We found this circuit in an Analog Devices documentation from the 1990s. It provides an approximation for the sine ꬾ of an input voltage. It is used in analog computing.
This circuit was found in an American publication called Ham Radio. The circuit uses still current...
From an audio signal, this circuit gets two signals of the same amplitude and opposite phases....
Found in an Electronic Design from 1968 this circuit generates a linear sawtooth signal modulated...