This circuit uses an impact sensor transistor called Pitran rare today. The circuit is from 1969 American documentation.
Within a range of values, this circuit converts input voltages into corresponding currents. The...
This second-order low-pass Salen-Key filter was obtained from an American 1980s documentation. Formulas...
This circuit is from 1971 documentation. It generates a ramp given by the input signal. The FET...