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Replace the battery on a desktop gadget with USB power

Step 3Make it Permanent

Make it Permanent
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You don't really need this last step, but I wanted to enclose the project and to have my breadboard back. I soldered the same circuit onto a piece of project board with the same layout as the breadboard. You could probably just solder things straight together if you don't have any project board around.
I used an old chewing gum tin lined with electrical tape where it matters and some rubber grommets from an old hard drive to protect the wires from sharp edges on the metal. .
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Author:berserk