Gibson Guitar Hat A electric guitar collection is basically much like an energetic microphone coil. For many years, dynamic microphones have now been sent with the style coil attached to the principal of the microphone's transformer, and not recommended to surface (‘floating'). The microphone's event is usually linked to the wire guard, which will be connected to the mike amplifier's surface (see Rane's website for more discussion).
By and large, energetic microphones are extremely calm units as a result of the mix of transformer isolation and balanced, hanging transmission lines for the duration of, as well as guarded, humbucking coils.
So why don't you guitars? Instruments are once affected by noise. Humbucking pickups are only a partial (though important!) solution. The most obvious option is to float the guitar pickup to a balanced output, as being a microphone. The same idea was published this 2001 patent request such as Gibson Guitar Hat?