Electric Guitar Open Chords A guitar pickup is basically just like a vibrant microphone coil. For decades, vibrant microphones have been sent with the voice coil attached to the primary of the microphone's transformer, and maybe not introduced to floor (‘floating'). The microphone's event is typically linked to the wire guard, that is attached to the microphone amplifier's surface (see Rane's website for more discussion).
By and big, energetic microphones are very calm units consequently of the combination of transformer isolation and balanced, hanging transmission lines during, along with shielded, humbucking coils.
Therefore why don't you instruments? Instruments are once plagued by noise. Humbucking pickups are only a partial (though important!) solution. The most obvious alternative is to move your guitar pickup to a healthy output, being a microphone. The same thought was published that 2001 patent application such as Electric Guitar Open Chords?