Joule Thief

[resonanceman]

Gadget, this is brilliant!


Now, the question is what is nichrome wire? and mostly, WHERE do I find it?
Is it from an old heater from the thrift store?

Jeanna

That would do it .

An old toaster would work too .

gary

[gadgetmall]

Gadget

I would like to see  you  add a secondary and move  your  heater circuit to that secondary ..... it should  be  even more efficient .

gary

I will after i complete the test on a STANDARD  joule thief with a 22 turn secondary  i will improve this . This is a test Ist asked meto do and post using a NORMAL jt . I just added the 22 turn secondary to see it in operation and running 2  .5 watt leds.they did not increase the current draw and actually increased the c e voltage  . I have a much better set up i used months ago but i didn't go into detail like this . a better Jt and transistor will charge this Bcap up in 8 hours exactly like the CIS solar panel . 8 hours of sunlight will charge the 650f cap up so close to full 2.5.  2.6 v . Well i see you got a few . i have 35 left and thats it for a while on the 650f until mid next year .Unless an one wants to buy 2 pallets of them . 200,000 pieces . I cannot at this time .

[stprue]

I thought that this type of material was an amp eater working solely on high resistence to creat heat!  If that is the case then this would be the most efficient toaster I have ever seen!  People am I wrong on this?

[gadgetmall]

Gadget, this is brilliant!

I want to replicate this, of course.
Thank you for the description and the drawing.

Now, the question is what is nichrome wire? and mostly, WHERE do I find it?
Is it from an old heater from the thrift store?

Bravo and
thank you,

jeanna

Yep an old heater that the motor burned up in and burnt out . I save everything . you can also buy it here real cheap . http://jacobs-online.biz/nichrome_wire.htm
i just bought 100 feet of #36 for 6 dollars including shipping also ! The wire off the old heater might be around 24 or something bigger .
An i had another thought about Heat . Using a Peltier Module or a group o fthem we could have heat and cold . I have some somewhere around here . Its another experiment for another day .

Gadget

[Pirate88179]

Jeanna:

You can get nichrome wire at electrical supply places on the net.  Also, they use this wire in the igniters for Estes model rockets available at hobby supply places.  Just make sure to scrape off the phosporous like coating that flares up to start the engine first, or it will ignite and burn the wire in half.  I think I have a roll of that wire around here somewhere, left over from my ceramic machining days.

@ Gadget:

Thank you.  Wow, 1,000 pages, we actually made it.  I believe this is an OU.com record, or at least it should be.  Nice work on the heater discovery.  Now Jeanna can make her toaster...and I'll bet she does.  This is really fantastic.

@ All:

We have hit 1,000 pages and are nearing 10,000 posts!!!!

This has been a phenomenal journey to see where we all started, and where we are now.  For me, personally, I have learned so much about electronics in general and joule thief circuits and supercaps specifically, than I could have ever learned in this short a time period anywhere else.  I want to thank each and every person who has ever posted here and, of course, all of the regular group that has contributed and shared so many wonderful experiments, devices and ideas.  Thank you all!
Also, thanks to Stefan for putting this great site up and for all of his hard work in keeping it going.  Thank you Stefan.

Bill