Gibson Les Paul P90 A guitar pickup is essentially just like a powerful microphone coil. For many years, energetic microphones have already been sent with the voice coil attached to the principal of the microphone's transformer, and not referenced to ground (‘floating'). The microphone's situation is usually linked to the cable shield, which is connected to the microphone amplifier's floor (see Rane's website for more discussion).
By and big, dynamic microphones are extremely calm products as a result of the combination of transformer isolation and healthy, floating sign lines for the duration of, in addition to shielded, humbucking coils.
Therefore why not guitars? Guitars are notoriously overwhelmed by noise. Humbucking pickups are just a partial (though crucial!) solution. The most obvious alternative is to float practicing the guitar pickup to a balanced productivity, being a microphone. An identical strategy was published this 2001 patent program like this Gibson Les Paul P90?