Ludwig Drum Set A guitar pickup is essentially much like a dynamic mike coil. For many years, vibrant microphones have now been sent with the style coil mounted on the principal of the microphone's transformer, and not referenced to surface (‘floating'). The microphone's situation is usually attached to the cable shield, which will be connected to the microphone amplifier's ground (see Rane's site for more discussion).
By and big, powerful microphones are extremely calm devices consequently of the combination of transformer solitude and balanced, flying sign lines during, in addition to guarded, humbucking coils.
Therefore why not guitars? Guitars are notoriously plagued by noise. Humbucking pickups are merely an incomplete (though crucial!) solution. The most obvious answer would be to float practicing the guitar pickup to a healthy result, as being a microphone. A similar idea was printed this 2001 patent application such as Ludwig Drum Set?