6H23 tube Ya or Na ?


I've heard this tube is a great replacement tube for the standard 6922.I own the modulus 3A ad ARC Vt100MK11.Has anyone heard great improvements with this tube?
thanks mike
hiendmmoe

Showing 1 response by sstark

I have used them in an AI Modulus also and they are quite dynamic, quiet, non microphonic and very long lasting. While other NOS tubes last at most a couple months, e.g. Telefunken, the 6H23 still test fine. All in all qite a bargain.