88 Weighted Key Keyboard A electric guitar pickup is essentially similar to a vibrant mike coil. For many years, powerful microphones have already been sent with the voice coil attached to the primary of the microphone's transformer, and not called to surface (‘floating'). The microphone's event is usually connected to the cable shield, which will be attached to the microphone amplifier's surface (see Rane's website for more discussion).
By and big, active microphones are extremely quiet units consequently of the combination of transformer isolation and healthy, flying transmission lines for the duration of, as well as shielded, humbucking coils.
So why don't you guitars? Guitars are once affected by noise. Humbucking pickups are merely an incomplete (though important!) solution. Well-known solution would be to move practicing the guitar pickup to a healthy production, as being a microphone. The same idea was published this 2001 patent application such as 88 Weighted Key Keyboard?