Dr Ronald Stiffler SEC technology

[gyulasun]

Hi Itsu,

To check the correct tuning of the toroidal tank, you could use say a 2-3 turn loose coupling coil wound on the toroid to monitor the amplitude on the oscilloscope when tuning the trimmer capacitor for maximum, this way you can remove the probe self capacitance from the tank and the tuning can be correct also for the collector-emitter waveform test.

I suspect when the 5 kOhm trimmer pot has a certain value other than full zero Ohm, the voltage drop across it changes hence the transistor matching to the tank (operational point) also changes when the loading effect of L3 appears at the collector as you tune L3 to resonance, this may cause what you find.  You may wish to use say only 5 - 7 V supply instead of the 12 V battery for a test to see whether this strange behavior develops then  (no 5 kOhm or just short circuit it).

Regarding the brigthness getting less when you tune L3 to 13.56 MHz from its own frequency of 15 MHz may indicate the ferrite is already a bit lossy at that frequency? (unless you know its specifications but this is minor issue at present)

Thanks for your kindness.

Gyula

[erfandl]

erfandl and All-----I was able to get this 'Crystal Circuit Exciter' to stay running at 20 volts (the voltage Dr. Stiffler used on his signal generator experiments).  The led array I am using came on super bright.  At that brightness be careful about looking directly at it.  I saw spots after doing this experiment.  Here is the short video of this thing at 20v.  The camera dimmed the light appearance down.  It is much brighter than it appears here.


https://www.youtube.com/watch?v=vW4RqHaZa-Q

--Lidmotor

PS---Slider I just ordered one of those voltage AND amperage meters off EBay.  We need to know the wattage or this experiment is somewhat meaningless.  The field 'excitation' messes with the electronic meters though and I really don't trust them.  Measuring the voltage drop across a resistor is a better way.  I will say this ---- That little MPSA06 didn't blow up producing a huge amount of light.  Interesting.

thanks lidmotor.OK I using an plastic part removed from LED light to protecting eyes

[conradelektro]

All----I finally got my cheap function generator in the mail and got it to do a true replication of Dr. Stiffler's experiment.  The
Wiper Coil' I made was critical in getting this to work at 13MHz.  This effect does work at other frequencies depending on what coil you choose.

https://www.youtube.com/watch?v=GCR3HoYeuCA

----Lidmotor

As I understand, the claim of Dr. Stiffler is that at 13,65 MHz some energy is sucked from the environment.

Looking at Lidmotors function generator test I make the following calculation:

A function generator usually is able to give a 2 Watt signal (10 Vpp through a 50 Ohm load --> 0.2 Ampere --> 2 Watt).

Lidmotor uses "an open circuit load" at which a function generator usually allows 20 Vpp. But also with an "open circuit load" it will not provide more than 2 Watt.

The calculated 2 Watt seem to be about right to produce the demonstrated LED brightness in Lidmotor's video.

One will have to look at the specs of Lidmotor's function generator to make a better calculation (look at the "amplitude characteristics" in the manual).

With an oscilloscope one could measure the true rms Voltage over a 50 Ohm resistor in series with the function generator output and also the phase angle, which would allow a calculation of the power fed to the coil. But will it work with a 50 Ohm resistor between the function generator output and the coil? If it does work one knows at least an upper bound of the energy going into the coil, which would be 2 Watt (or 4 Watt if one believes that the function generator can provide 4 Watt at 20 Vpp with an open circuit load). One could increase the series resistor to a 100 Ohm or even 1 K Ohm in order to arrive at lower upper bounds.

Greetings, Conrad

[antimony]

Have someone looked into Stifflers "spatial resonant frequency" and how that can play into better ing performance?

[gyulasun]

Dear Conrad,

Would like to notice that 10 Vpp has an RMS value of 10/2.82 = 3.54 V and this dissipates  P=3.54²/50= 0.25 W in a 50 Ohm resistor.   Your calculation: (10 Vpp through a 50 Ohm load --> 0.2 Ampere --> 2 Watt)
would be correct if you wrote or used 10 V RMS and not 10 Vpp, ok?  AND this calculation is valid for a single 50 Ohm resistor across which there is 3.54 Vrms voltage, ok?  For s generator case, see this:

Regarding the function generator, it surely has a 50 Ohm internal resistance across which the specified max 20 Vpp appears BUT this is an unloaded case. And notice that 20 Vpp has about  7 V RMS value.  If someone connects a 50 Ohm resistor across this generator output, the 20 Vpp becomes 10 Vpp only, hence 3.54 V RMS of course and dissipation in the attached 50 Ohm is 3.54² V/50=12.53/50 = 0.25 W  (and 0.25 W is dissipated in the internal resistance of the generator too). 

If a 50 Ohm generator has 20 V RMS across its output (i.e. 56.4 Vpp) and you load it down with 50 Ohm resistor, the dissipation in this resistor will be 2 W.  This is because the 20 V RMS becomes 10 V RMS across the output hence across the resistor you attached   (10²V/50 = 2 W).

I agree with the rest of your post.

Gyula