Rolling Tubes in the Atma-Sphere C-30 amp

Jeffreybehr,
I have emailed Ralph but I also wanted to hear from users of the C-30 about their personal experiences. Thank you for this very useful information.

Sabai, the row closest to the listener for the driver tubes.

Sabai, I have no idea how many TS-RPs others are using. I suppose some love to get 'full' benefit from the glorious sounds of them and don't care what it costs. I used them in the 2 voltage-gain positions of my '60s.
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The problem with NOS 6SN7 tubes these days is the fact the desirable brands like the Tungsol Round Plates, Sylvania GTs, Raytheons, Ken Rads, RCA red base are becoming scarce. What you see on eBay is a crap shoot. Most of these tubes are not being measured thoroughly and will most likely be unacceptably microphonic. There are a few trustworthy tube dealers out there that have a nice stash but you will pay for them. FWIW I have heard from Ralph based on feedback he has received from customers that the new production Psvane 6SN7 is quite good. I intend to try a set in my custom MP-3 when I receive it.

Clio09,
Thanks very much for all the details. Much appreciated.