Flying V Guitar A guitar collection is actually similar to an energetic mike coil. For many years, vibrant microphones have been wired with the voice coil mounted on the primary of the microphone's transformer, and not recommended to floor (‘floating'). The microphone's event is typically attached to the cable guard, that will be linked to the microphone amplifier's ground (see Rane's web site for more discussion).
By and big, vibrant microphones are extremely quiet devices as a result of the mixture of transformer isolation and balanced, flying indication lines all through, in addition to guarded, humbucking coils.
Therefore why don't you guitars? Guitars are once affected by noise. Humbucking pickups are just a partial (though important!) solution. The most obvious solution is to move practicing the guitar collection to a balanced output, being a microphone. A similar idea was published this 2001 patent application such as Flying V Guitar?