Guitar Pedal Switch A guitar pickup is actually much like a dynamic mike coil. For decades, dynamic microphones have now been wired with the voice coil attached to the principal of the microphone's transformer, and not recommended to soil (‘floating'). The microphone's event is usually connected to the cable shield, that is attached to the mike amplifier's floor (see Rane's web site for more discussion).
By and big, active microphones are extremely quiet units as a result of the mixture of transformer solitude and balanced, flying sign lines through the duration of, as well as protected, humbucking coils.
Therefore why don't you guitars? Instruments are once overwhelmed by noise. Humbucking pickups are only an incomplete (though important!) solution. The most obvious solution is always to float your guitar pickup to a balanced production, as being a microphone. A similar strategy was printed that 2001 patent request like this Guitar Pedal Switch?