Big Joule Theif

[Lidmotor]

The JLJL Light?

Hi everybody,
I grabbed the wrong lightbulb yesterday.

Today I was reaching for something and I saw the 13 watt bulb I bought to take apart!!
So, what had I used?
I was rummaging looking for a 10watt, which I didn't have.
I guess I picked up a 20 watt and never checked myself.
So all those statistics and all that light came from a 20 watt cfl.
(wow, no wonder I had some trouble without the batterycaps.)

So, that is what I used --- 20wat tcfl.

OK.
today,
I reassembled this circuit with a 33ohm standard resistor at the base, and added lidmotor's RS rheostat.
This works like a charm.

jeanna

edit
here is a video
jeanna's Lidmotor's Jeanna's Light

Jeanna---That looks great. You made my day. Thanks.

Lidmotor

[Mark]

Wow Jeanna!

That is some great light output

How many turns do you have on your primaries? And do you know what kind of draw you have. I tried to get an input reading on mine but my meter acts like a choke and only read about .125 amps but I think It's more like .200.

GREAT JOB!

[jeanna]

How many turns do you have on your primaries? And do you know what kind of draw you have. I tried to get an input reading on mine but my meter acts like a choke and only read about .125 amps but I think It's more like .200.

Thanks.
The draw is about 40mA when the rheostat is at 1ohm.
I have been playing with the resistors and so this 40mA comes when the base resistor is around 68 ohm.
2T, 10T on the primaries.

I had the same problem you are talking about before. I think it is because there is sooo much extra voltage here the meter does not get in the way.
I never was able to get an amps reading when I tested a fluoro tube on my other toroid with only 240 turns. The voltage to run the tube was marginal = my assumption.

@lidmotor,
thanks!

jeanna

[morpher44]

freqy mystery

Big unknown toroid 3.38" OD
1T,10T,>300T
TIP3055
70 Ohms at base resistor
895V (!)
2.27Khz
975mH coil inductance
2.51uF coil capacitance
jeanna

So there is a mystery as to why it resonates @ 2270Hz.
If we assume capacitance of 2.51uF, that would imply
circuit inductance is around 1.958mH ... much smaller
than the 975mH of your toroid. If on the other hand we
assume 975mH, the circuit capacitance would be around
5nF. I can kinda believe the latter since coils typically have
a very small capacitance ... down in the picofarad to nanofarad
range.

I wonder if you put a 25nF cap in parallel with the coil, if the
frequency would drop to 1khz.

Congrats on your latest video/light. Excellent!

[samedsoft]

Dear morpher 44,

I would like to celebrate holy day today.. Please open your hands to GOD and wish him to clear our sins.

He gave us very good possibilities to know, discover, understand and love him via his creatures.

We owe him a lot. He asks us to come together and be one we all represent 1. When our forces united it becomes 1111.

So day is coming. Soon we will have Jesus in earth. I will know him. I will be with him. I will let you know when he reaches this soil.

GOD (ALLAH) BLESS YOU.

Nuri Temurlenk, Istanbul Turkey

[morpher44]

Soon we will have Jesus in earth. ...
GOD (ALLAH) BLESS YOU.
Nuri Temurlenk, Istanbul Turkey

@Nuri,

May I politely suggest the forum discussion area "Psychic & Paranormal"
for the place to discuss the return of Jesus. That is actually an interesting
topic and you could create a new thread there. I suspect this
audience is more tuned to the Joule Thief discussion.

Peace
-Morpher44

[jeanna]

... this
audience is more tuned to the Joule Thief discussion.

Peace
-Morpher44

Yes.
And I do not think my toroid was especially 'tuned'. It was just really powerful, not at resonance, if that is what you mean.

@All...
Speaking of tuned...

It is something I repeat and repeat. I do not understand, but I see it all the time.
In a joule thief when the volts go up the frequency goes down.

I have used this same toroid before and it has 240T and a 2N3055 instead of the TIP3055 I used yesterday.
With the 240T the voltage was 435v-450v and marginally turned on the 15w tube.
Its frequency was 5khz. [voltage lower frequency higher]

So, it is no surprise to me that this toroid which achieved 985v is resonating at 2.27khz.
The voltage was way up and the frequency was down. [voltage higher frequency lower]

This reciprocal relationship between the frequency and voltage is in my mind AS IMPORTANT to realize in a pulsed circuit, as ohm's law is in a dc circuit.

Most people simply ignore this information.
At ou, the educated and friendly ones just said I must have made a mistake and never mentioned it again.

You see it all the time... add a magnet, the frequency jumps up and the voltage drops. Kubikop made a whole video about the frequency but did not mention the voltage.

(Of course this may not work if the power source is a pulse generator which does not permit the frequency to change... right?)

On another note (a different frequency if you will ) :
Since our source for that big toroid is dry, I am going to test a few things to see what is important. Maybe a 2" toroid will be available and do the job.

I will let you all know.

jeanna

[Inquorate]

If the frequency increases, the coil may not be reaching it's maximum magnetic field, so when current is withdrawn, the voltage spike will be lower.

For every coil, there will be a certain pulse width time for a certain amplitude that saturates the coil.

So after a certain frequency is achieved, the voltage output may decline

For example; http://a7.vox.com/6a0110169c703a860d01240b7e9a77860e-pi

However I don't know if this translates to the Joule thief circuit.

[redrichie]

was looking into some Tesla research today and came to NAudins page. This is the Free Electrons Pump V.2. Ive looked at this before and didnt realize till now That this is basically the same thing as were using except on a ferrite rod and uses a spherical capacitor. Right? heres the link:
Free Electrons Pump v2.0 by Jean-Louis Naudin

[jeanna]

If the frequency increases, the coil may not be reaching it's maximum magnetic field, so when current is withdrawn, the voltage spike will be lower.

For every coil, there will be a certain pulse width time for a certain amplitude that saturates the coil.

So after a certain frequency is achieved, the voltage output may decline

For example; http://a7.vox.com/6a0110169c703a860d01240b7e9a77860e-pi

However I don't know if this translates to the Joule thief circuit.

Hi inquorate,
I was noticing the relationship I just described and one day I mentioned it.
I was hit with a bunch of comments telling me I was wrong.

Your explanation could be right.
I only know that I would be tuning the jt by turning the pot at the base of the transistor and this was very clear and very consistent.
After a couple of challenges, I checked this out by changing the number of turns on the core. Adding turns will increase the volts, and sure enough, the frequency went down.

It was recognizing this that got me working on that multiple secondaries circuit.
I learned other things and I am still at it, but for anyone working with a JT as the pulse creator circuit, this information is essential.

Tesla could over ride this because he could pulse the sparks independently from the voltage.

thank you,

jeanna

[jeanna]

CFL plus F Tube in series!

Hi everybody,
I just put my cfl light JLJL in series with a fluorescent tube. And they both lit.

I took some pix and loaded them here:

4 pics on the ou joule thief thread

The first one shows a 20w cfl plus a 7w tube.
then I used a 15w tube
then a 20w tube.

Finally I showed just the 20w tube by itself.

thank you,

jeanna

edit
I also want to add the following.
I bought a 10w cfl just like lidmotor's and it is now in the center of that big golden toroid.
I have the full range of use from the rheostat, and it looks like a real replication.
I plan to check the timing with a fresh battery.

@lidmotor,
Did you use a duracell AA straight from the store?
I am wondering if the one you used was recharged by your bedini charging circuit?

thank you,

jeanna

[Lidmotor]

The JLJL

Hi everybody,
I just put my cfl light JLJL in series with a fluorescent tube. And they both lit.

I took some pix and loaded them here:

4 pics on the ou joule thief thread

The first one shows a 20w cfl plus a 7w tube.
then I used a 15w tube
then a 20w tube.

Finally I showed just the 20w tube by itself.

thank you,

jeanna

edit
I also want to add the following.
I bought a 10w cfl just like lidmotor's and it is now in the center of that big golden toroid.
I have the full range of use from the rheostat, and it looks like a real replication.
I plan to check the timing with a fresh battery.

@lidmotor,
Did you use a duracell AA straight from the store?
I am wondering if the one you used was recharged by your bedini charging circuit?

thank you,

jeanna

@Jeanna
Your light sitting in the "Big Gold" toroid looks great. I can't wait to see the boxed version. I noticed that Pirate has a nice box now for his. These make a nice conversation piece. People ask, "What's that" and then you can rattle on for hours and bore everyone to death.
I used a fresh alkaline AA in mine. It is a Costco one (Duracell lookalike). You know ----we could make a charger out of this also by grabbing the BEMF off somewhere but then I really like the pure simplicity of this design. Maybe we should just leave it alone as a pure classic.
I have been working with Kick-Bak's idea and took apart a micro wave oven fan motor yesterday to use the coil. So far I am not getting the same results. Obviously his motor and mine were different. I can get it to light up the CFL but only if I run it at higher voltage. Your big toroid it still the winner for the most amount of light out a AA for the least amount of power. Buy the way I can't find any other source for that core. I wish that I had bought a few more before they ran out.

Cheers,

Lidmotor

[jeanna]

Thanks lidmotor,

(Ah yes, the eyes glaze over and I know if I simply stopped mid sentence that no one would notice. )

Thanks for the battery info.
You answered both my questions because I wanted to know if any bedini reconditioning was adding to the time.
And the answer is 'no, not in this case.'

We are working hard on finding more of those toroids.

The manufacturer has a few distributors.
The price will be close to what allelectronics sold them for.
I found one distributor who has a $30 minimum.
I will continue to do this and be back.
I too want this to be something everyone can make.

thank you,

jeanna

[Mark]

Hello everyone

Just wanted to let you know that I'm able to light up a 4 foot 32 watt tube with 1.2 volts. Its not very bright but it does light. I've played a little with my primary wraps but without a scope its hard to tell whats going on.

Jeanna your 20 watt cfl looks supper bright to me!

Not sure how you got it so bright, Ive tried to replicate it but yours seems so much brighter. My primary winds are with 23 awg and my secondary is 26 if it matters.

Anyways just wanted to say thanks for all your efforts and

Mark

[Mark]

Hi Jeanna

Your not going to believe this but I can light up 2 of the 32 watt tube bulbs in series with a AAA battery. Pretty dim but they both light right up.

I also put a couple of D cells in series for input and both bulbs light up pretty good.

Now here is something really cool. I can light up both bulbs with just 1 wire on each bulb! Dim but both are lit with one wire. Used my hands to make the series connection and they lit up bright again.

Mark