Electronics and technology blog    /    Materials for August 2018 year

I've been asked about reviews of converters like these many times, both in the comments and in private messages. I've seen plenty of reviews of similar devices, but somehow never got around to trying one myself. Partly because I already have quite a few different adjustable power supplies, and partly because I have a general idea of what these converters are and how they work. But as it happened, I needed exactly this kind of converter for a project, so I decided to order one for a review. This won't be a very long review. It'll mostly be about my personal opinion of the converter itself, its design and controls, and my overall impressions compared with models from ZXY.

Not long ago, I reviewed a computer that was almost identical to the one featured here. It was called the Beelink M1. But as it turned out, the differences between them are a little more significant than I initially expected. Still, the best way to find out is to read the review, which includes a look around the device, the obligatory teardown, tests, and, of course, my conclusions, along with a comparison table.

I wasn’t even planning to write this review anymore, but this time fate had other ideas, and by a roundabout route a new phone from Cubot eventually made its way to me—or, to give its full name, the Cubot Power. The manufacturer came up with this rather straightforward name for its creation. In principle, it’s not a bad idea: there’s no “notch,” dual camera, or other nonsense, but there is a large display, a high-capacity battery, 6 GB of RAM, and 128 GB of flash storage. Somehow, though, it’s like that old joke about Christmas tree ornaments. Anyway, let’s take a look, take it apart, test it, and draw some conclusions.

GearBest has offered a discount on a pretty decent computer that I reviewed a while back. I thought this might be useful to readers.

A brief review of NCR18650B batteries with the LiitoKala logo, bought on AliExpress. In appearance and specifications, these batteries are very similar to the well-known Panasonic NCR18650B, but cost a little less. As usual, the review includes an inspection and thorough testing.

I recently posted a review of a volume control, and today I'm continuing the series of reviews about all kinds of audio equipment. This time, I'm looking at a power amplifier based on the fairly popular LM3886 chips.

I’ve been meaning to write an article like this for a long time, partly because I’ve already tested quite a few of these devices, partly because I wanted to organize all the information, and partly because readers have asked me to do it more than once.