Williams Rhapsody 2 A electric guitar pickup is actually much like a vibrant mike coil. For decades, powerful microphones have been wired with the voice coil mounted on the principal of the microphone's transformer, and not recommended to soil (‘floating'). The microphone's event is normally connected to the wire shield, that is connected to the microphone amplifier's surface (see Rane's internet site for more discussion).
By and large, powerful microphones are extremely calm units consequently of the mixture of transformer isolation and healthy, floating transmission lines throughout, along with guarded, humbucking coils.
So why don't you guitars? Instruments are notoriously affected by noise. Humbucking pickups are merely an incomplete (though important!) solution. The obvious option is to float your guitar pickup to a healthy output, just like a microphone. An identical strategy was printed that 2001 patent application such as Williams Rhapsody 2?