This circuit was found in Motorola's 1967 documentation. The circuit makes use of power transistors of the time. For pulse pickup an appropriate pickup coil is used.
The purpose of this circuit is to monitor the output voltage of a power supply. The under and over...
The basic idea of this 1989 circuit is to trigger a relay for a while when a call signal occurs on...
Found in a 1980s documentation, this amplifier features high common mode rejection. The operating...