Second Parallel Loop Alarm Circuit Diagram

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I share with you first Parallel Loop Alarm Circuit Diagram and to day i share with you second Parallel Loop Alarm Circuit Diagram. This circuit is 4 parallel switch circuit.  Four parallel switches are used to monitor four positions. When a closure occurs on any switch, SCR1 triggers, which sounds the alarm. The alarm should be of the non interrupting type.


Second Parallel Loop Alarm Circuit Diagram

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