Led Zeppelin 1 Album A best guitar pickup is essentially similar to a powerful microphone coil. For decades, energetic microphones have been sent with the style coil attached with the principal of the microphone's transformer, and perhaps not referenced to soil (‘floating'). The microphone's case is normally connected to the wire shield, which can be connected to the mike amplifier's floor (see Rane's website for more discussion).
By and large, powerful microphones are extremely quiet devices consequently of the combination of transformer solitude and healthy, floating indication lines all through, along with guarded, humbucking coils.
So why not guitars? Instruments are notoriously overwhelmed by noise. Humbucking pickups are only an incomplete (though important!) solution. The obvious solution would be to move the guitar pickup to a healthy production, as being a microphone. The same thought was printed this 2001 patent program such as Led Zeppelin 1 Album?