Saturday, January 24, 2009


MOSQUITO REPELLENT

This circuit is based on the popular timer IC 555. This is a unique circuit that sends the mosquitoes flying away from your room. In this circuit, the IC 555 works as an oscillator that outputs a frequency range of minimum 200Hz to a maximum frequency range of 62 KHz. The output frequency can be adjusted by the preset R-2 connected in the circuit. A high quality speaker should be used with this circuit.


PARTS LIST::::
1/ IC 555
2/ Resistance : 220E, 1ME, Control- 5K
3/ Capacitor :0.005, 0.1, 100MF/10V, Loud speaker.

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