I'm from the Netherlands so I'm doing my best writing this in English! And this is my first Instructable so any comments or questions are welcome.
Step 1: Parts and Tools
1) Voltage Regulator 7805CT (datasheet)
2) 150 Ohm Resistor
3) 3mm LED
4) 100 µF, 25 Volt Electrolytic Capacitor
5) 10 µF, 63 Volt Electrolytic Capacitor
6) 100nF Small Capacitor (label is usually 104M, for more info of Capacitor color codes, go here)
7) 2-pin Screw Terminal
8) 7 pin connectors
9) 1 jumper
10) A piece of stripboard
11) Some wires (use hard wires which you can bend)
Look at the picture for the tools i've used, they are also pretty common.
Step 2: The Schematic
So the finished PSU will be plugged into the breadboard above the break, providing 2 different or one output voltages. I made an illustration of this to make it more clear for you. Note that your breadboard also must have an break in the power lines. And if it does not you can adjust the PSU to make it only provide 5 volt for example. But I guess it is still a nice PSU because of its small size.
And don't forget to put a wire from the top power line to the bottom power line of your breadboard, you must add wires at both sides of the breadboard, as shown in the breadboard example picture.
Step 3: Prepare the Stripboard
First you saw out a piece of stripboard, 8 dots in the horizontal copper line and 7 vertical. Then you make the cuts in the copper paths as shown in the illustration. You can use a stanley knife for this. Just make sure no copper is touching each other and make the cut width enough (something like 1mm) so that the solder thin will not drip over the cut during soldering. I didn't take picture when I was building mine, sorry for that, but I added a picture of the bottom of my finished one, maybe it makes it more clear. Alright! when you are done fixing the stripboard it is time to go to the soldering part!
Step 4: Soldering
Step 5: Test and Done!
Amsterdam, The Netherlands