Employing the XR2206 IC, this circuit was found in the May 1977 issue of Radio Electronics magazine. The formula next to the diagram gives the component values as a function of frequency.
We found this circuit in the March 1994 issue of Electronics Now magazine. The transistor is...
This circuit with two transistors was found in ancient European documentation. Transistors support...
Found in American documentation from the 1980s, this circuit makes use of components of the time,...