Joule Thief

[Pirate88179]

@ All:

Here is a repost of my video where I am lighting 4 ultrabright leds from the EB.  I am using here also a 10F supercap:

http://www.youtube.com/watch?v=A4gRDwPqSz4

This is from a while ago and it is the most basic type of JT circuit you can make.  Goldmine 1" toroid, 1k resistor, 2N3904 transistor 22 ga. bifilar, stranded wire and the EB.

Each of these ultrabright LEDs are rated at 26,000 MCD and need at least 3.5-4 vdc and 40 mA's each to light.  These are very bright and are the 10mm size and not the small ones.

The secret was the use of the supercap.  As most of you know, I went on from here to light many things frm my EB but, now that I finally looked at my scope shots...I can see that the supercaps capture the spikes and store them as real power.

This is how I was able to fully charge my 2.3 volt, 650F supercap even though my DMM said I was only getting 1.95 vdc.  It is the spikes that are doing it, and many others here have done this as well.

As most of you that know me know, my background is in mechanical engineering and machining.  I am no electronics wiz by any means.  A lot of this I stumbled upon and I also had a lot of help from all of you good folks here.

As Jeanna said, all of my "big" lighting experiments using the EB for the source (400 5mm leds, and a 48" floro tube) came from using my modified Fuji circuit.  While this technically (in my mind anyway) is a JT circuit, it does not compare to what many of you have been able to wind by hand.  A lot of you have surpassed my output from the Fuji with your wound toroids and secondaries and very advanced circuits.

So, I did not post anything dealing with that but if anyone is interested, they can check my Youtube channel to see my vids. (I think I have 38 of them there now)

Bill

[Pirate88179]

nope, its been holding steady at (0.66v - 0.68v) for the past 2 days. current is rising as time goes by, but not as fast as my impatience would like to have it ... im about to dig up 1 of the electrodes and move it further away.  this will of course take me off the magnetic lines a bit,  67-degrees inclination, i need pipe that goes halfway to china on the north end to go across the yard....

to get more voltage i may need more surface area, which means more electrodes, or bigger ones.

Here is a hint from my experience for what it is worth.  You can take 2 nails of different material and get volts...volts are easy.  I think, again from experience, it is the surface area that give more mA's or even amps eventually.

My first EB got like 1.6 vdc but hardly any mA's.  I experimented and went from there.  This last year with my upgrade from the 3 magnesium fire starter blocks on the south side to a 5 lb block of magnesium in their place, did not give me more volts BUT, it really did juice up the amps.  I also moved my set-up eletrodes another 5 feet apart.  I could easily be wrong about this but as long as you are at least 5-10' apart, I don't think another 5 feet or so will make all that much difference.  It will help but, the other stuff is more important first in my opinion. (materials, alignment, mass/surface area, etc.)
Bill

***EDIT***  In other words, if I were rich, I would have a 55 gallon drum sized rod of carbon and another similar sized block of mag.  I would be willing to bet that my volts would still be in the 1.95-2.00 range but, I'll bet the mA's would be serious.

[xee2]

@ sm0ky2

nope, its been holding steady at (0.66v - 0.68v)

Most transistors will work in JT with a 0.60 volt battery. Try putting a large capacitor in parallel with your EB. Germanium transistors will work down to battery voltages of 0.3 volts. I have suggested using them but no one seeems to have posted much data about any results. Gadgetmall has apparently gotten good results with them.

[oscar]

Hi jeanna,

I saw your two vids which you published at
http://www.youtube.com/user/jeannacav
showing wireless signal/energy transmission from a JT to a Stubblefield coil.
The signal from the JT is transmitted through air.

An experiment which I describe here:
http://www.overunity.com/index.php?topic=7769.msg193504#msg193504
makes me believe, that if you dig the Stubblefield coil into soil/sand and the JT as well, so that both are next to each other, both being embedded in the same hard insulating medium, the Stubblefield coil will pick up a much stronger signal.

This prediction is based on my theory that the transmitted signal is an electrostatic signal (pressure waves at ultra high frequency), and such a signal will best travel through a hard and dense insulator (sand or dry soil or ideally stone or a crystal).

edit: I just realize that I should have probably posted this in the thread
http://www.overunity.com/index.php?topic=4455
"Stubblefield coils (bifilar) and speculations"

[sm0ky2]

They couldn't have given this device a better name.

because i feel like a Stole something !!!!