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Tube rolling Question

Hello Tube Rollers
I recently bought my first tube preamp (Blue Circle 21.1). I've noticed I am need of new tubes as the tube whoosh is considerably more noticeable now than 6 months ago. The amp comes with  Electro-Harmonix 6sn7 tubes which I appreciate and dig the sound. I will certainly replace these with a the gold pin model as I like the sound profile. Here's my question:

What other tubes might you recommend for a different "flavor" of sound, and just to have fun with. I am a poor audio guy so please no recommendations for tubes that will cost more than preamp. 

Thanks in advance. 
128x128birdfan
facten
2,886 posts
 
2nd the Sylvania route. Also new production Sophia Electric 6sn7s are very good to my ears
rodman99999
6,185 posts
 
Some good info can be found here: http://www.dehavillandhifi.com/6sn7_vt.htm Having tried the top twelve on that list, I’ve been using the Tung-Sol, Round Plates and Sylvania 6SN7W, metal base tubes for years, with no desire to move. SO GLAD I bought a few, before the prices went nuts! Some, that provide almost all the nice attributes as those, but- don’t sell for nearly as much, are the 1940’s, bottom-gettered, Ken-Rad(JAN-CKR) and bottom-gettered, Sylvania(JAN-CHS), VT-231/6SN7GT tubes. The balance of those twelve(that I tried), were all too warm/colored(for my taste, anyway). Here’s a very reliable source: http://www.audiotubes.com/6sn7.htm
lowrider57's avatar
lowrider57
5,417 posts
 
I'm using the Tung-Sol Round Plates, 1940s and they are wonderful. But at $275 per tube for low noise low microphonic, it's a major expense.
geoffkait's avatar
geoffkait
23,365 posts
 
I used the 40s Tung Sol rectifier tube with my Sylvania 6SN7 Bad Boys in the Woo Audio headphone amp with great success. I bought a matched pair of Tung Sols at no small expense just in case. Better safe than sorry. I also used two Herbies Tube Dampers per Tube, one on the glass the other on the base. Again, better safe than sorry. 
rodman99999
6,185 posts
 
I consider spares indispensable.  I just hope my spares stash outlasts me.  I'd hate to have to miss a mortgage payment(proper priorities, and all).
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