I can buy these tubes for 80 euro incl. shipping, are they worth it ? I am going to use one in Xduoo TA 26, are the measurements good enough to avoid channel inbalance ? Already have good tubes but reading yours comments I really want to try RCA too.

Update 1.10.2022 Today I got 2 another tubes delivered :) - Ken-Rad 6SN7GT - Sylvania 6SN7GTB "Chrome top ?" I'm going to test these and try to compare to Hytron (Bad boy ?) Still waiting for Foton '54, Novosibirsk '70 and Melz '52 (non 1578) to be delivered from Ukraine. Ken-Rad: Sylvania:

Thanks, just photos from chinees phone :)

I have found some information on tubedepot but don't know of this is true: @Paladin79 What do you think ?

Hello guys. Can someone help me to identify this beauty ? Hytron JAN-CHY 6SN7GT from 1951. I bought it for 10€ from my friend. Is this tube comparable to Sylvania, RCA, Tung-Sol...?