j37prakash Posted August 2, 2011 Report Share Posted August 2, 2011 I need to design a circuit to switch on a warning lamp or sound a hooter when a door is opened and the reed switch is activated by the magnet. I have herewith attached the circuit diagram of the test setup. My problem is that the reed switch fails within a few (3 or 4) operations though the current measured is in very small units. Kindly advise me how to go about it to solve the problem. Quote Link to comment Share on other sites More sharing options...
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