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Power supply failure alarm -designed by Naveen P N Click here for Circuit Diagram.
Most of the power supply failure indicator
circuits need a separate power supply for themselves. But the alarm
circuit presented here needs no additional supply source. It employs
an electrolytic capacitor to store adequate charge, to feed power
to the alarm circuit which sounds an alarm for a reasonable duration
when the supply fails.
If there are any problems please contact firstname.lastname@example.org
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