With a 12 V supply and a 2 ohms load, this circuit can provide a power of the order of 8 W. The integrated circuit must be mounted on a heat sink. The source must provide at least 3 A.
This circuit can be used in alarms by activating a relay or a current load that depends on the...
This circuit is from the 1968 ARLL documentation. The MOSFET admits equivalent and the coil...
Figure bellow shows how one of the two separated counters found inside the 4518 is used as a...