Joule Thief

[guruji]

Hi big m in ok can you please clarify about my question please?
I used slayer schematic and ideas for JT are there more modern one's regarding windings and schematic?
Any help please?
Thanks

guruji said: Your question above raises a question of its own in my mind:

@all
Do the new LCD or Plasma TVs had high voltage transformers like the picture tube sets?
(I'll have the chance in the future to acquire transformers from TVs and microwave ovens left on the streets by previous owners.)

--Lee

[Yucca]

i did something similar long ago, but i wound the coils directly on the transistor body. fast and small.

What frequency did you achieve?

[innovation_station]

so for the winding configuration ... this is how i see it for now ...

AND ITS WILD ...  TRUELY WILD  I HAVE SEEN NOTHING LIKE IT EVER B4 ..

I WILL BE DESCRIBEING AND SHOWING A DRAWING OF THE COIL CONFIG.. 

YOU ALL WILL FIND THIS TO BE IMPRESSIVE ...

IST!

USEING THE CORE  SHOWEN IN MY PICTURES I FOUND 5 TURN PRIMARY TO WORK JUST PERFECTLLY ..  AS PER WINDING CONFIG.. SHOWEN .. NOW 37 WIRES TOTAL 36 ARE POWERED SUPPLYS AND RETURN TRIGGERS FOR LOAD MODE SPLIT IN 2 GROUPS FIRST GROUP OF 13 THE ODD WIRE LEFT ON THE PRIMARY DRIVEING SIDE OF THIS UNIT IS YOUR TRIGGER WIRE ... IT CONNECTS TO THE OTHER TRIGGER ON THE OTHER CORE ..

THEN THE SECOND GROUP OF WIRES IS 24 WIRES .. THIS IS LOAD MODE ...

WHAT ALSO HAPPINS HERE IS THE REASON FOR 24 WIRES THE COILS ARE RAN AT THERE NATURAL RUNNING FREQ .. IN LOAD MODE..  AND ALLOWED TO COLOIDE VIA OVERLAP FIREING .. 

HOW WILD DO YOU ALL WANT IT TO GET .. ?

THIS WILL COVER MOST OF THE IMEDIATE CORE ..

IM NOT DONE YET ... LOL

NOW THAT WE UNDERSTAND THE DRIVEING MOTOR ...  WE ARE ALSO GOING TO SPIRAL THE SPINN OF THE COIL MOTOR THIS MEANS .....

HUMMMMM...  LOL

I WILL ROTATE MY 12 FIREINGCOILS 2 PHASES CHUGG AND LOAD AROUND THE RING ... SO AS I GET THE EFFECT OF ROTATION IN WIREING ASWELL ... SO AS THEY FIRE

1 2 3 4 5 6 7 8 9 10 11 12    THEY TWIST ABOUT THE RING ...
1 2 3 4 5 1 2 3 4  5  1  2

THIS IS A VERRY UNIQUE DEVICE ..

IST

[WilbyInebriated]

What frequency did you achieve?

unknown, my crappy pda scope doesn't measure that high.

[jeanna]

HI YA BRO...

I THINK SLAYER007 HAS THE FASTEST!!



...
...

@ J   I WOULD LOVE TO WIND AND USE THE JEANNA AND MK DESIGN .. 

BUT I THINK FOR SOME REASON THE TURNS MAY NEED TO MATCH THE TURNS OF THE CORE IN MY CASE ...  5 TURNS AROUND MY TOROIDE ON INPUT IM THINKING CENTERTAPPED 5 TURN EACH WAY ...  ST WAS DOING THIS WITH SPECTULAR RESAULTS  SOME TIME AGO ... USEING THE DB107'S... 

Oh good.
I would love to see this, ist.

I only used the numbers that I did because I wanted to end up with a total of between 42 and 48.
And, that was only because I have a bunch that I have made before in that range.
I wanted a real comparison, so almost everything had to be the same.
I even managed to use the same transistor as one other.

You can wind this with any number of total turns, but I made this be in 1/6, 2/6, 3/6 amounts in the different directions.

So start with the right number of final turns you want.
Divide by 6.

That number is your first number of turns to wind up (to the left of center)

Then twice that number (or the 2/6 number) and wind down the first side and cross over and continue to the end of the second side.

So far this is exactly like a MK1.

The final part is my part.
On the final segment you will wind the rest of the turns (the 3/6 number) and you will do that by clumping 3 turns carefully snuggled down between all the coils on ONLY the second side.

So,
In your case
5 up to the left
10 to the right going past the center
15 going back down the second side to the center again.

----
This is very easy to wind.
It is probably important that you already know the best operating number and base resistance of this core. But, perhaps it will be really good no matter what... I dunno.
I only made that first one last night!


=====
@yucca,

Did you see the cone I made?
I posted it on youtube a week ago. I made a cone of 2 wires wound together = bifilar, and connected them in a center tap (end of 1 to beginning of the other) and
added a toroid that had already been wound as a joule thief primary bifilar.
This toroid I connected in the usual JT way.
I placed the toroid core on the point of the cone and wrapped the non centertapped ends of the cone 2 times each around the core.
This produced an astonishing 17volts with a beautiful spiral swirling wave form.
Oh and it had a frequency of 500khz-660khz. (I could not get any closer on my scope therefore the very wide range)

The video is only 2 1/2 minutes.

After making that I realized that what I had made was a 4T secondary, plus a conical inductor which was in series to the secondary.

Your description reminds me of this thing. Have a look.

http://www.youtube.com/watch?v=84jr0GlYvYA

thank you,

jeanna