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Author Topic: Coil winding service?  (Read 4324 times)

Offline carlprad

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  • Posts: 45
Coil winding service?
« on: September 24, 2013, 02:08:54 AM »
Hello

Can anyone tell me of a dependable person or company that sells pre-wound/ready-made coils.

I've been reading about the "brooks" coil having the perfect ratio, but, I'm a neewbie and would rather pay someone to make me perfectly wound coils.

Is there a service where i just tell them the dimensions of the coil I want and the wire gauge I want used, along with the desired inductance?.

By the way, i'm looking for "air core coils".

Thanks to everyone in advance for your help,

Carlos




Free Energy | searching for free energy and discussing free energy

Coil winding service?
« on: September 24, 2013, 02:08:54 AM »

Offline MileHigh

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  • Posts: 7600
Re: Coil winding service?
« Reply #1 on: September 24, 2013, 02:25:02 AM »
Just go to the electronics hobby store and buy some spools of wire.  Those are ready-made coils.  You can bring a magnet along to check if the spool the wire is on is ferromagnetic or not.  As easy as pie!

Offline carlprad

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  • Posts: 45
Re: Coil winding service?
« Reply #2 on: September 24, 2013, 02:28:33 AM »
how do I know the wire is wound to the proper ratio in order to provide a specific inductance?

As I mentioned earlier, I am new to this, and am under the impression, that the best way to wind, is using the "Brooks ratio".

Thanks




Free Energy | searching for free energy and discussing free energy

Re: Coil winding service?
« Reply #2 on: September 24, 2013, 02:28:33 AM »
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Offline MileHigh

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Re: Coil winding service?
« Reply #3 on: September 24, 2013, 02:52:10 AM »
You don't have to worry about the Brooks ratio at all.  That's just a kind of "sweet spot" for the length vs. diameter of a coil.  You don't need it.  The only thing you care about is that the coil has inductance, and any spool or coil of wire will have inductance.  Any coil of wire will do just fine, so why not buy pre-made coils by buying spools of wire?  If you were very careful you could make a slit on the side of the spool and make tap points so that you could turn one coil into two or three coils with different numbers of turns and inductance values when you experiment.

Offline carlprad

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Re: Coil winding service?
« Reply #4 on: September 30, 2013, 04:22:55 PM »
Milehigh

What about winding toroids?

I know there is a formula for figuring out the number of turns.

However, is there a general rule I can use to get decent results without having to do the more intricate calculations?

Thanks

Carlos


Free Energy | searching for free energy and discussing free energy

Re: Coil winding service?
« Reply #4 on: September 30, 2013, 04:22:55 PM »
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