Zeptember

Thanks for the help. before you posted this reply, i replaced the sovetek tube with a mesa 12ax7 that has that rubber tube dampenier around it, which i was told to be a select chinese valve that has better dynamics that reads SPAX7-A on the dampener, and it works fine, but kept the JJ's in the rest of the slots. I hqave to disagree with you on the JJ's being usless at higher master levels, I noticed a HUGE improvment in my tone from those pesky Soveteks. But, my question still is, what tube wolnt break up in the fassion im hearing with my Prescription Electronics Experience pedal? And what am I hearing, what is it called?

OK. First off, i love the testing you've done on all these tubes, it saves us players a lot of hastle.Second, HELP!!! I have a Mesa/Boogie Nomad 55 2*12 combo amp with 5 12ax7's. I orderd some 6l6's and 12ax7's(matched phase for v5) from bob at eurotubes. Love the 6L6's, but in the pre, the 12ax7's arent working for me in the first slot. I switched them all out, thinking i would get a better sound, well, i did, somewhat. I loved the sound of all the channels(3), but i use a Perscription Electronics Experience through Channel 1 in a fasshon that they (the jj's) don't like at all. Before i changed them, there were the usuall Soveteks in there, but with one JJ appearing in V2 (1st and 2nd stage channel 1). With that, the Prescription Electronics Experience sounded fantastic, it sounded like my amp was about to have a nuclear melt down!! So much distortion, and cut, that when i went over to channel 3's gain,it sounded that my trebble was all the way off. I love this fuzz pedal,but i am noticing when i use it in my clean channel (the only place i use it), it starts to clip at some point, the kinda distortion you hear like after the regular fuzz distortion with the JJ's in there, but the clean channel sounded better, and so did the rest of the amp with it in, but it didnt sound good at all with the JJ's, i lost all my lovely cut with that pedal, it sounds all muffled now, and its clipping like crazy! I did have some of this problem with the Soveteks in there, but just turned the trebble down on my amp to compensate for it and it worked with the Soveteks, but not at all with the JJ's. Concequently i had to put a Sovetek back in V1 to fix the clipping problem, but now i want the rest of that good sound back when i had the JJ's. I need to know what you recomend for me as to finding another pre tube for v1 to cure this clipping problem, but still give me better tone than those pesky Soveteks. Maybe a Military Spec Jan. Phillips? Dunno? PLEASE HEPL! Oh and i need to know where i can get this tube too! Maybe on EBAY?