Lets start the new year with a bang!

[Mario]

Duncan,

there are a few things you said that don't add up. You want to use pure iron, yet you say that transformer laminate is probably not enough?? Ever heard of eddie currents? If you want to try that setup you better use a ferrite core or at least transformer laminate. That being said I don't think you will see in real world what you describe in theory.
The source (H-bridge) sees a short at resonance if you give it a series resonant setup. At best you would get normal transformer action in my opinion. I don't say this just to ruin your hopes, I'm working on resonant setups right now, and I happen to have a ferrite toroid which already had four windings from previous experiments, so I gave it a go. Instead of an H-bridge I used a power amp driven by a signal generator. Like I suspected I got maximum input amps at resonance which is normal if the amp sees a series setup. On the other two coils I had light bulbs as a load. The best I got was what you'd get with a normal transformer.

If you made the input parallel resonant it would be different, but no in/out gain in the end either. But this is another matter. It takes many hands on experiments until one starts to grasp resonant setups.

I think you should do the experiment, maybe you will find something I missed.

regards,
Mario

[GT899]

Do you think these soft iron rods might work?:
Soft Iron Rod Core for strong electromagnet VERY RARE!! | eBay

I was thinking perhaps make a toroid cast and then melt several of these rods for pouring into the cast?

Here is an interesting site describing different soft and hard magnet materials:
What are soft magnetic material and hard magnetic material?_Zhejiang Sunfine Solar Technology Co., Ltd.

Thanks for sharing all the info you know about this! Free sharing is always the way to go.

[Bob Smith]

... the series resonant impulse wave is making the battery resonant to the electrostatic wave , which allows huge amounts of magnetic current to flow ... IMHO the motors and bad batteries are just a means to develop a sharp impulse wave.
And what you call 'in the zone' is being lucky to find series resonance and stay on it for a while

Duncan,
Thanks so much for your reply. I've been convinced for some years that this was indeed the key to a large influx of energy into these systems. I just needed some help to fill in my gaps in understanding.

Looking at Lee Tseung's recent work at getting Joule Thiefs to operate at resonance and ensuing overunity seems to validate what you're saying. He hasn't had the easiest ride on these forums, but he's operating from a different motivational principle based on free sharing what he's freely been given - something you probably both uphold in your own way.

I suspect a decent PWM might be enough to get this OU effect, between a battery and a load.

The more people talk and share their findings about this, the simpler it will become, I believe. The greatest truths are usually the simplest and clearest, but we often have to have the scales removed from our eyes to see them.

I'm wondering if a simple variation on the joule thief might be a useful place to start in working towards a TPU-type setup. Surely someone has already posted something of this kind - I'll have to do some scanning thru schematics.
A bientot monsieur!
Bob

This shouldn't be that hard once enough of us have a method down.

Edit: Duncan, I believe this corroborates some of what you've said:
Clarifying what cold electricity/radiant output means - YouTube

[Duncan]

Duncan,

there are a few things you said that don't add up. You want to use pure iron, yet you say that transformer laminate is probably not enough?? Ever heard of eddie currents? If you want to try that setup you better use a ferrite core or at least transformer laminate. That being said I don't think you will see in real world what you describe in theory.
The source (H-bridge) sees a short at resonance if you give it a series resonant setup. At best you would get normal transformer action in my opinion. I don't say this just to ruin your hopes, I'm working on resonant setups right now, and I happen to have a ferrite toroid which already had four windings from previous experiments, so I gave it a go. Instead of an H-bridge I used a power amp driven by a signal generator. Like I suspected I got maximum input amps at resonance which is normal if the amp sees a series setup. On the other two coils I had light bulbs as a load. The best I got was what you'd get with a normal transformer.

If you made the input parallel resonant it would be different, but no in/out gain in the end either. But this is another matter. It takes many hands on experiments until one starts to grasp resonant setups.

I think you should do the experiment, maybe you will find something I missed.

regards,
Mario

[Duncan]

Do you think these soft iron rods might work?:
Soft Iron Rod Core for strong electromagnet VERY RARE!! | eBay

I was thinking perhaps make a toroid cast and then melt several of these rods for pouring into the cast?

Here is an interesting site describing different soft and hard magnet materials:
What are soft magnetic material and hard magnetic material?_Zhejiang Sunfine Solar Technology Co., Ltd.

Thanks for sharing all the info you know about this! Free sharing is always the way to go.

HowStuffWorks "How Speakers Work"
The material the core of what is called 'the voice coil' is what Steve Mark used ... that coil is taking all the input power ,changing it to lateral movement and physically moving that cone very fast back and forth.* the big PM magnet your thinking of is effectively a counter balance .. I'm not interested in that at all . it is the substance that the voice coil is wound on probably a sintered material of some sort* .. Steve Mark .. had access to it , it has every quality needed here ... light weight, very soft magnetically, capable of handling huge power. capable of being' formed ' obviously for different speakers . actually absolutely the reverse of what you say Grumage the stuff has no magnetic retention at all the speaker cone always returns to the centre position . pressed into the right shape it has every requirement I need , so I know what it does, I know how it does it , I know its frequency response , I know its power handling, I know its Retentivity* I can even work out its B/H curve . That's not guess work or thinking about it ... that's just simple pure engineering every step of the way .... I've never seen the stuff, and I cant remember the last time I ever butchered a Loudspeaker ... but that 'stuff' has all the qualities required to make the Christmas card jump about! perhaps I cant get my hands on it, but someone out in forum land can and will I'm sure. I didn't put the post up for me ultimately anyway I posted all the engineering and the principles of every step and that sir is very unusual (as you know) from here anyone at all has as much chance of building ,proving ,demonstrating* the thing as I do. I'm quite sure the principles, technology and logic /detective work are right .... who's got the exotic magnetics is the question.

[Duncan]

Re enforcing bar for concrete I think would be a good source

Regards

Mike

Sorry Mike I missed your post .. thats a thought .. Re bar I guess thats going to be pretty pure to avoid rust .. I'll see what I can find out. .. as always a big help

[GSM]

Hi Duncan,

Could a TPU not be wound over *straight* iron sides - the magnetic circuit would still be equally closed ?

Rectangular transformers have been fine throughout electrical history - prior to toroidal winding becoming possible.

Straight sections would also be easy for basic hands-on development - *prior to* circularly worked optimisation !!!

Cheers ........... Graham.

[Mario]

[Duncan]

nit wit

minimum impedance is of course in every primary school book. that isn't a short circuit

[Mario]

[Duncan]

Voice coil - Wikipedia, the free encyclopedia

[Mario]

[Duncan]

now answer me indeed ! just who do you think you are ? .. your certainly a numpty I could do with out ! series resonance is a short circuit ,, is about as much use as tits on a kipper, I think you can leave in short jerky movements .. goodbye I shan't be responding to anymore of your purile diatribe!

[GSM]

Hi Mario.

You obviously know what you are writing about - but NOT about what Duncan is writing about !

What is happening within the TPU segments is quite different to the electromagnetics taught in colleges and universities.

Duncan is right, he DOES know, and he is attempting to help others understand,
the problem being trying to write in a 'conventional' manner others might follow.

So Mario, Duncan is NOT wrong, and although the interpretations of his words might be, he really is trying hard to clarify,
and what must be understood here -
is that subsection core fields can be induced to series-parallel reverse in ways NOT envisioned via classical scientific experience.

Cheers ........... Graham.

[Duncan]

yeah listen .. I'm very tired Mario ... sorry man I'll come back in a while when I've calmed down ...