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Author Topic: Dr Ronald Stiffler SEC technology  (Read 277046 times)

Slider2732

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Re: Dr Ronald Stiffler SEC technology
« Reply #195 on: June 13, 2018, 06:28:16 PM »
Gyula - have just had a look at those schems again and will study them more.
There is a possibly simplified method for the sinewave and, as luck would have it, the thinking was verified this morning in a roundabout way.
Julian Illett uploaded a video of building a 1kHz sinewave circuit kit. Onboard, was a filament bulb !
The Bedini SSG used to make use of an 'ear of wheat' bulb and yesterday I found a 1970's era front panel for some kind of CB gear, with half a dozen of those bulbs on it. Looks like they were pre-LED used for the same illuminations.
The idea now being, to get the oscillator signal amplified by any means and then have the bulb in series with a likely MOSFET at the output.
That raises questions about interference, but it's worthwhile to experiment with due to the method.
 
It looks like i'll continue on with the 2 pin oscillator circuit until the AD9850 arrives....other signal sources are either spendy to replace or not locked in as well as the crystals. I can blow this up and it would take about 20 minutes to make another.

Oh, and, with a 4.5MHz crystal and an L3 on the output, if I move a hand over the coil the signal jumps to 13.3MHz !
It suddenly just flips upward to 3x what it should be. A very handy flip to a possibly more usable frequency.

NickZ

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Re: Dr Ronald Stiffler SEC technology
« Reply #196 on: June 13, 2018, 08:10:16 PM »
   There are plenty of 13MHz simple oscillator circuits on the internet. You might find some that would suit your needs. I pull one out of a TV motherboard, might be the right frequency.  Not sure about that yet,  but it looks the same as the ones pictured on the internet.


gyulasun

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Re: Dr Ronald Stiffler SEC technology
« Reply #197 on: June 13, 2018, 09:23:38 PM »
...
Oh, and, with a 4.5MHz crystal and an L3 on the output, if I move a hand over the coil the signal jumps to 13.3MHz !
It suddenly just flips upward to 3x what it should be. A very handy flip to a possibly more usable frequency.
Hi Slider,

Crystals in general are willing to oscillate at their odd harmonic numbers so your 4.5 MHz crystal will do so at 3 x 4.5 = 13.5 MHz.

[There are so called overtone crystals manufactured specifically for oscillating at an overtone mode (at an odd harmonic) of a base frequency and one need to insure a tuned circuit (in most cases) to force this oscillation mode to happen. ]

See this circuit from the same link you already gave:
http://jaunty-electronics.com/blog/2012/08/overtone-crystal-oscillator/  just remove the collector resistor and put an LC circuit there instead. Use not higher than 1 uH coil, it needs roughly a 140 pF tuning capacitor.

If you attempt to drive the gate of a MOSFET from the collector via a coupling cap, then the input CGS (being in the order of some nF) of the MOSFET will detune the tank significantly unless you compensate for this input cap properly by a matching network, or simply use a buffer amplifier to separate the collector from the gate.

Gyula

gyulasun

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Re: Dr Ronald Stiffler SEC technology
« Reply #198 on: June 13, 2018, 09:30:10 PM »
Hi Nick,
Is the frequency of the crystal you pulled out from the TV  written on the metal case? 
For NTSC colour tv types usually 3.58 MHz, for PAL systems 4.43 MHz is used but you may find crystals for different frequencies of course if you pull out the ones used for clocking the microprocessor.

Gyula

Lidmotor

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13.5 MHz sinewave
« Reply #199 on: June 14, 2018, 01:27:34 AM »
I was able to reproduce the signal that Dr. Stiffler used but not at the needed higher voltage  I just used that 13MHz crystal oscillator that I have.  I got it to light up a few leds but it will not light up a large array.  The voltage was not enough.  Perhaps there is a way to amplify this signal using a secondary circuit.  It seems to me all you would have to do is run this signal through a cap into the base of a transistor (like a 2N3055), apply the other needed components, and Bob's your uncle.  We only need 24volts and less than 200mA.
  Here is the video of the messy setup:  https://www.youtube.com/watch?v=3pMk19OzF6A

--Lidmotor

Slider2732

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Re: Dr Ronald Stiffler SEC technology
« Reply #200 on: June 14, 2018, 01:56:00 AM »
I thought that too and have only done preliminary testing, but am unsure if wires have to be kept really short and etc.
Every MOSFET here that i'm looking up is too slow, it seems.
Mention has been made of the IRF510, which unfortunately I don't have. Have got 610, 640 and others and they appear to come in as a total function time of around 90ns at best.
13.6MHz requires 70ns. Again, am unsure if i'm looking at those times correctly...it would be easier if they'd put the whole switching time, rather than the rise and fall times.
Maybe a transistor is a better choice, most run at a far higher speed than MOSFETs.
Plus it would be a 1 stage solution, rather than using a transistor first, to feed the MOSFET at its Gate voltage.
Can only plug stuff in and see.
Your scope that's now running may help to verify the transistor idea too.

Lidmotor

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Transistor solution
« Reply #201 on: June 14, 2018, 03:18:49 AM »
Slider--- I thought about just trying an MPSA06 or even a 2N2222 at 12v and see what happens. Just keep the current down under 100 Ma and see what happens.  Glue a penny on top like you have suggested on the Slayer exciters.  The worst that can happen is blue smoke and a bad smell for awhile. If the temp isn't too bad gradually up voltage to 20v.  You can double up the transistor also. 

---Lidmotor

SkyWatcher123

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Re: Dr Ronald Stiffler SEC technology
« Reply #202 on: June 14, 2018, 06:19:57 AM »
Hi all, I was inspired by lidmotor to make a version of his latest slayer exciter light.
Thanks for sharing lidmotor.

Used ferrite tube core, one layer 30awg. magnet wire over paper tube, which is over the core.
Not sure of primary turns, made it previously, 24awg. magnet iwre, at least 12 turns, not wound tight.
Using 5 volt usb power supply.
pn424r PNP high voltage transistor, same size as 2n2222.
High speed, higher amp diode off base of transistor.
Two 1n4148 diodes off one end of 30awg. wire, into led bulb, any other diodes, meaning larger, cuased higher amp draw and less light output.
100 Kohm base resistor.
Feit ribbon led bulb, 3.6 watt, 40 watt equivalent, warm white, with circuitry removed.
Picture is blooming a bit, though it is fairly bright for 1/2 watt input, burns into eyes if you look at it, which i don't suggest.

5.06 volts, 110 milliamp input or .55 watts.
The transistor is only warm, not hot.
Will try and tweak for more brightness and efficiency.
peace love light :)

Lidmotor

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Replication
« Reply #203 on: June 14, 2018, 08:38:36 AM »
Great news Skywatcher!  I was hoping someone else would try a Slayer Exciter on one of these new led bulbs.  It seems that you came to the same conclusion as I did about it.  It is a big bang for the buck light.  That is a lot of light for 1/2 a watt.  The simplicity of a Slayer Exciter is hard to beat.
  What I really like about these group projects is that we usually find out something new along the way.  People learn from each other, improve a design, and share it.   
   Tell us more about that bulb.  Is the circuit board separate?  Is the bulb easy to take apart? Where did you get it?  Cost?
 
  Many Thanks.   ---Lidmotor

AlienGrey

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erfandl

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Re: Dr Ronald Stiffler SEC technology
« Reply #205 on: June 14, 2018, 12:10:49 PM »
Hi all, I was inspired by lidmotor to make a version of his latest slayer exciter light.
Thanks for sharing lidmotor.

Used ferrite tube core, one layer 30awg. magnet wire over paper tube, which is over the core.
Not sure of primary turns, made it previously, 24awg. magnet iwre, at least 12 turns, not wound tight.
Using 5 volt usb power supply.
pn424r PNP high voltage transistor, same size as 2n2222.
High speed, higher amp diode off base of transistor.
Two 1n4148 diodes off one end of 30awg. wire, into led bulb, any other diodes, meaning larger, cuased higher amp draw and less light output.
100 Kohm base resistor.
Feit ribbon led bulb, 3.6 watt, 40 watt equivalent, warm white, with circuitry removed.
Picture is blooming a bit, though it is fairly bright for 1/2 watt input, burns into eyes if you look at it, which i don't suggest.

5.06 volts, 110 milliamp input or .55 watts.
The transistor is only warm, not hot.
Will try and tweak for more brightness and efficiency.
peace love light :)
Hi. can you provide schematic of your circuit ?

NickZ

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Re: Dr Ronald Stiffler SEC technology
« Reply #206 on: June 14, 2018, 04:41:03 PM »
   Some interesting comment from Mikrovolt, at energetic forum, a little while ago.

  "yes we got resonance with a signal generator and an AV plug.
 The doctor uses an aluminum two plate capacitor after the SG. ( Signal Gen in series resonance mode )
 
 After that resonance the methods change. (self resonance of the coil)
 Then we need to turn the Signal Generator down because we are tuning
 for AV current peak self resonance of a series and not a voltage peak. (having different phase)
 Some of you have low power output SG that cannot light an led. (need an adjustable output stage)
 Next using a spec analyzer he found the current peak when adding the third coil.
 
 I went on with this experiment following instructions exactly and found psec worked
 with almost no signal at all proving to myself at least that this type of
 current resonance in wireless multi-coil systems found without forced oscillation has merit.
 The oscilloscope conventional approach would be misleading. The setup needs near field to SA.
 The current derived by this type of harmonic series is done first.
 The frequency is dependent on that series. The resonance can vary
 but the optimum tuning seen on the spectrum analyzer has a signature". 
                                                                                     end quote. 
 
   I (NickZ), am having a hard time getting my reflector LED bulb to light properly, as the Doc is showing. Using just a couple of 4148s, and the loop at the end. It seams to need a clip lead (even a short one), on the end of the diodes to light up. Still working on it... But, I know that only indicates that something is not right. Maybe the frequency is off, but I had it lighting up by itself pretty well with just a short wire lead off of the diode ends. A 3 inch piece of wire. Seams to work as an antenna/ground of sorts.
But, without the proper metal backed LED board, exactly the same as the Dos has, this set up may not work, as it needs to work.   
  Anyways, that is what I/we have to work on, getting that proper interaction, first. The right frequency or it's harmonics are needed. But, the only way we are going to know if this is all worth pursuing, or not, is to build it right, like Doc is showing.    Dr. Stiffler will have to progress to eventually NOT needing to use the SG as an input source, otherwise this is just not a practical project for most people to follow up on. 
    Remember: The bulb has to go out when you touch it, and not to get brighter. Or it ain't working...

Slider2732

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Re: Dr Ronald Stiffler SEC technology
« Reply #207 on: June 14, 2018, 08:48:47 PM »
Am going to try a 9W from Lowe's later.
The AD9850 should arrive today and then a lot should hopefully change...well, once i've bolted on the Arduino and screen.
Still need to make something to ramp up the voltage.

uV kindly replied on a vid of mine too. I know he knows his stuff and there are now several people of experience giving help in such ways...all very kind and certainly helping things to progress.


Have just seen the Doc's new video: https://www.youtube.com/watch?v=wCBE6eeMyjw
He has SEC 18-x boards available again. Now that is an interesting idea and a good route for his funding. He wishes to replace his current probe that blew up. I hope there is interest, he gains the amount of funds and can buy the replacement.
What was the price of the original boards ?

SkyWatcher123

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Re: Dr Ronald Stiffler SEC technology
« Reply #208 on: June 14, 2018, 08:56:46 PM »
Hi all, Hi lidmotor, it is one of those filament style led bulbs from Feit.
Though I can't seem to find the exact version i bought awhile ago, a 2 pack of 40 watt equivalent.
It is printed on the bulb, 3.6 watt input at 450 lumens, this link is similar, https://www.homedepot.com/p/Feit-Electric-40-Watt-Equivalent-A15-Dimmable-Filament-LED-90-CRI-Clear-Glass-Light-Bulb-Soft-White-2-Pack-BPA1540927CAFIL-2-RP/304112237
,though it uses more power.
I would say, most of these filament style will work well, since I think they use a higher voltage without the circuitry.
It's not too difficult to remove the small circuit board from bottom of these bulbs, though i may have used a heat gun to loosen the glue holding base to glass bulb.
Hi erfandl, here is the circuit drawing.
peace love light :)

Edit: just checked the 24awg, magnet wire primary turns, 19 turns, wrapped together tight, though is not tight on top of other coil.
 Going to make a tighter wind primary with double the turns, 40 turns and compare, then can remove turns and compare also.
 
« Last Edit: June 15, 2018, 03:26:10 AM by SkyWatcher123 »

gyulasun

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Re: Dr Ronald Stiffler SEC technology
« Reply #209 on: June 14, 2018, 11:27:43 PM »
Hi SkyWatcher,
Nice results.  Would like to ask if you place a puffer cap across the bulb with the correct polarity to smooth the DC from the AV plug, then how the brightness may change?  Maybe it changes at the expense of input power,  i.e. say  both increases?  Use at least a 160V DC rated electrolytic, say 47 uF. 

You may wish to correct the transistor symbol drawing: the emitter and the collector ought to be flipped.
Thanks,Gyula
EDIT, the emitter and the collector are at good place now, just make the arrow point towards the base as with pnp types  8)