Best of current 12ax7?

I agree that the sonic result is dependent on the context and application. I have had good luck with and enjoy JJ, Sovtek, Genelex and Telefunken in a variety of applications, power amps, pre amps, phono stages and guitar amps. It all depends, which is why rolling to find what is good in a given context is de riguer.

Hi Rja, I believe that buying from a reputable dealer that fully tests their tubes is the most important aspect of tube purchases.

I see Galen Carol also sells the EAT tubes. HE also sells the RFT tubes which I've never heard of.

TJ Full Music was better than the Psvane in my Thor preamp.

my favorite new production are the Tung-sol gold pins, great balance between detail and warmth.