6SN7 tube GTA vrs GTB

I use Sylvania GT's and the ones known as (Bad Boys)in my pre. I can not find better.

(http://home.att.net/~chimeraone/6sn7sound.html) I've personally verified the findings of this site. That's why the TungSol JAN CTL round plates, and Sylvania JAN CHS/6SN7W(tall bottle) tubes have found a home in my system. None can deliver the music with less harm than they.

Looks like I will be starting some more tube rolling in the near future.

Rodman-

I've been wanting to try some Tung Sol round plates..I use the Pope Holland's now. Thoughts?

Hello Mr J- I've never listened to Pope Hollands, so I can't offer anything in the way of a comparison. Do you enjoy a very uncolored, alive presentation or something more euphonic/tubier? The TungSol, Ken-Rad and Sylvania tubes I mentioned will deliver whatever comes out of your source with a minimum of alteration(very transparent/uncolored). Some listeners enjoy a bit of added sweetness/warmth. If that's your pleasure: The Raytheon, RCA and National Union VT-231 tubes still produced excellent sound staging, imaging, dynamics, etc but with just a touch of added warmth. I suppose, in a system given to strident highs: that might be beneficial. My suggestion would be to try a pair of the Sylvania bottom gettered VT-231s, and if they appeal to your tastes- buy a pair of Tung-Sol round plates. They just have more of everything that's good in the Sylvanias. Where are you located?