Joule Thief

[TheNOP]

Bill 

I have not got to the part where  some of you are lighting  LEDs  with one  tirn  and  apparently not  loosing power by doing it .
If it was  that simple every  transformer  would be OU .
I am not saying  that it can't be done ......  I am  saying that I can't  do it yet .



gary

in the jt, the transistor amplify the voltage.
but is not all of what make it light leds/neons, with or without, a secondary third coil.

yes, the amplify voltage alone can light multiple leds in parallel and possibly a few in series.
but it is the backemf that do the wonder.

the one turn secondary third coils energy is got, almost all, from the backemf only.
if one turn = < then what is need to light a led, then only the backemf is doing the work
EX: emf: one turn < 3 volt, backemf  kick:  = > 3 volts for a one turn


seem like the kick is a one way thing with the toroid.

we pick the rising but not the falling ?
does it propagate trough magnetism ?

[resonanceman]

  The main thing to remember is that a coil which shows highimpedance delays it's current flow.

     A shorted highimpedance coil current will happen at a different time than the exciting magnetic saturation change

I am wondering  if  this  could be used in conjunction  with  Paul Lowrences  ideas
http://www.overunity.com/index.php?topic=6593.0
design 3 in particular 

http://greenselfreliantenergy.com/forum/index.php?topic=201.0

design  3 used  different core materials to  affect  the  time it takes for the flux to change .

Would using  core materials  similar to  what he  would  use help  with these toroids?
Would  Paul  get better results if he  used  different impedances in  his  coils sets?

gary

[innovation_station]

so i stuck that coil on the freq genny and scope ....   looks like 180 -200 khz works best ... 


i can see amplification on my scope ...  out is bigger than inputted wave ..

ist!

[TheNOP]

@IST
the voltage stepping up does not suprise me, but...

that is strange.
i would have think that the tunelling diode would have changed the output signal trace.

[sparks]

   @Inno


    That looks like open voltage measurements  the problem is when you load down the secondary it wont be as pretty.