Abstract: A timing circuit is provided for the headlights of an automotive vehicle to maintain the headlights in an illuminated condition for an adjustable, predetermined time after the vehicle ignition is turned off. The timing circuit is housed in an enclosed casing that includes an access port that allows insertion of a tool to effectuate timing adjustment. The casing includes a locking mechanism for immobilizing insulated electrical wires relative to the casing at locations displaced from the contact terminations of those wires.

Abstract: A system for controlling the pilot and main burner gas valves of a gas furnace or the like, including a pilot spark igniter and a pilot flame sensor. A relay having a first standby mode providing power to the spark igniter circuit when the thermostat switch is closed and the pilot valve solenoid is energized, and a second operating mode disconnecting power from the spark igniter circuit and providing power to the main valve solenoid when a flame is sensed at the pilot burner. A fast responding, stable and failsafe circuit for operating the relay utilizing a 24 volt supply, with a 48 volt supply provided only for the flame sensor.