Guitar Pedals Reverse A electric guitar pickup is essentially similar to a powerful mike coil. For many years, active microphones have been sent with the voice coil attached to the primary of the microphone's transformer, and maybe not called to ground (‘floating'). The microphone's event is usually attached to the cable shield, that will be linked to the mike amplifier's soil (see Rane's website for more discussion).
By and big, dynamic microphones are very quiet products consequently of the mix of transformer solitude and balanced, flying sign lines throughout, in addition to protected, humbucking coils.
Therefore why not instruments? Guitars are once plagued by noise. Humbucking pickups are merely a partial (though important!) solution. The most obvious solution is to move your guitar collection to a balanced output, just like a microphone. A similar idea was published this 2001 patent application such as Guitar Pedals Reverse?