Lehle P Split A electric guitar pickup is actually similar to an energetic mike coil. For many years, energetic microphones have been wired with the style coil mounted on the principal of the microphone's transformer, and maybe not called to ground (‘floating'). The microphone's situation is normally attached to the cable guard, that will be attached to the mike amplifier's ground (see Rane's site for more discussion).
By and big, vibrant microphones are extremely quiet units as a result of the combination of transformer solitude and healthy, hanging transmission lines for the duration of, in addition to protected, humbucking coils.
So why don't you guitars? Instruments are notoriously plagued by noise. Humbucking pickups are only an incomplete (though essential!) solution. Well-known answer is always to float practicing the guitar collection to a balanced result, being a microphone. The same strategy was printed that 2001 patent application like this Lehle P Split?