Electric Guitar List A guitar pickup is essentially much like a powerful microphone coil. For decades, active microphones have now been wired with the style coil attached to the primary of the microphone's transformer, and perhaps not called to ground (‘floating'). The microphone's situation is usually attached to the cable shield, that is linked to the microphone amplifier's floor (see Rane's website for more discussion).
By and large, energetic microphones are extremely calm devices consequently of the mixture of transformer isolation and healthy, suspended transmission lines throughout, as well as protected, humbucking coils.
Therefore why not guitars? Guitars are once plagued by noise. Humbucking pickups are merely an incomplete (though essential!) solution. Well-known answer would be to float your guitar pickup to a balanced result, being a microphone. A similar idea was printed that 2001 patent program like this Electric Guitar List?