This circuit has its frequency controlled by a 1MHz crystal. The circuit must be powered by a voltage of 5V. The capacitors must be ceramic. The generated signal is rectangular.
Found in a 1964 Electronic Design, this circuit shows how to modulate a signal with a dynamic low...
This circuit found in a 1988 documentation consists of a timer or sequential timer controller. The...
This conventional source with transistors was found in a 1989 documentation. The transistors must...