be attached to the motherboard using any of a wide variety of suitable mechanisms including for example mechanical connections glue embedding in the motherboard the manner in which one end of the spring contact 600 allows it to flex is a matter of design choice as will be easily understood to those skilled in the art in addition other mechanisms for providing a movable contact can be used in accordance with the present invention including other spring loaded switches such as a micro switch or a knife switch assembly such other suitable movable contact members should provide a movable portion that allows the motherboard to provide the desired make before break function when inserting or removing an equalizer into or from the motherboard fig9 is a bottom view of an example motherboard similar to that schematically shown in fig7 in fig9 the spring contact 600 provides a rf connection between the pins 610 and 615 as described above with respect to fig7 fig1 is a top view of an example mother board similar to that schematically shown in fig7 in fig1 sockets 415 420 425 and 430 are electrically connected to the corresponding pins 625 620 610 and 615 of an equalizer board the sockets 415 420.