Capacitor Filters are a Successful Project

I wanted to build a circuit that would filter out the humming problem from my power supply, so I used 4 capacitors and a circuit board to make a filter accessory for my walwart power supply. The power
supply has been cleaned out with this circuit, delivering filtered results. I will show you the circuit
that I constructed simply with just a circuit board. Remember you will need 6 or 9 Volt power supply
for this circuit. On the bottom of the text is the diagram of the walwart filters.