Landed on crossover land, where to find 0.05 mH coil ???

Guss · 24th December 2003, 08:15 PM

Hi folks, it's been a while since I decided to get a step further with my actual project. Well now I'm about to order my xover parts and I wonder where I could find 0.05mH coil? I planned to buy solen component but it seems that they have nothing below 0.1 . I don't have an inductance metter or whatever it is called , I don't have it

. I don't want to wind it by myself because I worry about the copper quality available. Any suggestions ?

EDIT: Ok maybe I could wind it by myself, I guess I probably would

,yeah tell me!

officeboy · 24th December 2003, 08:29 PM

Of course Parts Express would have it

And I don't know how you could wind it without an inductance meter, you would be better off getting a .1 and unwinding ½ of it.

tool49 · 24th December 2003, 08:33 PM

In the Montreal region, King George Electronique has some. You'll prolly end up with more quality than needed, but they can even wind it for you if you know exactly what you need in terms of wire gauge, wire type and center type.

www.kge.ca

Hope this helps you.
Sébastien

Guss · 24th December 2003, 09:45 PM

Quote:

Originally posted by officeboy
Of course Parts Express would have it

And I don't know how you could wind it without an inductance meter, you would be better off getting a .1 and unwinding ½ of it.

Hmm, I don't know if inductance depends on the number of row, it probably depends on an overall base because of the enlargment of the coil with rows but im not sure anyway...

Partexpress, of course, but I'd have to pay an extra 15$us just fro 2 / 0.05coils so its a no go cuz I'm on a budjet...

Quote:

In the Montreal region, King George Electronique has some. You'll prolly end up with more quality than needed, but they can even wind it for you if you know exactly what you need in terms of wire gauge, wire type and center type.

Hey, if they ship their product to Quebec, it would be just perfect!

Thanks

MarcelvdG · 24th December 2003, 10:07 PM

It is a bit of a waste, but you could put two 0.1mH inductors in parallel.

Ron E · 24th December 2003, 11:03 PM

56 turns of 22 gauge magnet wire on a 0.5" nonmagnetic core, 0.25" in length.
(8 layers, 7 turns per layer)

Rdc=0.17 ohms
Wire length = ~10.5 feet per coil, not including leads.

You can buy 22ga wire at radio shack
Catalog #: 278-1345

24th December 2003, 08:15 PM	#1
Guss diyAudio Member Join Date: Jun 2003 Location: Montreal	Landed on crossover land, where to find 0.05 mH coil ??? Hi folks, it's been a while since I decided to get a step further with my actual project. Well now I'm about to order my xover parts and I wonder where I could find 0.05mH coil? I planned to buy solen component but it seems that they have nothing below 0.1 . I don't have an inductance metter or whatever it is called , I don't have it . I don't want to wind it by myself because I worry about the copper quality available. Any suggestions ? EDIT: Ok maybe I could wind it by myself, I guess I probably would ,yeah tell me!

24th December 2003, 11:03 PM	#6
Ron E diyAudio Member Join Date: Jun 2002 Location: USA, MN	56 turns of 22 gauge magnet wire on a 0.5" nonmagnetic core, 0.25" in length. (8 layers, 7 turns per layer) Rdc=0.17 ohms Wire length = ~10.5 feet per coil, not including leads. You can buy 22ga wire at radio shack Catalog #: 278-1345 __________________ Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works. --Carl Sagan Science is a way of thinking much more than it is a body of knowledge. --Carl Sagan

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24th December 2003, 08:29 PM	#2
officeboy diyAudio Member Join Date: Nov 2003 Location: NW Washington	Of course Parts Express would have it And I don't know how you could wind it without an inductance meter, you would be better off getting a .1 and unwinding ½ of it.

24th December 2003, 08:33 PM	#3
tool49 diyAudio Member Join Date: Apr 2003 Location: Montreal	In the Montreal region, King George Electronique has some. You'll prolly end up with more quality than needed, but they can even wind it for you if you know exactly what you need in terms of wire gauge, wire type and center type. www.kge.ca Hope this helps you. Sébastien

24th December 2003, 10:07 PM	#5
MarcelvdG diyAudio Member Join Date: Mar 2003 Location: Haarlem, the Netherlands	It is a bit of a waste, but you could put two 0.1mH inductors in parallel.

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