Not properly closing a refrigerator door will no doubt invite huge electricity bills. This gadget, based on a 4060B CMOS binary counter IC, is an alert device that beeps if you leave the refrigerator ...

Systems requiring arithmetic operationson data usually performthose operations in binary form. As aresult, they must convert the data to BCDform for display purposes. Address-selectioninformation from ...

Here is a Crystal based pulse generator that gives 50Hz clock pulses from its output. This circuit can be used as the front end of circuits that require precision 50Hz pulses. The circuit uses two ...