TC66 (C), a USB tester with a USB Type-C connection and a built-in trigger for various protocols
8-05-2019, 03:40
Back in winter, news came out that RuiDeng was planning to release a new USB tester. I was particularly interested in this model, and now I have one in hand to test. This review covers the tests, as well as why this particular model caught my interest.
Compact DVB-T2 tuner
16-04-2019, 13:47
It’s no secret that television is gradually switching to digital broadcasting. Actually, no—it switched over a long time ago, and for at least the past 4 years they’ve been promising that they’ll “switch off” analog broadcasting any day now. But sooner or later, it will happen, and some owners of older TVs will be left, as they say, “up the creek without a paddle.” The TV itself will be like a suitcase without a handle: no use to you, but too good to throw away. But if you’re still happy with your old TV, you can add digital TV support with a small set-top box, which is what I’ll be talking about today.
Ammeter-voltmeter with a VFD display and power measurement
13-04-2019, 10:50
Continuing the topic of devices with VFD displays, I want to tell you about a rather interesting product: a fairly accurate ammeter-voltmeter that could come in handy for a hobbyist.

20 00013
Links to various products I often bought/buy, Part 2

20 00013
20-03-2019, 14:27
Part two of a list of various products I bought on AliExpress. I bought some of them more than once, so I can comment on both the product itself and the store.
Compact voltage converter with Quick Charge
26-02-2019, 04:49
A review of another converter, this time designed for a single port, but with QC support. I’ve already reviewed a similar board, but this one is cheaper and smaller.
5 V 8 A Voltage Converter with Four USB Outputs
25-02-2019, 17:27
I decided to order a few different inexpensive converter boards to try out, and today I’m reviewing the first one. There’s nothing unusual about it: just a standard converter, without even QC, but with an output power of up to 40 W.
Mecool KM9, a TV box with an Amlogic S905X2 processor
14-02-2019, 18:05
I’ve already tested a TV box based on Amlogic’s new S905X2 SoC, and wasn’t entirely satisfied. Although it offered good performance and ran cool, it had a lot of software issues. Now I’ve finally got my hands on another model from the well-known Mecool brand, and today I’ll take a look at what it’s like and whether anything has changed. As always, I’ll inspect it, take it apart, run some tests, share my conclusions, and wrap up with a summary table.
Main camera for the Cubot Power and its replacement
25-01-2019, 03:43
This story began quite a while ago, around the middle of August, when I was writing a review of the Cubot Power phone. After publishing the review, I put the phone aside for a while, and a few days later I needed it to test how well it could scan barcodes. But then I suddenly discovered that the camera's autofocus had completely stopped working. That's what can happen sometimes when you take something apart. More after the jump.
Tanix TX6 TV box, another option based on the Allwinner H6
24-01-2019, 11:06
This is my third review of TV boxes based on the Allwinner H6 system-on-chip (SoC). In my opinion, this processor is unfairly overlooked, with more attention given to models using Amlogic and Rockchip chips. Though the recently released models with newer Amlogic chips, made using a smaller process node, will probably draw even more attention. But let’s get on with the review: as always, I’ll take a look at the box, take it apart, run some tests, and wrap up with a summary table.
YR1035, another milliohm meter, an improved version of the YR1030
23-01-2019, 03:15
I posted a review of the YR1030 milliohm meter. It’s a great instrument, and I use it very often—not just when working with batteries, but whenever I need to measure low resistance. I also have a friend who works with batteries, and a while ago I suggested he buy one too. He was a little skeptical, but after seeing it in action, he decided to get one for himself. Knowing the specifics of his work, though, I recommended the updated YR1035 instead of the YR1030. Today I’ll explain how they differ and why, in this case, the 1035 is the better choice.
MECOOL M8S Plus DVB-T2 TV box, hot stuff
22-01-2019, 10:35
Not long ago, I reviewed a hybrid TV box with tuners for satellite and terrestrial digital TV. At the time, someone pointed out that “there’s almost the same one, but cheaper,” so naturally I got interested and ordered it for review. So today’s review is of the “budget” version, without the satellite tuner, but unfortunately with a few other compromises as well.
2512 SMD resistors rated at 20 mΩ
6-01-2019, 04:09
As I was developing my new electronic load, I needed some low-resistance resistors. There was no rush, so I decided to order them from AliExpress. Find out how that turned out in this mini-review.
Another set of VTC6 batteries, this time with tabs
2-01-2019, 04:57
Following up on the discussion about counterfeit VTC6 batteries from AliExpress, I decided to show you another set from the same mold, but from a different seller. A look-over, a few tests, and some conclusions.
LED ceiling lights, part 2: learning from past mistakes
31-12-2018, 14:11
Almost five years ago, I published a review of some lights and described the problems I ran into back then. Now I needed similar lights again, but since I already had a bad experience with this kind of product, I went about choosing them a little differently this time.
Protected Liitokala 3400 mAh batteries, another batch
28-12-2018, 02:28
A brief review of protected Liitokala 3400 mAh batteries.
Alfawise 256GB, a brief review of a microSD card
26-12-2018, 04:26
I once wrote that somehow every memory card I review ends up being twice the capacity of the previous one. I reviewed 32, 64, and 128 GB versions, and now it’s time for a 256 GB card. So, here’s a brief review of a tiny memory card from Alfawise.
Another batch of batteries, this time counterfeit SONY VTC6 cells
26-12-2018, 02:49
A friend spotted some Sony VTC6 batteries on AliExpress, so we decided to give them a try. Some were for my friend, and I ordered four for myself to test. The short version: it’s all pretty grim. More details in the review.
Magicsee C400 hybrid TV box with DVB-T2/S2 tuner
17-12-2018, 04:41
I've already reviewed quite a few different TV boxes, but today I'm taking a look at a somewhat unusual model. In addition to its TV box functions, it also has a tuner for digital terrestrial and satellite TV. As usual, I'll take a look, take it apart, run some tests, share my conclusions, and finish with a summary table.







