Ever try shielding your air core coil's class D EMI in copper pipe fittings or should I keep looking for mu metal cans?
I don't know about mu metal cans, but a copper can will lower the inductance, of an air core inductor.
I have used a combination of copper and ferro-magnetic stainless steel for the job, to keep the inductance unchanged.
http://www.class-a-labs.com/induc1.html
Magura
I don't know about mu metal cans, but a copper can will lower the inductance, of an air core inductor.
I have used a combination of copper and ferro-magnetic stainless steel for the job, to keep the inductance unchanged.
Technically they aren't actually air-core inductors anymore then but under-cored inductors.
Technically they aren't actually air-core inductors anymore then but under-cored inductors.
That could be said about any air core in a box
Magura
Some people put foil right on the coils.
So I guess placing foil right on the coils like this won't help.
http://www.diyaudio.com/forums/showthread.php?p=1228778
http://diyparadise.com/charlize2.html
So I guess placing foil right on the coils like this won't help.
http://www.diyaudio.com/forums/showthread.php?p=1228778
http://diyparadise.com/charlize2.html
So I guess placing foil right on the coils like this won't help.
http://www.diyaudio.com/forums/showthread.php?p=1228778
http://diyparadise.com/charlize2.html
That's a different solution, as it does not short the inductor.
I would be skeptic to its shielding properties, as it's not sealed.
Give it a shot, and test it with a compass.
Magura
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