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As I mentioned recently, I needed to build a powerful charger for one of my custom electronic loads. I’ve already shown you the converter, so now it’s time for the power supply. I’ve reviewed a similar SMPS before, which makes this all the more interesting—we’ll compare them.

A quick look at an inexpensive adjustable 60 V, 20 A voltage converter. It’s not exactly great, but I wouldn’t say it’s terrible either. Overall, you get what you pay for.

Na-ion batteries based on a relatively new chemistry (though that depends on how you look at it) have finally made their way to me. I bought them specifically for a review and to satisfy my own curiosity, and now I can share the results of some tests with you. I think you'll find them interesting.

Some time ago, I published a roundup of various products and included a nice-looking multimeter that can measure inductance. I also decided to buy one to review and test it, thinking it might be useful. Well, I received it yesterday, tested it, and decided to write a review while it was still fresh in my mind.

While putting together a list of products for the 11.11 sale, I spotted some interesting gadgets: bumpers for Riden power supplies. Yes, they’re highly specialized and somewhat controversial, but this time, along with the work-related orders, I wanted to buy something “just for fun”—and I think I made the right call.

Yesterday, a package with Fnirsi's new battery impedance tester finally arrived. I spent most of today exploring its features, running a few tests, and writing this review. I'll say right away: I have a lot of work on at the moment and not much time, so I'll keep this relatively brief.

A couple of months ago, one of my readers sent me a RuiDeng power supply to test. Well, it’s sold under that brand, although as far as I understand, it has nothing to do with the company itself. He sent it to me because he’d seen my review of the same power supply, bought from the same store, but it turns out quite a few changes have been made since then.

Recently I announced a new product from RuiDeng: the RD6030 converter, with an output current of up to 30 A. It’s definitely an interesting new model, so I ordered one right away. Today I’m ready to take a closer look at it.

At last, I’ve found the time and opportunity to review a relatively new model of electronic load from Atorch. Is it any good, and what has changed? Let’s find out.

AliExpress is having a sale right now, and I spotted a good price on the DL24MP load. People often ask me about it, but I haven't reviewed it yet, so I decided to kill two birds with one stone: share the good price, give it a quick review, and compare it with the DL24EW along the way.

Of course, cables like these are often better and cheaper to make yourself, but in this case I just couldn't resist the sale prices and ordered two sets right away :) In any case, I think the information will be useful.

While testing various electronic loads, I ran into a problem: I needed a high-power adjustable power supply—well, relatively high-power, of course :) I already have an adjustable supply based on an RD6024 converter, and everything would be fine, except it had only an 800 W power supply, while I needed at least 1200 W. So, during the November sale, I picked up a 1500 W unit for an upgrade.

I was sent this interesting little device. Well, calling it a device might be a bit generous; for the most part, it’s probably more of a display gadget. But it all depends on what you need it for, and for some tasks—especially the kind beginners in amateur radio tend to have—it’s perfectly adequate.

I've been using thermal imaging cameras for a long time. My first one was a very basic model with a resolution of 60x60. I later replaced it with an HT-A2 with a resolution of 320x240, and today I'm reviewing a model with a resolution of 256x192. It might look like a downgrade, but is it really?

Almost a year after this model came out, I finally got my hands on one. It was inevitable—I enjoy tinkering with this kind of thing. There are already tons of reviews of this model, so I decided to look at it as a measuring instrument and, more simply, check its measurement accuracy.

An interesting little device has landed in my hands: a clamp meter with 1 mA resolution and Bluetooth connectivity. As usual, I’ll take a look, run some tests, take it apart, and share my conclusions.

A small addendum to my review of the Vapcell N40 batteries in the 18650 size, with a capacity of 4000 mAh. Since these batteries are quite unusual, I decided to test their self-discharge, and today I can share some results.

Some time ago, I announced a new product from RuiDeng: an enclosure with a power supply. The kit I ordered has finally arrived, and that’s what I want to tell you about today.