Johnny B Goode Sheet Music A guitar pickup is actually similar to an energetic microphone coil. For decades, active microphones have now been sent with the voice coil attached to the primary of the microphone's transformer, and perhaps not introduced to floor (‘floating'). The microphone's situation is normally attached to the cable shield, which can be attached to the microphone amplifier's floor (see Rane's site for more discussion).
By and large, energetic microphones are very quiet devices consequently of the combination of transformer solitude and healthy, hanging transmission lines all through, in addition to shielded, humbucking coils.
Therefore why not guitars? Instruments are once affected by noise. Humbucking pickups are merely a partial (though essential!) solution. The most obvious solution is always to move the guitar pickup to a balanced productivity, just like a microphone. The same thought was printed that 2001 patent application such as Johnny B Goode Sheet Music?