Power Amplifier Ic La4440 A electric guitar pickup is basically just like an energetic mike coil. For many years, dynamic microphones have now been wired with the style coil attached with the principal of the microphone's transformer, and perhaps not referenced to floor (‘floating'). The microphone's situation is normally attached to the cable guard, which can be attached to the mike amplifier's ground (see Rane's site for more discussion).
By and large, powerful microphones are very quiet products consequently of the mixture of transformer solitude and balanced, suspended transmission lines through the duration of, along with protected, humbucking coils.
So why don't you instruments? Instruments are notoriously plagued by noise. Humbucking pickups are just a partial (though crucial!) solution. Well-known alternative is to float your guitar pickup to a healthy production, just like a microphone. A similar thought was printed this 2001 patent application like this Power Amplifier Ic La4440?