I wouldn't want to risk it but you're right that it's possible they weren't maintained properly from the fall of the USSR to today. I don't know exactly how fra

I wouldn't want to risk it but you're right that it's possible they weren't maintained properly from the fall of the USSR to today. I don't know exactly how fragile or picky the hardware is, but my guess would be that it takes a lot of care and effort (and therefore money) to do, in a country which probably had other priorities for much of the last 3 decades.