Nathan Stubblefield Earth battery/Self Generating Induction Coil Replications

[freepow]

@ Jeanna

30 turns on secondary and bif of 13,13 turns, I have found that the more mA's I have = the more voltage output I get out of my Joule thief, Am I wrong ?

[jeanna]

Great info.

Are you ready? lets start here for 1 more post but since this is joule thief instructions it should be over there.

So, you probably need to "tune" the joule thief.

13T and 13T are way too much I bet.

Start by taking the 13T,13T down to 10T,10T.
If that doesn't work lower it more and more.

There is a way to wind the bifilar that is much easier to mess with which is a straight center-tapped way. Try this drawing: 
/////||////////
that is supposed to be center tapped 5T,8T. Do you see?
If you do I will continue to use it.

Let me know if you need help with that part.

My guess is that the best tuning will be around 5T,8T.
If that is a tor-23 from allelectronics, that is exactly the tuning you want.
Also, get a variable resistor in the base resistor place so you can reduce or raise that.
The base resistance can go from 20r (lots of amps draw) to over 12K (gadget has said this or even higher, I forget.)

So, please let me know.

jeanna

[freepow]

Thanks Jeanna, I tried a 10,10 turn with 1x EER connected, but wont light 1 LED, when I connect 2x EER It lights 1 LED, so I tried 5,8 centre tapped with 1x EER and it lights LED very dimly, 2x EER it lights good, but with 2x EER and 2 LED's they both light very dimly...
what do you see in all of this?

Oh by the way, I forgot to mention I tuned the Joule thief in the photos above with a variable resistor, and best was at o ohms, so i just used a wire instead of resistor.

[lasersaber]

freepow,

I have done a little bit of solar panel experimenting.  I know almost nothing about it.

Jeanne,

I have just started building joule thiefs.  I get totally lost in the joule thief thread every time I start reading it.  Is there a joule thief that you would recommend for me to use with my earth battery?  I have the 5 for 1 toroid from electronics goldmine.  Right now I'm pretty happy just lighting a single bright LED. If I could get lots of them lit then my earth battery might have some practical usefulness right now.  I have over 30 milliamps to play with so I should be able to do it.  Any advice you might have would be greatly appreciated.  If I get it working I will post videos of it here on overunity.  Maybe we should start a thread for earth battery specific joule thiefs.

Thanks

[jeanna]

Thanks Jeanna, I tried a 10,10 turn with 1x EER connected, but wont light 1 LED, when I connect 2x EER It lights 1 LED, so I tried 5,8 centre tapped with 1x EER and it lights LED very dimly, 2x EER it lights good, but with 2x EER and 2 LED's they both light very dimly...
what do you see in all of this?

Oh by the way, I forgot to mention I tuned the Joule thief in the photos above with a variable resistor, and best was at o ohms, so i just used a wire instead of resistor.

OK this is very interesting for other reasons, but for now please use something at the base resistor. 10 ohms is fine
Also just stick with the 1xEER for now. You may need to beef it up some, but since it does light with 5T,8T and 1xEER, this is the place I would start.

First, add another 10 turns of the secondary.
Also first put the pot back with 10 ohms, because you have some EER oscillations going on and you will need to tune the toroid to those as well as all the rest of it.

Take the primary down as far as 2T,8T,
If the light goes out or gets dimmer anywhere on the way to 2T stop and add the last turn back.
then start to reduce the 8T and watch the brightness.

The amps draw is related to the initial transistor switching, but if it is too little the volts off the secondary will be too low.
(I am coming to this realization:)
The amps are not being drawn by the leds off the secondary, but they need to have a high spike.
That high spike is derived from the initial amps draw that makes the first JT oscillations.
So, the higher the spike you can get for the least joule thief input the brighter the leds will shine.

The leds are drawing the frequency down, and when that gets too low, the lights will be too dim.

As the volts go up, the frequency goes down, and with an EER you have high frequency, but lets see what happens first.

Please let me know and I will respond from what happens.

jeanna

ps, what is the volts/mamps from the 1x and the 2x?

Maybe we should start a thread for earth battery specific joule thiefs.

Good idea... lets do that here. I will start it now.