Ok so just came across some incredible Tungsram, NOS 12ax7/ecc83 that might not be high-end, but that make my high-end lineatage play like I’ve never experienced before. Have run through, Sovtek, Mullard, Telefunken, Genalex and now these Tungsrams and they are breathtakingly good. Still amazed by how incredibly a 60yo tube can play. I liked all of the ones mentioned (maybe not the Sovteks) but the others are/were each VG. Just not otherworldly like these absolute gems!
tungsrams are absolutely top tier old stock tubes, made in hungary on old telefunken/siemens tooling, closest thing one will find for those desiring the crystal clear, airy sound of real deal old stock telefunkens
always distinguish the modern day russian tubes being sold under the old brand names vs real deal ones from the ’60-80’s - as you have experienced in your case