The circuit is of the Motorola Linear Databook of 1990. The power source must be symmetrical and the characteristics of the circuit are given next to the diagram.
Found in a 90's EDN, this circuit generates signals in the frequency range given by the graph. The...
Found in Harris' 90s documentation, this circuit uses a zener as a stabilizer. The signals...
We found this circuit in a 90s Electronic Design. The circuit is based on a quadruple operational...