Electro Harmonix Octave Multiplexer A best guitar pickup is actually just like a vibrant mike coil. For decades, energetic microphones have been wired with the voice coil attached to the primary of the microphone's transformer, and maybe not referenced to floor (‘floating'). The microphone's situation is typically attached to the cable guard, which is linked to the microphone amplifier's surface (see Rane's web site for more discussion).
By and large, powerful microphones are extremely calm units consequently of the mixture of transformer solitude and balanced, hanging transmission lines for the duration of, in addition to guarded, humbucking coils.
So why not guitars? Instruments are once affected by noise. Humbucking pickups are just an incomplete (though crucial!) solution. The obvious option is always to float practicing the guitar collection to a healthy result, as being a microphone. A similar idea was published this 2001 patent application such as Electro Harmonix Octave Multiplexer?