Dr Ronald Stiffler SEC technology

[AlienGrey]

Hi AG,
If your coil has a self resonance at 1.2 MHz, then a 60 kHz narrow pulse can excite it with the 20th harmonic.  All I meant to vary the frequency of the NE555 timer, if it cannot go higher than 60 kHz, then it can go below 60 kHz, just to verify for yourself that the coil works or does not work at its resonant frequency, driven by a sub harmonic pulse... 

And what has 8 Hz got to do with this all, I wonder?

every Tesla coil i make, once i connect or have an earth near by if I divide the frequency by 8 it always divides equally no remainder, isn't it the Schumann resonant frequency and i appear to get more output with the earth. Wired stuff!

[gyulasun]

Hi AG,
I agree it is a weird stuff.   The Schumann resonance changes day by day, it is not always 7.83 Hz  or  8 Hz  or 11 Hz etc.
There is a site where it is shown logged:https://www.disclosurenews.it/en/schumann-resonance-today-update/   

It is sure more tests are needed. 

every Tesla coil i make, once i connect or have an earth near by if I divide the frequency by 8 it always divides equally no remainder, isn't it the Schumann resonant frequency and i appear to get more output with the earth. Wired stuff!

[Slider2732]

Nick - No problem at all !
There is a world of difference between the orange type soft glow and then white light, which these are and then the dazzling break the eyeballs light.
Step by step is the way, learning why some stuff doesn't work as well as what does work and why.

Gyula - Nice site link. I'd heard of it being different nowadays and of the fluctuations. That site is good for understanding it more, with the graphs shown.
Am quite glad I never developed an OU machine based on the Schumann Resonance lol, that's a few hours saved huh. Get the thing to a point of self running, after years and years of study and builds, only for the frequency to move off and do its own thing.

[gyulasun]

Hi Slider,
I am afraid it would take many, many hours to develop a device that would convert or sniff energy from Schumann resonance if it is possible...     But then you would not need to tear your hair out due to the fluctuating frequencies because then (once you know the how to) you could surely build several such devices for the changing frequencies or even to track them... so you should not be left without OU. 
Gyula

[itsu]

Received my newly ordered transistors and put them in one after the other.
I am not using the virtual ground nor the 5K trimmer pot in the supply line (so 12.5V from a battery).

The 2SD1815S first shows some nice output after retuning.
The 100K trimmer pot across the x-tal was set to 43K for max output.
The transistor temperature went up to 42°C (107°F).
Output signal 20Vpp, collector signal 29Vpp

The 2SC4027S next shows some even better output after retuning.
The 100K trimmer pot across the x-tal was now set to 27.5K for max. output
The transistor temperature went up to 36°C (97°F).
Output signal 28Vpp, collector signal 30Vpp, see screenshot 1

So it seems the 2SC4027 is the better performer.
0-180MHz spectrum with this last transistor, see screenshot 2.
When detuning the variable cap both max plus or max minus, the circuit flips into 3th harmonics operation.

Video here:  https://www.youtube.com/watch?v=d55uXINoDjc

Itsu