Neil Young Vinyl A guitar pickup is essentially much like a dynamic mike coil. For decades, dynamic microphones have now been wired with the voice coil attached to the principal of the microphone's transformer, and not recommended to ground (‘floating'). The microphone's event is normally connected to the cable shield, that will be connected to the mike amplifier's floor (see Rane's web site for more discussion).
By and big, powerful microphones are very quiet units as a result of the combination of transformer isolation and healthy, floating indication lines through the duration of, along with protected, humbucking coils.
So why not instruments? Guitars are notoriously overwhelmed by noise. Humbucking pickups are only an incomplete (though crucial!) solution. The obvious option would be to move practicing the guitar collection to a balanced productivity, just like a microphone. A similar strategy was published that 2001 patent request like this Neil Young Vinyl?