The Pocket-Sized Power Supply Tests Electronics Anywhere

The Pocket-Sized Power Supply Tests Electronics Anywhere


You don’t need much in the way of materials to get this to work, just a few capacitors, resistors, a perf board and a 9V battery connector. When you’re done, you’ll have a tiny little power supply that you can fit in your pocket that you can use to test all the weird electronics you find on your shopping adventures.

Pocket-Size Power Supply [Make Magazine]

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