Is this a Joule Thief, or a Tesla Hairpin Circuit?

[acmefixer1]

The FTC took Lights of America to court for false advertising, they lied about their LED lights. This BOFH will not let me post the URL so go there and click on news and search for lights of america. You'll be surprised.

[acmefixer1]

Your 1.5V AA cell is not going to burn out those LEDs (after you read that, you may believe they are already burned out!! )

The 1067V you measured with no load obviously will drop dramatically when the LEDs are connected. You can adjust the brightness by varying the JT resistor instead of wasting power with that rheostat. Look at xee2vid lo power JT videos on YT to see schematics.

[sparkfishes]

very nice , excllent narration, ( dispite the archaic names and language) does any one use rheostate now for variable resistor or potentiometer -

I belve Tesla and other used different type of lamps - NEVER LED,s and the whole point was use adjustable points along the original copper rods not fixed points as you have done ( exploring the nodes of standing waves ?)

Excellent video but , in my opinion, somewhat misses the original hair pin circuit theory . Its just a blocking oscillator

[tourbike]

can I buy one of these?

[TheNCSSR]

add secondary of a big transformer to a pot 10k linear to base of transistor and output voltage = 340V

[Magneticitist]

that is producing some amazing light from the single battery, but now that I have gained more information regarding the hairpin circuit, I have to ask you, have you considered that the spark gap may be the key element in the functionality of this circuit? it's possible air is perfect for achieving the needed frequency tuning. Maybe you could try producing a small arc and see if a bulb lights brighter closer to it. that is, if you are still interested in the circuit of course =)

[jeannacav]

@Magneticitist

Hi, I was using the joule thief circuit in the hopes that I could avoid the spark gap.

Tesla described ways to overcome the many problems of the spark gap, and never even mentioned the nasty amount of noise it makes.

I am pleased with this.

In fact, this particular joule thief is the one I would suggest replicating all around the house. The toroid is 2 1/4 inches but can be 1 inch. The type W ferrite is essential.

[Magneticitist]

@jeannacav yes it is odd about tesla, but he seemed to be able to sit and read right next to a massive screeching arc just fine! maybe he was deaf in one ear?

and thanks, i will look for this ferrite. i agree the usability of this circuit is too tempting to ignore.

[rouelibre1]

I hear you talking about a rheostat. But is that a rheostat?

A variable resistance could be used as a rheostat but not always. We could be facing a potential divider or else.

We have not seen any schematics about your device.

[jeannacav]

@rouelibre1 The rheostat is placed just at the pos side of the battery in the joule thief circuit.

It has the effect of drawing more or less from the battery and brightening or dimming the lights that are being lit from the secondary.

My videos tend to be made for the folks at the energy forums where the circuits are drawn. I have provided videos with the schematic, but I don't have a glyph for a rheostat on photoshop yet, so they are not showing that placement.

[michalchik]

So is this just a cool way of stepping up voltage or are you guys making some silly claim of it creating free energy?

[jeannacav]

@michalchik

It is basically a cool way to step up voltage AND the frequency.

Both are a result of the basic joule thief.

What I have been working on is how to extend the effects of a joule thief beyond the basic transistor.

The toroid is awash in high frequency switchbacks which cause a fast pulse AND High voltage flyback if you wrap it with another wire.

This part of the circuit is very similar to the hairpin circuit Tesla demonstrated, but in micro miniature.

[michalchik]

@jeannacav so is this more than an oscillator and transformer?

[michalchik]

what kind of bulbs were those?

[jeannacav]

@michalchik

Those are led bulbs. They have 20 leds in series and a bunch of caps and a fuse to protect the leds from grid surges. I have been getting mine from wallmart. They are made by lights of america. Maybe Home depot or lowes carry them too??

[GrowlingVocals]

smart women exist?

[teslacult]

Nice experiment, but I must disagree with you on something. When Tesla said,"disruptive discharge" he was not refering to a spark. He was actually refering to the instant discharge of a capacitor through a low resistance circuit. This abrupt capacitor discharge allows high powered pulses to be generated from a lower powered source.

[jeannacav]

Hi teslacult,

If you look at his patent drawings, there are little dots that are called d,d. those are the places from which the spark emanates at the moment of the spark I refer to. I agree people think long streamers are what he wanted. He wrote quite a lot about how to make the disruptive discharge and it IS a spark. He describes it in great detail.

I am hoping to avoid the problems he describes that are inherent with the spark, and so, I hope to get the same results with a transistor switch.

[teslacult]

The spark gap to which you are probably refering acts as a switch for the capacitor discharge. When the potential reaches a certain point on the capacitors the air between the gap ionizes and becomes highly conductive, allowing the capacitors to discharge very abruptly through the load. It is necessary to have a low resistance load so as not to slow the discharge process. I do agree that other types of switching could possibly be used, but transistors have a very limited power handling capacity.

[tectalabyss]

Way to go !! 5 stars.Thank's for sharing. Tec

[CosmicGnarler]

Maybe there has been enough changes to let that circuit be called something else other then hairpin, but its close. Apples and oranges type of thing.

I like how modular and all-together the LoA bulbs are, but nothing beats a fat sack of superbright led's from china... I can light up hundreds of LEDs but you need a fancy container for them ;-) Give and take.

Maybe what tesla was demonstrating was oscillation based power, and so is the JT, but I would say yours is more advanced.

[jeannacav]

More advanced! thank you.

I saw 2 things. One, he shows 3 different ways to experiment with this ac stuff which he was introducing. He said, these experiments show what is new about this, or something like that. The other thing I saw was that patent which is the middle of those 3 in the first pic. This was the basis for our home wiring.

While I was experimenting with the jt with 2 secondaries, the smaller secondary was this thing, and I saw that given the chance,...cont

[jeannacav]

...given the chance, the frequency would diminish when a light was added. The volts might stay the same but it seemed only when there were extra would the volts stay up. Then I saw that if I added a series inductor to the pulsing wire, the frequency would go up, and I could add another light. In our homes, the frequency cannot change so we use something else and are billed for amps.

I am working on a scaled up version now with cfl's instead of leds, so stay tuned!!

thanks for your comments.

[Lidmotor]

Excellent!! Now ---what the heck does all that mean??? That is where I am at. Why do the LoA bulbs act like they do. I still have not taken my ONE apart because I am somewhat facinated by how it lights up off the different circuits. I ordered several more different types of led bulbs off Ebay to see if that helps me understand more. I am drifting away from FLs and more towards leds everyday because of their better efficiency.

[jeannacav]

I am thrilled that the LoA bulbs are doing what they are.

Even though it is inconvenient, the fact that I cannot turn them off at the switch once they have been on, means this is another avenue for experiments. The light from them with the switch off is very weak, but OMG it is still on until the battery is drained. So, somehow, adding capacitance to the secondary on the bulb side (some way) might be a way to have perpetual oscillation from a single pulse... touch here n the light is on until???

[marthale7]

You the gal! :-) It does seem to me, that the light that has the globe top does seem brighter than the rest, i am guessing it may have a lower resitance than the others? Excellent video thanks for sharing.

[jeannacav]

I forgot to do something important yesterday. I forgot to look at the bulbs #2 and #3 without #1 to see the brightness.

Without #1 those bulbs#2 and #3 are the same brightness as each other and still appear less bright than #1.

I do think that is the bulb. They are a different "color".

According to tesla, bulb#1 IS SUPPOSED to be brighter. He used bulbs that required different voltages, so it is necessary to translate the meaning.

I have some more questions too.

thank you, mart.

[Pirate88179]

Jeanna:

Great video! My opinion is that the circuitry in the base of those lights is altering your experiment. We already know that you can light many more leds to a much brighter level with your large toroid circuit so, this is my guess as to what is happening. If you just ran those leds alone, you would most likely fry them unless you have your rheostat down. Very well done and very well explained. I don't think I will ever catch up to you.

Bill

[jeannacav]

Thanks Luc and Bill.

----

I agree, Bill.

That rheostat is so convenient.

Those leds are in series and 20 in series is very safe when using spiky volts.

And, you are right.

I do not want to try 1067v on them even 20 in series. My guess is that 300v is OK for those, but, I am really glad to have that rheostst to keep them safe.

thank you

[gotoluc]

I'm impressed Jeanna!

Excellent work

Thanks for making this video demonstration.

Luc