I assembled the attached circuit. I have at least one problem with the circuit. When I de-energize Relay 1 by opening the switch, the strobe led blinks once and then stops (if I connect a volt meter from output of regulator to negative of capacitor, the light will slowly blink). After the light blinks once, the voltage at the output of the regulator (LM317AEMP/NOPBCT-ND) reads about 3 volts. Prior to opening the switch, the output of the regulator reads 12.2 volts. The strobe light blinks steady and fast when I wire it directly to a 12 VDC power adapter. What is making the voltage regulator get stuck at 3 volts instead of maintaining the 12.2 volts it is suppose to yield?