I had a quad of the Winged-C’s that seemed to keep going and going… Was going to get another set a few years back, but went a different route instead. Lots of misses.
Then I tried the Psvane EL34PH replica tubes. They are now my go to tube. Dynamic, very open sounding, very transparent and they seem to breathe air into the music.
Show me where NOS Mullards are new production Russian tubes…….