Standalone Voltage Regulator
This week I dug through my electronics box and realized one of those Dual General-Purpose IC PC Boards from RadioShack would hold a LM7805 and requisite Caps. and LED very nicely. After a bit of soldering I had a working unit. Rather than just keep my new unit to myself I did a detailed write-up on how you can make this standalone regulator using parts from RadioShack!
I am also excited to announce that I have partnered with C Code Systems to provide component kits for these boards! While you can go to the store and get all the parts (any good hackers should already have most of them) C Code Systems has put together kits that include all the parts required for the project. I think this would be great for an introductory soldering or electronics course! Visit the C Code Systems Product Page