Found in a QST magazine from the 90s, this circuit broadcasts on different amateur radio bands depending on the coil. Data for the coil and crystal are provided next to the diagram.
This circuit was found in an American documentation for radio amateurs of the 80's. The...
This circuit was obtained from the September 1971 issue of Radio Electronics magazine. The power...
The signals from this circuit obtained from the 1965 Radio Shack documentation are picked up from...