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[v8karlo]

Void
Look at the thick copper pipe which drives his Tesla coils. If it not the resonant Fo it is for sure a harmonic of it.

ps. Thanks for your answer above about the 50 ohm resistor. 

The picture you showed?


It seems that is not connected as indicated on schematic.


One end is loose. It does not form bucking coil.

[justawatt]

Void
Look at the thick copper pipe which drives his Tesla coils. If it not the resonant Fo it is for sure a harmonic of it.

ps. Thanks for your answer above about the 50 ohm resistor. 

jeg

Well said this is not a tesla coil,the driver is working in 50hz range,so harmonics is the key,this device is not about resonance

[justawatt]

The picture you showed?


It seems that is not connected as indicated on schematic.


One end is loose. It does not form bucking coil.

That photo was before connecting. The load,look closely ,what about your FE devices. You mentioned you made,care to share some photos and video of those  device

[v8karlo]

If I made working device, I would not be here?


I dont have it.
Maybe someone else does?

[Jeg]

jeg

Well said this is not a tesla coil,the driver is working in 50hz range,so harmonics is the key,this device is not about resonance

Hi JustaWatt
In the contrary i believe it is a matter of resonance. But not at the fundamendal frequency.
I don't doubt that it is a driver for 50Hz. But internally he has an oscillator for high frequencies. MHz range. There is no way for inducing lower frequencies in the range of hz through a loose coupled thick copper pipe. This is Tesla driving clearly. And very probably modulated at 50Hz.