Lyr looks great with that tube

Shuguang Treasure Globe?
Do you also have the Russian new-production Tung-Sol? How does it compare? I think the bass and detail is great with that one already, and if it is even better with the globe I really

The tubes failed after a while, there's no shaming needed, these things happen and if anyone wants warranty buy new tubes only. NOS is always a risk and if it's not DOA you can't fault the seller IMO.
Time to buy a tube tester.![]()
Shameless plug... but i need to get around to ebaying my B&K606 tester @Rowethren
Won't tell you a whole deal other than if a tube is good or bad, but it's useful in that regard.
I'll let the thread know when it's up.
Burning in this amazing Brimar/STC CV1988 tube, and so far it is really nice. The sound is huge, clear, clean and warm at the same time. I will report back, after more burn in, but it looks like this tube, might dethrone my beloved Sylvania Bad Boy.
New tube arrived today. Just plugged it in. With no hours on it it’s a little bright on top, which probably means it’s making some high frequency distortion. Experience with other tubes suggests it will smooth out in 20-50 hrs
-Took a lot less than 20 hours. This tube is amazing! Very holographic imaging. Crystal clear
I use this tube with my Saga preamp and to my ears it's the best tube that I've used, even when comparing to a largish assortment of vintage tubes.