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Author Topic: Experiments On The Bifilar Coils Ability To Take In Electrical Impulses  (Read 14541 times)

Magluvin

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Re: Experiments On The Bifilar Coils Ability To Take In Electrical Impulses
« Reply #15 on: March 07, 2018, 10:02:43 AM »
Glad you forgot to charge your bike.  :P
Nice straight forward presentation. Interesting results. Thanks for sharing. ;)
Cheers

Thanks.  Me too really.  Sometimes when things seem to fall apart, other things start to come together.

Mags

tinman

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Re: Experiments On The Bifilar Coils Ability To Take In Electrical Impulses
« Reply #16 on: March 07, 2018, 10:49:54 AM »
I was ready to go home and found I forgot to charge my bike.  So I went back to the bench an fiddled.  I made some changes that solved an issue or 2.

I changed the pickup coil to the coil I was using as the kicker. The other coil was the reason for the blobbing and the lower chop in the bifi and the crap really screwing with the single coil with the cap. So that is solved. And using the large inductor for the kicker got rid of the interaction of the kicker coil and the test coils., at least as far as I can see.  It all came together in a short period of time. Speaking of time, Im not going nowhere for a bit so I did a vid of what I found that shows some significant differences between the bifi coil and the normal coil with a capacitor, tuned as close as possible to the bifi resonant freq.

I cover the push button switch also.

https://youtu.be/bu6aNl6AL5I

Mags

Well Mag's,you were right,and i was wrong--the single wound coil dose impede the current flow much more than that of the bifi coil,as shown in your video.

I also admit to not seeing a test such as the one you have carried out.

Good job all round Mags.


Brad
« Last Edit: March 09, 2018, 12:15:31 AM by tinman »

Belfior

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Re: Experiments On The Bifilar Coils Ability To Take In Electrical Impulses
« Reply #17 on: March 07, 2018, 11:49:31 AM »
Hmm so the ringing is longer and the freq stays the same with the bifi? Solenoid with cap dampens the wave quickly and also the freq changes?

Belfior

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Re: Experiments On The Bifilar Coils Ability To Take In Electrical Impulses
« Reply #18 on: March 07, 2018, 12:07:17 PM »
Aaand the resonant freq should be easy to calculate from RLC resonant formula

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

and what Tesla was saying that is the freq that makes to coil have just ohmic resistance?

synchro1

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Re: Experiments On The Bifilar Coils Ability To Take In Electrical Impulses
« Reply #19 on: March 09, 2018, 12:11:23 AM »
Quote from article by John Bedini:

"Through successive experimental arrangements, Tesla discovered several facts concerning the production of his effect. First, the cause was undoubtedly found in the abruptness of charging. It was in the switch closure, the very instant of "closure and break", which thrust the effect out into space. The effect was definitely related to time, IMPULSE time".


Look at the difference the quick release or thumbnail "Switch flick" makes on Magluvin's scope shots.

Magluvin

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Re: Experiments On The Bifilar Coils Ability To Take In Electrical Impulses
« Reply #20 on: March 09, 2018, 03:55:15 AM »
Quote from article by John Bedini:

"Through successive experimental arrangements, Tesla discovered several facts concerning the production of his effect. First, the cause was undoubtedly found in the abruptness of charging. It was in the switch closure, the very instant of "closure and break", which thrust the effect out into space. The effect was definitely related to time, IMPULSE time".


Look at the difference the quick release or thumbnail "Switch flick" makes on Magluvin's scope shots.

The key to my switching was the speed of the disconnect.  Even though the magnetic field collapse currents seem to be very short pulses or as we say spikes, there is a time period for the voltage of the coil to reach peek if we look close enough. Also peak voltage of the field collapse currents that develops the voltage spike when the input voltage is low, will also be lower.  So I had a better chance at the speed of the switch opening before the coils spike could breach the space between the switch contacts. The switch opens the contacts about 1/16in..  Now we have even a harder time with that using reed switches as the distance between the contacts when open is very small. Even my 2in reeds looks to possibly be less than 1/64in and i cant even come up with a number for a small reed contact spacing. Its much closer. So the speed of contacts opening wont help much.

Gotta be careful with the reed switches in high speed pulse motors. The reeds have a resonant freq specification.  In one of my vids I demonstrate this. It can fool you into thinking you may have a speedup condition once the speed breaches past the resonant freq of the reed switch. I had I believe 2 levels of harmonics of the reed during that one run. So it seemed to peek out in rpm and then it hit the gas on its own and then the next leveling out of the rpm and then another speedup, and then once more. May have gone further if I had sped up the rotor with an outside influence like an air hose or air brush gun setup.

Mags

Magluvin

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Re: Experiments On The Bifilar Coils Ability To Take In Electrical Impulses
« Reply #21 on: March 09, 2018, 04:15:14 AM »
Tonight Im going to setup a cmos 555 timer to drive my mosfet transistor.  Like I had use back in my Orbonbon solid state orbo days but a bit more precision on the freq and duty adjustments than I had then.  For the freq ranges I need for these coils it should suffice for now. 

So possibly Ill be able to try some things over the next couple days and see what we see..   I have a few more things i want to do with the setup i have before i replace the manual switch.

Mags

sm0ky2

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Re: Experiments On The Bifilar Coils Ability To Take In Electrical Impulses
« Reply #22 on: March 09, 2018, 07:14:15 PM »
555 maxes out around 2 MHz,
that puts the coil length close to 491ft 9.5in (total)
slight adjustment for impedance,
a 500ft roll should be within range of the device
ideally, 2x 500 foot rolls, to form the bifilar


voltage is a factor of the #of turns
so adjust this by increasing the diameter


you’ll know when you hit the spot
amplitude peaks of the waveform will max out
current draw at the input will minimize
and the magnetic field will contain itself
almost completely inside the wire
(some believe it goes away, but not really)
if you have a very sensitive scope, that can see the tiny spikes and whatnot,
the signal will clean up near the frequency and relevant nodes.


if/when output is > than input, you know you are absorbing energy
at that frequency (now find the source)


if not, make a new coil of different length
find That freq. and try again


It’s easier to identify a source first, an design the coil from there
with a 555, you are looking for sources below 2MHz
which means really long wires
(60Hz would be 3100 miles or something ridiculous)
we can, of course sacrifice efficiency of harvesting
and use 1/4, 1/16 of our length


The LMK61E07 will allow for smaller test coils
and higher frequency sources


Astronomy databases have publicly available data of frequencies emitted by near stellar entities.
Including our star


And there is the Terrestrial frequency of which we won’t get into here
as that has been extensively covered in another topic.








citfta

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Re: Experiments On The Bifilar Coils Ability To Take In Electrical Impulses
« Reply #23 on: March 09, 2018, 09:59:15 PM »
Tonight Im going to setup a cmos 555 timer to drive my mosfet transistor.  Like I had use back in my Orbonbon solid state orbo days but a bit more precision on the freq and duty adjustments than I had then.  For the freq ranges I need for these coils it should suffice for now. 

So possibly Ill be able to try some things over the next couple days and see what we see..   I have a few more things i want to do with the setup i have before i replace the manual switch.

Mags

Hi Mags,

If I may make a suggestion.  Get you one of these little guys:  https://www.ebay.com/itm/UDB1005S-Function-Signal-Generator-Source-Frequency-Counter-DDS-Module-Wave-5MHz/321418276142?epid=1553406130&hash=item4ad605ad2e:g:C3UAAOxypthRwmPJ

I have a slightly older version that only goes to 2 Mhz but it has been rock solid for the past few years I have used it.  It allows you to make much more precise adjustments than you could ever get with a 555 timer circuit.  It will give you sine, square and triangle wave shapes with  1% to 99% on time for the square wave signal and bias offset also.  Very handy little tool for the price.  It can also be used as a frequency counter but I have never tried that function but assume it would also work as well as the other functions.  If you don't mind waiting you can also get them direct from China for a few dollars less.

Good luck on your testing.
Carroll

Magluvin

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Re: Experiments On The Bifilar Coils Ability To Take In Electrical Impulses
« Reply #24 on: March 09, 2018, 11:40:31 PM »
Hi Mags,

If I may make a suggestion.  Get you one of these little guys:  https://www.ebay.com/itm/UDB1005S-Function-Signal-Generator-Source-Frequency-Counter-DDS-Module-Wave-5MHz/321418276142?epid=1553406130&hash=item4ad605ad2e:g:C3UAAOxypthRwmPJ

I have a slightly older version that only goes to 2 Mhz but it has been rock solid for the past few years I have used it.  It allows you to make much more precise adjustments than you could ever get with a 555 timer circuit.  It will give you sine, square and triangle wave shapes with  1% to 99% on time for the square wave signal and bias offset also.  Very handy little tool for the price.  It can also be used as a frequency counter but I have never tried that function but assume it would also work as well as the other functions.  If you don't mind waiting you can also get them direct from China for a few dollars less.

Good luck on your testing.
Carroll

Thanks. Was looking at some more expensive ones a while back and i just got into too much work and getting one was delayed.

Im still putting the 555 timer together for one shot tests for now. Multiple shots wont build into anything bigger if I couple and load as Brad did. For now the kicker inductor is large. 313mh 46ohm.  The transistor just needs to stay on for a period of time and off for a period of time. Just to satisfy others with clean switching.

But, multiple pulses, at the right timing may get the bifi to build as it gets kicked.  If it can get kicked into a growing wave, then the one shot or as Brad has shown may become insignificant.  Say if the bifi can be grown then use loose coupling to pull off the built output mag fields that may be much greater than the single shots or tight timing that doesnt allow for the bifi to oscillate as it is cut off during the next kick, or im my case, not kicked repeatedly to see if it might grow.

Have come up with a couple new things to try also.  Gotta git. Hungry.

Mags
« Last Edit: March 10, 2018, 04:09:36 AM by Magluvin »

AlienGrey

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Re: Experiments On The Bifilar Coils Ability To Take In Electrical Impulses
« Reply #25 on: March 11, 2018, 03:19:54 PM »
Tonight Im going to setup a cmos 555 timer to drive my mosfet transistor.  Like I had use back in my Orbonbon solid state orbo days but a bit more precision on the freq and duty adjustments than I had then.  For the freq ranges I need for these coils it should suffice for now. 

So possibly Ill be able to try some things over the next couple days and see what we see..   I have a few more things i want to do with the setup i have before i replace the manual switch.

Mags
Mr Mag luvin. Alien Grey here  ;D

Noticed your playing with cmos555 did you know you can now get a 2Mhz device it works at well over that !  I used a batch of 5 to play with I was wondering what circuit you used as the standard layout can slow it down, If your interested  I used a LMC555
 and a UCC27321 but the later driver does not do it justice and it needs a faster device it was a struggle just to get 10nano secs out of it as it loses attenuation, but then I suppose it depends on other things.

PS 74HC is just too slow.
Allen Grey

Magluvin

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Re: Experiments On The Bifilar Coils Ability To Take In Electrical Impulses
« Reply #26 on: March 11, 2018, 06:17:59 PM »
Mr Mag luvin. Alien Grey here  ;D

Noticed your playing with cmos555 did you know you can now get a 2Mhz device it works at well over that !  I used a batch of 5 to play with I was wondering what circuit you used as the standard layout can slow it down, If your interested  I used a LMC555
 and a UCC27321 but the later driver does not do it justice and it needs a faster device it was a struggle just to get 10nano secs out of it as it loses attenuation, but then I suppose it depends on other things.

PS 74HC is just too slow.
Allen Grey

The cmos im using is 3mhz max.  See, there will be an on time for the kicker inductor to build its field. Its large, 313mh. And, the bifi rings around 12khz. Im not looking to use this like brad had his, which seemed to be more of a switching supply sort of timing scheme, of which, what was it, 500hz he said he used for timing?  His coils were 1.1mh.  Dont know what they measure with the core alone, nor do we know what the inductance is when the pickup coil is loaded. We dont even know what his pickup coil specs are.   But if the coils are still very low inductance in the cases i stated above, Im not sure i see 500hz timing to be high enough to show what he had shown for sure. My coil rings at 12k and is 35.7mh vs his 1.1mh with timing of 500hz?? Id expect some high freq ringing going on in his, of which i did not see.  So its hard to say what is what with his vid, for me anyway. Searching for some suitable variable resistors in my project cabinet today.

Im looking again at hanteks function gen.  Didnt get great theoretical reviews from some here on that back when I was looking at it, let alone the 555 timer now.  But I think the hantek will do me just fine for all of 'my' needs

Im just putting together the 555 for some one shot timings, because of the complaints that my push button is unsatisfactory to them.

Just bought a car, so it will be a week or 2 before i can order the hantek. Going over whether i want the hantek combo scope/gen of just the premium fg model

Mags

Have a job this weekend building a custom subwoofer box. May have some time tonight to get back into this