Jimi Hendrix Black Light Posters A guitar pickup is basically much like an energetic microphone coil. For decades, active microphones have been wired with the voice coil attached with the primary of the microphone's transformer, and not referenced to floor (‘floating'). The microphone's situation is usually linked to the wire guard, which can be linked to the mike amplifier's floor (see Rane's web site for more discussion).
By and large, active microphones are very calm units consequently of the combination of transformer solitude and healthy, floating sign lines through the duration of, along with protected, humbucking coils.
Therefore why not instruments? Instruments are notoriously overwhelmed by noise. Humbucking pickups are just a partial (though crucial!) solution. The obvious solution is always to move the guitar pickup to a healthy result, as being a microphone. The same thought was published that 2001 patent request like this Jimi Hendrix Black Light Posters?