Retractable rotary switch cell

A push-pull rotary switch comprising:

• a board having a first circuit on a top side and a second circuit on a bottom side, the first and second circuits each having a ground pad and at least one contact pad;
• a first conductor positioned above the top side of the board and operable for contacting the ground pad and a contact pad of the first circuit;
• a second conductor positioned below the bottom side of the board and operable for contacting the ground pad and a contact pad of the second circuit;
• a shaft extending along an axis through the first conductor, the board, and the second conductor, the shaft being rotatable about the axis and moveable along the axis between inward and outward positions, the shaft connected to the first and second conductors such that the first and second conductors rotate about the axis as the shaft rotates and move along the axis as the shaft moves along the axis, wherein the first conductor contacts the ground pad and a contact pad of the first circuit to electrically connect the ground pad to the contacted contact pad of the first circuit when the shaft is in the inward position, wherein the second conductor contacts the ground pad and a contact pad of the second circuit to electrically connect the ground pad to the contacted contact pad of the second circuit when the shaft is in the outward position;
• a ground circuit trace electrically connected to a ground source;
• a first circuit trace electrically connected to the ground pad of the first circuit and a second circuit trace electrically connected to the ground pad of the second circuit;
• and
• a contactor operable to be moved as the shaft moves along the axis between the inward and outward positions, wherein the contactor connects the ground circuit trace to at least one of the first and second circuit traces at all times as the shaft moves along the axis.