845 tubes

Have you asked Rachel in Grant Fidelity?

Yes I did but it’s hard to get a straight answer. Stay safe

Ha! You're right. I was on their site before I saw your post and found out about the new Linlai brand, and noticed they weren't saying much. Tube picking is more fraught with risk than expensive wine.

I looked at both but ended up purchasing the 4 of the Psvane Acme Supreme 845 tubes from Grant Fidelity which absolutely destroyed anything I used before. I liked them so much ,I also purchased 4 of the 300 B tubes for my amps. I was willing to pay more for the Acme tubes because even though the management team of Linlai came from Psvane how many of the skilled workers joined them?  Having been very involved in manufacturing over the years ,I know that it takes a lot of skill to make products with precise tolerances and you don’t get these skills without spending a lot of time working in your craft. Yes ,the price of the Linlai tubes looks comparatively attractive but I wasn’t willing to risk potential issues to save a few bucks.