1. A COAXIAL CROSS-POINT RELAY COMPRISING AN ENVELOPE INCLUDING A CUP-SHAPED ACTUATOR SUPPORT SHELL AND A CUPSHAPED FIXED-CONTACT SUPPORT SHELL HERMETICALLY UNITED TO THE ACTUATOR SUPPORT SHELL, EACH OF SAID CUP-SHAPED SHELLS HAVING A BOTTOM AND A CYLINDRICAL SIDE WALL, A PLURALITY OF SPACED CONDUCTORS EXTENDING INSULATEDLY AND HERMETICALLY THROUGH THE BOTTOM OF SAID FIXED-CONTACT SUPPORT SHELL AND TERMINATING WITHIN THE ENVELOPE IN A PLURALITY OF SPACED FIXED CONTACT POINTS, A MOBILE CONTACT ASSEMBLY DISPOSED WITHIN THE ENVELOPE AND INCLUDING PAIRS OF RESILIENT CONTACT BLADES ARRANGED TO CONDUCTIVELY CONNECT A PLURALITY OF PAIRS OF SAID FIXED CONTACT POINTS WHEN THE MOBILE CONTACT ASSEMBLY IS MOVED IN ONE DIRECTION AND TO CONDUCTIVELY CONNECT A PLURALITY OF DIFFERENT PAIRS OF SAID FIXED CONTACT POINTS WHEN THE MOBILE CONTACT ASSEMBLY IS MOVED IN THE OPPOSITE DIRECTION, AND AN ACTUATOR ASSEMBLY MOVABLY SUPPORTED ON SAID CUP-SHAPED ACTUATOR SUPPORT SHELL AND ENGAGING SAID MOBILE CONTACT ASSEMBLY TO EFFECT MOVEMENT THEREOF IN A SELECTED DIRECTION.