The description on the product page is wrong: it says that capacitors, and despite my repeated comm

Some time ago - what came to me from a representative of tmart.com mail, website gadgets and other products from the Far East, with an offer: send me an electronics review blog. I knew the name tmart small purchases I've made in the past on eBay, and making sure the candidate is not a bot but a real person who understands that this is a private blog in Hebrew, etc., I decided to give it a try.
So first of all, a number of important clarifications. First, my personal earnings story is only the specific components you see here. I will not get any percent and no fees if any of you decide to buy the site, and not lose anything if you do not. Second, I made a single delegate - my critique will categorically honest, and I do not Ipe or hide anything, even if it cost me to continue its relationship with him. Third, the blog will not become a billboard - I only agree to review products that have high relevance to issues blog readers, only from trusted sites, and it does not come at the expense of the ordinary content. So Here is our product jula for now.
It is a set of 50 Variable Resistors / Potentiometers (Trim Pot) Small sample 3296, Chinese-made poached, custom load up to 0.25W and have slender legs (Through-Hole) Standard jula spacing of 2.54 mm. At the time of publication, the price of the set on $ 6.36. was invited on Friday June, set out in the seventh and reached my mailbox (standard delivery, FREE) twenty-four month - delivery time of two weeks. package included a flyer with a small Coupon 5% discount to buy next, and a bag with Hfonttziumtrim. Unfortunately there was no extra padding, but showed no external damage to components except for the slightly bent metal legs.
The description on the product page is wrong: it says that capacitors, and despite my repeated comments the situation has not been amended. Correct picture as headlines, though not listed anywhere which is resistance values. This is definitely a point against the site. In practice, it is possible to adjust potentiometers as the rotation of the screw through the tiny golden on top (see photo below). They are not built to frequent changes (mechanical life of these components is very limited), but directed circuits rarely made - for example, to the one - time of the sensor sensitivity after put him somewhere new.
Potentiometer, of course, is actually built two resistors fixed amounts, but you can increase the resistance of each of the second account. Total resistance value of the potentiometer, it can measure both feet extremism, jula indicated on the component in "10X", meaning ten times ten - presumed-X. For example, check 102 means ten times ten - presumed -2, that is 1000 um, and 104 um means 100,000. Package jula from Tmart arrived ten units each notations 101, 102 and 104, and twenty units with Simon 103, each separate inner bag.
Values specified jula in the elements, of any kind, are almost always an average - each unit some deviations are expected, and as is expensive and of higher quality, so term deviations lower. Protection Hfonttziumtrim be said that the two multi - measure I have used are the cheapest kind, yet both came to the same conclusion: the vast majority of the pots (yes, I checked each) showed a deviation of 3% to 5% (up or down) of the nominal value. Two of the fifty deviated a bit beyond the limit of 5%, and about ten showed jula a deviation of 2% or less. These findings not so pleasant but not surprising and are eminently affordable category. The primary meaning is simply jula that you can not replace a circle, blindly, one such element and watch another exactly the same results.
The middle leg of the resort serves Hftnziumtr voltage divider, which means it connects inside, so to speak, the point between the two resistors. This allows us to use the component or against "normal" varies (disregarding the legs from one side), or class of real power. For example, if we send signals Finnish Bardoaino, running at 5V to 3.3V component only accepts, you can pass any signal through such a set-point potentiometer.
The question jula is, therefore, some degree of accuracy you can get the manual tuning. Importantly screw no event does not stop or go out: when you flip it over the border electrical resistance, physically he just keeps spinning. However, the distance from the border of resistance is not infinite, but ends after two rounds, only those need to "return" to return term impact. Beyond these two rotations clockwise Hfotnziontr also starts making a rattling fine.
Turning the screw with a screwdriver is fine watchmakers (flat). Clove may also work, though it is much less convenient. Very rough estimate, each round of three - hundred and sixty degrees is worth - value to 3.5% -4% resistance. For example, Bfontnziumtr of 10K, if the resistance between leg 1 and 2 is now 8100, so a full rotation jula counter-clockwise will lower it to around 7750, and another round to 7,400. The effect of rotation is not completely linear and requires close supervision with the multimeter, but in most cases you can get good accuracy at least as it Shmoltimtr Cheapest able to measure general. Here and there, depending on the angle of rotation, encountered stubborn spot and are restricted to only limit is less - or - than what we wanted. jula
Well, the usual sites Far East, prices jula are really funny - and quality accordingly. These components for professional use if you need a stable and accurate control level and Hmiliooltim jula few nuts, forget it. On the other hand, as a working tool for amateurs, it is currently the most affordable deal I found online: even a reasonable amount of components and a range of values, the price on eBay even there (if there is a price close to, obviously the seller is tmart ...). So in short, yes
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