Digital Piano Wikipedia A guitar pickup is basically just like an energetic microphone coil. For many years, energetic microphones have already been sent with the style coil attached to the primary of the microphone's transformer, and perhaps not recommended to surface (‘floating'). The microphone's situation is usually linked to the cable guard, which can be connected to the microphone amplifier's floor (see Rane's web site for more discussion).
By and large, powerful microphones are extremely quiet products consequently of the mix of transformer solitude and healthy, flying transmission lines during, as well as protected, humbucking coils.
So why not guitars? Instruments are once affected by noise. Humbucking pickups are just an incomplete (though crucial!) solution. The most obvious answer is always to float the guitar pickup to a healthy production, as being a microphone. An identical thought was published that 2001 patent application like this Digital Piano Wikipedia?