Abstract: An electrode socket assembly for receiving gas discharge tubes is disclosed. The electrode socket assembly is designed for mounting along a generally flat surface. The assembly includes a barrier panel designed to lie along the flat surface. A housing having a base and a socket is mounted against the barrier panel. A leaf-spring is attached to the base and extends upwardly into the interior of the socket to cooperate with the flexible outer walls of the socket for securely holding the gas discharge tube electrode when inserted into the socket. Additionally, the flexible outer walls of the socket may include ribs that also help secure the gas discharge tube.