Dr Ronald Stiffler SEC technology

[itsu]

I just replicated Dr. Stiffler's latest experiment with the 'Loop'.  It works.
  I know what people are going to say to explain what is happening but I recommend that those with the right equipment replicate this simple experiment and see it first hand.  It is pretty interesting.

https://www.youtube.com/watch?v=hdWBj8Lyb1g

--Lidmotor

I tried to replicate using 15 x 1N4148 (i believe Dr. Stiffler used 15 of them) diodes in a ring and 12 Leds
driven by my FG 20Vpp using one of my L3 coils, but there is no output to be seen.

Only when i go back to 2 leds there is some glow in them around 9.3MHz.

Not sure what is going wrong here.


Itsu

[gyulasun]

Thanks. and whats happening when I use supercapacitor 2.7 volt @ 500 farad? is it dangerous and make
destroying the cap? Thanks.

Well, I suggest testing it but keep a DC voltmeter across the supercap to see first how fast
the diode loop is able to charge it?  And when the 2.6 - 2.7 V DC level is reached then finish
charging unless you want to destroy it...

This suggestion is also valid for your 1000 uF, 63 V capacitor: no need for the Zener diode
protection directly across the capacitor if you always keep a DC voltmeter across it and you
continuously watch the voltage while testing.
If you have 5 pieces of 12 V Zener diodes, then they limit DC voltage across your 63 V cap at
roughly 60 V and bleed away any extra beyond that.
This will not be a loss when your looping is tested because the moment you connect the DC converter
across the capacitor, the 60V level will go down for sure. Notice that the converter I gave a link
to ebay finishes working under 30 V DC input to it, this can be a drawback.

Notice: I am not responsible for any damage your exploding capacitors may cause !! Be careful !!

[gyulasun]

Hi Itsu,
Very likely the RF voltage level the coil produces is not high enough.  I think the 120-130 V DC level the Doc had in his capacitor is an indication how high the RF field might be at the top of his L3 coil with the cliplead attached to it.We do not know his generator output voltage level, maybe he cranked it up to 25-30V peak to drive his L3.
Maybe you could check the received DC level with a puffer cap also, without any LEDs.  The cap is charged to the peak values
of the fields available around the cliplead / coupling wire I suppose.
Gyula

[iQuest]

Hi Gyula:
   Appreciate the additional wave reflection info.  I had previously read some of the Tesla coil analytical papers and articles by the Corum brothers, the link you posted was a good refresher and is the best
one to start with, some of the others are very technical and can be heavy on the math.  You made a very important point and I would like to clarify a term that you used.  You stated "...in case of a coil when
it is fed continuously with input energy at the quarter wave resonant frequency (not the case for a quasi arbitrary single wave traveling in the simulation), the resonance not only doubles but enhances the
amplitude manifold at the open end (voltage amplification)."  I may not understand the context of your use of the word 'manifold' (mathematics term) but I think it's most likely a typo which you meant to be
'manyfold' (by many times).
   None the less, I understand the very important point that you are making which relates to this application.  When an L3 coil with an open end is fed continuously with input energy at quarter wave resonant
frequency a very high voltage magnification can be achieved at the open end, much more than double.  The higher the coil Q and VSWR the higher the Vmax at the coil open end and the lower the Vpp that
would be needed from the input source FG or crystal oscillator to conduct experiments.  In his recent standing wave video Dr. Stiffler demonstrated a method which brightly lit up the LEDs on the Cree bulb
board with FG set to 10Vpp (2:02):  https://www.youtube.com/watch?v=On_ynVaUGHM
   In addition to coil Q, TinselKoala also makes an important point about the need to practice good RF circuit layout design.  During his earlier years Dr. Stiffler stated that he stopped using breadboards for
RF circuits to avoid problems caused by parasitic capacitance and inductance.  Although breadboards are very convenient this may be contributing to some of the problems being experienced by some
experimenters at these higher frequencies and/or may explain some of the variation in results.  Much more going on here that can be learned from which would be missed if not studied in more depth,
thanks again to you and the others for your help to learn and understand it better.

"It can be shown that the ultimate limit in voltage rise on the coil is set by the degree of coherence of the up and back resonator waves." -Corum brothers

[Lidmotor]

Gyula---Dr. Stiffler's post shows up at the top as a 'highlighted post'.  He made the post 11 hours ago.  The first part deals with RF and antennas.  He later makes a statement about Close, Near, and Far field influence on the transmitter.  The last statement is about the ring being driven by voltage and a tiny amount of current and that the ring itself is producing the current.  It is that last statement that is really the important part of the post.  Here is a link to my video again and his post should show up: https://www.youtube.com/watch?v=hdWBj8Lyb1g&lc=UgxZ6ealjfWzGYOVaL14AaABAg

Itsu---I started out with just 6 diodes and one LED.  I just twisted them together to see if it worked.  I then soldered up a 1/2 Stiffler Ring of 7 diodes and 6 LEDs.  That is what is in my video.  I think Doc stated that his generator put out 25v peak to peak and mine only puts out 20v.  The clip lead thing I had trouble with and that is why I used a solid wire with two alligator clips on it.  The whole setup interrelates in resonance.  You have to play with it.  That is why I made the statement about the frequency.  This does work really well with my crystal oscillator also.

All---I tried Doc's latest experiment with the cap but I did it in a simpler and safer way.  I just attached a 35v / 100uf cap across the 6 LEDs I am using in my 7 diode Ring.  It charges up to about 15v fast and the LEDs come on bright and basically holds the voltage there.  By watching how long it takes for the LED array to come on you can see how fast the cap charges and get an idea of current output..  I tried hooking up one of my simple reed switch pulse motors to it but have not had any luck yet getting that to work.  I don't think that this is putting out much current.  Perhaps with a bigger ring you get more.

--Lidmotor