Electronics and technology blog    /    Materials for October 2021 year

By a twist of fate, another power supply landed in my hands for a while—or, more precisely, one of the variants of a model I’ve reviewed before. As it happened, though, I had to make a few modifications before testing it. As always, the details are in the review.

I’ve already reviewed a similar router, but that one was corded. Lately, though, I’ve found cordless tools more and more convenient, so I decided to give this version a try. For the most part, the two tools are very similar, so as I go along I’ll describe the cordless version and share my impressions of using its corded sibling, based on hands-on experience.

DIY battery pack assembly has become increasingly popular lately, and many beginners run into the question of how best to arrange the cells in a pack to get the maximum capacity. Today, I’ll introduce a handy calculator for working this out.

A roundup of popular AliExpress products. I haven't bought these myself, but picked out products that other people buy very often, so there's a chance they're not all as bad as they sometimes turn out to be :)

I was just looking for a signal generator and decided on the UNI-T UTG932E. Since I came across a pretty good price, I thought someone else might find it useful too.

I decided to do a bit of tidying up on the blog, check whether some product links are still current, and generally get things in order. There may be further changes as well. While doing all this, I noticed that some really interesting and still relevant reviews had been buried under others that are less on-topic for now. So I wanted to put together a guide, table of contents, or catalog—whatever you prefer. I’ve moved all my reviews, some articles, and a selection of the most useful reviews by other authors into this catalog.

Some time ago, we got to talking about manufacturers of protection devices, and I said that I consider products from three companies to be high quality: Novatek-Electro, Meandr, and Zubr. Meandr products aren't readily available to me, and I've shown Novatek products several times, so now it's the turn of another Ukrainian manufacturer, DS Electronics, which makes products under the ZUBR trademark.