We start with the main structure (core):
Picture 230 Picture 231 Picture 232
Picture 233 Picture 234
First thing first is the
core
. It must be a high permeability core, which is a material that has a high magnetic flux conductance. This can be easy determined by using two simple magnets and stick it to different metals, and see how well it shields one magnet from the other when they are in repulsive mode (Picture 235):Picture 235
So, a good magnetic shield is also a high magnetic permeability material. If we are searching for a low cost, easy to find, accessible high permeability material we could use, the metal that is used to shield the back magnetic field of magnets in speakers:
Picture 236 Picture 237
Picture 238 Picture 239
Picture 240
We will need two identical metal shields from old speakers. I don’t know with certainty but I think it is
Permalloy. I started by drilling small holes on the circumference of the inner hole, in order to achieve a disk shape core (more like a ring):
Picture 241 Picture 242
Picture 243 Picture 244
I then nicely smooth out the inside with a grinder (Picture 245):
Picture 245 Picture 246
And then the second disk:
Picture 247 Picture 248
Picture 249 Picture 250
Then, we are going to need the four magnetic poles. I will use ferrite for them (from a small transformer) Picture 251:
Picture 251 Picture 252
These are the final pieces:
Picture 253
Then we are going to drill square holes on the four corners of the disks:
Picture 254
Picture 255
And in the end, now the disks should look something like this:
Picture 256
The holes are big enough so that the magnets nicely fit in:
Picture 257
Then I used an insulation material to isolate the ferrite cores from the top and bottom cores (Picture 258and Picture 259):
Picture 258
Picture 259
Electric tape in many layers, to insulate the core from the windings (Picture 260 and Picture 261):
Picture 260
Picture 261
Now, the cores fit in nicely in their slots (Picture 262):
Picture 262
And now I start the winding procedure:
Picture 263
The end result:
Picture 264 Picture 265
Picture 266
And the final device:
-It’s not exactly the same, so how do you expect to work?
-Listen. Winding the top disk doesn’t make any difference what so ever. If it makes you feel better, then I promise you I won’t use the top disk coils in any connection or circuit. I won’t power them at all. Hell, I will even cut the wires forever if you make me mad. Ok?
-If they don’t serve any purpose, why did you wind them?
-I winded them for backup versions or setups. I will first run tests with only the bottom coils in all possible
combinations to prove and backup my theories presented so far, completely discarding the top disk coils, and then after I did all the combinations setups, I will go further by making modification to the first original prototype replica by winding the top core disk to. So I winded it in advance thinking at this.
Does that make it clear?
-Yes. But the copper wire will still have a small effect by providing magnetic reluctance to these four circuits.
-That is true only if you have an outside magnetic field. But in this configuration you don’t. All the magnetic field should be in theory situated inside the core disks.
-I have another question: What is that small black ball to the right of your TPU in Picture 268?
-It’s not a ball. It’s actually a cylinder made out of same material as the core disks. It has two coils winded 90° one from each other.
-What’s it for?
-It’s intended to be placed in the inner hole of the TPU.
-Why?
-To study the inductance in the cylinder from the fields created by the coils, and to compare efficiency between this cylinder and the top disk.
-The fields created by the coils? Wait...you don’t make sense! You are contradicting yourself! You are insane! You said that there is no outside magnetic field, and that all the field should be situated inside the disks. How can you then expect this cylinder to have any effect on this type of operation?
-You begin to annoy me. You are right in this present setup. It won’t have any effect. But you are forgetting that the top disk is detachable. When the top disk in not present, and the four ferrite cores removed, then will be left with a Tesla Transformer 381970 that has a huge outside magnetic field.. Then I will use this winded cylinder to study the
efficiency improvement
between this setup and using a top core disk. Is this clear enough?-Yes. But why did you wind this cylinder? To study this “efficiency improvement” you are speaking about doesn't justify the reason why you winded it. This efficiency improvement could be determined even without the windings on the inner cylinder, by studying the input power to output power ratios of the bifilar coil you used on the core bottom disk. So what’s the point in having windings on this cylinder?
-I want to study how much actual power I can extract from the outside field with this winded cylinder and compare this power with the power produces by the secondary coil on the core disk.
-Ok. But why did you wind two coils 90° apart one from the other?
-Because that is how the field is created in a Tesla Transformer 381970, when you power the complete transformer, not just half of it. When you feed a second 90° out of phase signal from the previous one to the other half of the Tesla transformer, the poles will always shift 90° to form a common ordinary rotating magnetic field that fascinated Tesla so much. Besides, I also winded the cylinder in order to
study the actual phase shift
created in the TeslaTransformer by connecting the two coils on this cylinder to a two channel oscilloscope and plot one signal against the other.
<work temporarily abandoned>