Good Inductor Source?

bjackson · 18th November 2005, 12:43 PM

This might belong in the electronics parts forum. If so, oops!

Where is the best source for high quality, yet cheap, inductors. I am sourcing a 12 gauge 3mH inductor, and man, I am getting costs from 30-50 bucks. Any super secret source I don't know about?

soongsc · 18th November 2005, 01:34 PM

http://www.partsexpress.com/webpage....ID=197#16gauge

http://gallery.bcentral.com/GID49565...-inductor.aspx

bjackson · 18th November 2005, 03:11 PM

Both of those links are 16 gauge. The price goes up significantly at 12 gauge.

Ron E · 18th November 2005, 03:23 PM

Use an iron or laminate core inductor that is rated for the power you plan to use. It will work fine. Using an iron core is not a compromise...

If you want a ballpark number for cost to DIY, factor around 6-8 dollars a pound. You'll see why no manufacturer I know of would use an air core in this application.

bjackson · 18th November 2005, 03:59 PM

Anyone have any thoughts about iron core in the low pass at around 200hz? I ask because I know nothing about "hysterisis", but don't want to make a mistake.

Cal Weldon · 18th November 2005, 05:01 PM

Quote:

Originally posted by bjackson
Both of those links are 16 gauge.

Further down the Janzen page they have the 12ga copper foil. Still expensive though.

Quote:

Originally posted by bjackson
Anyone have any thoughts about iron core in the low pass at around 200hz? I ask because I know nothing about "hysterisis", but don't want to make a mistake.

I think we have all used iron cores for the larger values at one time or another but there always seems to be someone who says it spells the end of the speaker world as we know it. I'm not sure you can tell the difference if it's 200Hz and below so I say go for it. Uh oh, watch the flamers burn me bad.

Ron E · 18th November 2005, 05:17 PM

http://www.partsexpress.com/pe/pshow...number=266-912

this 16 gauge laminate core has half the DCR of the 12ga foil inductor and cost 1/3 as much. The DCR of the inductor must be factored in to the design of the bass cabinet, as it increases woofer Qes.

soongsc · 19th November 2005, 01:10 AM

I think regardless whether you use iron core or air core, it is good to have at least a 14# for over 100W, and at least 16# for lower wattages.

If you want 200, you can negotiate a better price which most suppliers are willing to give pretty good discounts.

18th November 2005, 01:34 PM	#2
soongsc diyAudio Member Join Date: Mar 2005 Location: Taiwan	http://www.partsexpress.com/webpage....ID=197#16gauge http://gallery.bcentral.com/GID49565...-inductor.aspx __________________ Hear the real thing!

18th November 2005, 03:23 PM	#4
Ron E diyAudio Member Join Date: Jun 2002 Location: USA, MN	Use an iron or laminate core inductor that is rated for the power you plan to use. It will work fine. Using an iron core is not a compromise... If you want a ballpark number for cost to DIY, factor around 6-8 dollars a pound. You'll see why no manufacturer I know of would use an air core in this application. __________________ 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

18th November 2005, 05:17 PM	#7
Ron E diyAudio Member Join Date: Jun 2002 Location: USA, MN	http://www.partsexpress.com/pe/pshow...number=266-912 this 16 gauge laminate core has half the DCR of the 12ga foil inductor and cost 1/3 as much. The DCR of the inductor must be factored in to the design of the bass cabinet, as it increases woofer Qes. __________________ 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

19th November 2005, 01:10 AM	#8
soongsc diyAudio Member Join Date: Mar 2005 Location: Taiwan	I think regardless whether you use iron core or air core, it is good to have at least a 14# for over 100W, and at least 16# for lower wattages. If you want 200, you can negotiate a better price which most suppliers are willing to give pretty good discounts. __________________ Hear the real thing!

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18th November 2005, 12:43 PM	#1
bjackson diyAudio Member Join Date: Dec 2004 Location: Illinois	Good Inductor Source? This might belong in the electronics parts forum. If so, oops! Where is the best source for high quality, yet cheap, inductors. I am sourcing a 12 gauge 3mH inductor, and man, I am getting costs from 30-50 bucks. Any super secret source I don't know about?

18th November 2005, 03:11 PM	#3
bjackson diyAudio Member Join Date: Dec 2004 Location: Illinois	Both of those links are 16 gauge. The price goes up significantly at 12 gauge.

18th November 2005, 03:59 PM	#5
bjackson diyAudio Member Join Date: Dec 2004 Location: Illinois	Anyone have any thoughts about iron core in the low pass at around 200hz? I ask because I know nothing about "hysterisis", but don't want to make a mistake.

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