Looks like the wood beading that is used to hold the edge of the seat padding.
But gentlemen, let us put aside cries of fakery for a bit. We can start a separate thread to discuss the many ways these things could be faked.
I'm more interested in a critical analysis of the devices, witholding my disbelief for a bit until absolute proof of fakery can be established.
Now regarding EM's statement about a runaway condition:
The input power is used to drive a high voltage power supply (push pull config driving the TV high voltage coil) and it goes right to the spark gap. Let's ask the question, what would a higher input voltage accomplish? Well, the voltage would build up faster and the spark gap will trigger at a FASTER FREQUENCY.
So a higher input voltage increases the spark gap firing frequency. But is that a problem? Not really, because the spark gap is just a tool to excite the resonant coil (main big coil) to oscillate, and its frequency is not controlled by the spark gap firing frequency. Moreover, the regulation mechanism is in the frequency of the spark gap firing. As we know from Tesla coil operation, each time the spark gap fires energy is transferred to the secondary, but there is an optimum frequency of the spark gap triggering frequency and the resonant frequency of the Tesla coil, and its the harmonic relation, i.e. the coils resonant frequency has to be a higher harmonic of the spark gap triggering frequency, and then the energy is added in phase and builds up faster, assuming the coil is not heavily loaded, but if it is heavily loaded, as in this case, I guess it doesn't matter so much. Undecided
Consider that there is a sweet spot frequency that is ideal to create the voltage / current mixing in the air core transformer. Going above the sweet spot frequency would result in less energy output, so the system loop would self regulate somewhat.
Yes this would be unlike normal transformer action. We are not talking normal transformer action. The output air core is all wrong, being another step up transformer 3 turns to 80 turns, a huge impedance mismatch, and the wrong way to light a bulb, so either something very interesting is going on or there are hidden wires from the mains. Also the two 80 turn secondaries are in phase and would result in a null to the iron core step down transformer. The only voltage that should appear into the iron core iss from the resonant C2, L4 combo.
Lack of excitement on the part of the video poster can also mean that he wants to keep a low key and stay under the radar, yet disseminate to those who are sharp enough to "get it".
I have traced out all the wires in the "Ikako" video, they agree with schematic _00002.jpg. I have not been able to detect any auxilliary mains inputexcept for the "ground clip lead". We would still need one more wire coming from somewhere to the other winding that feeds the iron core. Can anyone see if that wire exists?
As I have said before, the long red twisted pair is also suspect, it appears to be completely on the table, however there is a possibility that it is later connected to a power supply or battery under the table, and the presenter cut that segment out. But even this would be unable to light the lamp because of the aforementioned severe impedance mismatch. We would expect a step down transformer after the spark gap, but L2 and L3 feed the lamp directly.
Let us do a rigorous analysis before claiming fake. Deductive reasoning would have us take away everything that cannot be and see what we are left with.
We can also employ inductive reasoning after this.
"Secrecy, secret societies and secret groups have always been repugnant to a free and open society"......John F Kennedy