We found this circuit in an Electronic Engineering of the 90s. The circuit can be implemented with any logic and next to the diagram the truth table for the indications is given.
We found this circuit in an American 1980s documentation. Transistors may be general purpose...
The 1 kHz Wien bridge oscillator presented was found in the 1993 Linear Technology Applications. The...
This circuit was found in a 1968’s publication and uses germanium transistors. The characteristic...