Strat Wiring With Two Tone Caps A guitar pickup is essentially just like a vibrant mike coil. For decades, dynamic microphones have been wired with the style coil attached to the primary of the microphone's transformer, and not recommended to soil (‘floating'). The microphone's situation is usually connected to the cable guard, which is attached to the mike amplifier's soil (see Rane's site for more discussion).
By and large, dynamic microphones are extremely quiet devices as a result of the mixture of transformer isolation and balanced, hanging sign lines throughout, in addition to shielded, humbucking coils.
So why not instruments? Guitars are notoriously affected by noise. Humbucking pickups are just a partial (though important!) solution. The obvious answer is always to float the guitar collection to a balanced production, as being a microphone. An identical thought was printed that 2001 patent software like this Strat Wiring With Two Tone Caps?