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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Speaker voice coil windings
What is the difference between N turns of wire of cross-sectional area A and
2 parallel coils of N turns and wire area A/2 ? |
#2
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Speaker voice coil windings
On 8/23/2011 8:14 AM, N_Cook wrote:
What is the difference between N turns of wire of cross-sectional area A and 2 parallel coils of N turns and wire area A/2 ? The ability of marketing to carry on about the reduced "skin effect" and how it enhances to sound of the speaker. Jeff -- "Everything from Crackers to Coffins" |
#3
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Speaker voice coil windings
Jeffrey Angus wrote in message
... On 8/23/2011 8:14 AM, N_Cook wrote: What is the difference between N turns of wire of cross-sectional area A and 2 parallel coils of N turns and wire area A/2 ? The ability of marketing to carry on about the reduced "skin effect" and how it enhances to sound of the speaker. Jeff -- "Everything from Crackers to Coffins" I have one in front of me burnt out in a small section not overlying an obvious stress point,ie not lead-in , lead-out or bend. I was just wondering if finer wire could make a VC more vulnerable to failure due to microscopic grit or swarf or something. |
#4
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Speaker voice coil windings
On 8/23/2011 8:53 AM, N_Cook wrote:
Jeffrey wrote in message ... On 8/23/2011 8:14 AM, N_Cook wrote: What is the difference between N turns of wire of cross-sectional area A and 2 parallel coils of N turns and wire area A/2 ? The ability of marketing to carry on about the reduced "skin effect" and how it enhances to sound of the speaker. Jeff -- "Everything from Crackers to Coffins" I have one in front of me burnt out in a small section not overlying an obvious stress point,ie not lead-in , lead-out or bend. I was just wondering if finer wire could make a VC more vulnerable to failure due to microscopic grit or swarf or something. Actually, I would think that method would allow a thinner gap. Higher flux density in the gap then. Probably a good reason nobody else is doing it. Jeff -- "Everything from Crackers to Coffins" |
#5
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Speaker voice coil windings
"N_Cook" wrote:
What is the difference between N turns of wire of cross-sectional area A and 2 parallel coils of N turns and wire area A/2 ? Not sure about description, but seems like the layers would snuggle each other better? Is that what your asking? Square wire is the best for keeping air gaps out or flat edge wound. Greg |
#6
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Speaker voice coil windings
gregz wrote in message
. ... "N_Cook" wrote: What is the difference between N turns of wire of cross-sectional area A and 2 parallel coils of N turns and wire area A/2 ? Not sure about description, but seems like the layers would snuggle each other better? Is that what your asking? Square wire is the best for keeping air gaps out or flat edge wound. Greg As far as i can see under x30 and feel, this coubled up fine wire is round in section. I can see finer wire requires less intrusion into the former to carry the fist axial run , before the first turn proper. Also able to make a tighter bend perhaps with less localised stressing than the single wire option. |
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