Kiss Ace Frehley A best guitar pickup is actually just like a dynamic mike coil. For decades, dynamic microphones have already been wired with the voice coil attached with the principal of the microphone's transformer, and not referenced to surface (‘floating'). The microphone's situation is typically attached to the wire guard, which will be attached to the microphone amplifier's soil (see Rane's web site for more discussion).
By and big, active microphones are very quiet devices as a result of the mix of transformer solitude and healthy, flying sign lines throughout, along with guarded, humbucking coils.
So why don't you instruments? Instruments are notoriously plagued by noise. Humbucking pickups are just a partial (though essential!) solution. Well-known alternative is always to float your guitar pickup to a balanced result, as being a microphone. The same idea was published that 2001 patent program such as Kiss Ace Frehley?