Electronics and technology blog    /    Page 41

Last year, I reviewed two electronic loads made by Sousim. I successfully put one of them to use, and today it’s the turn of the second, which originally could only be controlled using a computer.

It's been a while since I last picked up a soldering iron. A little while ago, I received a very useful little gadget, and today I plan not only to show it off but also to put it to work on a real project. Warning: lots of photos, which may be a problem for users on expensive data plans.

A while ago, I bought a Uni-T 181A multimeter and thought that the only thing missing from the complete setup was a Bluetooth adapter. I got one as a New Year's gift, and today I'll tell you about it. Unfortunately, it turned out that things weren't quite so straightforward. More on that in the review...

Sale categories: Teclast Top Sellers. Total items included in the sale at promotional prices: 4. Items with a quantity limit: 4 of 4.

Sale categories: Alfawise, FuriBee, Zanflare, Gocomma. Total number of items included in the sale: 19. Discounted items: 19 of 19.

Today I have a short review of a pair of branded holders for 18650 batteries. One of my readers sent them to me for a comparative test and review, so now I can share the test results with you.

Today I'm reviewing a tablet from Cube, a relatively well-known company—or AlldoCube, as it now calls itself. I've reviewed tablets from this company before. I also mentioned that I used one of their devices for a while and was generally quite happy with it. Let's see what they've come up with this time—and whether they got it right. A look around, tests, teardown—the usual.

Some time ago, I published a review of a kit for building a simple oscilloscope. It would have been fine, except that its bandwidth was very limited. I wouldn't say the little device I'm reviewing is much better, but it's rated for a bandwidth of up to 4 MHz. Let's see what it is and how it works :)

For quite some time now, I’ve been using a homemade meter for measuring capacitor capacitance and ESR, built from a circuit designed by GO, a member of the ProRadio forum. I also use another, equally popular meter, the FCL from the cqham website. Today’s review is of a device that claims higher accuracy and, in practice, combines the two meters mentioned above. Warning: lots of photos, little text. This may be an issue for users on expensive data plans.

I've already reviewed TV boxes based on SoCs from Amlogic, Rockchip, Realtek, and even ZTE, but this is the first time I've had a device with an AllWinner processor in my hands. It's also my first TV box from Zidoo, a company I've heard more good than bad things about. So today we'll take apart, test, and inspect the H6 Pro from Zidoo, powered by an AllWinner H6 SoC.

I mention Mean Well power supplies very often in my reviews, and even more often in the comments. Their products occupy a segment where the price is not exorbitant, but the quality is very high. One of my regular readers sent me this power supply specifically for testing, and I’m very grateful to him for that. He also asked me to put it through its paces, which is exactly what I’ll be doing today. So, if you’re interested in branded but not exactly cheap power supplies, I don’t think you’ll be disappointed.

Sale categories: TOP Brands Only, New Year Phones & Tablets, Top Computers & Networking, New Consumer Electronics, 2018 LED Lights & Flashlig, Cool Automobiles & Motorcy, All-New Indoors & Outdoors, Fun Toys & Hobbies. Total products in the sale: 23. Products at reduced prices: 14 of 23. Products with quantity limits: 9 of 23.

Sale categories: HOT Deals, Mobile Accessories. Total number of items in the sale: 4. Discounted items: 2 of 4. Quantity-limited items: 2 of 4.

This is the third and, for now, final review in a series about used power supplies for various DIY projects. Today I’ll tell you how a power supply can sometimes turn out, when tested, to be an “overclocked” version of a simpler PSU. I hope you’ll find this interesting—or at least useful. Tests, schematics, and other nonsense as always after the jump.

As it happens, I often need to use a couple of devices with HDMI outputs at the same time, but my monitor has only one input. So I decided to make switching between sources a little easier. I used to solve this by using the monitor’s second, VGA input. Then I got more devices with HDMI, so I had to use an HDMI-to-VGA converter. Eventually I got tired of that and picked up an HDMI signal switch for myself—and to review. So, here’s another short review

As I mentioned in my previous review, I received several different power supplies, and today I’m reviewing the next one. Last time it was a 12 V power supply, but today’s model has a less common output voltage: 48 V. It still has its own area of application, which I’ll discuss at the end of the review. As usual, I’ll cover the tests and circuit diagrams, and answer some of the questions people asked in the comments.

It's been a while since I reviewed a memory card. To be precise, I've only reviewed two: 32 GB and 64 GB cards. This time I decided to try a 128 GB card. I got it to test devices, since prices for cards of this capacity are gradually coming down, and users increasingly want to use them in dash cams, tablets, and so on. Naturally, people ask questions like, “Will it work with a 128 GB card?” So today, another short (really short) review of a small memory card.

Many readers know how much I enjoy writing reviews of power supplies. As it happens, I recently got my hands on quite a few of these devices. The thing is, not long ago a well-known store started offering a variety of power supplies pulled from equipment, and today I’ll tell you about one of them.