Small time intervals up o some minutes can be achieved with this circuit. Only incandescent lamps can be used and the SCR must be mounted on heatsink. C1 is an electrolytic capacitor rated to 200 V if the power supply line is 110 or 117 VAC.
Small time intervals up o some minutes can be achieved with this circuit. Only incandescent lamps can be used and the SCR must be mounted on heatsink. C1 is an electrolytic capacitor rated to 200 V if the power supply line is 110 or 117 VAC.