Big Joule Theif

[jeanna]

Thanks Slayer007,
Thanks for doing that.

It makes a lot of sense, because raising the frequency will raise the sound above the hearing threshold.

For a long time I have held the thought that frequency of spikes operates in a pulsed circuit the same way amps do in a steady voltage circuit.
Increase of brightness with increase of frequency is a good piece of additional evidence for this.

(Of course I must also remember to add: when you increase the frequency in a joule thief circuit,you will also lower the volts. In a lot of these circuits that use spikes, we have excess voltage so it usually won't hurt the light.)

So, the trick is to raise the frequency to the highest level possible that allows the voltage to remain high enough to turn on and keep on the light.

thank you so much for doing and showing this... wow

---
@CosmicFarmer,
Hey thanks for the pretty wreath and ornament.
As an ornament it really looks great.

OK so, now add a battery and a bunch o' leds and put it on the top for the great star!

Very nice,

jeanna

[jeanna]

Toroids: J type notsogood, W type terrific

Hi everybody,
I finished my test on the J type material I received as a sample from the toroid people.
I posted a small pic at ou and if you want to see the pic and some comments, here is the link.
If you are busy today don't bother.
I will not be using this type and the pic on overunity.com is for documentation only.

big flakey fight to light the 2 1/2" toroid J type material.

NOW
TA DA

I used the 2 1/2 inch toroid from the same folks but with the W core like the jeanna's light and it works fine.
I will post a pic, and here is the page on ou
the W type pix

Here is the info
2T,8T,100T
TIP31C
236r
835v465Hz ...very low!

It lights the 15w growlight tube and the 20w cfl easily and well.
Here are the pix.
I am going to wind this like the Golden one and see how it does with so many turns.
100T is very few, so I am pleased at this progress. I just want to push it hard and see.
here are the pix.
jeanna

oops I forgot to measure amps draw, and when I remembered the AAA rechargeable was too low.
I don't have one charged up right now, and just popped in the Li AAA and OMG it showed 1200v (with the same 100 turns!)
The amps draw with that lithium is 160mA. I think I will recharge and try again with the NiMH.

[Vortex]

Jenna and All,
Now that MATERIAL W seems worthy ..
I remind ya all of Toroid made of Material W (ICH) H5C2T31X8X1 1.23 O.D 0.718 I.D. 0.218 Thick
$1 each or $0.75 for 10+ (using 2 coils might be effective )
links here: http://www.energeticforum.com/renewa...html#post76733
and Material info
links here: http://www.energeticforum.com/renewa...html#post76744

[jeanna]

Jenna and All,
Now that MATERIAL W seems worthy ..
I remind ya all of Toroid made of Material W (ICH) H5C2T31X8X1 1.23 O.D 0.718 I.D. 0.218 Thick
[/url]

Yes, vortex, the W seems to be the stuff.
CWSBytemark has a few of them in W and so does the place I mentioned above.(MTL??) and they both have minimums of $30.00 so even at 25 cents, the minimum will getcha.
I think these big ones will be around $5 or $6

Gadgetmall in NC has a website and he is buying an order of the big one (the exact one) for jeanna's lights for folks to buy from him.

Thanks Vortex.
Gadgetmall posts here too and sometimes calls himself fusionchip.
Yesterday he indicated that he already placed his order, but if you pm him you could let us know what he says.

thank you,

jeanna

[everwiser]

I haven't checked Mouser Electronics for these but there is no minimum order restriction so if you want to only buy a few parts you can. Of course, you'll probably want to make the shipping cost worthwhile by getting more in parts than shipping but there you are. I get most of my components from them.

[unzapped]

Thanks for your replies

Thank you for your replies... I am using this information for my joule thief maglight project.

Thanks
Jason

[jeanna]

a new video

Hi everybody,

I made a new JT secondary powered light bulb modification.
I also modified the lamp so the whole lamp and bulb work together as a joule thief secondary light.

(aka jeanna's light, I think.)

19leds jeanna's light in a lamp

Enjoy,

jeanna

[Pirate88179]

Way to go Jeanna! That is really cool.

Bill

[raff]

Hi guys/gals,

nice work on the joule thief

never thought adding a third coil(for the CFL) will be fine... usually the LED in the collector "catches" the BEMF , and therefore lights up..

anyways, will try making one also...

parts to be used: those switching transistors commonly found on PC PS..rated at about 7A 400V .... for the core, cant seem to find a big enough torroid for it(I have one here about 1.2" OD but 10T is only about 88uH on my LC meter) I wonder if this is even suitable.. not SO sure where this torroid came from(maybe just for EMI filtering)... so.. CORE to use would be (again) from the PC PS trafo E-I core (with airgap removed)....I think this will do fine..

till next year! merry X-mas and a Happy New YEAR to all!

[mk1]

Hi everybody,

I made a new JT secondary powered light bulb modification.
I also modified the lamp so the whole lamp and bulb work together as a joule thief secondary light.

(aka jeanna's light, I think.)

19leds jeanna's light in a lamp

Enjoy,

jeanna

Very nice work !

I got this membership , before the one on OU , i maybe time to use it ! Since pretty much everyone is here.

Mark

[jeanna]

Hi Mark,
Yes, and this is a quiet forum compared to ou.

----

So, for that reason and because not everybody here likes to thrash it out at ou (or whatever) I am announcing my latest success.
I wound a toroid with the MK1jeanna hybrid type winding with about 110 Turns on the secondary and got 600v-727v.

What is so great to me about this is how small the toroid is... 0.86 inch OD.

the windings are
2T,9T,110T
TIP31 from RS
25r at the base
one AAA battery.

It lights a neon
a 7w fl tube
a 15w tube
it dimly lights a fat 20w fl tube but it stays lit when my hands are off it.
No cfl.

So, I had just suggested to lidmotor to take his apart and gut it for the easiest bright light (which is true)
I grabbed an unmodified 19leds bulb and it lights at full brightness. wow.
This is more light than the cfl even though the cfl is harder to light.

So here is a christmas present to all.

jeanna

[sucahyo]

It lights a neon
a 7w fl tube
a 15w tube
it dimly lights a fat 20w fl tube but it stays lit when my hands are off it.

Congratulation .

[Pirate88179]

Way to go Jeanna!

Bill

[Lidmotor]

@ Jeanna
I havn't taken my LoA bulb apart yet so I might try your new toroid coil on it first. I have a core that should work on this. I'm working on three projects at the same time now and trying to fit them into any free time during the holidays.

Thanks,

Lidmotor

[jeanna]

Thank you everybody,


OK lidmotor,
Here is a closer look. I described the details above so I won't repeat it... just a closer look.
I wrapped the string 3 times around each side of the centertapped primary to keep the primary from being overlapped by the secondary. The string is about as thick as some 24awg wire.
This is the Tor-61 from allelectronics. I am going to check out the mmi info now to see what they have.
jeanna