Is joule thief circuit gets overunity?

[TinselKoala]

Lawrence, now that you have calibrated -- or rather adjusted the compensation of -- all your probes..... you still haven't said anything about the large voltage discrepancy that one of your probes showed. Was this fixed, what was the cause, and how did you fix it? This would not normally be caused by poor compensation and would not normally be addressed by correcting the compensation. Rather, it sounds to me like perhaps there is something wrong with the voltage divider inside the probe.
(I recently had to repair one of my probes, the initial 100R resistor was open entirely to small voltages but would conduct for higher ones, wreaking utter havoc with my ability to interpret readings from it. It was evidently damaged by a surge or something, or maybe mechanical strain. But on replacement with a new resistor all is now copacetic again.)

Could you please provide _new_ images of your calibrator output traces from each probe? This is just so we all can be quite sure that you have indeed compensated them correctly and that the voltage problem is fixed.

Please set the scope up as follows (Do NOT use any "auto" or "default" or "factory settings" buttons, please do this manually): time base at 250 microseconds per division. Vertical attenuation 1 volt/division, and assure channel is not inverted. Channel set for 10x attenuated probe, and the switch on the probe itself set to 10x. Channel baseline trace set _exactly_ on the center horizontal graticule line, and trigger set for the channel displayed and at one division above the baseline (+ 1.0 volt) and rising edge. Parameters displayed as "numbers in boxes" to the right of the traces should include the frequency _of the displayed channel_ and its P-P voltage.

ETA: I notice that you often display "RMS" values in the parameters boxes. Are you using these RMS values in your spreadsheet power computations in any way?

[ltseung888]

@TK

You posted too much information for me to digest at present. Poynt99 has Board 33 and is in a position to answer most of your questions.  PhysicsProf should have two Boards within a few days.  PhysicsProf also has the Atten and he can help me to answer your questions.

In addition, Mr. Zhou and I met Prof. Julian Tree over the weekend.  Prof. Julian Tree actually built an oscilloscope test-ready board himself and presented it in Europe and at Dartmouth University, USA.  His Board has a COP of -4.9 and he used the oscilloscopes in the Physics Teaching Laboratory of Dartmouth.  I gave him 5 Boards (101-105) to take back to Europe and USA.  These Boards were tested at our meeting in Shenzhen.  He will further test them before comments.

To make sure that the Atten Oscilloscopes were calibrated and set up properly, I asked for the help of Mr. Zhou.  Mr. Zhou sells the Atten Oscilloscopes, calibrates and demonstrates the features for his customers.  In addition, Dr. Raymond Ting, who checks out new invention claims for the Chinese Government also has two Boards.  He has two Atten Oscilloscopes.  I shall post their certified results when ready.

I sow seeds.  I follow the Atten User Manuals for Calibration.  I do not claim to be an oscilloscope expert.  (I never mastered all the features on my mobile phone .)  Now the seeds are in the hands of experts.  We can wait for their test results.

My offer to send you a test-ready board still stands.  In that way, You can do all tests correctly yourself.  I shall not make mistakes and waste the time of the top experts especially now - many influential individuals are involved.

God Bless

[TinselKoala]

Lawrence, when will you get it through your silly head that I have six or seven JTs here that vastly outperform yours? When will you realize that the circuit I showed above on the printed circuit board is EXACTLY THE SAME circuit that your boards are using? Does overunity really depend on using a pad-per-hole board sloppily assembled with cold solder joints and stray wiring? Please do not talk about sending me one of your boards. Instead, address the problems in your own presentation, analysis, data gathering, and interpretations.

Why do you not respond specifically to my specific questions?
1. I have asked you several times if your waveforms depend at all on probe cable routing. It would take you five minutes to perform the appropriate tests and report your results.
2. I have asked you to provide your calibrator output traces again, to show that your probes are now properly compensated and that the voltage discrepancy has been corrected. None of the big names you drop or the references you make are helping you to perform this simple task, which might take ten minutes of your precious time.
3. I have asked you how you resolved the huge voltage error of one of your probes. This is not a compensation issue, and since the error is about a factor of 5, it is probably not simply a 10x atten setting improperly configured. What caused it, how did you correct it, and let's see the trace from your calibrator proving it has been corrected. Please.

Do you recall your difficulty with the concept of AC versus DC coupling? Perhaps you will acknowledge that there may be one or two things about oscilloscopes and measurements that you do not understand fully, that your manual does not help you with, and that your various named experts are also seemingly not aware of. However, if you pay careful attention to what people like Poynt99, Picowatt, and... yes.... yours truly are telling you, you just might improve your skills and knowledge.

Poynt99 has Board 33 and is in a position to answer most of your questions.

How can Poynt99 possibly answer my questions? You are the one with the test probe that indicates the wrong voltage,  you are the one who posted the photograph that conflicts with the schematic you posted, you are the only one who can move your test leads around .... how can .99 possibly answer these questions? Only YOU can answer my questions, Lawrence.

ETA: I notice that you often display "RMS" values in the parameters boxes. Are you using these RMS values in your spreadsheet power computations in any way? Is Poynt99 in a position to answer this question?

[ltseung888]

Cable position effects.  Not noticeable in the case shown.

[poynt99]

Although the photo is for board #71 and the scope shots are for board #80, yes Lawrence you need to respond to the question of how the probe was connected for board #80's input current measurement, because the probe configuration shown in #71 is not in accordance with your diagram.