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.
Standing wave ratio or SWR is an important measure of whether all power from a transmitter is being...
This circuit or practical idea comes from a time when cheap solar cells were not available (1992). What is...
This circuit was found in a 1980s documentation for amateur radio. The circuit makes use of...