Big Joule Theif

[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

[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

[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]

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!

[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

[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!

[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

[jeanna]

20 watt- not 13watt!!

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]

Hi Jeanna

I have lit a 14w CFL My toroid has 3T 13T and 350T-400T (tried to count afterward, lol). I used one AAA battery, no caps. My CFL wasn't very bright though.

Mark

Nice, Mark!
The voltage in the AAA is the same, so in my experience the only difference between the AAA and the D is the length of time it runs.
That said... IF there is some kind of amps draw directly from the battery that is needed to start it up, then you will have an easier time with the AA or bigger capacity battery.
In fact, I wonder about this, because the 100uF cap at the battery was needed.
As soon as I added that the light went on instantly, as I said with no coaxing.

The reason for a cap in parallel with the base resistor is to save on amps draw because there is a kind of' repeater action' that works when this is done right. (It is a tank circuit right there.).
I think lidmotor's rheostat is doing the same thing and I plan to play with it today.

I have also lit 6 of the unmodified led bulbs also or 114 single leds.

I am glad to hear this. I was a bit unwilling to pop mine with this much voltage.
thanks for that info.
Those leds are strawhats, and they are made to have a much wider angle than the others. I like them.

They are 2 watts and suppose to be equivalent to 60 watt bulbs.

oooo cool Please let us know.

How much noise are you getting from the toroid? Mine is a little irritating.

Yes, I know.
(I have many cfl's in lamps which make the same noise.)

I only have this problem when trying to light a fluoro because the frequency goes down when the voltage goes up, and we can hear it when it is below 20k.
My first one was at 5khz, and very loud
the little 1.5 inch was at 12.5khz, but it could only light a 4" tube.
This one is 2.27khz.
Maybe this is the real reason to use a wooden box?

@all,
Last night, I forgot to read the scope when the system was set.
I only checked with the scope initially. When I saw over 500v when the base resistor was at 1k ohm,I smiled, and put away the scope. But the volts are much higher than 500v.
So, here are the readings and the whole story.

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

I will report what happens with the lidmotor rheostat.

jeanna

[Lidmotor]

Happy Thanksgiving

@Jeanna
Yeah!! That looks good. Have a happy Thanksgiving.

@Kick-Bak
I built a different kind of coil yesterday with your idea in mind of using a straight design with a ferrite rod as the core. It didn't do what I wanted it to (produce high enough voltage to light a fluorescent) but it did give me a tunable inductor. I will be working more with that idea. I made a video and posted it over at Jonny's SEC/JT thread because I had it driving a Dr. Stiffler SEC tower with 27 leds. The inductor design was similar to one used in my version of a SEC 15-3 circuit. Mutten over at the SEC thead came up with the design months ago.

Cheers,

Lidmotor

[Mark]

Hi Jeanna

I have lit a 14w CFL My toroid has 3T 13T and 350T-400T (tried to count afterward, lol). I used one AAA battery, no caps. My CFL wasn't very bright though. I have also lit 6 of the unmodified led bulbs also or 114 single leds.

How much noise are you getting from the toroid? Mine is a little irritating.

I also bought some different led bulbs that Sams just got in. They are 2 watts and suppose to be equivalent to 60 watt bulbs.

Mark

[jeanna]

jeanna' light

Well...
It took a bit, but this is my first success with a cfl. 13w

535v or higher.
tip3055
1.2vAA
2T,10T>300T...lost count you know
2.6khz

the secondary wire is 26awg that I get from gobrushless.

After I lit the 18 inch tube, I was playing around with a 48 inch tube which made 6 inches of lively sparks inside the tube, but only at both ends.
When I was doing that, I remembered the capacitor trick.
Now, It didn't work yet with the 48 inch tube, but on a lark I tried this 13w cfl again and it turned right on without any need for coaxing it! (2 caps in series 47uF each at the battery.)

jeanna's light.

I will make a case of some kind tomorrow, I think.
(I had 10 days straight of thanksgiving and eating with friends in CA last year which makes up for a solo video day this year!)

I will let you know when it is finished, of course.

jeanna

[Lidmotor]

Kick-Bak's Light

@Kick-Bak
I like what you did. It means that we can do this without using a toroid core. They have a bad habit of making a high pitch whine that is quite annoying and they are hard to wind.
You can probably just add more voltage to your setup and that halo light will come on full bright.
Iam very curious what you electrician friend will say about this circuit. It is really just a self-oscillating transformer circuit. It is the simplicity and the light producing aspect that got me interested. The way that you came up with makes it even simpler though. We should start hunting for that air core coil somewhere. I'm thinking that maybe there is a 'solenoid' coil out there that might work. The ferrite rods are easy to get.

Lidmotor

[kick-bak]

@ Tectalabyss

Just looked at your diagram. Kv ? lol
I wouldn't know where to start in regards to caps with that
sort of circuit. I may just leave it to a more experienced tinkerer to test
out.
Thanks

Kick-bak

[kick-bak]

@ Tectalabyss

Thanks. I did try a darlington pair using a BC548 and the 2N3055 but i didn't see
much difference. Will look into the Voltage doubler and I do have a few large voltage caps here to play with.
I did try to get some measurements with my dmm but I couldn't even get it
to show amp draw. The thing just keeps flashing numbers at me. Setting the
1k pot on low I can test the MW coil ac output while slowly turning the pot on
but the dmm starts flashing on and off around the 400v mark. Its max reading is
750vac. I also thru in a RS206 800v bridge rectifier to try and get a dc reading
but the same thing occurs.( dmm flashing ). Max dc reading is 1000v
I may try puting in a few diodes on the low side to see if that calms this thing down.
Bugger it! I'll just take it to work and get our electrician to take some measurements.
He's anti FE so i'm sure i'm in for a long and in depth lecture on how it works
which is what i got when i mentioned some of John Bedini's machines.


Kick-bak