynamite of his day, so be careful when working with this technology. Start low and slowly push higher noting any effects you might see. I don't know about the shielding yet if it was a static shielding or a grounded one. I am of the assumption it was a static shielding because it would reflect the energy pretty well as it got charged up.
If you didn't notice the antenna they were using it is a high frequency antenna to monitor the output of the system inside of the shielded room via the opening in the top of the doorway. The bottom was covered with a copper screen as seen in the video.
