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Old 26th March 2008, 06:05 PM   #1
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Default begining of coil where?

For making crossover. Is it important where is begining of coil inside or of outside of coil? I guess sound may differ.
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Old 27th March 2008, 12:02 AM   #2
BudP is offline BudP  United States
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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.

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Old 27th March 2008, 10:14 AM   #3
sreten is offline sreten  United Kingdom
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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.
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Old 28th March 2008, 01:10 AM   #4
Pano is offline Pano  United States
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Oh, now I'm confused.

Is the "beginning" of the winding the inside or the outside?
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Old 28th March 2008, 02:41 AM   #5
BudP is offline BudP  United States
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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.

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