MH
Your readers need to understand that you are a complete hypocrite and attempt to twist the Facts to suit your present needs

you called TinMan an imbecile for claiming an internal combustion engine utilizes resonance in any way shape or form.

laughed and scoffed at him using this claim [HIS CLAIM] as an example of his utter ignorance on the subject.

Post 512
MH
Quote: Adjusting the timing of an ICE has absolutely nothing to do with resonance and there is no connection at all.




Quote post 514
MH
 Quote: No, an ICE doesn't resonate in any way, shape or form whatsoever.

Post 516.
MH
Quote; Just because a mechanical device like an ICE or a sewing machine has all sorts of adjustments that are related to the cycle timing, it does not necessarily mean that said device "resonates."

The whole idea is simply wrong.

Post 519-
MH Quote : I did not compare an ICE to a sewing machine.

Post 519
 MH Quote: It's all moot because we are not talking about ICEs except to state that they have!! nothing!! to do with resonance.
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In this thread.. MH found out that TinMan was right and Milehigh was COMPLETELY wrong.


he made the above comments as a complete authority on resonance calling TinMan an imbecile for making the statement.

MH boldly claimed this from a perspective of ignorance ,he has done this many times .

and today he makes this statement referring to his own personal Rigor and honesty and Titman's Lack of same.

MH
Quote

When I make an assumption I am trying to be conscious of any problems or pitfalls associated with the assumption and I am trying to avoid them and make reasonable assumptions that will stand up to any reasonable scrutiny.

end quote

MH
Your words fail to hold up to scrutiny.

and IMO those posting in this forum have a much better understanding of resonance and its potential.
And The TinMan has already taught you things you were completely clueless about on the Subject .

yet you try to stand as some total authority on the Topic and
MH quote
"I can't wait to close it down " on this forum !!


End Quote
And End of story

Chet:

Here, go ahead and please complete the current loop from Brad's diagram for the red dots for after the transistor has switched OFF.  The current starts in the right L1 coil moving from top to bottom.  Please mark up the diagram showing the full current loop and settle it once and for all.  Fulfill your destiny as a mother hen.

To quote your illustrious experimenter Brad, "Im not going down this babying road with you MH. If you cannot work out where the current flow continues from where the marked dot's are,then you clearly do not belong here."

MileHigh

Go ahead Brad and complete the current loop for the red dots.  It's your claim.

Chet?

Yes Mags, I noticed that too...hmm....ringing.  That video is fairly recent too...I think within the past year.  The thing that amazes me to this day about "this simple circuit" is that it turns out to not be all that simple after all.

I do agree that we have seen many variants of the legendary JT circuit and I have no problem with them being called JT's.  I have used many different ones myself so, how could I argue?  I just wanted folks to see the original circuit from the guy that named it...even though he gave credit to a Russian guy for the design.  I really like how Clive graphed the battery depletion which really demonstrates the real purpose for this circuit.  That is what got me involved early on was to be able to use 90%+ of an AA battery instead of 20%.

It is a fairly long video but worth watching.

Transformer Ringing...hmm....


Bill

PS  Clive also talks about how the circuit will run way below the voltage level that it will start at.  I have seen this myself many times.  The circuit will self-fire at say .6 volts but not .4.  If allowed to run it will continue to oscillate down to .3 or so but it will not start that low.  That alone shows something is ringing around back and forth to keep it going right? I believe it was TK that demonstrated that the oscillations continue long after the led is no longer illuminated. I had never even thought to look for that.

That's right. You may find this video of mine of interest:
http://www.youtube.com/watch?v=K7msKzlNzKw

However... I don't think that "ringing" (as in resonant ringing) is the proper word to describe this oscillatory behaviour. So MH is right.   


However x2: Joule Thiefs of a particular design can certainly exhibit _true_ resonant ringing. See the scopeshots below for examples of this. So MH is wrong.   

But note that the ringing (true resonance) is of a much higher frequency than the basic JT pulse-oscillations. So... MH is right. 


(If you search my YT channel for Joule Thief videos you will find lots and lots of demonstrations and explorations of various variants, far too many to list here.)

ya did?  Must have missed it. Was waiting on it. Was it more eff with the led across the transistor?


Mags

I can't find the report at the moment using the forum's Search function, but I think it's back in this thread somewhere, about where you first mentioned your idea about the efficiency of the two variants. Maybe someone else remembers where it is.

I can't find the report at the moment using the forum's Search function, but I think it's back in this thread somewhere, about where you first mentioned your idea about the efficiency of the two variants. Maybe someone else remembers where it is.

I do remember the tests you did with the light meter saying the led was slightly brighter across the transistor, but you were going to do a comparison of the input power for each.

But i may have missed that.


Mags

Below i have marked the current flow path(conventional current flow) during the !OFF! time of the transistor.

Brad

There you go you pathetic sleazy little weasel.  Why should anybody trust you at all?

The revenge of Dr. Brainfry, his head is turning bright purple.