Available in SIP, DIP or SMT packages, the 1W series of dc-dc converters offers fixed input ranges of 3.3, 5, 12, 15 and 24V ±10 percent. The unregulated, convection-cooled units are designed to convert fixed voltages into isolated voltages, making them suitable for mixed analog/digital circuits, test and measurement equipment, machine controls and other datacom applications.
A make-your-own Star Wars Sith Lightsaber hilt is heftier and better-looking than most others out there, according to its maker, Sean Charlesworth. You can 3D print it from free source files, and there's even a hardware kit available -- not free -- so you can build one just in time for Halloween.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies.
You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived.
So if you can't attend live, attend at your convenience.