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Author Topic: How do I test for resonance  (Read 14927 times)

Tesluh

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How do I test for resonance
« on: October 08, 2016, 09:15:19 PM »
I am doing what I can to make a Don Smith style device, There is a lot of grey area as far as how to make the primary coil and how to get it "into resonance".  I have one that is powered up and appears to be resonating a secondary coil pair, each half is 4 times my primary wire length. the nst is working and the spark gap is nice and quiet.  I have 39.5" of 10 ga multi strand wire wrapped around a 2" acrylic tube, and 2 lengths of 16 ga solid copper wire wound 16 times at a 3" diameter.

My questions,
how do I determine what frequency the nst is producing?
how can I test to see that the coil I am trying to "bring into resonance" has been "brought into resonance"?

there are a lot of youtube videos that are very vague about how to test something like this...
Any help is appreciated!

Bob Smith

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Re: How do I test for resonance
« Reply #1 on: October 09, 2016, 06:17:10 AM »
Do you have a scope? You should be able to notice the difference in the wave form when it hits its resonant frequency.

lancaIV

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Re: How do I test for resonance
« Reply #2 on: October 09, 2016, 10:39:03 AM »
 "How do I test for resonance" 


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                                                                    GRA'L                 L/R and/or R/L


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Paul-R

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Re: How do I test for resonance
« Reply #3 on: October 09, 2016, 05:00:43 PM »
... how to make the primary coil and how to get it "into resonance".
I'm not too sure about this but you could look into grid dip oscillators used for RF.

https://en.wikipedia.org/wiki/Grid_dip_oscillator

Tesluh

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Re: How do I test for resonance
« Reply #4 on: October 09, 2016, 08:18:58 PM »
I'm not too sure about this but you could look into grid dip oscillators used for RF.

https://en.wikipedia.org/wiki/Grid_dip_oscillator
That looks like a handy instrument, will look at those, the ones I found so far are only MHz and I think I need them to be kHz range.  that might be an easy way to do it.

Bob, I don't have a scope but could and should get one.  Could you walk me through connecting and testing?  The nst looks like it could easily fry an oscilloscope if not connected correctly, Would I connect the scope somewhere directly on the circuit?

Thank you!

lancaIV

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Re: How do I test for resonance
« Reply #5 on: October 09, 2016, 09:00:19 PM »
That looks like a handy instrument, will look at those, the ones I found so far are only MHz and I think I need them to be kHz range.  that might be an easy way to do it.

Bob, I don't have a scope but could and should get one.  Could you walk me through connecting and testing?  The nst looks like it could easily fry an oscilloscope if not connected correctly, Would I connect the scope somewhere directly on the circuit?

Thank you!


Your knowledge spectrum to become worked out :
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Regard
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Tesluh

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Re: How do I test for resonance
« Reply #6 on: October 10, 2016, 03:18:12 AM »
Anyhow, If Bob or anyone else can help me tune a coil "into resonance" using an oscilloscope or whatever device I need to find, I would be appreciative.  If it leads me to figuring out how to build a Don Smith device that works the way he said it would, I will share with this forum.  Many hundreds have tried and I think the reason many have failed is that they never got both coils truly into resonance.  That and there are so many different schematics and recommendations that to sift through them all and come up with one that actually functions both primary side and secondary, would be a miracle.

citfta

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Re: How do I test for resonance
« Reply #7 on: October 10, 2016, 04:30:25 AM »
I don't want to be the bearer of bad news but if you actually get a Don Smith device to work that would truly be a miracle.  As far as I am aware he never showed an actual working device where you could see the circuit and parts.  I have worked in electronics for over 50 years and I watched some of the videos of Don.  Don used a lot of technical terms that he either was intentionally misusing or did not understand their actual meaning.  He also did not have any understanding at all about how to tune a circuit to resonance.  He said in one of the videos I saw that you can use the nomograph chart from the ARRL Amateur Radio operators handbook to tune a transformer to resonance.  He clearly did not have the least understanding how to use that chart.  He claimed you could tune the transformer by putting a proper value resistor across the primary.  That absolutely will NOT change the resonant frequency of the transformer.  It will only change the Q value of the transformer.  Tuning a circuit to resonance can be done a couple of ways.  If you don't care about the frequency then you can adjust the frequency until the circuit goes into resonance.  If you want the circuit to resonate at a particular frequency then you have to adjust either the capacitance or the inductance of the circuit until you reach resonance.  If you are tuning a parallel resonant circuit when you reach resonance the current going into the circuit will drop to a minimum value.  If you are tuning a series resonant circuit then the current will go to a peak value when the circuit is in resonance.  As someone has already posted a grid dip meter and a scope are your two best tools for finding the resonant frequency of a circuit.  A frequency counter and a function generator are also useful tools for working with resonant circuits.  If you are serious about wanting to work in electronics then you need to get a copy of the ARRL Amateur Radio operators handbook and start studying so you can better understand what you are doing.  You will also be better equipped to recognize when someone is just using a bunch to technical terms to impress even when they don't know what they mean.  You can find some nice used copies of the book on Ebay.  It starts out with the very basics and goes almost up to engineering level of electronics.  It is a very easy to understand book as it is written for those with no technical background.

Sorry for such a long post but I see so many people wasting so much time on trying to get any of Don's devices to work.  They could be spending their time and money on other projects that show much better results.

Respectfully.
Carroll

lancaIV

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Re: How do I test for resonance
« Reply #8 on: October 10, 2016, 05:51:08 AM »
I don't want to be the bearer of bad news but if you actually get a Don Smith device to work that would truly be a miracle.  As far as I am aware he never showed an actual working device where you could see the circuit and parts.  I have worked in electronics for over 50 years and I watched some of the videos of Don.  Don used a lot of technical terms that he either was intentionally misusing or did not understand their actual meaning.  He also did not have any understanding at all about how to tune a circuit to resonance.  He said in one of the videos I saw that you can use the nomograph chart from the ARRL Amateur Radio operators handbook to tune a transformer to resonance.  He clearly did not have the least understanding how to use that chart.  He claimed you could tune the transformer by putting a proper value resistor across the primary.  That absolutely will NOT change the resonant frequency of the transformer.




  It will only change the Q value of the transformer.
https://de.wikipedia.org/wiki/Lorentzkraft                                         nuclear force energy
https://de.wikipedia.org/wiki/Elektromagnetische_Maßeinheiten        how to tune/change formula 




 Tuning a circuit to resonance can be done a couple of ways.  If you don't care about the frequency then you can adjust the frequency until the circuit goes into resonance.  If you want the circuit to resonate at a particular frequency then you have to adjust either the capacitance or the inductance of the circuit until you reach resonance.  If you are tuning a parallel resonant circuit when you reach resonance the current going into the circuit will drop to a minimum value.  If you are tuning a series resonant circuit then the current will go to a peak value when the circuit is in resonance.  As someone has already posted a grid dip meter and a scope are your two best tools for finding the resonant frequency of a circuit.  A frequency counter and a function generator are also useful tools for working with resonant circuits.  If you are serious about wanting to work in electronics then you need to get a copy of the ARRL Amateur Radio operators handbook and start studying so you can better understand what you are doing.  You will also be better equipped to recognize when someone is just using a bunch to technical terms to impress even when they don't know what they mean.  You can find some nice used copies of the book on Ebay.  It starts out with the very basics and goes almost up to engineering level of electronics.  It is a very easy to understand book as it is written for those with no technical background.

Sorry for such a long post but I see so many people wasting so much time on trying to get any of Don's devices to work.  They could be spending their time and money on other projects that show much better results.

Respectfully.
Carroll

Tesluh

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Re: How do I test for resonance
« Reply #9 on: October 10, 2016, 03:09:18 PM »
I believe in miracles!  (but I also believe the people who tried to copy dons devices were doing many things wrong which added up to most of them not working.)

citfta

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Re: How do I test for resonance
« Reply #10 on: October 10, 2016, 04:53:09 PM »
I believe in miracles!  (but I also believe the people who tried to copy dons devices were doing many things wrong which added up to most of them not working.)

I don't want to  be argumentative about Don's work but you posted most of them don't work.  Can you show my just one that does work?  I have not seen any that even claim to work.

Respectfully,
Carroll

Tesluh

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Re: How do I test for resonance
« Reply #11 on: October 10, 2016, 05:58:10 PM »
https://www.youtube.com/watch?v=evymdn4LC2A

This guy seems to be close, "zilano" and "dynatron" are internet names of people who seem to have found the way to make dons principles work.  I do not have a video of a device of dons convincingly doing as he says "the 8000v 20a battery that never runs down".  If you search for "Zilano don smith" it turns up a lot of information, Zilano seems to be the expert on this device.

citfta

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Re: How do I test for resonance
« Reply #12 on: October 10, 2016, 06:07:33 PM »
I am familiar with Zilano's claims.  Believing in miracles is fine.  Believing in fairy tales is not too wise.

I gave you some information about how to tune for resonance and how to tell if you had gotten a circuit into resonance.  What you do with that information is of course entirely up to you.  I won't waste anymore of your time or mine discussing whether the Don Smith device was real or not.  You will eventually find out for your self that you are wasting your time and efforts on a device that doesn't do what it is claimed it can do.

Respectfully,
Carroll

Tesluh

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Re: How do I test for resonance
« Reply #13 on: October 10, 2016, 06:33:25 PM »
I'm sure the wright brothers were given the same cautionary tale...I've heard it at least a hundred times myself.  What they did differently is what made their invention work.  Can use what others like tesla or don or zilano have learned but until you get out in the workshop it's all just theory.  I appreciate the resonance advice I think don adding a capacitor was to change the capacitance of the coil to bring it to resonance. Need to get some tools and that book you mention sounds like good reading if I am going to be tinkering in this arena.   

lancaIV

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Re: How do I test for resonance
« Reply #14 on: October 10, 2016, 09:17:23 PM »
I'm sure the wright brothers were given the same cautionary tale...I've heard it at least a hundred times myself.  What they did differently is what made their invention work.  Can use what others like tesla or don or zilano have learned but until you get out in the workshop it's all just theory.  I appreciate the resonance advice I think don adding a capacitor was to change the capacitance of the coil to bring it to resonance. Need to get some tools and that book you mention sounds like good reading if I am going to be tinkering in this arena.   


Hello Tesluh Inever heared from "wright brothers" and their cautionary tales
but I have heared about 'Wright brothers' and their trial to get something like a plane to fly and
they have had help : by their innovative sister ! Wright brothers and sister


What is the male and what is the female part in all the energy converting devices,with or without the transgender sexus ?


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anti-matter : l/r or r/l and cw or ccw !?  matter: r/l or l/r and ccw or cw !?


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