Building the Audio Note Kit 1 SET amp...

Charles,
I feel the same way as John. I am SO happy with my Kit 1! It has taken me beyond fiddling with gear to enjoying musical performances. And I am shocked by how just replacing that one 6SN7 tube kicked the amp up to a higher level of musicality. I never knew there was so much care and artistry lurking in so many of my records and CD's... it gives you an emotional connection to the listening experience because you appreciate how much of themselves the musicians and engineers poured into that recording.

New post on the RCA 6SN7 tube is up on the blog!

Rebbi,
Your journey in tube rolling has just begun. I have all the top rated 6sn7's. I'm happy the gray glass worked out for you. It is a beautiful sounding tube.
There are many others that might sound even better in your set-up. My go to 6sn7 tubes are the Sylvania 6sn7gt 52 bad boys. I like them even better than the over priced Tung-sol round plates.
Another tube that isn't so expensive that sound really nice are the Ken Rad staggered plates either black glass or clear glass, YMMV.

Enjoy the ride!
Joe

Joe,

I'm so glad you posted.
There's a local fellow who's selling off his tube collection, which must've been huge. I asked him about 6sn7's and he replied saying that he has the following to sell. I'm curious if any of these are worth picking up:

RCA Radiotron Electron Tubes, one labeled 6SN7GT, the other GTA
Sylvania, old Yellow box
Sovtek
Ruby tubes

What do you tube rollers think?

Rebbi be careful most Kenrad 6SN7 are very microphonic. I would stay away from Sovtek and Ruby tubes.