Yes, most tube users are using vintage tubes...stuff made mostly from the 40's through the 70's. They're old, and when they're gone, they're gone which is why prices keep going up. The good news is there's certainly manufacturers of tubes today. Nobody would manufacture it for audiophile use, but in certain parts of the world tubes are still needed for industrial electronics that are relatively old (including military hardware such as old used Soviet planes, ships, radar systems, and communications/telecom equipment that wind up on the auction block to smaller countries on the cheap.) But also there's a much bigger tube market out there for the music production industry...guitar amps, mic amps, mixing boards, etc. I think most if not all new production tubes are made by New Sensor under various brands, Electro-Harmonix, Sovtek, Tesla, etc. JJ in SK also makes current production tubes.
Audiophiles will rave how new production tubes are vastly inferior to vintage tubes, but some of the new ones sound as good as mid-priced old ones. The really special old ones will never exist again though. Also NOS is typically more reliable despite age since new ones are made for effect rather than necessity. It's sold to musicians and audiophiles largely. The old ones
had to work since a lot of the old ones were meant for industrial (telecom) and military (guidance, radar/tracking, navigation, communications, avionics, etc.) use. They had to withstand extreme shock and the like. The new ones do not.
There are three stock options with Lyr. The Russian tubes are vintage, and the "stock" GE tubes are vintage (I believe they were meant for TVs in the 70's.) The "JJ" option with Lyr is new production from JJ Electronics.
Either way, both HD650 and HD800 sound fantastic on the Lyr with some nice tubes
There's certainly better amps out there for both of them, but darned if it doesn't sound great on Lyr....it's got all the basics covered.