Anyone ever try the STR-450 Siemens Mesa NOS tubes?

[peterdenny]

Hey guys, I saw this out of the blue the other day and was intrigued. Has anyone had a chance to compare these to the regular Str-447 or other EL34 variants? I am intrigued and I think German tubes are among the best out there. Curious how these would sound in my RK2 combo.

http://mesaboogie.com/tubes/power-tubes/NOS-EL-34-STR-450-siemens.html

 

[Silverwulf]

I have a NOS quad of those STR 450's in my tube stash. Haven't tried them in one of my Rectos yet. I can pop them in next week and give them a go, though.