Joule Thief

[Mk1]

@ Mk1

Please don't go away mad, I didn't mean anything towards you in the previous posts other than to keep an open mind towards the possibilities of a given circuit.

"Now please remind me what you did for the cause, i don't remember? I know you can replicate !" 

I have tried my best to stay neutral even though I have messed around with the JT circuit since 2006.

That is the whole point of my post, everyone should be able to replicate lighting 300 - 1,000 LED's or 1 CFL it doesn't matter, how close can we make the JT circuit to the Fuji?  The original JT cct could only run 1 LED let alone 300 - 1,000 LED's or 1 CFL light, I think  gadgetmall  and Pirate et al are onto something!

I haven't succeeded yet on an AA battery where gadgetmall has, I'm not biased here on the JT vs the Fuji, all I'm saying is that the Fuji cct has less variables and can achieve better results across more replicators.

Isn't that what we're after?

Regards,
Paul

Any Jt will light has many led that you have , on pickup coil, you missed that part?

And about the gadget mod i told you already , you are right, so what do you want?

[Thaelin]

   disregard, just a plug to start getting notifys again.

thaelin
   
     By the way, my Jt didn't light the fl.    cam circuits I got were weak.

oh well, If kodak works, why fight it. Camera store just over the way.

[Pirate88179]

@ MK1:

Heck No!  We are far from done, at least I am.  I totally think we have done well and will continue to do so.  We could have stopped at 2 leds as the original jt ran with 1.  Look where we are now?  Where will we be next moth? 10,000 leds?  maybe....who knows.

In the beginning of this topic somewhere, I joked about running my heat pump from a jt circuit and now......maybe that's not such a joke after all?  I believe anything is possible.  I am almost done with my Bedini and can't wait to hook the jt into that.

Anyway, no it is not time to stop and say we have done it.  Everything can always be improved upon in my opinion.

Bill

[Thaelin]

   Pirate, thats why its called "Research".  RE - Search  always new avenues to take
and new ideas to try.

thaelin

[electricme]

@Wilby
Thanks for the web address Wil, I will go and take a look shortly.
I don't know if the UPC2933 or LT1084CP is avaliable in Australia, but will google them both to find out.
Nice to know it turns on at .7volt

Yesterday I discovered a Darlington turns on at 1.4volts.
I had made a darlington with descrete BC548 transisters, I turned on my bat switch, and it didnt work, here I am thinking I had done something wrong, just go to show, when you think you know it, something comes along to humble ones self, lol.

General Jim


@ Pardon,
Welcome to the forum,

Your question of "Should you use a fully charged 1.2v or 1.5v AA cell? or use an almost dead cell.

I JUST GOTTTTTA MOUSE, YIPEEEEE de General STRUK again.

No not you Pardon, I gota mouse plague at my place, tis WAR, de General against de Mouse army, I is winning.
Mouses so far over 20, my army no losses. he he.

OK getting back to the matter in hand,
Using an almost flatt batt is recomended, if you have a working Joul Thief unit, then put the flatt battery in and see what happens,
Use a fully charged cell, if you are starting as a newbie and its your first JT.

The JT was designed for the use of 1.5volts, but us smarties have also included 1.2 volt batts as we don't have to worry about the next battery we have to buy.

Anyway Pardon, try swapping the LED around, or if the LED gets too bright, try putting a 1K resistor between the LED and current source.


Welcome to the JT forum Pardon.

General Jim

now I gotta catch up reading posts, all 40 of em lol