Dually
A Lace Sensor "Dually" is effectively a double-coil unit combining two Lace Sensor single-coil pickups in a humbucker configuration. Both coils of the pickup are wired individually and left that way, so that the user may choose whether to wire them up as a humbucker, or one of several other ways.
The humbucking Lace Sensors were used as a standard equipment material on the original Jeff Beck Stratocaster, the Telecaster Plus/Deluxe Plus and the Stratocaster Ultra, manufactured by Fender in the early '90s, as well on some Custom Shop models such as the Set Neck and Contemporary Stratocaster guitars.
Usually a humbucker needs to comprise at least two coils with equal output, in order to produce the noise-cancelling effect. Lace Sensors are able to use mismatched coils because as single-coil pickups they are low in noise.
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