Speaker Cable Next To Power Cable A guitar pickup is basically similar to an energetic microphone coil. For decades, energetic microphones have now been sent with the style coil attached to the principal of the microphone's transformer, and maybe not introduced to ground (‘floating'). The microphone's case is normally attached to the wire shield, that is linked to the microphone amplifier's ground (see Rane's site for more discussion).
By and big, dynamic microphones are very quiet products as a result of the mix of transformer solitude and healthy, hanging transmission lines throughout, in addition to protected, humbucking coils.
So why not instruments? Guitars are once affected by noise. Humbucking pickups are merely an incomplete (though important!) solution. The obvious answer is to move your guitar pickup to a healthy output, as being a microphone. The same idea was printed that 2001 patent program such as Speaker Cable Next To Power Cable?