Joule Thief

[timmy1729]

Here's a drawing Xee2 redrew I penciled in a few spots where your can pick up BEMF.

The negative BEMF you can eather go back to negative or positive of the source battery for the BEMF positive.

For the positive BEMF you can do the same I like to go back to negative of the source battery.

This can allso be done with rectifiers instead of diodes.
I think with rectifiers you even get better results.

@Slayer
What size toroid and what gauge wire did you use to be able to fit 480 turns?

@All
I just got seven 48” Fluoro tubes last night along with a light fixture that looks like it holds four and it has the power module and wiring still in it… FOR FREE! And she said they were still supposed to work because they were unused. We will see.

If you want to get free stuff and help keep stuff out of landfills and you’re in the US(I don’t know about other countries) check out Freecycle on Yahoo!. People post stuff that they don’t want anymore and, rather than send it in the garbage truck to a landfill, they give it away. The rule that everyone accepts is that what you post has to be outright free. No money, no trading. I found those lights using Freecycle. I also found an old vcr, old tv’s and junk bicycles that I’m going to pick up through other people. I’m going to use the bicycle wheels to wind pancake coils to experiment with Tesla’s radiant energy ideas and wireless electricity. I’m going to try and copy the Peter Lindemann videos from Google Video. Either that or use them to make a simple lathe to wind a secondary coil for a Tesla Coil. I’m going to use the pedal and gears to make hand-crank AC generators. You can also post stuff that you want too. For those of us without money, it is the only way to get materials to use for experimentation. It’s amazing how many people would rather give stuff away for free than send it to a dump. Save the planet and get free stuff or give your junk a good home! Everybody wins 

[slayer007]

@Timmy: yes, those yellow things and the green one too are transformers.
Not sure how you hooked up your meter there, but if you fed a steady DC
into them it may well be that you didn't measure much on the output side,
as typically induction in trafos happens when the current builds or drops
and when the magnetic field builds up or collapses, but not really when a
steady current maintains a magnetic field. Generally trafos work with pulses
or alternating currents. I may be telling you stuff you already know and if so
then forget about what I said just now, I'm not trying to act smart, I'm just
trying to think along with you there on why you didn't get a reading on the secondary.

By the way, I see a couple of really nice looking ring cores there too,
should be usefull in winding your own JT coils if you're going for that

@slayer: thanks for pointing out that suggested bemf connection.
So, if I'm folowing you, you're just saying connect the positive bemf feed to either the circuit positive or the battery negative,
and connect the negative bemf feed to either the circuit negative or the battery positive
And again, not to be a smartass, but doesn't a rectifier consist of diodes?

regards,
Koen

Your right rectifers are just diodes.
But going from emitter to collector on the 3055 with a diode I get 8v using a rectifier I get 15v.
All most twice as much voltage.

As for the voltage on the 2222 theres not much there but every little bit helps.

"if I'm folowing you, you're just saying connect the positive bemf feed to either the circuit positive or the battery negative,
and connect the negative bemf feed to either the circuit negative or the battery positive "

For eather the the + or - emf you can go back to eather the battery - or battery +.

[slayer007]

@Slayer
What size toroid and what gauge wire did you use to be able to fit 480 turns?

@All
I just got seven 48” Fluoro tubes last night along with a light fixture that looks like it holds four and it has the power module and wiring still in it… FOR FREE! And she said they were still supposed to work because they were unused. We will see.

If you want to get free stuff and help keep stuff out of landfills and you’re in the US(I don’t know about other countries) check out Freecycle on Yahoo!. People post stuff that they don’t want anymore and, rather than send it in the garbage truck to a landfill, they give it away. The rule that everyone accepts is that what you post has to be outright free. No money, no trading. I found those lights using Freecycle. I also found an old vcr, old tv’s and junk bicycles that I’m going to pick up through other people. I’m going to use the bicycle wheels to wind pancake coils to experiment with Tesla’s radiant energy ideas and wireless electricity. I’m going to try and copy the Peter Lindemann videos from Google Video. Either that or use them to make a simple lathe to wind a secondary coil for a Tesla Coil. I’m going to use the pedal and gears to make hand-crank AC generators. You can also post stuff that you want too. For those of us without money, it is the only way to get materials to use for experimentation. It’s amazing how many people would rather give stuff away for free than send it to a dump. Save the planet and get free stuff or give your junk a good home! Everybody wins 

The toroid is a 2" ferrite I bought it off ebay.

The wire I used is 23ga. for both the JT and pickup coil.

Smaller wire and more windings would have been better for the pickup coil.
At least for lighting a CFL.
But I'm just using what I have around.

[nievesoliveras]

@jesus

Yes it looks like it , but usually a transformer doesn't have a saturable core but the jt dose, that is the reason i think about mag amp, they are wired the same but the core makes the difference,

Mark

Thank you @mk1 !

I made a toroid coil with an aluminum covered cable taken from a discarded computer monitor.
I wounded 16 turns of that covered wire that has a bare wire and a light blue covered wire running together and the cable is wrapped in aluminum foil and a clear plastic foil.

I connected it to the pulse motor and it run!
I put a 1.5v battery to the collector output via a diode and the battery gets charged.

That is a normal jt charger.

But the thing is that with the motor stopped the running battery does not discharge while charging  the other battery.

So the discovery is that with a covered cable like that used on computer monitor cables make the toroid coil special.

The cable number is AWM E101344 style 2990.  It has inside about 9 different cables.

Just check on it.

@ist

Yes I am following this thread!

@pirate

That light was brighter than the cfl that you lighted before!
You can do as @ist and make a light kit to sell. The plastic tube is mailed empty with a joule thief and two leds.

@ist can supply the toroids already winded. He is good at that. Also there is @mk1.

Jesus

[Goat]

@Bill
I'm stuck

I just noticed your comment about balancing the core to all the other variables,I stuck on knowing how to tune the core so to speak, any ideas.

General Jim

I got 2 green cores unwound, thought I would have had them wound by now, there was black glue substance in them, it held me up.
 

@ electricme

Take a look at the section entitled "Some tips on getting it running" on this site http://cappels.org/dproj/ledpage/leddrv.htm#Rusty_Nail_Night_Light

Bob Parrott had sent in a drawing to explain how he tweaked his JT setup to draw less amps much the same way as was shown earlier on this thread by gadgetmall.

As Pirate mentioned, there are several core materials that can be used, from an old rusty nail to air core

Regards,
Paul