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4hv.org :: Forums :: Electromagnetic Projectile Accelerators
<< Previous thread | Next thread >>   

What is the best wire for a coil?

Author Post
Wed Jul 23 2008, 05:22PM Print View
Registered Member #1394
Joined: Sun Mar 16 2008, 06:18PM
Posts: 111
I am just wondering what the best most economical wire out there is to make coils.

I was looking at

AWG 10-12 Magnet wire


Bare copper wire

So which one is better?

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Wed Jul 23 2008, 06:34PM
Registered Member #1062
Joined: Tue Oct 16 2007, 02:01AM
Posts: 1529
how would bare copper wire work? ide say 8-10 AWG depending on power.
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Wed Jul 23 2008, 07:03PM
Registered Member #1394
Joined: Sun Mar 16 2008, 06:18PM
Posts: 111
O sorry I had not thought of the "Bare part" I was thinking of copper wire with a thin coat around it.

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Wed Jul 23 2008, 07:24PM
Registered Member #56
Joined: Thu Feb 09 2006, 05:02AM
Location: Southern Califorina, USA
Posts: 2435
the wire with just an enamel coating is called 'magnet wire' or 'bell wire', and gives the best efficiency. You can usually find it pretty cheep on ebay, which is probably your best bet. Another option is to go down to the local home depot/lowes/osh/etc and pick up a spool of #12 wire (generally solid is recommended, but stranded should work just as well); the thicker insulation will reduce the magnetic field slightly, but for the larger diameter wires the effect is not as large as with smaller guns.
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Thu Jul 24 2008, 12:49AM
Registered Member #1394
Joined: Sun Mar 16 2008, 06:18PM
Posts: 111
Thanks, I might go to homedepot and get the #12 wire since its easy to get but the magnet wire is better but I don't need insane efficiency.
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Thu Jul 24 2008, 06:59AM
Registered Member #1083
Joined: Mon Oct 29 2007, 06:16PM
Location: Upland, California
Posts: 256
I used romex wire for my coil and it works marvelously. Of course I had to split the whole length of romex down the middle and fish out the single conductor. It wasn't too hard though, and for something free, well....
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Thu Jul 24 2008, 07:11AM
Registered Member #1394
Joined: Sun Mar 16 2008, 06:18PM
Posts: 111
What is romex wire? I think you are talking about that 2 part wire that you can split down the middle into two wires but I am unsure if thats what you meant.
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Thu Jul 24 2008, 03:06PM
Registered Member #56
Joined: Thu Feb 09 2006, 05:02AM
Location: Southern Califorina, USA
Posts: 2435
Romex wire is 2 or 3 insulated wires (generally solid #14 or #12 but you can get it up to #6) with an uninsulated #14 'ground' lead, inside of a plastic shell. They also sell it at home depot, etc. The white stuff is #14 main conductors, the yelllow is #12, orange is #10 etc etc
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Sat Jul 26 2008, 08:53AM
Registered Member #1407
Joined: Fri Mar 21 2008, 07:09AM
Posts: 222
i use awg 15, but i dont dum that much power into my coil, it also depends ho you wind it
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