This circuit was found in old Maxim documentation. Check the availability of the IC if you are going to build the circuit. The output current is 1A.
This circuit activates an output, which can be a lock, only when a card containing the programmed code...
This circuit was found in Popular Electronics from 1993. The 1458 consists of a double 555. The...
This is a Serial In - Parallel Out or Serial Out [SIPO or SISO] shift register using the...