Xiaomi Handwriting Keyboard A best guitar collection is essentially just like a dynamic mike coil. For decades, powerful microphones have already been sent with the voice coil attached to the primary of the microphone's transformer, and perhaps not introduced to ground (‘floating'). The microphone's event is usually attached to the wire shield, that is attached to the microphone amplifier's surface (see Rane's site for more discussion).
By and big, energetic microphones are very quiet devices consequently of the mix of transformer isolation and balanced, suspended transmission lines for the duration of, along with protected, humbucking coils.
So why don't you guitars? Guitars are notoriously affected by noise. Humbucking pickups are only a partial (though important!) solution. The obvious solution is to move your guitar collection to a healthy productivity, as being a microphone. An identical idea was printed this 2001 patent request like this Xiaomi Handwriting Keyboard?