Snare Drum Cost A guitar pickup is basically just like a dynamic mike coil. For many years, dynamic microphones have now been wired with the voice coil mounted on the principal of the microphone's transformer, and not recommended to ground (‘floating'). The microphone's situation is normally attached to the wire shield, which will be connected to the microphone amplifier's ground (see Rane's site for more discussion).
By and big, vibrant microphones are extremely quiet products as a result of the mix of transformer isolation and healthy, floating indication lines throughout, as well as shielded, humbucking coils.
So why not instruments? Guitars are once affected by noise. Humbucking pickups are just an incomplete (though crucial!) solution. The obvious answer is to float practicing the guitar collection to a healthy result, as being a microphone. The same idea was printed that 2001 patent request such as Snare Drum Cost?