Electronics and technology blog    /    Page 55

I saw the news about this soldering iron a few months ago. I don't think I need to say how much I wanted to try it. And since a soldering iron is one of my main tools at work, I was twice as eager to give it a try. Impressions, analysis, conclusions—all as usual, after the jump.

I got another Android TV box to review, but this time it's powered by the new Amlogic S905 processor. I'm curious to see how it compares with its predecessor. Let's take a look, get hands-on, take it apart, and test it.

Today I have a review of the kind that lets me take a break from chips, circuit boards, and other bits of hardware.

Power supplies aren't always high-power units; some are very small, but no less useful for it. Today I have four representatives of this class of power supply on my “operating table,” but they'll go through the same tests as always.

I recently posted a review of video cameras, and today's review is about a little helper that makes setting up IP cameras easier. The helper is a slightly modified compact TP-Link TL-WR702N router. Anyway, if you're interested in making something useful yourself, read on. I hope you'll find it interesting.

Not long ago, on November 5 to be exact, I ordered a number of Samsung INR18650-25R batteries. I was so “lucky” with the timing that the next morning they announced a sale on them. I wrote about it in the relevant thread. It took less than a month for them to arrive, and naturally, I tested them. So, here's the story of the order and delivery, and the results.

My regular readers know that I work with video surveillance systems. So I couldn't pass up the new 4 MP camera, and when I ordered another batch of the familiar DS-2CD2032 cameras, I picked one up to test as well. But since the DS-2CD2032 is now available in an updated version called the DS-2CD2032F-I, I decided to combine the two and write one review covering both. So, read on if you're interested in components for proper video surveillance systems.

I understand that writing about a converter like this now is a bit like reviewing a steam locomotive's smokestack: interesting, but nobody needs it. But I figured that if I ended up needing one, it might come in handy for someone else too.

<!--image_begin:https://www.kirich.blog/uploads/posts/2015-11/1448774040_48-volt-5-amper-i-240-vatt-ili-blok-pitaniya-kotoryy-smog-udivit.jpg|left|48 Volts, 5 Amps and 240 Watts, or the Power Supply That Managed to Surprise Me--><!--image_end--> Many of you know how much I like different power supplies. I’ve reviewed 5, 12, 24 and 36 V power supplies, and today it’s time for the next step: a 48 V power supply. So, a 48 V, 240 W power supply has landed on my workbench. We’ll take it apart, measure it, test it and, of course, analyze it.

Another review in the “look what arrived” series. It all started when an acquaintance brought me his netbook to repair. The first diagnosis was that the battery was dead. Anyway, I ordered one, received it, and wrote a short report in case it might be useful.

Just recently, I came across a review of 3.3 V linear voltage regulators. I even joined the discussion, and at some point the topic of powering devices that run on 3.3 V from a lithium battery came up. Since this topic overlapped with one of my upcoming reviews, I decided to do a little experimenting myself.

Back in March, I reviewed the HUION 1060 Pro tablet. This time, a simpler but noticeably cheaper tablet landed on my desk.

The volt-ammeter, later known as the multimeter, is one of the essential tools for radio amateurs, radio engineers, and many others who work with electrical measurements. This time, I’ll talk a little about these instruments in general and two examples in particular. There’ll also be a short bonus mini-review at the end.

Today I’m reviewing a mixed bag of different types of batteries. It’ll be brief, but with numbers.

Today I plan to focus less on reviewing the tablet and more on testing Intel’s new generation of processors, Cherry Trail, which replaces the previous generation, Bay Trail. The previous generation was produced for about a year, and many mini PCs and tablets were released with these processors, so I was doubly interested to find out whether the new generation had made a difference to performance.

In today's review, I want to tell you about a rather useful device: a universal voltage converter. What it is, how it works, and what it can do—as always, read on.

I’m a little late with this TV box review. One thing came up, then another, but I finally got around to it. At the moment, I’m more interested in mini PCs with the new Cherry Trail Atom running Windows, but I still keep an eye on their closest competitors: Android TV boxes. The usual routine: a look at the outside and inside, a few tests, and my conclusions. If you’re interested, come on in :)

I first spotted this keyboard about a year and a half ago and even wanted to buy it on AliExpress, but it didn't work out :( And now I came across this keyboard again, this time as yet another product ordered specifically for a review. I'll try to figure out whether it's actually a good keyboard or whether I was wrong the first time.