Tube question

I also am extremely fond of the tubes from Germany, Holland, and England. A lot of my reference tubes (6922 and 12AU7) are these varieties. That being said, don't discount the American tubes, which more than a few people seem to do.

The Shuguang Triple Mica 12AX7 beat my 1960s Mullard Blackburn 12AX7. And, though it wasn't night and day, it was decisive.

My favorite of these tubes, however, is the Sylvania Triple Mica 5751. The Grey and Black Plates definitely exhibit different flavors - what works for you only you can decide. The Greys are a bit more smooth and lush, while the Blacks are more incisive and detailed. In my system, for my taste, nothing has yet beaten the Black Plates.

My feelings agree a lot with what is put forth at Joe's Tube Lore.

The Triple Mica of the new Shuguangs make me think they've targeted the famous American 5751s of the 1950s. Haven't really seen another 12AX7 with 3 micas.

In a 12AX7 tube shootout at my home - with too many audiophiles to really be able to say things with 100% certainty, the Shuguangs placed in the top three, along with the Telefunken Ribbed Plate 12AX7 and the Sylvania Triple Mica Black Plate 5751. Most agreed with me regarding the Sylvanias - they came in as the winner. The other two kind of had the camp split.

There were some good tubes included that didn't earn top honors - the Telefunken Smooth Plate 12AX7, Mullard Blackburn 12AX7, JJ 12AX7, and Ei 12AX7. Would have been nice to also include the Sylvania Greys, GE 5 Star 5751, Raytheon 5751, as well as some others, but the list of tubes was growing too large already.

Well, the tubes I ordred from Andy are not in that lot, but Andy loves them, and Joe of Joe's Tube Lore does as well: The Amperex Bugle Boys, early 60s Should have them Saturday. He also recommended that the 6DJ8s by Amperex of about the same time, were fabulous. I'm going with them, as well. At least I'll have a quality referent. I'll see where, if any, I may roll. Recommendation for break in? 8 hours continuous enough? Thanks again. warren :)

I also am a very big fan of the Amperex Bugle Boy tubes. I like the 12AU7, and am about to test 2 sets of their premium 12AU7, the 7316/E186CC - both the D Getter and Halo (now I forget if it's the large or small halo) Getter versions I've recently acquired.

Their 12AX7 tubes are excellent, but I still prefer the Shuguang.

At some juncture, I'll give the 6DJ8 and a few other Amperex flavors a try. Right now, in my CDP, I'm using a pair of Valvo (I forgot the source) 7308.

One thing to keep in mind regarding Amperex/Bugle Boy is that they are rebadged tubes from other manufacturers. So, often one will have a tube that is actually a Mullard, Philips, etc., and knowing that eliminates the need to buy both to try in comparison.

Again, I realize it isn't always economically feasible, but I cannot stress enough the insight provided by acquiring and auditioning as many tubes as possible. Perhaps a group of people could get together and form a "Tube Exchange" program, sort of like a lending library, that allows people to try a wide variety of flavors, while keeping the cost down for everyone?

Thanks Trelja. All, good points...

warren :)