Joule Thief

[innovation_station]

pure joy ....  what else could i add


i have wired 10 rings from 1 supply ..  it could lite hundreds of leds 

i have lit 90 leds from 1 aa b4 and 3 rings....

the thing is this .... the transistor only can disapate 1.8 wats.... each ..... as the specs say on the 3904   npn

did someone say  add em up 

ist

btw i have about 20 more things i did with this lil unit

[jeanna]

Cool thread Bill,

Maybe you will recall, I was wondering if we could wire up our NS generators like the joule thief, by twisting the 2 ends of differing metals (5 and 6)  together then using the other 2 (the 10's) to make a kind of joule thief circuit which is self starting when wet.

I never did it, because I never brought the generator inside to solder it up when I had an extra transistor hanging around.

I should perhaps take this thought over to the stub bifilar thread, but maybe , if you have another transistor free, you could solder it to a NS gen and get it wet and light those LED lights.

Wow, I am so glad you started this thread. I could do this suggestion in a few days, myself.

Thanks Bill,

jeanna

[Pirate88179]

Hi Jeanna:

Yes, I remember you suggesting this a while back.  Actually what I hope to do first, is to go back to the carbon rod and magnesium block and wire the Joule thief to that to see what I can get out of it.

The next step would be to try one of the NS coils.

I suspect, but am not sure yet, that I was getting enough juice out of the electrodes that by using the Joule Thief I should be able to light several superbright leds.  We will see.

Bill

[innovation_station]

what is the ns coil???  hummm  ill build it 

lol

just bought another new cam but it is junk too i hope to find a good one yet and when i do lol....

you will see amazing sparks....

all leds i have used were super bright leds    bring your shades lol ... 

this is the spec sheet ....    http://www.besthongkong.com/product_info.php?manufacturers_id=&products_id=34

thease are the leds you  see in this flashlight

ist!

[Freezer]

what is the ns coil???  hummm  ill build it 

lol

just bought another new cam but it is junk too i hope to find a good one yet and when i do lol....

you will see amazing sparks....

all leds i have used were super bright leds    bring your shades lol ... 

this is the spec sheet ....    http://www.besthongkong.com/product_info.php?manufacturers_id=&products_id=34

thease are the leds you  see in this flashlight

ist!

NS = Nathan Stubblefield

Nice work on the three joule thief device, very interesting look indeed.    What kind of stuff are you getting off the secondary running through the cores?

Try looking at this store -
http://www.dealextreme.com/products.dx/category.410~page.1

They have nice cheap led parts, even up to a 50w led. 

http://www.dealextreme.com/details.dx/sku.5766

For the best 5w led, I recommend a cree. They even sell tritium vials.