1 archtopisking 9 months ago Here one that has been beat to Death many times ! I've been on tube shoping spree , I've bought New JJ's , Nos Baldwin/Sylvania , Tungsram ,Philips No super exspensive stuff. I test that they work on my Epi valve jr (1 12ax7 + 1 EL 84 ). This might not be the right amp sound testing , and my ears are not the best, but I think that the JJ's sound just as good as the others , maybe even quieter on idle than some of the Nos . I was suprised buy this. Been Reading to much ? Tubes that I have blown or made noise, have all been 10- 15 year old China stuff. My amps from the 60's, all have old pre amp tubes - I have not had to change them (if it Works ,don't mess With it) , so I know they last. I have not tried these new tubes in the big guns yet . How do you folks think these New Production tubes work these days (vs Nos priced at or a little above) ?