The first thing I ever built without a kit was a 5 V regulated power supply using the old LM309K. That’s a classic linear regulator like a 7805. While they are simple, they waste a lot of energy ...

Microcontroller addict [Debraj] decided to make his own programmable sine wave generator ... that [Debraj] displays by sketching the initial circuit diagram with a ball-point pen — check ...

A simple mounting scheme and high reliability lend to the low cost of ownership. The AEP-5000 series is part of the full line of rugged, pure sine wave inverters from Schaefer, which includes ...