An Output Jack (áwtpʊ̀t ǰǽk) is the mechanism where a cord is inserted into an electric or amplified acoustic guitar. The output jack provides the signal connection between the guitar pickups and the guitar cord that carries the signal to the amplifier. Output jacks may be placed on the face of the guitar (such as on a Fender Stratocaster or Gibson SG) or on the lower-rear (such as on a Gibson Les Paul or Fender Telecaster). Most guitar jacks provide a two-conductor mono signal, but a few guitars are wired in a three-conductor stereo configuration.