Electronics and technology blog    /    All publication of the user kirich    /    Page 55

I needed some powerful MOSFETs for one of my future projects. Of course, I could have bought them locally, but they cost almost three times as much here as they do in China. Since counterfeits are sometimes a possibility, and I could get them for a review, I decided to give them a try and test them while I was at it. There won't be any teardown, but there will be a build :)

Many DIYers have probably often found themselves needing a rotary tool for their projects. I use a small homemade drill, but I’ve often seen others use a Dremel or one of its clones. It looked convenient, but I wanted something a bit more powerful with a standard chuck. I spotted something similar in a well-known store and managed to get one for review. Well, let’s take a look at the outside and poke around inside a little to see whether it’s worth it.

With this review, I'm bringing my quest to get USB 3.0 working at home to a close. I use a USB hub all the time at home, and as the amount of data grows, I'd like to increase the transfer speed too. As always, the review, teardown, analysis, and conclusions are below the fold.

Since my work involves computers quite a bit, I'm interested in all sorts of unusual computer gadgets. Not long ago, I learned about an interesting device: a graphics card that connects to a computer's USB port. As soon as I got the chance to review one, I jumped at it. As usual, I'll take a look, take it apart, and test it.

Not long ago, I posted a review of a hard drive enclosure. Since it already had a USB 3.0 interface, while my home computer still only had USB 2.0, I decided to give my old computer a bit of an upgrade. From what I’ve gathered, Orico is something of a brand in the computer accessories world, so I decided to see what this Chinese brand was all about.

This time, I’m reviewing a rather controversial device. The manufacturer tried to please supporters of two different user groups at once and put an end to the Windows vs. Android flame war. The solution was a dual-boot device: a mini PC that runs both operating systems (well, almost). If you’re interested, read on.

It’s not uncommon to have an unused 2.5-inch hard drive lying around. For example, after upgrading to a larger one. You can put the old drive on a shelf, or pop it into an enclosure and get a fast “flash drive” with a pretty decent capacity. This is a review of an external hard drive enclosure.

The batteries at home started multiplying unexpectedly, and since I also needed to test quite a few of them, I decided to get a charger with a capacity measurement function. But buying the well-known Opus, Soshine, or iMax would have been too obvious, so I decided to try a charger that few people have heard of. As always, the rest of the story is below the fold.

The first time I saw thermally conductive rubber was many years ago in CD-ROM drives, where it was used to transfer heat from the motor drivers to the drive housing. At the time, I didn't think much about how useful something like that could be. But much later, I realized it could come in handy, so out of curiosity I ordered a couple of pieces in different thicknesses to try out. If you're interested, come on in.

Another review of various things for DIY projects. This time I'll tell you about a digital speed controller. It's an interesting little gadget, but I was hoping for more. If you're interested, read on :)

Not long ago, my fellow reviewer Ksiman reviewed a similar set. As it happened, I ordered a set from the same series at almost the same time. It took me a while to get around to writing a review, but here it is at last. If you're interested, read on.

I needed a lighting control timer for a project. The lighting (a sign) had to switch on after dark. Usually, people just install a photocell switch for this, but it has its drawbacks. I decided to tackle the problem with a special timer.

Like most men, I have a habit of shaving in the morning. Some use a razor, others an electric shaver. I got used to using an electric shaver from the start, though I sometimes shave with a razor too, depending on my mood. This review is about an electric shaver. If you're interested, come on in.

I once wrote about a mini computer running Windows 8.1. This computer is very similar to it, but also has some notable differences, mostly for the better. But nothing is perfect, and I'll try to explain that in this review. I'll say right away: I'll be taking it apart :)

Some time ago, I came up with the idea of building a simple but useful device. I had everything I needed at home, except for an ammeter-voltmeter, so I ordered one, received it, and started building what I had in mind. More after the jump.

<!--image_begin:https://www.kirich.blog/uploads/posts/2015-04/1428353400_esche-odin-12-volt-blok-pitaniya-no-uzhe-na-1-amper.jpg|left|Еще another 12 V power supply, but this one is rated for 1 A.--><!--image_end--> In my previous review, I misspoke when I said there were two items in the package. Today I’ll show you what else arrived. I ordered this power supply for a very specific purpose, but I’ll tell you about that at the end. This review will be very similar to the previous one. If you’re interested, read on.

<!--image_begin:https://www.kirich.blog/uploads/posts/2015-04/1428184680_12-volt-6-8-amper-blok-pitaniya-kotoryy-priyatno-udivil.jpg|left|12 Volt, 6–8 Amp power supply that pleasantly surprised me.--><!--image_end--> In one of my reviews, I showed how to build a decent power supply yourself and complained about how rarely good power supplies are available for sale. I liked the look of this one right away, but since pictures can be deceiving, I decided to take a closer look and put it to the test. The review includes a description, photos, tests, and an analysis of a small design flaw. Read on after the jump.

While working on one of my long-running projects, which I started late last year, I needed some batteries. I had the idea of adding a backup power source to the device I'm building. So I decided to order these batteries and take a look at what they were like. So, we'll be testing 18650 batteries with a claimed capacity of 2800 mAh. Anyway, more after the jump.