The illuminated LEDs in this circuit produce a chasing pattern when the PUSH BUTTON NO(at the bottom of the circuit before the capacitor) is tapped,this is similar to the running LEDs display in video shops. In fact the effect is called: "Running Hole." All transistors will try to come on at the same time when the power is restored due to the fluctuation in current caused by the PUSH BUTTON NO, but some will be faster due to their internal characteristics and some will get a different turn-on current due to the exact value of the 22uF capacitors
*NOTE:
Tap the PUSH BUTTON NO only ONCE
