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Sound activated ( switch off) Switch

Written By MR HARI on Sabtu, 06 Maret 2010 | 17.50

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This circuit is a sound activated switch.After making a sound you can switch off this circuit.If you want to switch on this circuit after the sound use a relay for that.(That means When the relay switch on the circuit will switch off And when the relay switch off circuit will switch on)



Note

# This circuit operates with 3V power supply

# build this on a PCB

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