Electric Guitar Makes No Sound A electric guitar pickup is essentially much like a dynamic mike coil. For many years, energetic microphones have now been sent with the voice coil attached with the principal of the microphone's transformer, and perhaps not introduced to soil (‘floating'). The microphone's case is typically attached to the wire shield, that is connected to the microphone amplifier's floor (see Rane's website for more discussion).
By and big, active microphones are very calm units consequently of the mixture of transformer solitude and healthy, hanging indication lines throughout, along with shielded, humbucking coils.
Therefore why don't you guitars? Instruments are once affected by noise. Humbucking pickups are merely a partial (though crucial!) solution. Well-known solution is always to float your guitar collection to a balanced output, being a microphone. The same thought was published this 2001 patent application such as Electric Guitar Makes No Sound?