begining of coil where?

goodspeaker · 26th March 2008, 06:05 PM

For making crossover. Is it important where is begining of coil inside or of outside of coil? I guess sound may differ.

BudP · 27th March 2008, 12:02 AM

goodspeaker,

The common understanding of the transformer manufacturers is that the beginning of the winding is the ground side connection, if there is to be one.

Bud

sreten · 27th March 2008, 10:14 AM

Hi,

just to clarify :

The ground side connection of inductors (and non-polar capacitors)
is based on that connection being on the outside of the component,
(coil or foil) thus providing some self screening properties.

/sreten.

Pano · 28th March 2008, 01:10 AM

Oh, now I'm confused.

Is the "beginning" of the winding the inside or the outside?

BudP · 28th March 2008, 02:41 AM

The beginning of the winding is on the inside or start of the coil and is marked with a black dot next to the pin or lead call out on transformer manufacturers data sheets.

Sreten is correct in saying that the ground side circuit connection should be on the outside or finish of the winding, for maximum shielding.

Just goes to show why magnetics and electronics engineers get along like the Hatfield's and McCoy's.

Bud

28th March 2008, 01:10 AM	#4
Pano diyAudio Moderator Join Date: Oct 2004 Location: North Carolina Blog Entries: 4	Oh, now I'm confused. Is the "beginning" of the winding the inside or the outside? __________________ Take the Speaker Voltage Test!

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27th March 2008, 12:02 AM	#2
BudP diyAudio Member Join Date: Feb 2007 Location: upper left crust, united snakes	goodspeaker, The common understanding of the transformer manufacturers is that the beginning of the winding is the ground side connection, if there is to be one. Bud

27th March 2008, 10:14 AM	#3
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	Hi, just to clarify : The ground side connection of inductors (and non-polar capacitors) is based on that connection being on the outside of the component, (coil or foil) thus providing some self screening properties. /sreten.

28th March 2008, 02:41 AM	#5
BudP diyAudio Member Join Date: Feb 2007 Location: upper left crust, united snakes	The beginning of the winding is on the inside or start of the coil and is marked with a black dot next to the pin or lead call out on transformer manufacturers data sheets. Sreten is correct in saying that the ground side circuit connection should be on the outside or finish of the winding, for maximum shielding. Just goes to show why magnetics and electronics engineers get along like the Hatfield's and McCoy's. Bud

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