Paul Stanley Artist A electric guitar collection is actually similar to an energetic microphone coil. For many years, energetic microphones have now been sent with the voice coil attached with the principal of the microphone's transformer, and perhaps not referenced to floor (‘floating'). The microphone's event is typically connected to the wire shield, which can be attached to the microphone amplifier's surface (see Rane's web site for more discussion).
By and big, dynamic microphones are very quiet devices as a result of the combination of transformer isolation and healthy, hanging sign lines throughout, in addition to shielded, humbucking coils.
Therefore why don't you instruments? Instruments are once plagued by noise. Humbucking pickups are merely a partial (though important!) solution. Well-known answer is to float the guitar collection to a balanced output, as being a microphone. A similar thought was printed that 2001 patent software like this Paul Stanley Artist?