Mastech MS8910, when you want something extra alongside a regular multimeter.
28-01-2015, 03:52
Another small addition to my collection of measuring instruments. This time it’s a small tweezer-style multimeter. This type of multimeter is primarily intended for working with SMD components. If you’re interested in the testing and teardown, read on.
12 V 5 A power supply, or how it might have been made.
25-01-2015, 15:13
I got a similar power supply, and naturally I wanted to see what they have in common and what’s different. I’ll also share my own power supply design. If you’re interested, read on.
29 1940
MC34063: One of the most common PWM (pulse-width modulation) controllers, plus a brief introduction to how DC-DC converters work.
29 1940
19-01-2015, 02:11
A while ago, I published a review showing how to build a PWM regulator using a KR142EN5A. I also mentioned one of the most common and probably cheapest controllers for DC-DC converters: the MC34063. Today, I'll try to add to that earlier review.
Unbranded 32GB microSD card.
15-01-2015, 03:27
After seeing so many flash drive reviews in a single day, I decided not to be left out and put together a review of my own—though without a roulette wheel or anything like that. I even remembered Gusev's line from the film *The Adventures of the Elektronic*: “I've got a voice too, you know. I want to sing too :)”
2 4890
A decent fan for the Acer 5720Z and similar models.
2 4890
14-01-2015, 20:24
One of my friends brought me a laptop not long ago. It needed Windows reinstalled and some tricky software installed. The laptop was pretty old and low on memory, so everything was painfully slow. I suggested adding more RAM, which we did, but one small, noisy problem remained: the old fan. We decided to fix it once and for all by replacing it. As they say, make hay while the sun shines—or in this case, get a fan in winter :)
A decent compact wireless keyboard, but with a few quirks.
8-01-2015, 22:41
In my work, I sometimes run into situations where I have to work with computers that only have a monitor connected. In those cases, I have to bring a keyboard and sometimes a mouse along. I decided to make things a little easier for myself.
TrustFire TF26650 5000mAh 3.7V: testing, a decent result, and a little DIY.
5-01-2015, 16:06
And so, my brief run of bad luck in experiments with various batteries has come to an end. As usual, I ordered the battery for a specific purpose, but read on to find out what it was and about the battery itself.
DS203, a decent, compact, simple oscilloscope at a nice price.
5-01-2015, 01:03
Another instrument joins my collection :). I've wanted a toy like this for a long time. It's hard to call it a full-fledged oscilloscope; it has its drawbacks, but its low price more than makes up for them. This model was reviewed quite recently, so this review will just add a few details and my comments.
