Thanks Dentdog.
One comment is that it appears that the marketing department of various Chinese tube manufacturers have become very good at developing variations that reference well-regarded 6SN7 varieties of the past. There are so many out there now!
I'm interested in learning about the relative longevity of the new production tubes. Anybody having problems with the Psvanes, or Black Treasure tubes or...any of them?
One comment is that it appears that the marketing department of various Chinese tube manufacturers have become very good at developing variations that reference well-regarded 6SN7 varieties of the past. There are so many out there now!
I'm interested in learning about the relative longevity of the new production tubes. Anybody having problems with the Psvanes, or Black Treasure tubes or...any of them?