Recent content by dasari

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    Police Siren

    I built it.It is not even giving sound out. My bad luck is voltage doubler also needs input of 5V to 15V
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    Police Siren

    Can this circuit work with input of 3.66V ??. BecausE I want to attach this to a fire alarm.
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    Mosquito Repeller

    Thanks for correcting me.now I changed in my circuit also now it is quite than before.Anyway thanks for clarifying my doubt
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    Mosquito Repeller

    unfortunatly there is no negative supply for piezo,how can it work?? in breadboard layout
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    Mosquito Repeller

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    Mosquito Repeller