Description
Circuit showing a Touch Sensitive Alarm .Here i have used bc 548 transistor for switching and bc 107 for sound generation
.You need a power supply
Click here to view the power supply circuit diagram
Components Required
Resistor
680R ,100 K
Transistor
BC 548, BC 107 - 2
Loud Speaker
Copper plate
Circuit showing a Touch Sensitive Alarm .Here i have used bc 548 transistor for switching and bc 107 for sound generation
.You need a power supply
Click here to view the power supply circuit diagram
Components Required
Resistor
680R ,100 K
Transistor
BC 548, BC 107 - 2
Loud Speaker
Copper plate
Source by : http://www.electronics-circuits.in/2012/03/touch-sensitive-alarm-circuit-diagram.html#more
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