Joule Thief

[sparks]

    The phenomenon is called the magnetocaloric effect.

[resonanceman]

Your observations are interesting with regard to field compression.  DO you have any additional links.  I was thinking of a sort of block wall compression JTC, but haven't been able to wind a working toroid in ages.  Things have been working like crap lately with my breadboard.

Jadero

I gave up breadboards  a couple months after I started building .......it was like the wires  stayed  were they were suposed to ........until I I needed them to stay ........then watch out .......one  bad connection after another

Now  I have  a whole handful  of alligator clip leads
They are not perfect and  the circuits are a mess compared to a bread board........but I get alot more done.

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I do not have any links about  my ideas for magnetic  flux.
I have  been letting my basic  theorys simmer in the back of my mind for a few years
I have tried  a few times to build something but all my attempts  have fallen short
I hope to try  working on the  flux thing soon
My primary goal is to make an inductive spark gap........ in order to bre able to create  small controlled disruptive discharges.

The  idea is to  create  a gap  that  the flux has  problems  jumping .

I am thinking of using  a big toroid or   U cores
With  the primary and secondary at 12 and 6 oclock....... ( as compact as possible )
I would add magnets  on each side of the  core at 3 and 9 oclock
Cutting slots  for  the magnets might make it possible to use smaller magnets.

If it works as I hope .......each pulse   the  flux will build up on the primary side unti it  is strong  enough  to jump......
As soon as it jumps  the magnetic field  will try to
"quench " the flow ...... just like  a magneticly quenched spark gap.
It should guarantee  a very high rate of change.

The only bad thing I see about it ........the flux will jump at the same  power  level  each time .    This  circuit  would not work well in a situation where  you had to work over a wide range of power.


gary

[sparks]

  Tesla had the same problem so he motorized his spark gaps.  As current increases in the inductors the series motor speeds up and draws out the plasma.  This allows it to become more susceptible to the magnetic blow out produced by the motor coils magnetic fields.  Guys were getting overunity awhile back doing pulse motors and using reed swithces laid up on the stator of the motors.  Tesla homebrew motorized spark gap.  The motor mechanical power is bonus energy so tesla loaded her down with a fan that pushes fresh air into the gap and the plasma is excited by the unionized atoms and reverts back into an insulating gas.  Gases can be looked upon as electromagnetically stimulated plasma. 

[innovation_station]

how many diffrent voltage rectified feeds can i get from 1 colpase trigger wire ...  this is off the BASE CONNECTION ...   how many

answer i now have 5 from that 1 wire alone ... 

voltages are

15 vdc
13 vdc
14.25 vdc
5.12 vdc
7.75 vdc

ist

xee2 try it ....  lol

looks like i can get around 7 or 8 diffrent feed voltages from .. 1 trigger colpase feed ...  if this is correct i can get the same from the pulse wire ...  lol  that then is 14 diffrent voltage mesurements .. from 14 diffrent locations from 2 colpase wires ...  then there is the single secondary ... lol

peace ..  i will continue tommorow

[PaulLowrance]

For those who have not seen it, broli posted a great circuit that could be used for something like the joule thief to see if it can be self-running,

http://www.overunity.com/index.php?topic=8411.msg216551#msg216551

Someone else comment that the battery simply drains. If anyone finds a JT circuit that is cop>1, then please let me know.

BTW, received my goldmine toroids, so today I'll be doing a 100% replication of gadgets circuit. Cross your fingers.