Re-Inventing The Wheel-Part1-Clemente_Figuera

[Ufopolitics]

You say my 12 volt is too small. So if I jack it up to your 36volt level
total power consumption would go up also, from 144 watts to 432 watts.
What we're trying to do here is to increase our output power and not increase the input power.
So maybe what you mean is I should jack up my voltage to 36volts and cut my maximum amperage down to 4 amps to give me the same input power. So goodbye to a strongly changing magnetic field.
You are saying the voltage is too low to be able to move the magnetic field around. Well wherever did you read that a higher voltage will move a magnetic field. I'd like to see that article.

Hello Elcheapo,

Cheer up friend, life is beautiful...

What I was trying to say is to BALANCE Volts versus Amperage, exactly as you have said on the above bold out part.

You are wrong as not having a strong field anymore if you cut amperage and increase voltage, let me example that:

In a 4400 Watts small Home Generator, the required Exciting Field must be around the 400 Watts...

HOWEVER, the way Wattage is disbursed is: 175V and 2-2.5 Amps.

And above fact is understandable because this exciting DC field runs ON AT ALL TIME during Operation, so Coil is built with fine wire (like 26-28 awg) and a whole of Amp-Turns, where resistance is around 65 ohms.

On Figuera concept, since we are switching the field to Hi-Lo, then we can afford a lower Voltage from the 175V and a bit higher amperage...just balancing out in order not to have too much impedance so it does not affect fast pulsing.

For example, I have consistently used 386 feet of 16 awg wrapped into many different coil geometries as the exciter part and that allows me to pulse-supply up to 50V and like from 1 to 4 amps max. And this is for testing purposes only, so, do not mean it would be the final device.

Your concept of voltage is out of kilter. Voltage is a pressure, as you say
but it only serves to get amperage up to your required level, no more.
There are circuits of course that require HV operation, but this is not one of them.
A strong magnetic field is totally dependent on higher amperage only. The voltage is there only to get that higher amperage and no more.

Sorry about that...but I disagree above...

Voltage and Amperage must be BALANCED OUT for every different application...

In our Figuera case, we need a very well balanced Power (Watts) and that directly relates to the type of coil configuration(understand basically wire gauge plus number of Amp-Turns) we are using.

Let me example that...

You have one gallon of water (One Amp) to run at a 386 feet pipe line and in order to get from one end to the other...you apply One PSI of pressure...what happens?...nothing...water will move but will never reach the end...much less if we wrap that line into a coil serpentine shape.

I applied your "ratio" of 1:1 based on 12 Amps and 12 Volts...But based on 1 unit.

And yes you're right when saying that varying the resistance on your setup
will vary the voltage as well as the amps.

Exactly, and if you remember on Buforn He mentioned 100V and 1 amp ratio...And I am pretty sure when Figuera was talking about "currents" he was referring to BOTH...Volts and Amps as One Flow together.

You say "If magnetic fields change there would be induction emf at output."

No, you're wrong on that as I've already tried it on my circuit.

I am pretty sure there should be some induction there...very small because of the way you are doing it...but there MUST BE some flow...millivolts-milliamps...but some.

And that "change" is not the only dependent aspect to generate EMF Induction...but also based on the "Rate of that Change" (interpret it as repetitions of that change)

I have a 20 amp meter in series with the main 12 volt line and when set up for 12 amps there is no variation whatsoever on the meter. A volt-meter
shows no variation as well. Tried 60hz and 400hz: same thing.
And that is why my output coil shows zero volts.

Try to read it by "portions" (nodes) of the circuit and not just from the main source, example:

Try putting an amp and a volt meters on each one of the Exciter Coils, then it should read the ALTERNATING changes (In Voltage and Amperage) taking place there when you start switching...or the two Scope Probes while running. If there are no changes...then that is why you are not getting any induction.

A couple of questions:
Do you believe that the total amperage between the 2 coils should always remain the same?

Again...why look at the TOTAL Amps or Voltage from PSU, when the ACTUAL CHANGE-FLUCTUATION of POWER is taking place between the two Exciting Coils?

You have a very small generating coil CORE of 0.75 In (3/4")...and if you build a too high DOUBLE VOLUME FIELDS with your LONGER Exciter Cores...this fluctuation will never be "seen" by the small length core...So I will try either a longer core and spread wire along...or simply and much easier...lower your power down until the Field becomes smaller in volume and it can travel from one extreme to the other of your 3/4 inch core.

Remember, you do not want the retractions and expansions of the two fields to get into their own exciter coils-cores...otherwise you will be sending this self induction back to your source.

Where do YOU think the extra energy is coming from.

Regards
Elcheapo

Wow...good question...But basing it on who we are here...we are builders, experimenters here and not tinkerers..or theorizers...

I know what the answer you would like is..."The Aether"...but that's too "general speaking"...

Extra Energy is coming from many places...we just have to make the right set up to process it.

The day that we all get to see that a Magnetic Field contains A SINGLE Flow Spin, which will NOT progress unless we MOVE it through SPACE/TIME coordinates...and that such Spin moved through S/T will IMPINGE an Electron Flow on any Conductor of wire, specially shaped ACCORDING to that Field VOLUMETRICAL DISPLACEMENT...then we will have Extra Energy in so many forms and shapes...that the whole picture will change rapidly.

First we must set this FIELD SPATIAL VOLUMETRICAL DISPLACEMENT CORRECTLY (like I told you above...to travel through your generating CORE properly)...And then....then it is just a matter to "REPEAT THE PROCESS" through TIME...Or as Faraday Law: INCREASING that RATE of CHANGE.

Resuming...it is GREAT to have a STEADY Output from Source...and just by swinging-playing with the fluctuations between two facing coils-cores...we get extra energy above what we are putting in, by increasing that rate of change.


Hope I have answered all your questions satisfactorily...as also I wanna read that you are having power out of your generating coils





Ufopolitics

[Elcheapo]

good find

To all:

Well I think maybe I've found a solution to my problem.
While going through some old postings, I found this #818 one by hanon saying:

"Basically this user is proposing to use also like poles facing each other (in repulsion) in the motionless 1902 patent. As the magnetic field crash in the central zone between electromagnets he suggests to place TWO induced coils. One at each side in order to capture all the magnetic lines which go to one and to the other side.

If you just use one induced coil the resulting induction will be NULL because one part of the coil is induced in the opposed direction to the other part."

That sounds exactly like my situation. Thanks to hanon as a very good find.
Unfortunately, I blew a couple of my mosfets by wrongly setting up the circuit, so I have to wait while I order some more to continue on and try using Two induced coils.

At my age of 84 my only real concern for energy is to be able to walk the 2 blocks to the post office and back.

But for all you young fellows and lurkers out there who want free energy, get busy and build a decent control circuit to try out the many dozens of ways to experiment with this thing.

Good luck to all.

Elcheapo

[Elcheapo]

Thanks Elcheapo,

That makes it clear the Unit config.




IMHO, I believe 12 Volts is too small pressure to fully drive such amp value. And what happens here is you get a very strong field(s), but incapable to move/displace around iron cores with enough spatial pressure(s).

I have written before about this scenario...if your resistance at coils is too low, amps got no problem to flow, BUT, Voltage remains also too low, field becomes almost static, because of no voltage pressure movement, due to almost no voltage difference between coils nodes or terminals.



If we alter resistance during operation, NOT only amps will fluctuate, but also voltage, tension...we could resume that as wattage (AmpsXVolts) at coil.



No matter what you do...If Magnetic Fields Changes...there would be induction EMF at Output.




Right now I have BOTH Coils for the Exciter built into one core, and they are Bifilar Wound (meaning no two separate facing coils/cores)...I am driving just ONE Field with just one square pulse to ONE of the Coil Circuits, while the second Field comes from a looped LC Tank with AC Caps...this mirrors the main exciting Field PLUS a Reversed Polarity Field...for the "price of one"...

I have also written that it is a must to have transient (spikes) currents from either one of the two Fields...and if I get protecting diodes...no induction -at all- takes place at output coils.

Even if you do not collapse field(s) by keeping positive feed at all time...whenever currents RAMPS DOWN ABRUPTLY, there would be a coil-field response-reaction of some sort of transient reversed spike.

Actually, these transient currents are the ones who actually reduce when output is loaded, on my set up, while almost no change at input from source, and that goes to V & A (Watts)

An interesting thing I have noticed on this tests...is that while no load, the exciting fields keep vibrating strongly according to frequency, and even with just ONE PULSE, I get sparks here...and as soon as I add a load...or short output circuit with amp meter to measure full amps at max surge...the whole thing stops vibrating and becomes almost a SOLID Magnetized assembly...no more vibrations....and Sparks reduce to almost zero.

Figuera did not have any Solid State electronics at his time...but a commutated brush between resistors...and that MUST HAVE DONE HIGH SPARKING...in between transitions...Sparks mean Spikes, reversed flows, and transient currents...it is simple...no sparks, no transients...no output.

Again, and as you wrote...This is my opinion and nothing more...and so I could be wrong...


Regards


Ufopolitics

You say my 12 volt is too small. So if I jack it up to your 36volt level
total power consumption would go up also, from 144 watts to 432 watts.
What we're trying to do here is to increase our output power and not increase the input power.
So maybe what you mean is I should jack up my voltage to 36volts and cut my maximum amperage down to 4 amps to give me the same input power. So goodbye to a strongly changing magnetic field.
You are saying the voltage is too low to be able to move the magnetic field around. Well wherever did you read that a higher voltage will move a magnetic field. I'd like to see that article.

Your concept of voltage is out of kilter. Voltage is a pressure, as you say
but it only serves to get amperage up to your required level, no more.
There are circuits of course that require HV operation, but this is not one of them.
A strong magnetic field is totally dependent on higher amperage only. The voltage is there only to get that higher amperage and no more.

And yes you're right when saying that varying the resistance on your setup
will vary the voltage as well as the amps.
You say "If magnetic fields change there would be induction emf at output."

No, you're wrong on that as I've already tried it on my circuit.
I have a 20 amp meter in series with the main 12 volt line and when set up for 12 amps there is no variation whatsoever on the meter. A volt-meter
shows no variation as well. Tried 60hz and 400hz: same thing.
And that is why my output coil shows zero volts.

A couple of questions:
Do you believe that the total amperage between the 2 coils should always
remain the same?
Where do YOU think the extra energy is coming from.

Regards
Elcheapo

[Elcheapo]

aether

Well Elcheapo, That is disappointing. I had hopes that with your switching system we might see some evidence the Figuera device was real. But it appears there is more to it than meets the eye or maybe nothing at all.

I am guessing that you have tried it with other current values. I am wondering if the current was high enough to not allow the secondary to actually see any changes. Maybe a lower value like a total of 5 amps for the two primaries. Just a thought.

I still think your circuit is a great design and certainly worth keeping or at least knowing about. Fine job on it. Thanks for sharing.

Respectfully,
Carroll

Sorry to disappoint you carroll , but just look at it from the positive side.
With this circuit I have proven to myself (no one else) that I can get a strongly changing magnetic field without any lenz effect.
We all have to change our way of thinking as sometimes conventional
electronics just don't fit in with these new concepts.
We should be asking ourselves "where is this free energy coming from?"
Well in my humble opinion ALL electricity comes from the aether.
So now we just have to figure out a way for this magnetic field to induce
itself into the coil which will automatically access the aether like all electric generators do.
I am also working on another project called "vortexing the aether" where
they use 4 coils set up in a circle and pulse them individually clockwise
to get a rotating magnetic field.
Maybe this is all we need for this Figueras device.

Regards

Elcheapo

[Ufopolitics]

TO

UFO:

one unit consists of 6 components.

1 2n222 transistor
3 pc817 opto-couplers
2 500 ohm mini-pots

I have only 2 units drawn out to show how all the rest are connected to the mosfet gates.
It's only the transistors that have different connections to the 9 different
points of ic cd4028.

Thanks Elcheapo,

That makes it clear the Unit config.

`The total 12 amps uses only 12 volts.

IMHO, I believe 12 Volts is too small pressure to fully drive such amp value. And what happens here is you get a very strong field(s), but incapable to move/displace around iron cores with enough spatial pressure(s).

I have written before about this scenario...if your resistance at coils is too low, amps got no problem to flow, BUT, Voltage remains also too low, field becomes almost static, because of no voltage pressure movement, due to almost no voltage difference between coils nodes or terminals.

Ok on getting some output on your switching resistor device.
You have to consider the accuracy of all those resistors. You can't get the
same accuracy as you can by just adjusting a small pot.
I can get some output by just mis-adjusting the pots.

But I think that's because total amperage will then vary up & down and
and it's working as a xformer.

If we alter resistance during operation, NOT only amps will fluctuate, but also voltage, tension...we could resume that as wattage (AmpsXVolts) at coil.

For anyone who wants my honest opinion on this, here it is.
I think the fact that I'm getting zero output means the circuit is working the way it should.

Why?
Because the circuit is designed to have zero change in total amperage to the coils, meaning
zero change in output voltage as well.
You can't get an induced voltage when nothing changes.

No matter what you do...If Magnetic Fields Changes...there would be induction EMF at Output.

But because of figueras unique TWO coil configuration, the 2 solenoids still make ample flux.
The problem we are now faced with is 'How do we make use of all this flux?'
It's quite obvious that just placing a single coil within a changing magnetic field does nothing
when there's no change in amperage or voltage.
Figueras left much out of the picture, so let's see if we can remedy the situation.

Just my opinion and nothing more.


Regards

Elcheapo

Right now I have BOTH Coils for the Exciter built into one core, and they are Bifilar Wound (meaning no two separate facing coils/cores)...I am driving just ONE Field with just one square pulse to ONE of the Coil Circuits, while the second Field comes from a looped LC Tank with AC Caps...this mirrors the main exciting Field PLUS a Reversed Polarity Field...for the "price of one"...

I have also written that it is a must to have transient (spikes) currents from either one of the two Fields...and if I get protecting diodes...no induction -at all- takes place at output coils.

Even if you do not collapse field(s) by keeping positive feed at all time...whenever currents RAMPS DOWN ABRUPTLY, there would be a coil-field response-reaction of some sort of transient reversed spike.

Actually, these transient currents are the ones who actually reduce when output is loaded, on my set up, while almost no change at input from source, and that goes to V & A (Watts)

An interesting thing I have noticed on this tests...is that while no load, the exciting fields keep vibrating strongly according to frequency, and even with just ONE PULSE, I get sparks here...and as soon as I add a load...or short output circuit with amp meter to measure full amps at max surge...the whole thing stops vibrating and becomes almost a SOLID Magnetized assembly...no more vibrations....and Sparks reduce to almost zero.

Figuera did not have any Solid State electronics at his time...but a commutated brush between resistors...and that MUST HAVE DONE HIGH SPARKING...in between transitions...Sparks mean Spikes, reversed flows, and transient currents...it is simple...no sparks, no transients...no output.

Again, and as you wrote...This is my opinion and nothing more...and so I could be wrong...


Regards


Ufopolitics

[Elcheapo]

opinions

TO

UFO:

one unit consists of 6 components.

1 2n222 transistor
3 pc817 opto-couplers
2 500 ohm mini-pots

I have only 2 units drawn out to show how all the rest are connected to the mosfet gates.
It's only the transistors that have different connections to the 9 different
points of ic cd4028.
`The total 12 amps uses only 12 volts.

Ok on getting some output on your switching resistor device.
You have to consider the accuracy of all those resistors. You can't get the
same accuracy as you can by just adjusting a small pot.
I can get some output by just mis-adjusting the pots.

But I think that's because total amperage will then vary up & down and
and it's working as a xformer.

For anyone who wants my honest opinion on this, here it is.
I think the fact that I'm getting zero output means the circuit is working the way it should.

Why?
Because the circuit is designed to have zero change in total amperage to the coils, meaning
zero change in output voltage as well.
You can't get an induced voltage when nothing changes.
But because of figueras unique TWO coil configuration, the 2 solenoids still make ample flux.
The problem we are now faced with is 'How do we make use of all this flux?'
It's quite obvious that just placing a single coil within a changing magnetic field does nothing
when there's no change in amperage or voltage.
Figueras left much out of the picture, so let's see if we can remedy the situation.

Just my opinion and nothing more.


Regards

Elcheapo

[Ufopolitics]

To all:


UFO:

Hope the bigger image I posted for boguslaw clears things up.

Yes, thanks!...However, it would be great if you could define (with dotted lines) a "Unit"...

I mean, I see Unit 1 written next to the transistor 2N2222, you've said there are two units...so I do not see #2...then as it branches down...I see both FET's are combined feeding Gates from both IC's branches...

So, just a unit contour would do.

Thanks much, it indeed is a very useful circuit!!

As anyone can see, there are a lot of parts in this circuit. They can all be gotten from e-bay at very low prices.
So for anyone ambitious enough to wire one up you will need to know how it works, lots of fine soldering skills, trouble-shooting skills and lots of patience .
Before going through all that trouble, I think it only fair to give you my results first.
My 2 solenoid coils are each wound with 212 turns of #19awg.
The cores are 1.5in. Dia. 2.5in. long using soft iron welding rods with flux removed.
The pickup coil between the 2 poles is: .75 in. long and wound with 80 turns of #19. Core is also made with same rods cut to .75 in.long.

Typical pulse settings in amps are as follows.

Coils A: 8- 7.5 - 7- 6.5- 6 - 5.5- 5- 4.5- 4- (9 pulses)

Coils B: 4- 4.5 - 5- 5.5- 6 - 6.5- 7- 7.5- 8-

As coils A & B get pulsed at exactly the same time, notice that the total current sum is always 12 amps.

Results:nada, zilch

I've tried nn ss ns: I've tried turning the pickup coil 90 deg. With and without a core.

Still not even 1/2 a volt.

But the one good thing is a strongly changing magnetic field between the 2 poles.
I checked this with MM's paper clip on a straw method. With the solenoids spaced 1.25 in. apart
the clip would wobble through this 1.25 in. distance actually clicking on the metal cores in the process.
Maybe Figueras is hiding a few things, like using a better switching system to create a ROTATING magnetic field instead of just a static one.

I'm not the smartest guy in the world, so maybe I'm missing something.

Honestly, sorry to read that Elcheapo...

I have tested Figuera's Device with my rotary switch-resistors and a similar set up as you have (related to coils-cores arrangement/spec's)...and I did get voltage and amperage out based on the Fields Fluctuations.

I read amperage settings above...but not voltage...what is the Operating Voltage with those 12 Amps total?

Now, the things that I believe could be a "probable cause" why you are getting zero at output:

1- The Amps fluctuations being only by 0.5 decay-gain between stages, maybe too small which does NOT generate the required Field pressures changes through Space/Time...At operating speed/Frequency this 0.5 would be almost not noticeable...

I would try increasing it to one (1) amp difference.

The fact that a "very thin" paper clip shows a field displacement does not mean it can tell you if there is enough pressure (repulse field formed by the two fluctuations).

Try getting a Neo Cylinder (so you could grab it strongly with your hands by its South) aiming at the center solenoid (secondary) with its North facing towards the Invisible Changing NORTHS (N<>N)...then you would be able to feel its pressure PLUS Displacement.

2- Depending on your Voltage...You may not be building the required strong fields.

In my opinion, there is not that much Amperage required for such small cores and wire gauges...currently I am only using 1 to 2 amps Max...and up to 36 Volts, but then again...it is a different configuration. BUT, based on same principle.


Regards


Ufopolitics

[citfta]

Well Elcheapo, That is disappointing. I had hopes that with your switching system we might see some evidence the Figuera device was real. But it appears there is more to it than meets the eye or maybe nothing at all.

I am guessing that you have tried it with other current values. I am wondering if the current was high enough to not allow the secondary to actually see any changes. Maybe a lower value like a total of 5 amps for the two primaries. Just a thought.

I still think your circuit is a great design and certainly worth keeping or at least knowing about. Fine job on it. Thanks for sharing.

Respectfully,
Carroll

[Elcheapo]

results

To all:


UFO:

Hope the bigger image I posted for boguslaw clears things up.

As anyone can see, there are a lot of parts in this circuit. They can all be gotten from e-bay at very low prices.
So for anyone ambitious enough to wire one up you will need to know how it works, lots of fine soldering skills, trouble-shooting skills and lots of patience .
Before going through all that trouble, I think it only fair to give you my results first.
My 2 solenoid coils are each wound with 212 turns of #19awg.
The cores are 1.5in. Dia. 2.5in. long using soft iron welding rods with flux removed.
The pickup coil between the 2 poles is: .75 in. long and wound with 80 turns of #19. Core is also made with same rods cut to .75 in.long.

Typical pulse settings in amps are as follows.

Coils A: 8 7.5 7 6.5 6 5.5 5 4.5 4 (9 pulses)

Coils B: 4 4.5 5 5.5 6 6.5 7 7.5 8

As coils A & B get pulsed at exactly the same time, notice that the total current sum is always 12 amps.

Results:nada, zilch

I've tried nn ss ns: I've tried turning the pickup coil 90 deg. With and without a core.

Still not even 1/2 a volt.

But the one good thing is a strongly changing magnetic field between the 2 poles.
I checked this with MM's paper clip on a straw method. With the solenoids spaced 1.25 in. apart
the clip would wobble through this 1.25 in. distance actually clicking on the metal cores in the process.
Maybe Figueras is hiding a few things, like using a better switching system to create a ROTATING magnetic field instead of just a static one.

I'm not the smartest guy in the world, so maybe I'm missing something.

[Elcheapo]

pix size

Elcheapo

Can you post bigger picture of schematic ?

Ya that's a little small. Try this one.

I didn't draw out the full schematic as there are 9 sections all the same.
The bi-directional counter that I use, only counts from 0 to 8.
So the schematic only shows 2 of these sections to make it easier to allow for adding the next 7.

[Ufopolitics]

To All:
Well I guess if anyone wants to experiment with this device then the first thing you'll need is a decent circuit to control the current going to the solenoid coils.

A circuit that:
1.Pulses both coils in unison.
2.One that breaks up the dc square-wave into 8 pieces or more.
3. One that reverses itself at the end of each cycle.
4.Be adjustable from 0 to 10 amps.
5.Simple mini-pot adjustments that varies the bias to the 2 power fets that drive the 2 coils.
6.Each adjustment being totally independent of all others.
7.Able to adjust the hi and lo for the 2 coils at whatever amperage level you wish.
8.Able to adjust frequency.
9.And of course, no need for power hungry resistors.

Haven't seen anyone posting a simple circuit that meets all these requirements, so I'll post you my more elaborate circuit.
There's also a scope shot of the pulses going to the 2 mosfets.
Hope this all helps somebody.

Btw: open thumbnail with "paint"

Thanks Elcheapo!

Looks like a nice circuit, however, it is completely unreadable...

I have tried with all software I have to enhance, zoom, contrast, etc,etc...but it is too small...

If you send me a better image I could make it in CAD and post it here for all to see.

It would be a huge step forward to have such a device running the Exciter System!!


Thanks in advance


Ufopolitics

[Elcheapo]

mosfet

That looks good Elcheapo. Now you have eliminated the requirement for the hard to build part G and also designed something that should do exactly what the original part G did. It will be interesting now to see how the primary and secondary coils respond to the current being controlled in the proper way. Maybe we will get some answers as to whether or not the original Figuera device was in fact able to sustain it's own operation and supply some usable power.

Have you had a chance to try it yet? I am curious as to whether or not the mosfets get warm while only be turned on part way. Most of them like to either be full on or full off. Of course if the current is kept low it may not be a problem.

Really looking forward to your further tests.

Thanks for sharing that great circuit.

By the way you might want to look into TinyCad. It is free circuit drawing software that is really easy to use.

Glad to see you taking more interest in this thing.

Yes, I have the mosfets mounted on a large heat-sink and they do get warm.

When the gate voltage is past 4 volts then the mosfet becomes a linear device with an increase in amperage out to a proportional increase in voltage in.
Thanks for the "tinycad" reference.

[boguslaw]

Elcheapo

Can you post bigger picture of schematic ?

[citfta]

That looks good Elcheapo. Now you have eliminated the requirement for the hard to build part G and also designed something that should do exactly what the original part G did. It will be interesting now to see how the primary and secondary coils respond to the current being controlled in the proper way. Maybe we will get some answers as to whether or not the original Figuera device was in fact able to sustain it's own operation and supply some usable power.

Have you had a chance to try it yet? I am curious as to whether or not the mosfets get warm while only be turned on part way. Most of them like to either be full on or full off. Of course if the current is kept low it may not be a problem.

Really looking forward to your further tests.

Thanks for sharing that great circuit.

By the way you might want to look into TinyCad. It is free circuit drawing software that is really easy to use.

[Elcheapo]

control circuit

To All:
Well I guess if anyone wants to experiment with this device then the first thing you'll need is a decent circuit to control the current going to the solenoid coils.

A circuit that:
1.Pulses both coils in unison.
2.One that breaks up the dc square-wave into 8 pieces or more.
3. One that reverses itself at the end of each cycle.
4.Be adjustable from 0 to 10 amps.
5.Simple mini-pot adjustments that varies the bias to the 2 power fets that drive the 2 coils.
6.Each adjustment being totally independent of all others.
7.Able to adjust the hi and lo for the 2 coils at whatever amperage level you wish.
8.Able to adjust frequency.
9.And of course, no need for power hungry resistors.

Haven't seen anyone posting a simple circuit that meets all these requirements, so I'll post you my more elaborate circuit.
There's also a scope shot of the pulses going to the 2 mosfets.
Hope this all helps somebody.

Btw: open thumbnail with "paint"