I'm also surprised by the extreme high impedance of the coils. last reading was 65322 ohm peak, and 39288 ohm minimum around the phase change.

But these values might be off, as the phase is always negative somehow

using the epoxied coils, L1 and L2 open ended,
L3 series connected with the double lenght L4.
s11 measurement series fed to  outside rim of L3

1: lowest point, 342kc/s
2: highest point 366kc/s

I had to redo this test as I noticed L1 and L2 were accidently series connected (which raised the frequency)

I now added the series capcitor to L2 and connected it to source.
I tested with 117 nf 45nf and 5nF which all gave the same result.
L3/L4 still no tuning cap.

The impedance is much lower now, and the phase shift is much larger.
not sure how to interpret this yet

hooked up L1 and L2 to the PCB and gave L2 45nF in series. still no cap parallel to L3
making the C2 series tuning can of L2 bigger, very slightly lowered the res frequency.
still S11 series fed from l3 outside rim. with L4 series connected to L3 and no cap

so the impulse should be tuned to the half wave period of 359 kc/s =1393ns
that is very long in duration, and will not give a high voltage impulse. thus only small amount of displacement currents

So this says to me, I better tune the impulse to the L3 coil alone, as it behaves as the plate that receives the displacement from the impulse.

with these epoxied coils, the L1 is very fast, so I might still need to tune it. I dont understand how fast the impulse should be.

no L4 (placed away) just S11 on L3 without cap.
L1 and L2 fully connected with 45nf in series of L2

max impedance of L3 at 6: 1456 kc/s this is where the impulse should tune to, thus a 343ns impulse
min imp of L3 at 7: 1239 kc/s

now i tested L3 again, with L1 and L2 fully connected like before,
but now with L4 placed on top. not connected, open ended.

frequency is much higher, but also at 5 (546kc ) the L4 shows up.
at 7 L3 is now at 2Mc/s so that would be a 248ns impulse?

I am starting to think I really need to tune the impulse to the L4 again.
but I can only now for sure by testing if the ground connection produces current. And for that the probe is ineffective.
instead I should use a pure resistive load.
I bought resistive wire for that. so I will need to construct someting non inductive and non capacitive and see if it gets hot

s11 of L4, series fed from outside rim of L4
L3 has no cap, same setup as before.

So on 5, L4 has high impedance at 545kc/s

I connected the VNA to both the outside rims of L3 and L4

I gave L3 7nF in parallel, and grounded the outside rim.
L4 placed on top but not connected to L3,
s11 on L4 from outside rim
5 gives highest impedance at 683kc/s

when I increase L3 to 17nf then the L4 drops to 669kc/s (highest impedance)

but if I make L3 9nF, it drops to to 678kc

So lets look at L3 again, with the cap connected (7nf)

7nf on L3, s11 on L3  L4 on top non connected (still L1 L2  pcb connected as before)

changing the capacity, barely changes the highest impedance frequency on L3.
5= 479kc/s  well below the L4 of 683

L4 now series connected to L3
s11 on L3 series fed from outside rim with 7nF parallel to L3 (series to L4)

I amplified the scales to see the L4 at 6

5= 479kc/s
7=681 (where L4 sat before at 683)
6= 656 kc/s where L4 now barely appears to sit, so just slightly lower.

This is the full setup as It should be

changing the size of the parallel capacitor of L3 doesnt seem to change much, the frequency barely changes between 7ns 37 nf or 0nf.

I think this is, partly to the low signal levels of the vna, barely being able to work with the parallel cap impedance (high)

But also, because L2 primary is not resonant , just connected. when resonant it interacts with L3.

So I wonder if I can now tune L2 for max current (and impulse)
So L3 can be magneticly induced into resonance, while L4 is using the impulse for induction

Since I now use the impulse to match the coil without capacity added, I thought, hmm lets tune my ascension seat again.
So I measured L3 without a cap, and compared it to the impulse and the resonant frequency.
To my surprise it already was decently tuned.

5 periods of L3 measured 9.560 us duration
\and 1/5 of L3 was 104.k kc/s
so the impulse should be 956ns
while the 7th sub harmonic was at 74.71kc/s

I measured a 982ns impulse, very closely matching to what was needed,
and a L2/L3 freqeuncy of 76.4 kc/s 
So very closely matched, and taking account of the measurement error, I will keep the seat at this setting.
very cool to see.

While tuning, I also again noticed, I could tune lowerer, whereby the impulse of L2 was not on the bottom of L2, but sitting on top of L2 max voltage.
But this gave a smaller impulse and resonant voltage on L2, demanding for higher voltage levels of the power supply.
not what I want. 

I reconnected the whole system again, and powered it up with 7nf in parallel to L3.
L4 produced 5kv pp at 179.6kc/s

I removed the ground from the power supply, and only used the ground at the system.
I probed it beneath the setup, where there was less interference. and I cant deny, there was more current when I probed the ground current, then there was when probing the air near the cable.

I didnt tune to the harmonics, so I should be able to get more from it.
The L4 produced a perfect sine wave, no ripples, I did this already at lower freqeuncies but I didnt get a proper impulse there (ripple on L2)

That was enough for today.

s11 L3 parallel cap 0nF L1 L2 connected to pcb with 45nf
L4 is placed away.

so parallel cap is connected to L3, but with 0nF

series fed  from outside rim

lowest impedance at 1102kc/s 556.47 ohm
highest impedance at 1258kc/s 5314.08 ohm

now added 10x 100pF=1nF in parallel to L3, same setup as before
since the coil has small amount of capacity, this 1nF addition brings a big frequency shift

min=3=515kc/s 2277 ohm
max=4=536kc/s 5795 ohm

note how the primary shows up around 340kc/s

I now added 1 more nf, making it a total of 2nF parallel to L3
the frequency barely drops anymore. I tried adding larger amounts of capacity up to 50nF but the freqeuncies barely change anymore. only small amounts of capacity make the changes. Is this due to it being loose coupled to L2, which sets the main frequency?

min=3=472kc/s 3093ohm
max=4=493 kc/s 4932 ohm

freshly calibrated for new sweep and frequency settings
L4 completely uncoupled, with parallel cap, and 0nF
So the parallel cap has 0 nF setting
the larger coil has more inductance and capacity, resulting in a lower resonant frequency, but also more wire resistance.
L4 is made from 0.75mm2 20m double the length of the L3 which is made of 1.5mm2

I prefer using 1.5mm2 wire at least

min=359kc/s 16244 ohm
max=374kc/s 19409 ohm

I dont trust the impedance and phase values, but the frequencies I trust

And here we loose definition.
still calibrated the same, with sweep, datapoint=1024 time=16.38sec time per point=16ms

min=3 =154kc/s 38kohm
min=4=157kc/s 44k ohm

L4 removed. L3 has parallel tuning, cap, but 0nF setting.
frequency is 120.8kc/s for max amplitude of L3 (orange), with single impulse on L2 (yellow)

zoomed in for impulse and L3 measurement

scr51:
2,5 periods= 2.296 uS devided by 5=459.2ns half wave
L3= 1088.9kc/s

scr52:
impulse half wave is 420.8ns very nearly matching L3 (38.4ns separated=8.4%)

probably not able to tune the impulse better to L3. Nice!

parallel cap connected but still 0nf
L4 outside rim series connected to L3 inside rim
measured at series connection (same frequency at L4 inside rim, but there is much higher amplitude)

scr54:
L3(L4) period is 1628ns L3+L4 combined frequency is 614.251kc/s, half period= 814ns
impulse is 440ns

so the series combined coils, are much slower as expected

tuned to 4th sub harmonic of the L3 L4 combined frequency of 614kc/s which is
f=153.56kc/s
impulse is now faster at 379.6 ns (it was 440) and around -1800V
power used= 1.32A x2 x32.3V =61.5W

scr56 shows voltage (orange) and current (green) of L3 Measured at cap/inside rim
scr57 shows L4 voltage and current (orange and green).
Notice the current (green) phase shift between L3 and L4

L2 tuned with 41nF series cap
L3 tuned with 11nF parallel cap (is also series with L4)

it's time for a big capacitor to ground the inside rim of the L4 extra coil.

if it is to be series resonant (with the L3 parallel tuning cap c3) then the other end should be stable/grounded.

the impulse should then be tuned to the L4 extra coil.

L3 resonance, and L4 resonance then add up at the c3 capacitor plate.

for the negative impulse to work with the L4, it should then be reversed/flipped over. because L4 polarity is different when the other side is made resonant.

then L4 can become truly series resonant with C3.

because now, I only have high voltage resonance at the wrong end of L4 (not where the cap is) it should be reversed so the highvoltage is at the c3 side (where it will add up to L3 parallel resonance)

tesla used a large dome on top of his extra coil(l4) to ground into. it had a large surface area, to be able to push back agains.

the parallel tuning capacitor(c3) of the secondary(l3)is relatively small compared to the top load capacity(c4) . which made it possible to get the extra coil(l4) in series resonant with it.

this is what someone asked me a few days ago, how to ground in the air.

and this was also asked way back by eric dollard, who said Tesla was able to ground in the air.

this makes A LOT of sense.

since I don't use ridiculous high voltages I dont need a air cap, but can ground using a large regular capacitor.

and this can also be found in the kapernadze circuits (reproductions)

maybe a separate ground should be used for the large cap, VS the secondary ground

secondary is induced by magnetic field, amplified by impulse.

extra coil is induced by secondary and impulse,
since polarity is now reversed the l4 extra coil might need to flip over, and be reversed conneced to L3.
so outside rim of l4 to c4
inside rim of L3 series connected with inside rim of L4.

The L4 is essentially a low impedance antenna when L3 is parallel resonant.  Increase the impedance or try L4 on the Low side