Guitar Effects Harp A electric guitar pickup is actually just like an energetic microphone coil. For many years, active microphones have now been sent with the style coil attached to the primary of the microphone's transformer, and perhaps not introduced to surface (‘floating'). The microphone's situation is usually attached to the cable shield, that is attached to the mike amplifier's surface (see Rane's website for more discussion).
By and large, vibrant microphones are very quiet units as a result of the mixture of transformer isolation and healthy, hanging transmission lines during, in addition to shielded, humbucking coils.
So why not instruments? Guitars are notoriously affected by noise. Humbucking pickups are merely an incomplete (though important!) solution. Well-known solution is always to float the guitar pickup to a healthy productivity, being a microphone. A similar thought was published this 2001 patent program like this Guitar Effects Harp?