How important is it for you to attain a holographic image?

Piano, I went to Uncle Kevin at "Upscale" audio, whose price was $349.00


      https://www.upscaleaudio.com/products/telefunken-e88cc-6922

I need both 6922 and 12AU7; now I think I'm going to buy 12AU7. Will go to Brent Jessee and get back to you.

Piano, Brent Jessee's 6922's are $300. All these Telefunken tubes have the same exact numbers, including the new ones. His 12AU7's are also $300.

Nobody is cheating anybody, it all makes sense; NOS tubes cost more, even when the new and the old were made at the same factory. As best as I can figure it out, someone bought the old factory and began making the identical tubes.

From what I can recall in regard to discussions on these tubes, quality control was better then, even though the tubes look identical.

As I stated, the new tubes are fantastic; one was bad, and they had a good one on it's way before I got off the phone. That was months ago, and now I'm happy with no complaints.

Presently, the new tubes are sold out. Someone would have to buy both and compare to make a determination. Since I don't have the spare cash, it won't be me; I'm going to buy the new ones when they get them in stock.

The NOS lasted longer than any tubes I ever had, so there is something to be said for quality control.

How long these new tubes last remains to be seen.  

Quite a price increase on the NOS 12AU7’s since I bought them less than a year ago.

Orpheus10, Out of curiosity, what is the brand of the 'new' tube?