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#1
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How does magnetic shielding work?
Some drivers have magnetic shielding to not disturb CRT screens, and
obviously it works. During my education, however, I was told that DC and LF magnetic fields are terribly hard to shield, unless supraconductors are used. So how does it work? |
#2
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How does magnetic shielding work?
"Svante" wrote ...
Some drivers have magnetic shielding to not disturb CRT screens, and obviously it works. During my education, however, I was told that DC and LF magnetic fields are terribly hard to shield, unless supraconductors are used. So how does it work? Generally, they use either extraordinary means to make sure the magnetic circuit is completely closed (little or nothing escapes to the outside), or else they apply "opposing magnets" to reverse whatever field is escaping. You are correct that shielding it "after the fact" is extraordinarly difficult. |
#3
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How does magnetic shielding work?
"Svante" wrote ...
Some drivers have magnetic shielding to not disturb CRT screens, and obviously it works. During my education, however, I was told that DC and LF magnetic fields are terribly hard to shield, unless supraconductors are used. So how does it work? Generally, they use either extraordinary means to make sure the magnetic circuit is completely closed (little or nothing escapes to the outside), or else they apply "opposing magnets" to reverse whatever field is escaping. You are correct that shielding it "after the fact" is extraordinarly difficult. |
#4
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How does magnetic shielding work?
"Svante" wrote ...
Some drivers have magnetic shielding to not disturb CRT screens, and obviously it works. During my education, however, I was told that DC and LF magnetic fields are terribly hard to shield, unless supraconductors are used. So how does it work? Generally, they use either extraordinary means to make sure the magnetic circuit is completely closed (little or nothing escapes to the outside), or else they apply "opposing magnets" to reverse whatever field is escaping. You are correct that shielding it "after the fact" is extraordinarly difficult. |
#5
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How does magnetic shielding work?
"Svante" wrote ...
Some drivers have magnetic shielding to not disturb CRT screens, and obviously it works. During my education, however, I was told that DC and LF magnetic fields are terribly hard to shield, unless supraconductors are used. So how does it work? Generally, they use either extraordinary means to make sure the magnetic circuit is completely closed (little or nothing escapes to the outside), or else they apply "opposing magnets" to reverse whatever field is escaping. You are correct that shielding it "after the fact" is extraordinarly difficult. |
#6
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How does magnetic shielding work?
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#7
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How does magnetic shielding work?
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#8
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How does magnetic shielding work?
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#9
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How does magnetic shielding work?
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#10
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How does magnetic shielding work?
On 15 Feb 2004 10:13:38 -0800, (Svante)
wrote: Some drivers have magnetic shielding to not disturb CRT screens, and obviously it works. During my education, however, I was told that DC and LF magnetic fields are terribly hard to shield, unless supraconductors are used. So how does it work? Google "magnetic shielding" and you'll get these hits and mo http://www.magnetic-shield.com/shielding.html http://www.mushield.com/design_guide.html Google is your friend! -- John Fields |
#11
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How does magnetic shielding work?
On 15 Feb 2004 10:13:38 -0800, (Svante)
wrote: Some drivers have magnetic shielding to not disturb CRT screens, and obviously it works. During my education, however, I was told that DC and LF magnetic fields are terribly hard to shield, unless supraconductors are used. So how does it work? Google "magnetic shielding" and you'll get these hits and mo http://www.magnetic-shield.com/shielding.html http://www.mushield.com/design_guide.html Google is your friend! -- John Fields |
#12
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How does magnetic shielding work?
On 15 Feb 2004 10:13:38 -0800, (Svante)
wrote: Some drivers have magnetic shielding to not disturb CRT screens, and obviously it works. During my education, however, I was told that DC and LF magnetic fields are terribly hard to shield, unless supraconductors are used. So how does it work? Google "magnetic shielding" and you'll get these hits and mo http://www.magnetic-shield.com/shielding.html http://www.mushield.com/design_guide.html Google is your friend! -- John Fields |
#13
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How does magnetic shielding work?
On 15 Feb 2004 10:13:38 -0800, (Svante)
wrote: Some drivers have magnetic shielding to not disturb CRT screens, and obviously it works. During my education, however, I was told that DC and LF magnetic fields are terribly hard to shield, unless supraconductors are used. So how does it work? Google "magnetic shielding" and you'll get these hits and mo http://www.magnetic-shield.com/shielding.html http://www.mushield.com/design_guide.html Google is your friend! -- John Fields |
#14
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How does magnetic shielding work?
"Richard Crowley" wrote in message ...
"Svante" wrote ... Some drivers have magnetic shielding to not disturb CRT screens, and obviously it works. During my education, however, I was told that DC and LF magnetic fields are terribly hard to shield, unless supraconductors are used. So how does it work? Generally, they use either extraordinary means to make sure the magnetic circuit is completely closed (little or nothing escapes to the outside), or else they apply "opposing magnets" to reverse whatever field is escaping. You are correct that shielding it "after the fact" is extraordinarly difficult. So, that is why there aren't "cups" to buy that fits on any driver? I would suppose this balancing is individual for every driver model. |
#15
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How does magnetic shielding work?
"Richard Crowley" wrote in message ...
"Svante" wrote ... Some drivers have magnetic shielding to not disturb CRT screens, and obviously it works. During my education, however, I was told that DC and LF magnetic fields are terribly hard to shield, unless supraconductors are used. So how does it work? Generally, they use either extraordinary means to make sure the magnetic circuit is completely closed (little or nothing escapes to the outside), or else they apply "opposing magnets" to reverse whatever field is escaping. You are correct that shielding it "after the fact" is extraordinarly difficult. So, that is why there aren't "cups" to buy that fits on any driver? I would suppose this balancing is individual for every driver model. |
#16
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How does magnetic shielding work?
"Richard Crowley" wrote in message ...
"Svante" wrote ... Some drivers have magnetic shielding to not disturb CRT screens, and obviously it works. During my education, however, I was told that DC and LF magnetic fields are terribly hard to shield, unless supraconductors are used. So how does it work? Generally, they use either extraordinary means to make sure the magnetic circuit is completely closed (little or nothing escapes to the outside), or else they apply "opposing magnets" to reverse whatever field is escaping. You are correct that shielding it "after the fact" is extraordinarly difficult. So, that is why there aren't "cups" to buy that fits on any driver? I would suppose this balancing is individual for every driver model. |
#17
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How does magnetic shielding work?
"Richard Crowley" wrote in message ...
"Svante" wrote ... Some drivers have magnetic shielding to not disturb CRT screens, and obviously it works. During my education, however, I was told that DC and LF magnetic fields are terribly hard to shield, unless supraconductors are used. So how does it work? Generally, they use either extraordinary means to make sure the magnetic circuit is completely closed (little or nothing escapes to the outside), or else they apply "opposing magnets" to reverse whatever field is escaping. You are correct that shielding it "after the fact" is extraordinarly difficult. So, that is why there aren't "cups" to buy that fits on any driver? I would suppose this balancing is individual for every driver model. |
#18
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How does magnetic shielding work?
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#19
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How does magnetic shielding work?
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#21
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How does magnetic shielding work?
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#22
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How does magnetic shielding work?
I put the pocket pen protector in my Hanes tyedye and gave the
opposing magnet theory a shot. Any studio tech dog has loads of blown drivers, and can create mizagnetically shielded speakers. I have done this with Auratones and NS-10's (of course!!) You tiewrap the disembowled magnet from the "fatigued" (I came in for the session and it was farting already) speaker and test against a CRT in different positions. When you get to the sweet spot of field cancellation, mark the position and epoxy the magnets together. The internal field is not affected. Have not created the market for it yet, but the price of used NS-10's is starting to spike, and I have quite the few woofs standing by. . . |
#23
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How does magnetic shielding work?
I put the pocket pen protector in my Hanes tyedye and gave the
opposing magnet theory a shot. Any studio tech dog has loads of blown drivers, and can create mizagnetically shielded speakers. I have done this with Auratones and NS-10's (of course!!) You tiewrap the disembowled magnet from the "fatigued" (I came in for the session and it was farting already) speaker and test against a CRT in different positions. When you get to the sweet spot of field cancellation, mark the position and epoxy the magnets together. The internal field is not affected. Have not created the market for it yet, but the price of used NS-10's is starting to spike, and I have quite the few woofs standing by. . . |
#24
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How does magnetic shielding work?
I put the pocket pen protector in my Hanes tyedye and gave the
opposing magnet theory a shot. Any studio tech dog has loads of blown drivers, and can create mizagnetically shielded speakers. I have done this with Auratones and NS-10's (of course!!) You tiewrap the disembowled magnet from the "fatigued" (I came in for the session and it was farting already) speaker and test against a CRT in different positions. When you get to the sweet spot of field cancellation, mark the position and epoxy the magnets together. The internal field is not affected. Have not created the market for it yet, but the price of used NS-10's is starting to spike, and I have quite the few woofs standing by. . . |
#25
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How does magnetic shielding work?
I put the pocket pen protector in my Hanes tyedye and gave the
opposing magnet theory a shot. Any studio tech dog has loads of blown drivers, and can create mizagnetically shielded speakers. I have done this with Auratones and NS-10's (of course!!) You tiewrap the disembowled magnet from the "fatigued" (I came in for the session and it was farting already) speaker and test against a CRT in different positions. When you get to the sweet spot of field cancellation, mark the position and epoxy the magnets together. The internal field is not affected. Have not created the market for it yet, but the price of used NS-10's is starting to spike, and I have quite the few woofs standing by. . . |
#26
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How does magnetic shielding work?
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#27
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How does magnetic shielding work?
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#28
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How does magnetic shielding work?
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#29
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How does magnetic shielding work?
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