Dr Ronald Stiffler SEC technology

[gyulasun]

Hi Lidmotor,

Thanks for showing the test with the new LED type you found, very good.  This test shows
that the brightness depends only on the RF voltage amplitude a "good" type LED is fed with
capacitively via its back plate from a resonant coil.  Tests done on the other forum also show
that a 'magic' frequency (like 13.5 MHz or so) is not needed, and also the Doc's CREE type LED board
has no special property for the effect.


Dear erfandl and lidmotor:

Please restrict the pixel number for your uploaded pictures to a maximum of 900 pixels horizontally because anything higher
than that like 1280 or 2592 you both uploded recently makes the thread extremely wide and difficult to read.
This is why we need scroll horizontally back and forth to be abloe to read some posts.
High vertical pixel numbers cause no problem, only the horizontal ones. You can use a simple picture editor like Windows Paint
to resize the wider than 900 pixel pictures. Unfortunately, you need to edit your post within 12 hours after posting
because forum software does not let modifying posts after the 12 hours passes.
So in the future please consider this when uploading higher resolution pictures.
Gyula

[Slider2732]

A frequency tunable exciter

A 50 turn Dr. Stiffler type L3 was made on 1/2" PVC pipe. It worked fine as a Slayer
Exciter, with a 24 turn same gauge primary. Frequency was 21MHz.
Next, 5 more turns were added and the result was a decrease to 17MHz.
Aha, so it's just like a Crystal Radio and the tuning...more turns for a lower frequency.

Using an 80 turn Dr. Stiffler like coil as the movable section and keeping the primary from
moving instead, the coil can be moved left and right to run from ~9Mhz to ~17MHz.
That also includes the 13.6MHz
I had thought that all we were doing with the primaries on Slayer type circuits, was
tuning for most efficiency and best wireless output.
Perhaps driving it at 20V is as easy as running a Chinese booster circuit in front and using
a TIP122 or 2N3055 as the Slayer transistor. This one is using a 2N3904.

Here's the vid:
https://www.youtube.com/watch?v=JNH6UMBo2LE
(3min 09sec)

Pic of the circuit:
 

[TinselKoala]

Now you can make a proper tuned-circuit receiver and do away with the single wire connection, and light your LED wirelessly.

[SkyWatcher123]

Hi all, i noticed some post directed towards me, I will read them shortly, though just wanted to share a short video showing the setup as it is now.
I raised the voltage to 16 volts for a more light output and have 4 parallelled sets of 1n4148 diodes in series as the av plug.
The input is now 21 milliamps at 15.98 volts or 336 milliwatts.
The brightness is impressive, though still bloomed a little in the video, thought a video would help reduce that, guess not.
In my many light experiments, I've yet to see this kind of light output for such a low input power.
I'm still sticking to the more copper mass primary is of benefit story.
https://youtu.be/8H_TYJFTJyo
peace love light

[Lidmotor]

TK---do you remember back about 4 years ago you did something like this and it inspire me to try it?  Here is the video of it from 2014.  I used a tunable inductor instead of the capacitor but it is the same tank circuit receiver idea.  What comes around goes around.  I still have that thing and I've been playing around with it on this project.  Here is my little creation from 2014:  https://www.youtube.com/watch?v=fOkkF4pr23s

  Here is your 2014 video that inspired me.  It is totally applicable to what we are doing here:  https://www.youtube.com/watch?v=80D92QaOcM4

---Lidmotor

PS --Thanks Gyula for the tips on posting size issue.  I will work on it when I figure out how to do it. Ha