And that’s it. Two external parts, a resistor and a capacitor, and you’ve got a voltage-controlled square wave oscillator. Now all we need is a voltage source to control it. First up ...

Well, instead of charging and discharging the timing capacitor through the feedback resistor as we’ve ... In short, we’ll end up with a voltage waveform on the input here in yellow, and ...

The capacity of a capacitor to store electrical charge is known as the capacitance of that capacitor. Capacitors play three important roles in an electronic circuit: charging and discharging; ...