Dr Ronald Stiffler SEC technology

[mikrovolt]

As mentioned yesterday, i build myself a SEC 18-x, i think, as that was what was seen as an exciter in the Doc
his latest now removed video.

I tried severall transistors (i do not have the required MPSA06), but out of a MPSA18, a 2N2222a and a 2SC4027
this last one performs the best.

This SEC 18-x oscillates around 7mhz with a single L3 coil, but when attaching the 2th L3 coil with the 100 Ohm
resistor we see an old frequency pop up on the scope with the probe just laying near by; the 23MHz signal.
Not a nice sine wave, but its there.

Input 12.15V @ 44.8mA  (0.54W)

Output 18.5V rms @ 16mA rms (0.3W) (ledstrip)

The SA shows the 21Mhz signal as strongest, see screenshot. 

will do some further tests with this setup.

Itsu

I can tell you are reading the sec 18 documentation carefully.
The use of ferrite beads and the design of the board having least back plane reduces parasitics.
I have found similar spurs pop up like that in other multi stage oscillators. It shows on simulation also.
Possibly stray inductance, the difference in sec 18 is the amplitude is larger. ( a sec amplifed product )
I began noticing spurs 2010 when I added MMIC amps on probes for 32dB, it was like they grew out of the grass.
I agree with the parameters and tables designed  c1 c1b can be set 7 Mhz, good observation.
My impression that the design follows the applications that continue from sec 15 taking advantage of those spurs.

[itsu]

uV,   thanks for the info.



I received my MPSA06 transistors, so now the SEC 18 is as closely replicated as possible.

L1 is a radial choke and measures 9uH
L2 (sewing bobbin) is measured to be 8.2uH
L3 is according to specs, and measures 26.7uH.

C1 is a 100pF trimmer cap set half way (50pF) with a fixed 22pF across it totaling 72pF.

According to the SEC 18 documentation PDF from here: 
https://overunity.com/17249/dr-ronald-stiffler-sec-technology/dlattach/attach/165487/

it shows on page 15 that with these values we should oscillate (resonate) at 6.550Mhz, see picture,
and my SEC 18 oscillates at 6.397Mhz, so very close, see screenshot (Yellow trace is collector MPSA06 referenced
to ground).

But the signal at the output of the L3 coil (probe laying next to L3) is not that nice, see the blue signal on the screenshot.
It seems to me that the L3 coil is not "matched" to the SEC 18 oscillation frequency.

This is no that hard to understand as it seems that the "Spatial Resonant Frequency" as Dr. Stiffler calls it
is much higher, around 16Mhz as shown in his old video here:
https://www.youtube.com/watch?v=6FOq7-WsL5c

When i measure my L3 coils (26.6uH each) that way, they show around 24.8Mhz (SA and scope method).

So i wonder if i need to try for a better match between SEC 18 exciter and L3 coil somehow (like another trimmer cap in series).

By the way, the signals in the screenshot are taken while the SEC 18 is driving 12 leds in series via an Av-plug.

Regards Itsu

[mikrovolt]

Itsu, nice  that might just be Ron Stiffler's work (surface area of coil along with resonance as a wild guess by reactance proportions )
plugging in values  on the following link is an effort to equalize  tall and short wave to extract again at 19.96 sec/loop stage 2.
possibly increasing shorter wave by inserting another coil 2.875 uH along with original 22.6 uH might improve waveform.
Values used on calculator page listed below:
26.64 uH  and 22.1 pF  reactance of 1097 Ohms Z
2.875 uH and 22.1 pF reactance of     361 Ohms Z
12.4 turns
http://crystalradio.net/professorcoyle/professorcoylecyl.shtml

[itsu]

uv, 

thanks for the link, i will play with this calculator.
I am not sure the reactance will be accurate on the L3 coil as its a single ended coil.


Itsu

[PositronFlow]

Please forgive the intrusion,but as i am new here,i was wondering if some one could point me in the right direction.

I am seeking topics/and/or discussions related to the displacement of electrons via static magnetic fields through P/N junctions.

Also seeking topics/and/or discussions on ferromagnetic induction via accelerated mass.


Thank you in advance.


Christie.