@lewm cool.
Testing the NOS Russian 6H23P EB tubes today. I prefer the EH.
So at this point the Siemens are excellent with a nice vintage flavor to the sound (sweet, big and meaty), the stock EH are actually very good (modern, neutral sound with good dynamics, fast transients and clarity).
Hopefully the new GLs will arrive in a few days.
So far it’s been fun. And I find that I prefer a slightly bigger presentation of the Siemens. Might also give the Amperex and Mullards that @lalitk recommended a try soon, based upon the results achieved with the Lions.

