Joule Thief

[altrez]

@jeanna

So far I have got the spark from the stun gun to about 1 inch. I know I can do better but will need to make a better spark gap. Once I move it to far I can hear some serious hissing.

-Altrez

[Artic_Knight]

i promise to upload pictures and diagrams when im done, this is a good project for many people, let me explain.

i have common household metals in the ground outside, these metals produce a decent current however there are some minor details to note about this current.

A)  it has a voltage POTENTIAL of 0.940v but has a constant voltage under load of 0.6v it has a ampere POTENTIAL of 4mah but constant of 2mah.

it currently is enough to light a LED but not brightly. i am trying to work it out to power a 13w CFL. i will need your help to get there however. 

what is the current highest frequency schematic? i have seen one with a 10uf cap in parallel with the bettery  and a base resistor of 500k with a 1000uf cap. the turns on the torroid were 2 and 5 respectively. is this our best? 

at worst i think i can light the LED to full brightness off of less than we have seen to date and at best i think i can light a CFL!

i will need to know a higher freq curcuit to continue my work, i can experiment till i find one but if someone could point me to it that would shorten my time span significantly as i do not have a osciliscope.

thanks

[Artic_Knight]

Would you happen to know of a good way for me to find out? I have a few multimeter's and a Scope. I just do not want to fry my testing equipment trying to find out

Thanks!

-Altrez

i feel you! especially that osciliscope is not cheep!  honestly i would say that you would have to start with the lowest powersource just to get it working. in order to do that the terminals would have to be connected as if it produces a spark its too high to measure on most equipment.  how you could go about this is beyond me at the moment. if i think of something i will be sure to post it.  im sure if you just fire it up and use it that way its gonna fry your equipment tho, this is some powerful stuff.

IMPORTANT NOTE.  it is well known fact that a 1/4 inch spark is 20kv so with that in mind you can measure the spark and determine roughly how much the voltage will be!  however the voltage could be higher as to ensure a spark so its more of a minimum guess not a max guess.

[Artic_Knight]

i have not tested the performance qualities yet against these coils but already im seeing electrical properties that are unusual.

coil (A) has half the turns and is a normal winding IE wrapping wire clockwise the entire time.

Coil (B) has double the turns but is a Tesla Bifiliar coil IE it has 2 wires side by side, the first wire makes rotations clockwise then comes back and links to the second wire which winds along side wire 1. so it follows the same path twice side by side.

the electricial difference i have seen so far is they both have the same resistance!  i cant wait to fire these up on the JT later to see what happens. supposedly the tesla bifiliar will increase magnetic capacitance according to him but what effect will that have? increase voltage? amperage? increase the magnetism per volt IE increasing the effeciency of the unit?

fun times. this will be the first time i have tested a tesla bifiliar in this way.

[weri812]

hello WilbyI

gould you email me at weri812@aol.com

the mail system not working on here.

thanks

God Bless
wer