Posted by Wayne Parham [ 70.234.131.209 ] on June 05, 2008 at 17:13:21:
In Reply to: Why are air core coils? posted by cantur on June 03, 2008 at 12:07:19:
Iron core coils suffer from hysteresis and can be saturated, air core coils don't. As a result, an air core coil offers better performance in terms of linearity and therefore distortion. But for large inductance values, laminated steel cores are sometimes attractive because air core coils would need to be much larger, requiring many more turns of the conductive wire or foil.
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