reliable tube sources

Call Andy Bowman at Vintage Tubes. You can also try Kevin Deal at Upscale Audio. Kevin may or may not sell to you as he likes keeping his stock for customers who purchase equipment from him. Both are extremely experienced.

Email audiogon member "longplate" a real tube expert who can help you out with your NOS tube needs.

I have dealt with all three of the above mentioned tube afficianados. All are very reputable,knowledgeable and helpful as well as being nice guys. Additionally, Adondysh , another "audiogoner" has - in my experience - proven himself and deserves mention. Turner Truitt/Atlanta