I am an absolute noobe. I would like to make a power supply for my breadboard. A nearby store sells used AC/DC adapters for very little (some as cheap as a $1) - wide assortment of voltage and current output. I was thinking that could use the adapter as a power supply for my breadboard. I researched this on the net and have found some projects that do just this...with voltage regulator, etc...(see for example **broken link removed**).
My question is, is this safe to do. The idea of playing around with AC concerns me...I am hoping that it is relatively safe as I will be connecting the DC side to breadboard.
Thought, suggestions, advice?
Thanks.