Electronics and technology blog    /    Page 6

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.

Another saga of choosing and buying a fan for my new adjustable power supply based on the RD6012P. I think it will be useful and interesting.

I haven’t been posting much lately, and someone even asked if everything was okay with me. Unfortunately, I’ve had a lot on my plate, and I’d like to tell you about some of it today, since it turned out to be relevant to buyers and interesting to me.

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.

Another power supply, and Sanmim again—but this time it’s a 50 W model, somewhat similar to the Meanwell LRS-50-12, which I reviewed just recently. In short, it’s a very interesting power supply.

More batteries sent to me by a blog reader. This time, though, we're looking at the very common 32700 form factor. I've had batteries of this size before, with various capacities, so I'll not only show you the new ones but also compare them with the previous ones.

Another power supply I bought at the Kharkiv Cosmodrome. It's been sitting around for a long time; somehow I never got around to showing it. But now I've finally caught up a bit with the day-to-day stuff and tested it.

These are the third batteries I've received from a reader, and this time they're from the relatively well-known BAK. Sure, they're not Samsung or Murata, but BAK is still a recognizable name.

The second set of batteries from a group shipment sent by one of my readers. This time they’re some no-name (at least to me) Gotion/Guoxuan cells, but as it turns out, they’re actually quite interesting.

Another compact power supply from a fairly well-known manufacturer, this time rated at 12 W. The short version: I was impressed.

It's been a while since I wrote a review. I've been pretty swamped lately with work on new electronic loads. But a little while ago, one of my readers sent me several different types of batteries to test, and today I'm reviewing the first ones.

Those who regularly read my reviews know that I’ve already reviewed several electronic loads from Atorch. In each one, I’ve predicted (or suggested) what the next models might include. But less than six months later, the company has released a new model with the rather strange name CL24. In this preview, I’ll try to figure out what it’s all about.

Not long ago, I featured a new power module in several of my videos. You may also have seen the backstory behind it in a few other reviews. I can now say that the project has reached a kind of logical conclusion. Though, to me, a conclusion is really an opportunity to improve on what came before and start something new, perhaps even more interesting.

I recently posted a review of LG HE2 batteries, but as I mentioned then, someone sent me a couple more batteries to test. Many thanks to him for that, since battery reviews are very useful.

One of my readers contacted me asking me to investigate and possibly help determine whether the batteries he received from Nkon were genuine. In this case, they were LG ICR18650-HE2 2500mAh batteries.

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.