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.
June 2017 - These new AVX capacitors are suitable for filter applications, considerably reducing...
This circuit is from Mullard documentation from 1969. Transistors support current equivalents. Output...
This low drift or offset circuit is from an 80's documentation. The configuration can be made with...