Strymon Timeline Used A guitar pickup is basically just like a dynamic mike coil. For many years, vibrant microphones have been wired with the voice coil mounted on the primary of the microphone's transformer, and perhaps not called to soil (‘floating'). The microphone's event is normally linked to the cable guard, which can be linked to the mike amplifier's floor (see Rane's web site for more discussion).
By and large, dynamic microphones are very quiet devices consequently of the combination of transformer isolation and balanced, hanging sign lines for the duration of, in addition to guarded, humbucking coils.
Therefore why not instruments? Instruments are notoriously overwhelmed by noise. Humbucking pickups are merely a partial (though crucial!) solution. The most obvious answer would be to float the guitar pickup to a healthy result, as being a microphone. A similar idea was published this 2001 patent request like this Strymon Timeline Used?