This instructable will teach you to take junk wall warts from thrift stores and hack the circuit to give you what you need. Not the connector but the power itself. I never pay more than a buck for one using this mod.
I have been doing electronics experimentation for decades and often find a major stumbling block for my small projects a suitable power supply.
We can very simply change a single part and "make" what we need.
Need 5 volts? 9 volts? 12.6? 13.5 or any number in between? Here is your answer.
Should cost about 1 dollar!
Here we go.
These little wall warts come in 2 styles. Switching and Linear.
We need to use switching type for this hack.
How do I tell the difference?
Linear supplies, which we don't want are usually heavy in the hand and rated input is 110 - 120 VAC 60 HZ
Switching are rated 100-240 VAC 50-60 Hz, thats what we want.
NEVER WORK ON ANY LINE OPERATED EQUIPMENT WHILE PLUGGED IN. ELECTROCUTION IS POSSIBLE AND INJURY OR DEATH MAY RESULT. BE SMART, BE CAREFUL.