School Bell Alarm Projects

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School Bell Alarm
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School Bell Alarm
In the kit School Bell Alarm when peon wants to
beep the school bell then they have to press the
momentary switch then school bell is on for few
second according to the value of resistance and
capacitance. We can change the on time the
changing by capacitor and resistance.In this kit
School Bell Alarm the first block is power supply
in which the input is 230V AC which is step down
using the transformer (12-0-12) To Know more,
please visit www. Kitsguru.com
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