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4hv.org :: Forums :: Sale and Trade
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Buying Litz wire

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m4ge123
Sat Jan 21 2012, 06:38PM Print
m4ge123 Registered Member #4118 Joined: Mon Oct 03 2011, 04:50PM
Location: MD
Posts: 140
I'm looking for about 6 feet of litz wire that can take 60A continuous at 250KHz. Even if you have thinner stuff I might be interested.
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Sulaiman
Sat Jan 21 2012, 09:36PM
Sulaiman Registered Member #162 Joined: Mon Feb 13 2006, 10:25AM
Location: United Kingdom
Posts: 3140
I doubt anyone has such high current rated Litz wire,
for an air core coil consider copper tubing
for a transformer consider copper strip/tape.
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Thomas W
Sat Jan 21 2012, 10:31PM
Thomas W Registered Member #3324 Joined: Sun Oct 17 2010, 06:57PM
Location:
Posts: 1276
are you after the more ridged stuff or the flexible stuff?
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m4ge123
Sun Jan 22 2012, 12:56AM
m4ge123 Registered Member #4118 Joined: Mon Oct 03 2011, 04:50PM
Location: MD
Posts: 140
Doesn't matter, as long as the strands are at least 30awg, preferably 40.
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Thomas W
Sun Jan 22 2012, 08:49AM
Thomas W Registered Member #3324 Joined: Sun Oct 17 2010, 06:57PM
Location:
Posts: 1276
what about car jumper cable?
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m4ge123
Mon Jan 23 2012, 03:13AM
m4ge123 Registered Member #4118 Joined: Mon Oct 03 2011, 04:50PM
Location: MD
Posts: 140
Nope. The point of litz wire is to bypass the skin effect, which makes high frequency current flow on the outer edge of conductors. It's made up of many insulated strands of thin wire.
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Thomas W
Mon Jan 23 2012, 07:33AM
Thomas W Registered Member #3324 Joined: Sun Oct 17 2010, 06:57PM
Location:
Posts: 1276
oh, i got the names confused :3
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Goodchild
Mon Jan 23 2012, 07:37AM
Goodchild Registered Member #2292 Joined: Fri Aug 14 2009, 05:33PM
Location: The Wild West AKA Arizona
Posts: 795
Why don't you just make some out of magnet wire. I do it all the time. Select wire size cut out the lengths and use a drill to twist it all together. It works like magic any wire size and frequency you need.


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Steve Conner
Mon Jan 23 2012, 12:03PM
Steve Conner Registered Member #30 Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
There are companies that make massive Litz wire for induction heating applications. I've seen it as thick as your wrist with a water cooling hose down the middle.

But for a one-off it's probably easier to make your own out of magnet wire. Try to get the self-fluxing stuff so you don't have to strip each individual strand: that would get old quick.

Watch out for Germans, they call any stranded wire Litz wire whether the strands are insulated or not. "Litz" is the German word for strand, so what else would they call it.
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Goodchild
Mon Jan 23 2012, 03:54PM
Goodchild Registered Member #2292 Joined: Fri Aug 14 2009, 05:33PM
Location: The Wild West AKA Arizona
Posts: 795
If you don't have the self fluxing wire another good trick is to get out the old torch and burnt the insolation off the end. After that usually just have to go over it with a little steal wool or sand paper to clean off any black crud left over from the torch.
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