Ten most needed circuits for the DIYer
Greg, our friend over at DIYlive.net, has a neat writeup about some of the more usefull circuits for the technically inclined. I know that I have put some of these nifty little circuits to good use throughout my past projects and will continue to do so in the very near future. You could look at these simple connections as the fundamental building blocks for your own DIY projects.
A few of my personal favorites:
10. The 5v regulator
9. LED
8. Transistor as a swtich
