Joule Thief

[JouleSeeker]

He may be a physics professor but he does not seem to understand electronic circuits. He appears to be measuring the instantaneous output power produced by the collapsing magnetic field of the output coil against the simultaneous input power. This is indeed over unity for an instant but only because the energy stored in the coil over a long part of the cycle is being released in a very short time at that point in the cycle. If the "energy in" over a complete cycle is compared to the "energy out" over a complete cycle the efficiency is less than 50%. If you take a car battery with a trickle charger and let it charge for 24 hours and then put a 1 ohm resistor on the battery and measure the input to output power it will also be over unity for a short time. But that is not a true measurement of over unity because it is using stored energy.

This is Dr. Steven Jones. 
@Xee2:  I am an Emeritus Professor of Physics and I did not make the mistake of measuring Power ( input and output) over part of a cycle.    I measure the input power over numerous cycles, typically approx 25 cycles, for both the input power and the output power, as I explained.

   You will find this on the video, and on my posts on this circuit here:

http://www.overunityresearch.com/index.php?topic=853.0

@pirate -- Sterling was talking about a particular JT circuit that depleted a rechargeable battery that was ALREADY mostly depleted when the test began.  It is true that some JT circuits are much more efficient than this particular JT.
Note that the circuit I'm testing with apparent OU results is not a standard JT circuit.  See the schematic at the above URL.

Also, I hope it came through on the vid that this device needs to be replicated and tested further BEFORE one can be sure of OU for it.

[neptune]

I do not normally follow the Joule Thief Thread . Let us give the Professor the respect he deserves . He has said the it needs replication and further investigation .I do not have access to scopes etc . The great thing about this circuit is its simplicity . I believe someone will soon loop it . As regards Sterling Allen , he can not know everything , he does his best . Sure beats Mainstream Media , where you would get some dumb blonde asking is it available in pink .

[JouleSeeker]

  I actually began a thread on this "reverse-JT" circuit here at OU on May 20th:

http://www.overunity.com/index.php?topic=10773.msg287594#msg287594

You may wish to reply there, or at the OUResearch thread listed above.

-- Steven J  (retired Prof.)

[hartiberlin]

NO BATTERY !!!!

http://www.youtube.com/watch?v=feRdjDglbq0

Youtube says the user has deleted this video.
What was it ?

Many thanks.

P.S. Who has replicated already Professor Steven Jones circuit and can confirm
the overunity there ?

We should have a new thread then about it I guess...

Regards, Stefan.

[Pirate88179]

This is Dr. Steven Jones. 
@Xee2:  I am an Emeritus Professor of Physics and I did not make the mistake of measuring Power ( input and output) over part of a cycle.    I measure the input power over numerous cycles, typically approx 25 cycles, for both the input power and the output power, as I explained.

   You will find this on the video, and on my posts on this circuit here:

http://www.overunityresearch.com/index.php?topic=853.0

@pirate -- Sterling was talking about a particular JT circuit that depleted a rechargeable battery that was ALREADY mostly depleted when the test began.  It is true that some JT circuits are much more efficient than this particular JT.
Note that the circuit I'm testing with apparent OU results is not a standard JT circuit.  See the schematic at the above URL.

Also, I hope it came through on the vid that this device needs to be replicated and tested further BEFORE one can be sure of OU for it.

Dr. Jones:

I meant no disrespect to you or your device.  I have been following your work for a while now and I am impressed with your efforts and look forward to possibly attempting a replication.

I just get tired of reading things on the net about the JT circuit like..."Only good for lighting an led for a few hours", or "Interesting circuit but it can't be used for anything", etc.  (I see this in Youtube comments all of the time, written by folks that obviously have no clue as to what a decent JT can do.) 

I realize that Sterling is a very busy person and I understand now your explanation to his battery ref. in his article.  I assumed (Never a good thing to do) that it was just more incorrect information circulating about on the JT circuit in general.

I wish you the best of luck with your circuit and the testing results.

Bill