La Woman By The Doors A guitar pickup is basically similar to a dynamic microphone coil. For decades, energetic microphones have already been wired with the voice coil attached with the primary of the microphone's transformer, and not called to soil (‘floating'). The microphone's case is usually attached to the cable guard, which is linked to the mike amplifier's surface (see Rane's internet site for more discussion).
By and big, vibrant microphones are extremely quiet products consequently of the mix of transformer isolation and balanced, suspended indication lines throughout, as well as protected, humbucking coils.
Therefore why not guitars? Guitars are notoriously affected by noise. Humbucking pickups are just an incomplete (though crucial!) solution. The most obvious option is always to float the guitar collection to a balanced output, as being a microphone. An identical thought was published this 2001 patent program such as La Woman By The Doors?