I also tired four different kind of 7n7 out of curiosity 2 years ago.
Although they sound clear and detailed but lack overall musicality compared with vt231 or 6f8g tunes.
Thus no more interest in 7n7.
Thomas
6SN7GT VT231 TUBES
I love the old VT231 tubes!
The best sounding 6SN7GT ever...Sylvania, Raytheon, RCA, Ken Rad Etc. They may still be found, if you have $$$!! Where can I find true NOS VT231s? Any favorites that I missed?
(TS never made a VT231 - but their old black glass tubes with oval micas sound great!)