This circuit is recommended for alarm systems since it has a good output stage. The circuit is from a Radio Electronics magazine from October 1992.
The presented circuit monitors a line indicating if it is busy if there is an extension. The...
July 2017 - The Texas Instruments step-down converter module of the same name IC can now be...
This circuit uses the LT6106 from Linear Technology, from where we took it from a 2005 manual....