Vocal Cord Nodules Affect A best guitar pickup is basically much like an energetic mike coil. For decades, powerful microphones have been sent with the style coil mounted on the primary of the microphone's transformer, and maybe not called to floor (‘floating'). The microphone's case is usually connected to the wire shield, which will be attached to the microphone amplifier's surface (see Rane's site for more discussion).
By and big, active microphones are very quiet units as a result of the combination of transformer isolation and balanced, hanging transmission lines throughout, as well as guarded, humbucking coils.
So why don't you instruments? Instruments are notoriously affected by noise. Humbucking pickups are only a partial (though important!) solution. Well-known answer is always to move your guitar collection to a balanced result, being a microphone. A similar strategy was published that 2001 patent program such as Vocal Cord Nodules Affect?