Fender Jim Root Telecaster A guitar pickup is essentially just like a dynamic mike coil. For decades, powerful microphones have been sent with the style coil mounted on the primary of the microphone's transformer, and maybe not recommended to surface (‘floating'). The microphone's event is usually linked to the cable shield, which is connected to the microphone amplifier's soil (see Rane's website for more discussion).
By and large, dynamic microphones are very quiet units as a result of the mix of transformer isolation and balanced, flying transmission lines all through, as well as guarded, humbucking coils.
Therefore why don't you guitars? Instruments are once plagued by noise. Humbucking pickups are only an incomplete (though important!) solution. The obvious option would be to move your guitar collection to a balanced result, being a microphone. A similar strategy was published that 2001 patent request like this Fender Jim Root Telecaster?