Guitar Wiring Tone Cap A best guitar pickup is essentially similar to a dynamic microphone coil. For many years, dynamic microphones have been sent with the voice coil mounted on the primary of the microphone's transformer, and maybe not referenced to floor (‘floating'). The microphone's case is typically linked to the cable guard, that is attached to the mike amplifier's surface (see Rane's site for more discussion).
By and large, vibrant microphones are very quiet products consequently of the mixture of transformer isolation and healthy, hanging transmission lines during, in addition to shielded, humbucking coils.
Therefore why don't you guitars? Guitars are notoriously overwhelmed by noise. Humbucking pickups are only a partial (though crucial!) solution. The most obvious answer is always to move your guitar pickup to a balanced output, being a microphone. The same strategy was printed that 2001 patent application like this Guitar Wiring Tone Cap?