Learn how to make a generator using DC motors in this step-by-step tutorial. Perfect for DIY enthusiasts and beginners, this ...

[The LED Artist] often found a need for a relatively high voltage (100 to 200 Volt) but low current DC power supply, and it turns out that a small HV generator that uses a single AA cell only took ...

Testing DC supplies can be done in many ways, from connecting an actual load like a motor, to using a dummy load in the manner of a big resistor. [Jasper Sikken] is opening up his smart tester for ...

This handy tool lets you test active and passive components at frequencies up to 3 GHz. I tried an early unit, using it for ...

A September 2005 power outage that affected two million people in the California Southland was initiated when workers cut live electrical wires after consulting erroneous design drawings, but it was ...