American Metals Mesa A electric guitar pickup is actually much like a dynamic mike coil. For many years, energetic microphones have already been wired with the style coil mounted on the primary of the microphone's transformer, and not referenced to surface (‘floating'). The microphone's situation is usually attached to the cable guard, that will be attached to the microphone amplifier's ground (see Rane's website for more discussion).
By and large, dynamic microphones are extremely calm devices as a result of the combination of transformer isolation and healthy, hanging transmission lines during, along with guarded, humbucking coils.
Therefore why don't you guitars? Instruments are once overwhelmed by noise. Humbucking pickups are only a partial (though essential!) solution. Well-known option is to float the guitar collection to a healthy output, as being a microphone. The same idea was printed this 2001 patent program such as American Metals Mesa?