1950s Electric Guitar A guitar pickup is basically similar to a vibrant mike coil. For decades, energetic microphones have now been sent with the voice coil attached with the principal of the microphone's transformer, and perhaps not recommended to ground (‘floating'). The microphone's event is typically connected to the wire guard, that will be connected to the mike amplifier's floor (see Rane's website for more discussion).
By and big, vibrant microphones are extremely quiet products as a result of the combination of transformer isolation and balanced, suspended transmission lines for the duration of, along with guarded, humbucking coils.
So why don't you guitars? Instruments are notoriously plagued by noise. Humbucking pickups are just a partial (though important!) solution. The most obvious option is always to float your guitar pickup to a balanced productivity, just like a microphone. The same idea was printed that 2001 patent software like this 1950s Electric Guitar?