Constructor for assembling a popular transistor tester

Or rather, not only about the device itself, but about the designer for assembling it. Similarly to the DDS generator board, the manufacturer applied the same move with double vias. though in one place for some reason he left a small “tail” from the track. The set came in a small cardboard box, it’s already better than in previous times, but anyway, I would like to see more beautiful packaging for such sets, with color printing, made of thicker cardboard.
Inside the box was a set in an antistatic bag. I will say right away that it can be found cheaper already assembled, but what will replace the interest from assembling the device with your own hands? The workmanship is good, only positive emotions remained from the assembly and soldering process. At the time of publication, the second option was almost the maximum, the only thing missing was a graphical indicator. The first one had an addition in the form of autonomous power supply from a lithium battery and a charger for it. This device is not in vain considered one of the most popular multi-measuring devices. In this review, I will talk about a simpler, but at the same time more visual version of the device (due to the use of a graphic display), which is quite accessible for repetition by a beginner radio amateur. After unpacking, it looked, let’s say, "pile", but it is worth noting that the display was laid face down to the printed circuit board, so it will be quite difficult to damage it, although the mail sometimes makes the impossible possible. I’ll start the review, as always, with the packaging. In general, if you are interested, come in 🙂 About a year ago, I posted a couple of options for repetition. Today’s review will be a little simplified in comparison with previous reviews of designers, since I can’t say anything particularly new in terms of installation, but I don’t really want to repeat it. Since it does not contain very many details, various radio amateurs and enthusiasts immediately began to repeat and refine it.

Constructor for assembling a popular transistor tester

The whole https://jiji.ng/388-ring-light/remote-control kit is sealed in an antistatic bag, a bag with a latch, so it may come in handy in the future for something 🙂 But on the radio elements, which were not in the previous reviews, I still linger a little. Today I will try to talk about one of the most popular homemade measuring instruments. It appeared quite a long time ago, it was invented by the German Markus Frejek, but somehow it so happened that at one of the stages he stopped developing this project and then another German, Karl-Heinz Kubbeler, took up it. The printed circuit board has dimensions of 75x63mm. I modified the second one a little more, the main differences are that the encoder connection diagram was slightly improved, the control of the boost converter for checking zener diodes was redone, software improvements were made, as a result of which, when checking zener diodes, you do not need to keep the button pressed, well, they were also transferred to this board battery converter and charger. As on the printed circuit board of the DDS generator, there is also a normal marking of radio elements and there is also no circuit in the kit. He deserved it due to its ease of assembly, great functionality and pretty good performance.

Оставить комментарий