Dr Ronald Stiffler SEC technology

[Slider2732]

Nick - If the PSEC running 50 LED's was the 3 tuned coils and outdoors Ground, then I think we're all learning how to do such things. It's gradual, along the way learning tricks and tips. At some point someone is going to walk in with a PSEC 2 ?!


Congrats Rusty !
THAT is exactly what's needed as a circuit for anyone to try. It has the right output frequency, is tunable and could switch a fast enough MOSFET for the 20V.
By contrast, I have the 'Hyper Complex Oscillator Exciter' running now. A weirded out Colpitts running at 13.7MHz. It can be tuned up and down from that figure with the addition or subtraction of wire on the L1, but it's nothing like as readily usable as a ferrite choke.
The big difference is that instead of the usual tank with 2 caps, I only have 1 cap and no tank. It was running at about 6MHz and getting a bit warped on the sinewave, until I inadvertently knocked the other cap off the board..breadboard by the way, not a good idea but allowed fast swapping of components.
The cap of a regular Colpitt's tank section that is connected to Vcc is now not even there.
The scope produced a much cleaner 12MHz wave, so I removed another turn and there it was, 13.7MHz. Adding just about 1mm of wire then brought it to 13.6MHz and it goes lower with more wire.

Pic of the thing and a scope shot:

[Lidmotor]

  Nick and Slider you bring up some very good questions.  I don't think Dr. Stiffler is going to help us much now. I think that we are on our own.  As far as this latest effort to replicate his 'Loop' experiments I think this is possible if one has the proper equipment.  He has never claimed that these are OU events but we make the poor assumption that they are. 
  I found this 2008 paper he wrote (with lots of pics) on electrolysis using a SEC 15-3.  There are some spectrum screen shots showing the spikes.  Besides 13.6 MHZ there is another one a 10.6 MHz.  http://www.tuks.nl/Mirror/Dr_Stiffler/SECElectrolysis.htm.html

   Slider ---You are right there sitting at that frequency in a perfect sine wave.  You should be able to replicate the Doc's exact experiment.  If not then the question is --why?

---Rusty

[gyulasun]

Hi Lidmotor,

I think your test approaches that of Dr Stiffler in that you excite a LED capacitively by an RF field and it is able to emit light when at the same time you close its circuit pins with the two diodes.

I would suggest one thing if I may: wrap up say two (instead of the one) such white LEDs into the Alu foil or stripe (whatever you use) and connect their pins in series +-+- to add up their forward voltages and then connect the two diodes to them properly too. Perhaps the two LEDs would be able to light up too, no need to change the 9V supply to the oscillator.

If you do not have info on the ferrite rod RF performance what frequency it was manufactured for then you may lose resonant power in the coil. It is very convenient to tune the coil with it for sure. Perhaps a second, smaller air core coil coupled to the main coil could tune out the setup without the ferrite core. Just a thought.

Later,
Gyula

[Slider2732]

Have posted a quick video, showing the weird Colpitt's running, the circuit diagram and the scope showing the frequency and waveform.
Also, a Captret type of method of lighting an LED on an AV plug from the circuit.

https://www.youtube.com/watch?v=jxcyTwj6YEw
(2min 54sec)

[gyulasun]

Hi Slider,

Okay on the oscillator, finally you have it, it looks like a grounded base circuit with feedback between collector and emitter, and the tuning capacitor of L1 is C2 (this gives the feedback at the same time too) via C3.  So you still have a parallel tank,  L1 C2, the parallel connection comes about via C3, then via the emitter point and via the 5 V supply, AC wise.
Stability comes from the relatively high value of C2, 0.3 nF for resonating L1 at around 13-14 MHz. Generally such feedback capacitor needs to be less than 15 - 22 pF value between emitter and collector, this high value explains why the other cap is not needed and why the frequency changes so much for a small amount of wire removal in L1.
I do not think you would need to change anything in this oscillator, maybe the DC operational point of the transistor could be checked by varying R2 by using a 10 kOhm trimmer potmeter and watch the output on the scope, switch on and off the supply voltage to see how safely it starts up etc. A very fine tuning in frequency may be had by placing say 3-12 pF trimmer cap across the coil (or across the emitter resistor...).  Perhaps you need to remove a half turn still if you wish to use that small value trimmer cap for fine tuning.

Does the big coil you drive with the oscillator via the single wire resonates at the oscillator frequency? It could be checked by placing the scope probe near to that coil to pick up the waves capacitively and see voltage maximum as the oscillator is fine tuned.
Thanks for mentioning me in the previous video, it is fine.   

Gyula