anyone tried psvane 12at7

I use the Psvane tubes in a couple of my phono stages and really like them.

They are probably my favorite new production tube.

What I have in there now is Tung sol ecc81, they are a matched set done by Andy at vintage tube service, not sure if he is still around. He really does a great job of going through tubes and getting the right tubes for a application. Not sure if is really worth trying new tubes.

I recently had a Psvane 12AX7T-II die before it should have, so they're on my shitlist (I have new-ish Tung Sol 12AX7s and tubestore "preferreds" as backups so I can remain in the game). I bought a pair of Mullard CV 4024s recommended by "thetubestore" after a warranty covered NOS Phillips exploded. They work perfectly and reward you with the "mullard flash experience" every time you start up an amp...a bonus! Like he said, still seem like a bargain as far as NOS goes.

I was thinking of trying telefunken ecc81, problem is the preamp takes 8 12at7, so it would be a expensive experement.

Toothman, its the 2 tubes to the rear on the left side of each circuit board in the MP-1 that are the most important. So that would be 4 tubes instead of 8 if you just want to try them.