This converter has coils according to the reception and converted frequency bands. We found it in the October 1989 Radio Electronics magazine in an article that teaches its construction.
This circuit was found in an ancient American documentation. The components of the time are not...
August 2017 - Mouser Electronics is already stocked with Silicon Labs' I2C Si705x A10 interface...
In the figure we have the way to use a common multimeter as a field strength meter. RF shock...