Hi all, I haven't touched electronics since some basic EE classes I took in undergrad many years ago. I decided to hop back in and try a few things. I'd like to build some circuits either using a breadboard or soldering onto a perf board, but I don't want to invest in a test bench power supply. Can I just use a common wall adapter that you might use to power a router like this: http://www.amazon.com/D-Link-AF1205-B-Power-Adapter-120V/dp/B004WAUX4W/ref=pd_sim_sbs_e_7 If so, what precautions should I take? what parts do I need to connect the adapter to my breadboard or perf board? I'm sure I need the female end of the connector but I don't know what it's called or where to start looking. Thanks!

 

You will need a walwart and some kind of regulator like maybe the 7805. If you are from the US, you can find those connectors at radio shack.

 

I'm guessing I would need something like this? http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_137673_-1 sorry for the newb question btw

 

If you are speaking of a solderless breadboard, you can also use something like this. http://www.karlssonrobotics.com/sho...tick-5v3-3v/?gclid=CJD0j6mp87QCFQGvnQodDjMA-w

I haven't used that specific one, but have used similar units. You still need a wall wart, but this adapter makes it convenient to connect the wall wart to your breadboard.

 

You can also order or find a wall wart that has a built in regulator. Look at Jameco and you will see an assortment of wall warts that are not regulated, and another group that are regulated. Part number 309876, for example.

 

I'm kinda confused, what's the difference between this: http://www.amazon.com/D-Link-AF1205-B-Power-Adapter-120V/dp/B004WAUX4W/ref=pd_sim_sbs_e_7 and a wal wart? What kind of connector would I need to connect that to some wires? Then I'd need a regulator and maybe a capacitor to smooth out any power bumps?

 

Wall wart is a generic slang term for a power adapter like the one you linked to.

 

...I don't want to invest in a test bench power supply...

Find a PC that's in a pile at a recycling center and pull the power supply. It'll make a fine lab bench supply, with regulated 5, +12 and -12V terminals.