Haha, yes guess where I got the inspiration from
Yep it works perfect and it's not just that you save money, it saves bucket loads of time replacing perfectly OK old caps.
Yes you can test the vast majority in circuit just fine. Only when two caps are put in parallel (like f.i. filter caps on Pac PCBs) you will of course get the double capacity indicated and the ESR will roughly be half of the real value of these caps. So in those pretty rare cases you will have to desolder one of the leads of one of those caps to check them individually.
But that's the same for all ESR testers.
There is also the Peak ESR meter which is about the same but costs a lot more.
Advantages of the Russian one over the Peak:
-price
-proper measuring pens instead of clumsy crocs
-DIL socket for very quickly testing new caps (which is more important to do than you'd think)
-personal support by the maker, he writes English close to perfect
PLEASE NOTE: the small spots On the display that I mention in the video were only on the plexi protection above the actual display. Mike has upgraded these since so this shouldn't be a problem anymore. I have simply removed the plexi and it looks perfect, just have to be careful not to stick anything into the hole that could damage the display
