Author Topic: Joule Thief (Read 6372477 times)

resonanceman · « **Reply #9960 on:** November 20, 2009, 10:02:55 PM »

Quote from: jeanna on November 20, 2009, 09:52:19 PM

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 · « **Reply #9961 on:** November 20, 2009, 10:07:56 PM »

Quote from: resonanceman on November 20, 2009, 08:15:48 PM

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 · « **Reply #9962 on:** November 20, 2009, 10:08:23 PM »

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 · « **Reply #9963 on:** November 20, 2009, 10:16:20 PM »

Quote from: jeanna on November 20, 2009, 09:52:19 PM

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 · « **Reply #9964 on:** November 20, 2009, 10:19:15 PM »

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

Mk1 · « **Reply #9965 on:** November 20, 2009, 10:25:36 PM »

@pirate

Do you want to make us a new home , New Tread ...

Lets call it something like the second stage jt ( SSJT for short ).

I would do it my self , but you did such a good job so far , and are endeavors fruitful ...

Congrats everyone !

Mark

Pirate88179 · « **Reply #9966 on:** November 20, 2009, 10:32:12 PM »

@ mark:

Thank you very much. I would be happy to if that is what everyone wants. I am not sure I understand the reason for it though unless it is because any newcomers will have a heat attack when they see they need to read 1,000 pages to get going. Is this why?

Otherwise, I see no problem in discussing the SSJT experiments here. It is up to all you guys, whatever the group wants to do is fine with me, and, if the group wants me to start it, I can do that, or someone else can. Except for a few photo sizing corrections and removal of a post or two by the poster's request, I have not had to do any real moderating here at all, but I am glad Stefan allows me to be able to do that on some of the topics I have started.

What does everyone think?

Bill

Pirate88179 · « **Reply #9967 on:** November 20, 2009, 10:32:38 PM »

10,000th post!!!

Bill

stprue · « **Reply #9968 on:** November 20, 2009, 10:32:50 PM »

Good idea Mk1, how about...

JT2000

Mk1 · « **Reply #9969 on:** November 20, 2009, 10:42:41 PM »

@pirate

I guess you didn't read my previous post on it , i gave more reasons for it ...

Ist and Gadget seem to like the idea.

Look at the post from today , we posted at about the same time , and the page changed .

This would conclude the first chapter , it would also be easier for new comers .

And we could take i little time to re aim and built on the basic idea .

Make it a jt world , lol

Mark

gadgetmall · « **Reply #9970 on:** November 20, 2009, 10:52:47 PM »

Shoot !!!! Sometime today the kitten jumped on the Experiment 2 part two and disconnected the charge bcap SOOOOO. i'll see if it will go O U from the run @1.389 and the charge is @ 1176

This will be a good test as a few milli volts are wasted along with the time . AHHH its 4:45 start again from here . If it goes to 2.4 to 2.6 i will be very happy ! I think it might !

gadget

guruji · « **Reply #9971 on:** November 20, 2009, 11:24:42 PM »

HI Gadgetmall very interesting about the heater. Even a water heater would work with your circuit you're mentioning? It would be a very good invention man
About the cap can one use a smaller one or a DC one?
Thanks man keep on with the good work.

innovation_station · « **Reply #9972 on:** November 20, 2009, 11:34:30 PM »

well gadget ...

what can i say my good friend you earned all you have discovered ..

a job well done !

this does infact conclude stage1 !

william

resonanceman · « **Reply #9973 on:** November 20, 2009, 11:38:18 PM »

Quote from: Mk1 on November 20, 2009, 10:42:41 PM

@pirate

I guess you didn't read my previous post on it , i gave more reasons for it ...

Ist and Gadget seem to like the idea.

Look at the post from today , we posted at about the same time , and the page changed .

This would conclude the first chapter , it would also be easier for new comers .

And we could take i little time to re aim and built on the basic idea .

Make it a jt world , lol

Mark

I see no reason to start a new thread.
I do not think anything has changed just because we hit a number.

This thread was to long to be practical for me to read all the posts when I first started . ...that was over 600 pages ago . I do not see that anything has changed

If the idea is to make it easier for newcomers ...... starting a new thread only splits the areas that they have to search for information in .

I would suggest a new locked thread ..... a thread that only " old timers " can write in .
I would suggest that the people that have been here quite while try to summerise what they have learned here ........and what they have achieved .
It could be called a JT primer ........or something like that .
It would be great to keep it under a dozen pages so everyone would have the time to read it .

We would need at least one good explanation of how to make a basic JT ....... then we could go into what has been done sense then . Things such as Jeana's secondarys ...... and Bills earth battery power

I would like to state again I am not suggesting a new thread for discussions .
I am suggesting a thread for a condensed version of what we have learned .
If discussions were allowed on this thread it would turn into a normal thread and information would become hidden in the mass of posts .

gary

gadgetmall · « **Reply #9974 on:** November 20, 2009, 11:40:24 PM »

Quote from: guruji on November 20, 2009, 11:24:42 PM

HI Gadgetmall very interesting about the heater. Even a water heater would work with your circuit you're mentioning? It would be a very good invention man
About the cap can one use a smaller one or a DC one?
Thanks man keep on with the good work.

Hi guruji
I would say no you cannot use a normal capacitor or anything lower . if your following My experiments they Use a battery capacitor from Maxwell.com called an ultracapacitor . this is the lowest they make in that series . the highest i believe is 3000farads . I have a 1500 farads that will do more than twice the work of the 650farad . So far this is the Strongest capacitor i have ever owned . It is amazing the power it stores . Its so scarry even at 2 volts the current it so high it will burn you if your hands are low resistance or moist (sweaty) . I have already done an experiment with the smaller supercapacitors and they do NOT work in this system . there just too weak for charging .
gadget

***update Experiment 2 part two : charge bcap just hit 1.200 and the run bcap is 1.327 as of 5:46 . Its looking good for over the run . I hope .

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