Emergency Light and Alarm Circuit Electronic Components List: R1____________220K 1/4W Resistor R2____________470R 1/2W Resistor R3____________390R 1/4W Resistor R4______________1K5 1/4W Resistor R5______________1R 1/4W Resistor R6_____________10K 1/4W Resistor R7____________330K 1/4W Resistor R8____________470R 1/4W Resistor R9____________100R 1/4W Resistor C1____________330nF […]