My Tektronix 453 is still going strong after being retired from use in avionics testing/troubleshooting/repair. As is the old black-Bakelite Simpson analog-meter VOM.
Another "old" technology I use regularly are vacuum-tube guitar amplifiers like the ones I play through, repair, and design & build. Nearly all the major guitar amplifier makers' current lines of flagship pro- and semi-pro-level guitar amps are tube-based designs.
Many of the most sought-after and expensive studio microphones are also vacuum-tube based (integral pre/buffer amp).
There are actually more vacuum tubes being produced currently than were being produced 30 years ago.
Audiophiles also tend to prefer tube-based amplifiers.
I hope relations between the US and Russia don't deteriorate too badly. Russia is a major manufacturer and exporter of vacuum tubes, as is China. Chinese tubes in general are not as high a quality generally speaking though, in my personal experience.
Oh, and the PC I posted this with is circa 2000 with a CRT monitor.
Do I win an internets?