This circuit is intended to switch high frequency antennas using common diodes. The circuit is from an 80's documentation appearing in other versions in this same section of the site.
Found in a 90s American documentation, this circuit that was used in cars of the time, detects low...
This circuit with an integrated circuit of the time was found in the magazine Radio Electronics of April...
An useful configuration in applications that involve function monitoring is the limit comparator. In the...