This circuit for analog telephones from the 90s was found in documentation from the time. It lights up a remote LED when the extension is in use.
The circuit shown in the figure is based on the ST Microelectronics TDEO0160 (www.st.com) and...
The circuit illustrated in the figure can be used to detect earthquakes or vibrations of...
January 2017 - Texas Instruments is making available through Mouser Electronics the new Buck...