Joule Thief

[theredknight]

Hey thanks everyone for clearing up my confusions as to this circuit. I'll be sure to post in the Earth Battery forum the questions I have there.

Once I get this working, I'll pop back in here and follow your plans on getting a better joule thief up.

I wanted to post a new picture fixing my old picture so I didn't lead anyone astray. This is the one you said would work (and wouldn't blow up capacitors) yes?

thanks again
~RK

[Pirate88179]

Hey thanks everyone for clearing up my confusions as to this circuit. I'll be sure to post in the Earth Battery forum the questions I have there.

Once I get this working, I'll pop back in here and follow your plans on getting a better joule thief up.

I wanted to post a new picture fixing my old picture so I didn't lead anyone astray. This is the one you said would work (and wouldn't blow up capacitors) yes?

thanks again
~RK

RK:

Yes, please stick around here too as there are some great new low amp draw circuits being designed and experimented with.  They will have many applications of which the EB is but one.

Jeanna's circuit, with the large coil, has a much higher output than I ever got from my modified Fuji.  The Fuji is cheap and easy to get started with which is why I was using them back then for my experiments.  I have since built 2 of Jeanna's circuits and now I am looking into kooler's, stprue's, Altrez, and Xee2's circuits as well.  Once you wind your first basic JT circuit, there will be no stopping you.

I look forward to seeing your work.

Bill

[stprue]

the one xee2 posted.. i have solder one up it has been running since 1-14-10
it stills shows 1.48 volts the same as the day i stuck the battery in..
the new circuit i made runs the leds alot brighter but a bit more ma's
as you all seen that stprue has running..
i have a video i will post soon of the circuit running a led on the battery side..

out
robbie

If you are lighting off the battery side you must be getting BEMF into the battery which is keeping your battery charged!  This is not working on my circuit with the maxcap but I am not using the right transistor yet!  I should get my next shipment of parts in, in a few days.

[stprue]

here is the video i talked of
better camera
it has a 265,000 mcd led on the battery rail..
but the battery led will not light till you have a load on the secondary

http://www.youtube.com/user/koolerization

hope this helps

robbie

Nice vid Kooler, I know that those 265, 000mcd leds are harder to light up

[altrez]

the one xee2 posted.. i have solder one up it has been running since 1-14-10
it stills shows 1.48 volts the same as the day i stuck the battery in..
the new circuit i made runs the leds alot brighter but a bit more ma's
as you all seen that stprue has running..
i have a video i will post soon of the circuit running a led on the battery side..

out
robbie

Thank you Robbie,

You are doing some great work! Can you please post a schematic of your new circuit? I have placed an order for the msa transistors you posted. I want to do some side by side tests with your circuit and a normal JT with a lux meter.

I think you are on to something that will prove to be a self runner. I am working on the simulations in my mind.

Very Great work!

Thank so much,

-Altrez