Primacoustic London 8 A electric guitar pickup is essentially just like an energetic microphone coil. For many years, powerful microphones have now been wired with the style coil attached to the primary of the microphone's transformer, and perhaps not introduced to surface (‘floating'). The microphone's event is usually attached to the wire guard, that will be connected to the mike amplifier's ground (see Rane's website for more discussion).
By and big, vibrant microphones are very quiet units as a result of the combination of transformer isolation and balanced, floating transmission lines throughout, in addition to protected, humbucking coils.
So you will want to guitars? Instruments are notoriously plagued by noise. Humbucking pickups are only an incomplete (though important!) solution. Well-known solution would be to move the guitar pickup to a balanced output, just like a microphone. A similar idea was printed that 2001 patent software like this Primacoustic London 8?