EM-130 Programmable WiFi Astronomical Timer by Novatek-Electro
3-12-2020, 23:50
Today I'm reviewing a timer that looks quite ordinary, but can do more than simply run for set time intervals: it can also switch according to sunrise and sunset times, which can be more convenient than a conventional photocell relay in some situations.
Atorch DL24, an inexpensive electronic load with four-wire connection
26-11-2020, 04:57
Some time ago, I announced a new product from Atorch, the DL24 electronic load. But calling this device new is a bit of a stretch; it would be more accurate to call it a budget version, without a heatsink included and with a maximum power limit of 1000 W.
EleksTube Desk Clock by EleksMaker
23-11-2020, 14:34
This post isn't an ad or a promotion; it simply covers new products that have gone on sale. Today I'll tell you about some interesting desk clocks that were released not long ago.
UPS-1000 Uninterruptible Power Supply from Novatek-Electro
22-11-2020, 23:04
My story with uninterruptible power supplies began back in the late ’90s and early 2000s—not as a user, but more on the manufacturing side. That’s why I was doubly interested in seeing what’s being made today and remembering how we used to do it. So this review will probably have a touch of nostalgia.

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Another roundup of assorted products for electronics hobbyists, part 10

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22-11-2020, 04:39
A little roundup of products from AliExpress. I’d say it was for “Black Friday,” but I’m pretty skeptical about all these sales, so it’s just a roundup.
ORICO Chroma CN300 500GB External SSD with USB-C Interface
15-11-2020, 04:46
I’ve already reviewed a 128GB external SSD from Orico, but when I was offered the chance to test a new version, this time with 500GB, I thought, why not? The previous one works fine, and as they say, “you can never have too much storage.”

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Interesting deals in the 11.11 sale

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11-11-2020, 13:19
I got hold of a list of the most popular items in the 11.11 sale. It's a long list, so I'll mention the ones that I personally think might be of interest. If you have questions about other items, let me know.
Fnirsi DC-6006L Adjustable Voltage Converter
11-11-2020, 00:24
Some time ago, I posted information about a new model of adjustable converter that I had stumbled across completely by chance. But literally that same day, a company representative contacted me on Skype and offered to write a review of the model. I received it not long ago, tested it, and am ready to tell you more about it.

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Another roundup of assorted products for radio hobbyists, part 9

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9-11-2020, 13:52
AliExpress is gearing up for a big sale, and I decided to share links to various products I came across. Mostly not because they’re cheaper—we all know how “sales” work—but simply to show you some interesting things.
Vapcell batteries, part seven: protected 18650 cells rated for discharge currents up to 15 A
9-11-2020, 02:28
Sometimes you need batteries with a built-in protection circuit, and the selection of models is considerably smaller. It gets even more limited when you’re looking for models with protection rated for high current. Today I’m reviewing three models, but testing revealed that sometimes things can be so good that they turn out to be “bad.” Still, you can find out all about it in the review.
VapCell IFR10370 140mAh Batteries, Part Six: 10370 Size
8-11-2020, 02:26
Last time I covered 26350-size batteries. Today, I'm looking at cells in another uncommon size, 10370. They differ not only in size, but also because they're LiFePO4 batteries.
VapCell INR26350 A20 2000mAh batteries, part five: 26350 size
8-11-2020, 02:20
I never cease to be amazed by the variety of battery sizes, and that's partly why today I'm reviewing some examples of the rather uncommon 26350 size.
RS485 module with galvanic isolation for connecting RD60xx series power supplies
30-10-2020, 20:23
As you may know, the RD6006, 6012, and 6018 power supplies support WiFi connectivity when the corresponding module is installed. However, the settings menu and software also include an RS485 option, indicating that this communication interface can be used as well. Not long ago, RD RIDEN added RS485 modules specifically for these power supply models to its store.
RD6018, a new converter from RuiDeng
30-10-2020, 03:26
Just under four months ago, I published a review of RuiDeng's new RD6012 converter. Now I have the next model in this lineup in my hands: the RD6018, with an output voltage of up to 60 V and a current of up to 18 A. This review will be relatively short, but I'll still try to make it as informative as possible.
Vapcell S4 plus four-bay charger with charging current up to 3 A per slot
20-10-2020, 22:52
Those who read my battery reviews have probably noticed that almost none of my tests go by without a "conditioning" cycle, which I run using a relatively simple charger. I reviewed it more than 5 years ago, and it served me faithfully all that time. But I think it's time to replace it with something more convenient and powerful, so today I'll be talking about the Vapcell S4 plus charger.

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And another roundup of various products for radio amateurs, part 8

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3-10-2020, 23:05
I’ve been a bit under the weather, which is why there haven’t been any new reviews. But I did find time to browse AliExpress, and today I’d like to share some interesting and potentially useful products—or, more precisely, links to them.
An Interesting Electronic Load Option
27-09-2020, 20:32
Yesterday I was browsing AliExpress and came across an interesting take on an electronic load. I read a little about it and decided to share it with you in case it comes in handy.
Boost converter with power up to 400 W
26-09-2020, 13:12
For some reason, I rarely review boost converters, and I don't think I've ever reviewed one with this much power. But people often ask me about converters like this, so I bought this one specifically for a review.














