So happy it finally works.
had so much to learn to get it right.
I didn't test with L3 yet. just L2 L4 loose coupled (with L1 L5 close couoled)

it's now fully equal tuned with equal capacity for the high and the low circuit.

 next up, is again to tune impulses with series resonant sine waves to odd harmonic, while keeping a close eye on the current magnification in L2 and L4.

both 2 and 4 should have intense magnetic fields. that are in phase (in attraction).
while at the same time having large inductive spikes.
And also still have plenty of series resonant sine wave voltage

Im now tuned with 400pF over l1 and L5 giving around 1.5uS spikes
and 46nF series to l2 and L4
giving resonance around 82 kC

I'll be tuning lower, but the goal stays:
maximum impulse voltage (1000V max)
maximum resonant voltage AND current of 2 and 4

I probably first will play without L3 and see how the coils behave, and at what distance it works best.

then I'll insert L3 and tune it agian.

but I am so happy it finally is coming together.

Eric Dollard, in his transverse longitudinal waves borderland video stated his coil had 2 resonant frequencies.

the lowest had low Q and the higher frequency had a high q and is the longitudinal resonance.

I find this also in my setup. I testes with the 2019 high switched circuit only.

the lower 71.7kC (L2 is 56nF) needs more power, for less output. 0.38A X 32.3V dc input
and output L3 is around 300V pp with load.

same setup tuned to 105.8kC has a higher Q (very fine tuned) and only needs 0.22A X 32.3V Dc  for a output of 400Vpp.

the lower signal also doesnt look fine.
the higher is a nice perfect sine with impulse.

From now on I will only use the higher resonant frequency as it gives better results

L3 is impulsed from both sides. but L3 has only one side that is maximum resonant.

this is due to the speaker wire.

I think best would be to use thicker 4mm2 wire, but wound like tesla patent 512340, side by side.

this way both sides will be sensitive to the positive impulses on one side and the negative impulses on the other side.

L2 and L4 are 2.5mm2, the L3 4mm2 and will need to be equal mass again.
this will result in less wire length, but niw they are side by side wound, its more equal in size to L2 L4

in the future, the coaxial wire will be wound side by side.

20V is created by 2 charged lead acid. one 6V and  12V in series.

all voltages need to be properly stabelised  by multiple caps.

input is by TTL A and B (out of phase) 50% duty square wave.

mosfet= 2m0160120d

r1 = 8.2 ohm (charge)
r2 = 3.3 ohm (discharge)

these are the voltage signals of L2 and L4.
Dc probe 100V per div
impulses around 300V while the sine waves are only 40Vpp I would like both to be larger.

this is driver by symmetrical power.
2x 32.3V  0.19 A(channel1) and 0.20A(channel2)
around 13W total.

L2 is tuned with 56nF
L4 is tuned with 59nF
l1 and L5 tuned with 400pF each.

res @ 115.8kC (second longitudinal)

Tuning down should give larger impulses, but even smaller resonant sine waves. but stronger current.

just ordered 4mm2 speaker wire (12awg I believe) for a new L3 coil.
it will again be equal copper mass. to L2 or L4.

windings will be side by side, like in the tesla patent 512340.

This is so that both impulses will reach the coil.

lol
my measurement of the current of the L3 coil was DC and it was offset.
thats why it was more negative then positive.
should  have known...

still will make the new l3 coil side by side.

I just tuned my chair tonthe second harmonic.
Fun thing is I dont have to change any capacity on l2 or l3. although now the impulse isnt a perfect harmonic any more. but thats ok.

the L3 is tuned by 12nF the first resonant frequency was 950V pp
the higher longitudinal resonance is at 54.39kC so I had to increase voltage to 22.8V 1.14A dc (around 25W) to get the full 550V impulse again.

now the L3 is 2.3kV pp
 :huh:

I'm sitting on it, and the coil gets hot!
did not measure current but it is in phase as I saw that on the other setup.

with the lower resonance the L2 git hot but now it stays relatively cool. L3 is very warm.

Hej I invented a new kind of seat heater
lol.

very impressive

L2 and L4 are series resonant.
but the tuning capacitors DO NOT TUNE THE FREQUENCY

what tunes is the distance between L2 and L4...

I started with 56nF 115kC
then changed the distance (half closer) between L2 and L4 (with l3 in the middle)

frequency went up to 135kC
added 20nf om both l2 and l4.
frequency dropped 1kC!
 :huh:
measured capacity. was about right.
added another 20nf

frequency STAYED THE SAME!

when I put the coil closer together, l3 output became much brighter.
l3 is loaded with 15W bulb (tungsten)

I guess, the tuning caps need to match the longitudinal resonance. will need to make new tuning boards to dial them in easier.

also try and see which distance works best.

als make tuning board for l1/l5 mpulses.

the first resonance frequency (lowest) DOES change by the capacitors. its niw around 54kC with 96nF

the second (higher resonant frequency) is not set by the caps but by the distance.
now 135kC.

I will tune the caps and distance so both frequencies will be the same.
i need to decrease the capacity of l2 and l4

impulse also needs to be a harmonic if l3.

This is BIG

I have been wondering about tuning the LMD(longitudinal magneto dielectric) resonant frequency

Since the series capacitance doens't tune the LMD, but only works with TEM( transverse Electro magnetic)
I have to look at what does change the LMD frequency.

If I reduce the distance of the plates/coils L2 and L4 the frequnecy goes up.
But at the same time, the capacity also goes up.
Together this doesn't make sense. with TEM tuning, adding capcity lowers the frequency of resonance.
it makes sense, as increasing the capacitance (or inductance) will increase the time to charge/discharge the capacitor/inductor, and thus will lower the frequency of resonance

But now it is upside down? inverted? More capacity=less time=higher resonant frequency?

Maybe it is due to the L3 coil in between L2 and L4.
This makes the capacitor of L2 and L4, into 2 series capacitors.
And as we know with series capacitors, their values can't be add up like with parallel capacitors.
it is like the inverted resistor analogy.
series resistance adds up (like parallel capacity)
parallel resitance, needs to be inverted and add up (like series capacitance. 4 and 4 in series gives 2).
Still, series capacity raises when distance is reduces between its plates.

Now to make it fully complete, the 2 series capacitors, formed by L2/L3 and L3/L4  have another capacitor to deal with.
L3 has a parallel tuning capacitor over it.

How can we make sense of this?
L3 is one plate of a 3 plate series capacitor.
But L3 as a coil has a parallel capacitor over it...

pfew... yeah. ok
I guess this is where the difference in LMD and TEM manifests.
LMD looks at L2 L3 L4 as plates of a capacitor.
TEM looks at L2 L3 L4 as coils

The question remains, what tunes LMD? the distance is obvious, and seen in the test. but with inverse logic. more capacity from closer plates, give higher frequency LMD resonance.
maybe... it is not the distance, as we know from TEM.

MAybe... it is the VOLUME. closer plates= less volume=higher frequency.
That can make sense.
Then also the plate surface area comes to mind, as it is infuencing the volume between the plates.

Eric Dollard, said in one of his 1988 borderland videos, with LMD the greater the distance, the higher the Q.
Q makes it very frequency precise. But Q also is the amplification factor.
This ties in to the volume. more amplification as eric said, with more distance.
More volume, is more LMD

Eric also said the tesla extra coil works best with 1:1 dimension of height and width.
I wonder if L3 would also work without being a pancake coil. if L3 was a bifilar solenoid, and L2 L4 pancake coils.
It would look like a spool.  or, with the L2/L4 coils inside L3...
this is not for now.

what amazed me most, is that L3 stays tuned with the same capacity parallel over it.

How can that be?

TEM and LMD are different frequencies but L3 gives maximum voltage rise (and power) on BOTH frequencies.

this can only me when the speed of the resonant waves differ! Longitudinal is faster, thus charges the L3 cap faster, and thus has a higher frequency.

What does this mean for tuning?
series resonant tuning(tem) to the LMD frequency (higher) demands a smaller series capacitor
OR more distance between l2 l4.  (or both)

but what happens when the tem and lmd frequencies are equal?
How can both waves which have differnt speeds vibrate in the same space?

the tem dielectric moves side ways dragging along the aether creating the transverse magnetic field (vortex)
while doing so,

the longitudinal dielectric field moves longitudinal alomg the axis of the faraday tubes (and close loop upon them selfs to form the magneto dielectric field which is in phase).

can both act at the same time?
Yes I think so. side ways motion while also moving longitudinaly faraday tubes.

and the magnetic vortex? well that is only there by itself, as the longitudinal magnetic field is in phase with the longitudinal dielectric field. WRONG
NOPE
I know from measurements before, that the voltages of L3 and L2/l4 are out of phase, while the current of L3 and l2/l4 are in phase. so it is a single magnetic vortex, with both longitudinal and transverse components. Hmm I need to picture that better.....

Goal is to tune the LMD and TEM to the same frequency.
practically how to do this?

LMD is set by distance. so I can vary it.
TEM is set by series tuning cap. which I am making switch boards for. (also for l1 l5 impulse duration).

TEM gives magnetic induction, so the coils need to be close enough for mutual inductance (magnetic coupling)

LMD is dielectric induction (capacitive induction) closer coupling brings the lmd frequency up.

If I change the series cap (tem) than I will also need to retune L3. this is important to realize.

What happens with the lmd frequency, when I change L3 capacity?
I haven't tested this yet. but it will give a good clue. 
We'll see soon enough
It would be nice, if a smaller L3 cap Lowers the LMD and Raises the TEM frequency.

I tried tuning the chair, but the chair does change both TEM  and LMD frequency

I have had the Idea for a while,
to make two chair systems.

Then I would have 2 L3's and you could sit between them. The L3's could be extended with plates for capacity coupling to the body

one system could be TEM tuned
the other LMD tuned.

This tuning could also be done with a single L3 If I could not overlap the LMD TEM to one frequency.
L4/L5 would be TEM
while L1/L2 would be LMD

TEM giving transverse magnetic induction
LMD giving longitudinal dielectric induction

I made 4 more tuning capacitor boards.
I already had one, that I will use for L3.

2 new large ones for L2 and L4 to tune series resonance frequency
10x1nF and 5x 5nF
10x 100pF still need to be added (ordered in)

and two small ones for L1 and L5, to tune impulse duration, 10x100pF

the LMD has a higher frequency, and requires a bit more voltage for the impulses to become maximal.
besides that the L1 producing this impulse
and the L2 series resonant recieving the impulse, now are not harmonic related anymore, which increases the current draw from the supply.

So when comparing TEM and LMD results, the L1 needs to be retuned by parallel capacity, to harmonicly fit L2 again.

this changes the duration of the impulse and therefore also the voltage.

This makes it complex to make a fair comparison.

@@@@@@@

Also, coupling needs to be done not only as mutual inductance but also as mutual capacitance (pancake coil acts as capacitor plate).

the looseness must be understood.
Are there even more resonant frequencies when the coupling is tight?

at what distance do the 2 frequencies (lmd tem) become one? Or do they stay distanced by period differences?

Capacity and inductance for Tem and lmd seem to be different. giving 2 sets of both.

this needs to be understood deeper.
TEM coupling must be different then LMD coupling.

TEM=magnetic coupling?
LMD=DIELEctric coupling?

I jave been Playing with my chair.
tuning it.
learned from it.
 
still need to look into the magnetic field amplification of L2, and see what influence the L1 impulse duration has on it

also the Idea keeps popping up of having the series resonant L4 and L2 on the OUTSIDE of the 5 coil setup. with L1 and L5 facing L3. I doubt it will give results but I have to see it, before I can let go.

Tuning the chair was different then I expected.
I assumed the L3 (sitting on coil) was max voltage at the around 1200V or so I got when it was parallel tuned with 12nF.
L2 tuned with something like 85nF
resonant frequency 75kC (LMD second higher resonant frequency).
negative impulse at negative maximum of L2 sine.

I started reducing L3, expecting the voltage to drop. but it didn't.
The resonant frequency when higher and higher, and the voltage went higher and higher.

So I added 25nf to L2 making it 110nF.
that dropped the frequency... with 1 kC.
 :shocked:
The TMD frequency is mostly set by L3 capacity.

I ended up at 8nF L3 and 110nF L2 around 65kC resonant.
I gave L1 430pF for a 1.112uS duration
-550V impulse.

L2 was only 190V pp(without measuring impulse)
L3 was 3000V pp
 :cool:

the caps of l3 are rated 700V ac... so hmmm yeah.
I made a cap bank with 2x 16nF parallel in series, making 8nF 1400V ac
that's still 1600V above limit...
but these Wima caps (fkp1 2000V dc) are good, and LMD resonance is different than regular 50/60 C ac.

The caps get warm, but not hot.

L3 also gets warm, very pleasant ;)

I tuned the impulse to be the 7th or 8th harmonic of L2, it dropped the power consumption a bit. but very little.
I need around 1.04A dc and 24.7V dc to get a 550V (max for irfp460 mosfet) impulse.

The energy is excellent when I sit on it. I never use it longer than 20 Minutes per day. I still feel my body being energized with very pleasant energy. soft, and vibrant.

I have a electric field meter. it bleeps and blinks a red led, a cheap thing from china.
If I sit on the chair, and some one points it at me, it starts bleeping at around half a meter.
very funny.
with TEM tuned, its only a few centimeters (2 inch) but the voltage also is much lower.

LMD voltage also is 180 degrees out of phase between L2 and L3.

Current I have to look into, but not with the chair. I will leave it as it is now. I like the feeling it gives.

playing with the 5 coil setup.

picture shows blue ans orange top and bottom coils voltage (200v per div)

center yellow is middle L3 coil output voltage sine

green us the L3 current.
Note the impulses show up on the current, but not on the voltage of L3.

Why isnt that a current? Could I fix that by adding more capacity to the l1 and l5 coils, making the impulses longer in duration?

I already noticed the L2 current grows, when the impulse is prolonged.

As the impulse is a rapid change in voltage it represents current, so prolanging the current could work?

this setup is loaded with a 15W lamp
coils are 15mm distanced.
frequency is 88.65kC

voltage is 180 degrees out of phase.
I expected current to be in phase. but it isn't.
L2/L4 are series resonant, so current is 90 degrees separated from voltage.

but L3 in the center of l2 and l4 has current and voltage in phase (power)
this current is again 90 degrees shifted from the current in L2/l4 (or 270 degrees)

How can that be? how can these magnetic fields be present at different times, when the occupy the same space? but still 90 degrees separated?

if I would have to guess... L2 and L4 are TEM current magnetic fields
L3 is LMD current magnetic field.
both are measured as current, but very different in behavior.
For instance L3 current is in phase with L3 voltage. Hence conformation of my ring toroid donut field. Faraday loops closed upon themselves.

I need a smaller L3 coil, so the ring vortex will fit between L4 and L2.
L3 is way to big.

can make the same size coil again as l2
but I will make a 4mm2 coil, that is made side by side like in the patent 512340

this will make it the right size I hope. (equal copper mass will give less length)

I have been wondering about my L3 output coil. It is parallel tuned, and I put the load OUTSIDE of the resonant L-C
this way most of the energy stays in the LC and only little is presented to the load.
(left picture)

on the right picture the load is inside the parallel resonant system. making part of the full energy.

load can be a full bridge rectified to dc cap/load system.
the huge resistance should dampen the resonance, but that is TEM law.

The LMD seems to work differently as the classic hairpin circuit shows. a short cut while the lamp burns bright

I still need to do a few more tests, but after that, this part of my research will come to a conclusion.

The conclusion is:
A impulsed series resonant primary, will induce a LMD resonance in a secondary.

Next part of my research will be:
Amplification of the L3 LMD resonance, by the L4 Tesla Extra coil.
The extra coil will have no tuning. it will have very little capacity and inductance, and therefor it will resonate at a much higher frequency than the LMD L3 coil parallel tuned coil, that resonates at the L2 series resonant frequency.

The L4 will be a higher harmonic of the L3 LMD frequency.
due to L3 having current and voltage in phase, the L4 will also have current and voltage in phase. (assumption needs to be tested).
By having less capacity and inductance, the frequency is higher, but also the LMD current and voltage of L4 will be higher, giving amplification.

Basically this is a nested ring vortex. the shap of these ringvortices might determine the amplification, so coil size (diameter) will also be looked at.

I will step away from the dual primary setup, and only use the negative impulse primary. (maybe compare it with a positive primary).

So it will be a stack of 4 coils.
L1 and L2 close coupled, as before, with high side switched L1
L3 loose coupled to L2.
L4 coupled to L3 (probably tight, need to research).

First I will make a 4mm2 diameter coil, with 6,580m speaker wire, which gives equal mass to L3 L2 and L1. 
this coil will first be tested as a L3, but probably will give no results, than It will start as the L4 coil, the  Tesla Extra coil.
I will make a new topic for this.

look at Jerdee what he says in the comment section.

https://youtu.be/wIH_CdLTaIM

now imagine the right ball is a tesla extra coil.
and the left tesla coil is in LMD mode.

Fascinating. this is one of the few video's in a long time that really inspire me.

another gem showing the ideal distance for coupling

https://youtu.be/zMKs9VXmlOA

found this in the 1919 true wireless article of Tesla. It shows the same circuit I use (solid state).
Left is a auto oscilating relais, right is the primary in series with the capacitor (bottom) these are series resonant.
inductive spike from relais enters series resonant primary,  secondary is left out, sits inside primary.

Tesla's 1897 lecture explaines the same device.

As can be seen the device can also be driven by AC.
This opened my eyes!

L1 can produce both polarity impulses, alternating, when AC is used to power the circuit, instead of DC.

small changes would need to be made, the ac would best be switched on it's maximums when a sine ac is used.

pulsed AC also is a possibility.

Finally! this is the trick I have been thinking of. Thanks Telsa!