There was plenty of awful Soviet tech, too - this thing has survived because it had some value, was well built and taken care of but you don't hear about the thousands of pieces of tech that were shoddily made cheap crap (though expensive for a Soviet citizen) and wouldn't last a year without repairs.

Soviet tech had to be built for serviceability - people couldn't often afford new things and even if they had the money, there was no guarantee it was even available. And many things just broke down constantly. It even went so far that "a set of golden hands," meaning one could fix a lot of stuff was a valued characteristic in males, and women sometimes may have overlooked other personality flaws in a relationship because of it, like drinking.

My grandma had a Soviet TV well into the 90s and even early 2000s, maybe out of sentimental attachment more than anything else. The thing broke down constantly, every 3-4 months at least, and she'd always call a repairman. In the end I think more money was sunk into it than a brand new 4K TV would cost now. It was finally laid to rest when her usual TV repairman died, and the new one found it increasingly difficult to find replacement parts, and finally gave up, and we could at last get her a new TV.