I am with rotaryphone, I don't care for Russian or Chinese tubes. I have used many different 12AX7's and prefer, by a long shot, vintage Tele's and are the only choice for me in my phono stage.
In my Jolida 502P (a GREAT amp sold recently as I switched to a single ended thing) I used GL 12AX7s and they were great…for 12AT7s I used NOS Mullard 6201s or 4024s which I really liked…and they flash on start up which is a bonus and a crowd pleaser.
I just received my amp today. It came from the factory with TungSol 12AX7'S & 12AT7'S for line and Electro Harmonics for output. It's been outside for quite a while. I'm not going to plug it in until tomorrow. Can't wait to listen to it
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