To people interest in  Nichelson documents refered by jbignes5 the links :

https://onedrive.live.com/redir?resid=E5A6FA1D7F4103D6!186&authkey=!ADHPMrYv4jfiYgE&ithint=file%2cpdf

https://onedrive.live.com/redir?resid=E5A6FA1D7F4103D6!182&authkey=!ACMuj1L6gcNOvio&ithint=file%2cpdf

https://onedrive.live.com/redir?resid=E5A6FA1D7F4103D6!180&authkey=!AK1NOVOgDBhgoaU&ithint=file%2cpdf

I feel like this investigation was fairly short lived considering the encouragement from a certain few individuals regarding this concept.  I'm still working on this as I don't think this investigation of bifilar coils has been fully vetted.

As you know,it was looked into deeper at OUR.

I spent weeks and dollars on this,and the only difference i found,was a reduction in resonant frequency of the BPC.

The added capacitance also reduced the time the current flow through the coil hit it's peak,but we are talking only uS here,when the two coils are driven at the same frequency.

Both the BPC and single wound PC both have CEMF--that is just something you cannot get rid of in an inductor--and why would you want to?.

Without CEMF,the current would rise to it's maximum value instantly.
This means you have no control over when and where on the current curve you can switch off the current flow.
Imagine how much excess heat would be created by the inductor.
Imagine no CEMF in your electric drill motor,where the drill would draw maximum current(stall current),even if you were not drilling anything.

How about a generator with no CEMF 
No CEMF= no output from the generator.

jbignes5 said my experiments had nothing to do with this topic-passing a magnet passed a coil.

Well if he had of been paying attention,then he would see what it has to do with CEMF--the very thing he is trying to eliminate.

How many times now have we seen the self acclaimed Tesla ex/spurts come in here,and try and tell us all how it's done,and what needs to happen?.
Then  the good old !resonant joule thief! pop's up,and off the Tesla fans go.

So,we either carry out the experiments our selves,and get the correct answer's,or we listen to lost of !double speak! 


Brad

 author=antijon link=topic=17297.msg507911#msg507911 date=1499175665]
 

I really don't understand the argument about the JT though. I'm pretty sure the OP just included it in the title because he thinks increasing frequency gives OU.

So if were talking about the JT,what has bifilar coils and Tesla got to do with it?

If a high power electromagnet is needed, it suffers from high reactance which reduces the magnetic force.

No it dose not.

Decreasing the resonant frequency" is the same as saying - reducing the inductive reactance,which is also the same as saying - reducing the counter emf

There are a number of things that can cause a reduction in resonant frequency-higher winding capacitance for instance 
And what happens when you reduce the counter EMF ?

Increasing the capacitance, or lowering the resonant frequency, increases the power transferred to the magnetic field.

No it doesn't.
It increases the displacement current between windings,and this creates more waste heat.

I have to agree with Jbignes regarding bifilar coils.

You are welcome to believe who ever you choose.


Brad

Brad what are you talking about?

Of course a large electromagnet has high inductive reactance!

That depends on the electromagnets design,which would depend on it's inductance value.
We can design an electromagnet with a very strong magnetic field,but with low inductance value,or one with a strong magnetic field,but with a high inductance value.

A transformer with no load on the secondary is an electromagnet,

No it's not.
Get your self a transformer,power it up with the secondary either open or loaded,and see how much iron or steel you can pick up with it.
There is a big difference between an electromagnet and a transformer.
An electromagnet has an open magnetic path,where a transformer has a closed magnetic path.

and how strong do you think it's magnetic field is? It's not strong at all, because the field is equal to the power consumed by the coil, minus it's internal resistance.

Once again,that all comes down to the design of the electromagnet,and the field strength is not only due to the amount of current flowing through it.

The Tesla BPC is one of the worst electromagnet designs out there.
A single wound coil around a core is far more efficient as an electromagnet.

I don't know if you're arguing for the sake of it or if you're being serious.

Im being dead serious.
You build your best Tesla BPC electromagnet,and i'll build a normal single wound electromagnet.
We will then both drive those electromagnets with an AC,and see who can lift the most weight with the least amount of power.

So lets both put our money where our mouth is-so to speak.


Brad

@Milehigh,
This is in response to your PM.  I never said anything about a series configured bifilar coil.  Those are your words.  As was before, as is right now, I will continue to investigate this despite your discouragement.


Dave

Thanks for responding to him in public. I just went through a week or so of his crap in pm. Your post is in agreement of my arguments against him. We had about a 7 member audience which he pm chained earlier, so this round I included Stefan. One of my complaints was that he discourages people here from doing things that we are suppose to be doing here.. He denied it, but here we go again. More evidence. 

If it continues I suggest that anyone that gets these pms from him report them to Stefan.     He is on moderation for his garbage and he thinks he has a right to continue his deeds in pm attacks. We dont need his negative bias here any longer.  Something wrong with that guy.

Mags

Thanks for responding to him in public. I just went through a week or so of his crap in pm. Your post is in agreement of my arguments against him. We had about a 7 member audience which he pm chained earlier, so this round I included Stefan. One of my complaints was that he discourages people here from doing things that we are suppose to be doing here.. He denied it, but here we go again. More evidence. 

If it continues I suggest that anyone that gets these pms from him report them to Stefan.     He is on moderation for his garbage and he thinks he has a right to continue his deeds in pm attacks. We dont need his negative bias here any longer.  Something wrong with that guy.

Mags

Yeah, I was about to respond to him on his last PM but realized that I was wasting my time as there is always a rebuttal to any response that was preceded by the attack.  I just like to suggest my direction and hope I can disappear back to the lab with maybe some curious exchange in between with fellow members of the forum. But I have on multiple occasions felt assaulted for my curiosity into the direction of bifilar coils by Milehigh. 


My official testimony.


Dave

"But I have on multiple occasions felt assaulted for my curiosity into the direction of bifilar coils by Milehigh. 


My official testimony."

lol. Isnt it funny?  Of all the things that are fake and useless, he seems to pound on any mention of bifi coils with the most intent of discouragement.   

Keep looking and keep experimenting. 

Mags

Good advice Mags.


Brad

Look up ferroresonant transformers.  The ferroresonant transformer is probably older than you are.