The most consistent new tube I've used over the past 8 years has been Shuguang Black Treasure (
KT88, CV181-z, 12AX7 LS
) and Psvane (12AU7, 12AT7).
Shuguang Black Treasure:
http://psvanetube.com/wordpress/purchase/shuguang-treasure-series-vacuum-tubes/
Shuguang Custom 12AX7 LS, Psvane 12AU7, 12AT7:
http://psvanetube.com/wordpress/category/review/feedback/
Shuguang Black Treasure:
http://psvanetube.com/wordpress/purchase/shuguang-treasure-series-vacuum-tubes/
Shuguang Custom 12AX7 LS, Psvane 12AU7, 12AT7:
http://psvanetube.com/wordpress/category/review/feedback/