Jason Isbell Beacon Theater A electric guitar pickup is basically just like a dynamic mike coil. For decades, powerful microphones have been wired with the style coil mounted on the primary of the microphone's transformer, and maybe not recommended to ground (‘floating'). The microphone's event is usually attached to the cable shield, that is connected to the mike amplifier's soil (see Rane's web site for more discussion).
By and large, powerful microphones are extremely calm products as a result of the mixture of transformer solitude and healthy, hanging indication lines through the duration of, as well as shielded, humbucking coils.
So why don't you guitars? Guitars are once affected by noise. Humbucking pickups are merely a partial (though essential!) solution. Well-known solution would be to float practicing the guitar collection to a healthy production, being a microphone. The same idea was published this 2001 patent application like this Jason Isbell Beacon Theater?