Pickup Guitar Humbucker Alnico A guitar pickup is essentially much like a powerful microphone coil. For decades, active microphones have now been wired with the voice coil mounted on the principal of the microphone's transformer, and perhaps not recommended to floor (‘floating'). The microphone's situation is normally connected to the wire guard, that will be connected to the mike amplifier's floor (see Rane's website for more discussion).
By and large, active microphones are extremely quiet units consequently of the mix of transformer isolation and balanced, floating transmission lines throughout, as well as guarded, humbucking coils.
Therefore why don't you instruments? Instruments are once plagued by noise. Humbucking pickups are only a partial (though important!) solution. The most obvious solution would be to float your guitar pickup to a healthy productivity, just like a microphone. A similar idea was published that 2001 patent request such as Pickup Guitar Humbucker Alnico?