Indicated for alarm applications, this circuit was found in the December 1976 issue of Radio Electronics magazine. The circuit is for 12 V car applications.
The coils of this circuit will determine the transmission frequency of this device. The circuit is from...
This project was described in Radio Electronics from December 1962. The circuit is based on a...
Found in a 90s General Electric documentation, this circuit has a drain current of just 1.5 uA....