Abstract
The operation and performance of a new type of circuit for square-wave generation is presented. The circuit is of two high
β
transistors in common-collector configuration, the operation of which is controlled by a single timing capacitor. The mark to space ratio of the square wave can be adjusted over wide ranges. The rise and fall times of the output pulses can be made to depend almost entirely on the switching-speed of the transistor and are independent of the values of the elements used in the timing network. The frequency of oscillation can be varied by changing one parameter only. These features make the circuit described very useful in many applications and particularly in the design of wide range square-wave generators.