Electronics and technology blog    /    Materials for March 2016 year

I've already reviewed quite a few mini PCs running Windows. But then I came across a relatively inexpensive model and decided to see what mini PCs in the lower price range have to offer. As usual, though, this turned into the whole routine: inspection, tests, teardown, modifications, setup, and more tests.

I've already reviewed several kits that let you build all sorts of useful things for radio enthusiasts. But today I'm reviewing a bigger kit. We'll try to build a recent invention: a 3D printer. I can't say it all went smoothly. I kept expecting something to go wrong, but in the end, I managed to put something together. Anyway, a description of what this is and an attempt at a step-by-step guide are below the fold.

I finally got around to trying out an unusual SEPIC converter (or so I thought at first). It’s unusual, at the very least, because it uses just one inductor, whereas a conventional one always uses two (or a coupled inductor).

ONDA, a company known for its tablets, apparently decided not to stop at making these devices and set its sights on the small desktop computer market. Today, I’ll tell you about one of these devices. As always, there’ll be a look around, some tests, a teardown, and a few more hurdles to overcome.

I've already published a comparison of two multimeters that differed greatly in both price and capabilities. Today I'm reviewing another pair, with much more similar specifications, but still noticeably different from each other.

Before New Year, readers asked me to review a couple of converters. Well, it wasn't really any trouble, and I was curious myself, so I ordered them, received them, and tested them. I was actually more interested in a slightly different converter, but I still haven't gotten around to it, so I'll cover that one another time. Today, though, I'm reviewing a simple DC-DC converter rated for 10 A.