This circuit is from a 90's documentation. The circuit is simple, as it uses only two transistors, and the control is done by pressure switches. The indication is done by LEDs.
The oscillator shown in the figure can generate signals between approximately 3 and 15 MHz,...
This circuit was obtained in a QST magazine from the 90s. The circuit makes use of components that are...
Suggested by General Electric in 1966 documentation, this circuit uses unusual components today....