Tom Petty Rickenbacker Guitar A guitar collection is actually much like a dynamic mike coil. For many years, vibrant microphones have already been wired with the voice coil attached with the principal of the microphone's transformer, and perhaps not referenced to ground (‘floating'). The microphone's situation is normally linked to the wire guard, which is attached to the mike amplifier's ground (see Rane's site for more discussion).
By and large, powerful microphones are very calm devices consequently of the mixture of transformer solitude and healthy, floating indication lines during, as well as shielded, humbucking coils.
So why not instruments? Guitars are once overwhelmed by noise. Humbucking pickups are only a partial (though essential!) solution. The obvious solution is to float your guitar collection to a healthy production, as being a microphone. A similar thought was printed this 2001 patent software like this Tom Petty Rickenbacker Guitar?