Drum Machine Toy A guitar pickup is basically just like a vibrant microphone coil. For many years, dynamic microphones have been sent with the voice coil attached with the primary of the microphone's transformer, and maybe not called to soil (‘floating'). The microphone's situation is normally connected to the cable shield, which will be linked to the microphone amplifier's ground (see Rane's web site for more discussion).
By and large, active microphones are extremely quiet units consequently of the combination of transformer isolation and healthy, flying sign lines during, as well as shielded, humbucking coils.
Therefore why don't you guitars? Guitars are once affected by noise. Humbucking pickups are just an incomplete (though essential!) solution. The obvious answer would be to float your guitar pickup to a balanced output, as being a microphone. A similar idea was printed that 2001 patent application such as Drum Machine Toy?