I changed a Tube and…

Solid state is great , but I prefer Tubes for now .

I have no problem with warm up time and some  minor tweaking [ check bias , change a tube etc.. ]  It's all part of the process . 

I'm not looking for Neutral , Looking for warmth / emotion .

I have a solid state  set up as well [ Exposure 2510 + ] - it's very nice and probably a bit on the warmer side - to my liking .

@trivema 

If it's a true NOS British made GEC/Genalex B749 it's doubtful any of the tubes you mention would hold a candle to it. If it's a Russian made tube a grilled cheese will outperform it.

@noromance 

"Telefunkens are the best for clean (neutral), airy, transparent sound."

I respectfully disagree. Everyone thinks Telefunkens aer the best for clean (neutral), airy transparent sound. They aren't.

Telefunken makes a bunch of really good tubes and a few great ones. Valvo makes a bunch of really great tubes and a few good ones. Siemens, too. They are the tubes that the people that buy Telefunken think they are buying when they buy Telefunken tubes.

If you aren't familiar with the Valvo Long Plate mC series tubes I reckon you'd find them quite interesting — in a far superior kind of way.

@chickenoregg  Are you suggesting diamond base Telefunkens are made by Seimens and Valvo? Are the Telefunkens I use in 3 phono amps something else? 

They are the tubes that the people that buy Telefunken think they are buying when they buy Telefunken tubes

@noromance 

No. I am not suggesting that at all. 

It is established fact that Siemens produced a great many tubes for Telefunken. They are labelled for Telefunken but do not (in my years of experience in selling tubes) have the diamond on the bottom. They instead have a number embossed in the glass as is characteristic of Siemens made tubes.

But that wasn't my point.

What I am saying is that Telefunken tubes aren't as great as people think they are. They think that when they buy Telefunken they have somehow bought the defacto best tube out there and in one fell swoop dismiss every other tube as inferior, often without ever having heard many (or in some cases any) other tubes out there. The only thing they've heard are people just like them talking about how great Telefunken tubes are. Truth is, if you secretly swapped out their Telefunken diamond on the bottom tubes with some Ei tubes (aka "Fake Telefunkens") hardly any one of them would notice.

I think Telefunken tubes are good. Very good even. Rarely great. Telefunken made three types of 12AX7, 17mm Smooth Long Plate, 17mm Ribbed Long Plate and the frame grid ECC803S; with the latter often being made by Tesla or Siemens under contract for Telefunken. The ECC803S is a great tube. The garden variety Telefunken 17mm plates are very good, but they are not great.

If you look at the number of variations that Valvo and Siemens made for 12AX7 such as the E83CC, E283CC, and the mC series of long plate tubes (e.g. mCp, mC1, mC2, mC3, mC4, mC5, mC6) and then the variations within each of those (for instance Valvo made three types of mC1 tubes alone – 45º Halo Getter (1957), 45º Foil Getter (1956), and Tilted Square Getter (1956-7)) there are dozens and dozens of different tubes that do all the things that Telefunken tubes do and do them better.

And listen, I don't know you, maybe you know all of these other tubes intimately well and still feel that way. I would respect that tremendously. 

In any event its late, I'm tired, and tired also of seeing the same old Telefunken propaganda out there and chose to vent my frustration on a stranger that I am sure has far better things to do then engage with an exhausted, temporarily disgruntled tube dork.

Have a wonderful night.