Washburn Accoustic Electric A electric guitar pickup is basically just like a powerful mike coil. For many years, powerful microphones have been wired with the voice coil attached to the principal of the microphone's transformer, and maybe not called to floor (‘floating'). The microphone's case is normally attached to the cable guard, which can be linked to the microphone amplifier's floor (see Rane's website for more discussion).
By and big, powerful microphones are very quiet products as a result of the mix of transformer isolation and healthy, suspended transmission lines for the duration of, along with guarded, humbucking coils.
So why don't you instruments? Instruments are notoriously overwhelmed by noise. Humbucking pickups are just an incomplete (though important!) solution. The obvious alternative is to float the guitar pickup to a healthy output, as being a microphone. The same strategy was published this 2001 patent program such as Washburn Accoustic Electric?