Guitar Strings Standard A electric guitar pickup is essentially just like a dynamic microphone coil. For decades, active microphones have already been sent with the voice coil attached to the primary of the microphone's transformer, and maybe not referenced to soil (‘floating'). The microphone's case is typically linked to the cable shield, which can be connected to the microphone amplifier's floor (see Rane's website for more discussion).
By and big, vibrant microphones are very calm units consequently of the combination of transformer solitude and healthy, flying indication lines throughout, along with shielded, humbucking coils.
So why not guitars? Instruments are notoriously plagued by noise. Humbucking pickups are just an incomplete (though essential!) solution. Well-known alternative is to float the guitar collection to a healthy production, just like a microphone. An identical idea was printed that 2001 patent request such as Guitar Strings Standard?