This circuit is from a 1968 Electronic Design. The characteristics of the output transformer are not given and the transistors are of the time. The circuit provides a power of a few watts.
The components of this filter are calculated using conventional formulas (see mathematics section of...
Found in a 1963 documentation, this circuit employs germanium transistors of the time. Transformer and...
The oscillator shown in the figure has the formulas next to the diagram for calculating the...