This invention is a kit from which a love seat type sofa can easily be assemble by a consumer at home with simple tools. The orthopaedic device has at least one pressure applying element configured to apply pressure to soft tissue adjacent to the bone fracture and a holder configured to engage, in an engaged configuration, soft tissue adjacent to the bone fracture and, while in the engaged configuration, to permit adjustable positioning and securing the at least one pressure applying element to the holder. Meanwhile, the same purpose can also be served by increasing the current at the input side of the DC current mirror. The combined non-linear capacitances of the amplifier MOSFET and predistorter MOSFET provide predistortion that promotes cancellation of the distortion or nonlinearity contributed by the amplifier MOSFET alone.