This oscillator produces a rectangular signal in the range of 100 Hz to 1k Hz but with the change of the capacitor, we can obtain other frequency ranges. Fine tuning of the frequency is done in the 100k ohms potentiometer. In this circuit, only one of the 4093's four ports is used. The positive supply of 3 to 15 V is made on pin 7 and the ground is on pin 14.
