ALARM_CIRCUIT

Published:2009/7/1 3:43:00 Author:May | From:SeekIC

Temperature, light, or radiation sensitive resistors up to 1 megohm readily trigger the alarm when they drop below the value of the preset potentiometer. Alternately, 0.75 V at the input to the 100 kΩ triggers the alarm. Connecting SCS between ground and -12 V permits triggering on negative input to GA.



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