Make a Tiny 9V Battery Power Switch From Parts of an Old 9V Battery

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When you’re building your own custom electronics projects, a simple power switch isn’t always easy to find. If you have some DIY projects that use 9V batteries , this super small power switch is fairly easy to build and is mostly made from an old 9V battery. Read more…

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Make a Tiny 9V Battery Power Switch From Parts of an Old 9V Battery

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