Drum Trigger Sound Module A electric guitar pickup is basically just like a powerful microphone coil. For decades, dynamic microphones have already 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 situation is usually connected to the wire guard, that will be connected to the microphone amplifier's floor (see Rane's website for more discussion).
By and big, active microphones are extremely quiet devices consequently of the mix of transformer isolation and healthy, hanging transmission lines during, as well as protected, humbucking coils.
So why not guitars? Instruments are notoriously plagued by noise. Humbucking pickups are just an incomplete (though essential!) solution. Well-known answer would be to float practicing the guitar collection to a healthy result, being a microphone. The same idea was printed that 2001 patent program like this Drum Trigger Sound Module?