9V Battery clip with DC jack

Many amp boards, and other small project boards, have a tip positive 2.1 x 5.5 mm DC power receptacle. If you don't have an AC/DC power adapter you could solder together a 9 volt clip to a DC plug for battery power. This adapter cord eliminates the need for solder so you can quickly make your project truly portable. One good example is a display that plays a short message when someone pushes a button. This adapter cord also works great for premade electronics.

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