Tyumen 57°10’14″N 65°29’54″E
SW/MW radiocenter is now gone.
Use Google streetview. You can see many SW antennas on small poles. Some of them are cage antennas (you can see it next to the gas station).
In 2010, MW was 891 kHz 50 kW. SW 4895 kHz

For me, the MW antenna looks like this one in Czech republic.

I don’t know the exact type of this antenna and I don’t know about the manufacturer.
IIRC there are similar ones in Russia, but I would need to find out the location out of the many I saved.

Marco (2023-06-20)