Electronics and technology blog    /    All publication of the user kirich    /    Page 8

I happened to notice that RuiDeng's store has a discount on the RK6006 converter, and thought it might be useful to share.

A decent power bank for your 18650 batteries, although in my opinion it has a few drawbacks.

For quite a long time, the simplest solutions were used to test, for example, a power supply under load—powerful resistors or light bulbs. But with the widespread availability of high-power semiconductor components and the emergence of equally powerful power supplies, it became possible to make the process more convenient by using an electronic load.

This story began around February this year, when two 3D printer boards came in for repair along with a power supply. The power supply turned out to be a relatively easy fix, but the board repairs dragged on for quite a while. I recently got the missing component, though, so I can put together a short article about it.

I was starting to think there wouldn't be any battery reviews for a while, but then one of my readers got in touch and offered to test some rather unusual and interesting cells from Samsung. Naturally, I agreed—especially since I was curious myself.

About 4 years ago, I wrote an article about repairing an air conditioner circuit board. Now someone got in touch with me who had exactly the same board and exactly the same fault. At first, we were talking about the ins and outs of service centers, but one thing led to another, and the conversation turned to whether I could repair the board. Well, why not? I could, so I got it and here’s my report.

This is already my third attempt at buying fans on AliExpress, and this time I wanted to try my luck with "Original For Delta AFB0712SH". I chose carefully, but...

It hasn’t even been a couple of months since RuiDeng released a complete adjustable power supply based on the RK6006 module, which I reviewed not long ago. But it turns out they didn’t stop there. More in the article.

These are the third batch of transistors I've received. When I started testing them, I thought I'd give them a quick check and put together a short review, but things went completely differently from what I'd planned...

Along with the FDA59N30 transistors I recently showed, I ordered a couple of other types. Today I'm reviewing one of them: the relatively low-voltage HY3708.

This will be my last battery review for a while. I don't know when the next one will be, and today we're looking at 21700-size batteries from BAK.

At the beginning of March, I had three Tpcell product reviews: two types of batteries and a charger. I recently checked the product page and noticed that two more batteries had been added to the lineup. I decided to find out what they were like and tell you about them.

I recently reviewed some FDA59N30 transistors I bought on AliExpress. I mentioned then that I’d ordered a couple dozen more, and here they are.

Yes, batteries again, but this time from the popular Nkon store. In my opinion, these are the best batteries so far in terms of price and specs.

Yes, I’ve already reviewed these batteries, and to be honest, I didn’t really expect to see them in the package. But first, they’ve already been sent, and second, I have something to compare them with, so I’ll test them too. And yes, these are the last batteries from the six pairs I recently received.

Not long ago, I mentioned that some interesting batteries were coming, and now it’s time for what I think is the most interesting one: batteries with almost the highest capacity in the 21700 form factor.

Another interesting set of batteries, interesting above all for their high capacity.

About a month ago, I posted a preview of a new version of the electronic load from Atorch. I’d already reviewed a couple of their devices, and they’ve updated it a couple of times since then, but somehow I never got around to testing and reviewing it. Now I’ve got the latest version of their device, the DL24EW, in my hands.