End of story!
 
   
          John.

Just say a particular frequency when the reactance of an inductor and a
  capacitor balance.

But MH insists that there is no C value in a JT--it just an IR system.

Tinman science and MarkE science are worlds apart.

Not as much as you may think

When I'm flying I go by the book, as a fellow pilot I'll bet the
   Koala would agree.

Good thing bird's cant read,or they'd have to attach wheels.


Brad

Here is an interesting quote that Mark Dansie posted recently for y'all to contemplate:

“We are all capable of believing things which we know to be untrue, and then, when we are finally proved wrong, impudently twisting the facts so as to show that we were right.” George Orwell

Here is an interesting quote that Mark Dansie posted recently for y'all to contemplate:

“We are all capable of believing things which we know to be untrue, and then, when we are finally proved wrong, impudently twisting the facts so as to show that we were right.” George Orwell

The person that reads to much,and uses his brain to little,will fall into lazy habits of thinking.

The person that reads to much,and uses his brain to little,will fall into lazy habits of thinking.

There is irony in that very sentence.

I personally have no doubt that Tinman comprehends resonance.. after all.. it is the main path to NMR or NAR. 

Yes a hammer will ring natures bell at will ,however the tuned symphony is a more steadfast path ,member Chessnyt most recently sings the magic tune to water .

you can break either the crystal or water with a hammer
here is water
https://www.youtube.com/watch?v=eKPrGxB1Kzc

and we already know about the tuned symphony and crystal............

 author=MileHigh link=topic=8341.msg476359#msg476359 date=1457098312]

MileHigh

Well, it's another irony because I haven't opened a book about electronics in more than 30 years and you have been experimenting for 6+ years and you seemingly still haven't grasped the concept of when a capacitance is significant and when it's not significant when you want to figure out how a given circuit works.  What's worse, is that you are willfully ignoring my advice about that.

Im not ignoring you MH, im just saying your wrong.
What about parasitic capacitance which resonates with the inductance ? . I know the value maybe small,but at high frequencies at these low power levels,it plays a big part in how the circuit will operate. A series LR circuit without capacitance, is only an idealization. In the real world,the fact is that as you increase the applied frequency you reach a point where there is a small capacitance between the individual windings of the inductor whose reactance becomes significant at these low power levels. Now it is no longer an RL circuit and we can get resonance.

Your whole line about experiments vs. books with respect to me is phony, it's a crutch that you use to stick to your own unique way of thinking, and sometimes that thinking is completely off the wall.  "Books plus bench" is the way you should be thinking.

MH,i dont read books as such,as all my research is via the internet--same thing i guess.
But if we restrick our self to what is yesterdays new's,then we will never get any further ahead than we are now. The only way forward is in the new discoveries--and those you will not find in the books of yesty year.

I am working with the team by challenging you guys to think instead of just blindly "pushing forward."

But your not working with us MH,you are against anything that includes an increase in efficiency due to resonance. You say !blindly! pushing forward,and we say experimentation.

 

Look at the example of the variable base resistor for the Joule Thief.  I challenged you and asked you why it was supposedly needed and you had nothing to say.

I dont use resistors if i can help it MH,as they just burn of power as waste heat. I try and design the system to operate without them,and keep resistive losses at a minimum.

I could cover that issue on paper from A to Z.  Likewise, I could go on a bench to investigate the issue from A to Z and state definitively and comprehensively about the requirement, or lack of a requirement, for a variable base resistor for the Joule Thief under test.

And i would work on the bench designing a circuit that has the least amount of resistance as possible.

Here is another way I am helping the team:  I am asking them to state what a "resonant Joule Thief" is and how it is supposed to operate.  So that's why the wine glass is interesting.  It makes everybody think.  For six or more years people have been talking about resonance, and when the subject of one of the most common and basic resonant devices is brought up there are unanswered questions and blank stares.

So what questions in regard to the wine glass did i have wrong?
I told you the easy way to find the resonant frequency of a wine glass,using a microphone and scope.
I told you how to get a wine glass to resonate.
And i told you what resonance is.

I have a lot of direct experience, and an education.  I remember most of my direct experience.  Don't pretend that I don't have any direct experience as a way to try to dismiss what I am saying to you.

MH,i know you have the smarts,but i have some myself you know.
I cant dismiss anything you have said toward the resonant questions MH,as you say you need 4 to 8 weeks to present them,when the rest of us here are expected to answer your questions straight away.


Brad

Brad:

Evey time I have stated that the capacitance in a given circuit is insignificant and should be ignored you have fought back with willful ignorance.

Well that depends on the freq of operation of the circuit. If the book on power supplies tells us to operate our inductors or transformers at freq in a range of 10 times below or lower the natural RESONANT freq(determined by the inductor/transformer internal capacitance and inductance) of the inductor/transformer, and not even a lower multiple of that freq, then apparently if we did operate at, or a multiple of that resonant freq, then that capacitance is not insignificant any longer.

Mags