Electronics and technology blog    /    All publication of the user kirich    /    Page 48

Yes, it's another smartphone, this time a new model called CHEETAH 2 from Cubot. As always, the phone has its own quirks and nuances, but I'll take it apart and test it just like all the others.

Last time, I explained how to properly convert a battery pack for a cordless power tool. I also mentioned that I’d cover the specifics of charging, and this time I’ll be reviewing a DC-DC converter board. If you’re interested, come on in.

I can't say I use a programmer very often, but sometimes I have to. So when I moved to a new computer, I ran into a problem: my old programmers wouldn't work with it. That's why I bought a more modern one that doesn't need a COM or LPT port. There are already reviews of this device here, so mine will be more of a brief photo showcase, along with a little history of programmers.

Today I’m going to talk about a small upgrade to my home network. The upgrade involved replacing my old router with a newer, faster one. For a number of reasons, this review will focus more on the router’s internals and software than on speed and performance tests.

This TV box is much like its siblings under the hood, but looks quite different. That’s why I decided to buy one and give it a try. As always, below the fold: a look around, a teardown, and a few tests.

Since I’ve reviewed quite a few batteries and also mentioned rebuilding cordless power tools, I often get private messages asking about various details of these conversions. People ask all sorts of questions, and they’re often much the same, so I decided to put together a short overview and answer some common questions about choosing components and rebuilding batteries.

A few months ago, I published a review of a small engraving machine. In that review, I pointed out the design flaws and mentioned that I planned to fix them. In this review, I’ll cover the parts for the machine, add a little theory, and show the upgrade process.

I get asked about various video surveillance systems in private messages quite often. The questions vary, but I’ve noticed that most of them boil down to explaining the basics. People also ask for help choosing an inexpensive, simple system for a summer house, a private home, or a small shop. For this review, I picked a basic kit and will use it to explain what’s what and what you need it for.

Not long ago, I reviewed a small computer, and commenters said it would have been better with passive rather than active cooling. I didn't mention at the time that I'd just bought a small computer with passive cooling and similar specs. So today I'm reviewing that computer. We'll test it, heat it up, and take it apart.

I got my hands on a rather interesting charger—or, more accurately, a power supply. But this name has become so firmly associated with this category of devices that it’s probably easier to call it a charger. As always, the device has its pros and cons, which I’ll show you. I’ll also take it apart and give you some information on how to choose power supplies and chargers properly.

Sometimes I feel like I could write about power supplies forever. I just like them, that's all. About a year ago, I reviewed the GOPHERT CPS-3205, a very interesting adjustable power supply with pretty good build quality. Not long ago, I came across a more powerful version of this power supply. I couldn't resist and bought it. As always: inspection, tests, teardown, and conclusions.

Last month I reviewed a Milwaukee cordless drill/driver. I also mentioned then that it wasn't the only tool I had for the M18 battery system, and now it's time to take a look at the next one. If you're interested in a tool that's not exactly cheap but is definitely interesting, read on.

Continuing my series of reviews of various tools, I’d like to tell you about a drill from STANLEY, one of the best-known tool manufacturers. This won’t be a very long review, but I’ll still do my best to tell you as much as I can about this tool.

I enjoy writing reviews of all kinds of DIY projects most of all, but small computers would come in second. I'm less interested in Android devices, but Windows is a different story. That's partly why today's review is of a small Windows 10 computer—and it's definitely not the familiar Atom-based kind. A look around, tests, teardown, more tests, and conclusions—all after the jump.

Today I'm reviewing a smartphone that stands out a little from the crowd of devices made in China. It has a lot in common with phones I've reviewed before, but while preparing this review I came across some interesting features.

Not long ago, there was an "unbelievably generous sale" of set-top boxes with an Amlogic S905X processor, 2 GB of RAM and 16 GB of flash storage. I couldn't resist either, and picked up a few.

In my previous review, I mentioned that I’d also review a second set-top box based on Amlogic’s new S912 processor. Performance is almost identical, but the design and software are different, so today I’m reviewing the second TV box. Teardown, tests, and conclusions are all below.

Around the end of last year, two new processors (SoCs) for TV boxes were announced. They were made by Amlogic. The weakest model, the S905, came out first, followed by the S912—but its release was heavily delayed, and TV boxes with this chip have only started appearing now, almost 10 months later. So today I'm reviewing a TV box based on the new S912 SoC. Inspection, tests, teardown—the usual.