Hello again:
I would like to add another source that I used recently for Svetlana 300B tubes which is (http://conusaudio.com). The tubes are specially selected stock (not branded for export) that the dealer received directly from Svetlana and they come with an 180 day warranty. For those of you that are concerned with the past reliablity issue of Svetlana tubes (as I was) there is a brief summary at the website of what went wrong during the production period in which "those" tubes were manufactured and it is a must read, IMO. I now have over 100 hours on the Svetlana's and they are excellent in my setup, smooth and "natural" sounding, yet detailed (very musical). Conus carries other tubes as well and Euguene, the owner, has been a pleasure to deal with.
I would like to add another source that I used recently for Svetlana 300B tubes which is (http://conusaudio.com). The tubes are specially selected stock (not branded for export) that the dealer received directly from Svetlana and they come with an 180 day warranty. For those of you that are concerned with the past reliablity issue of Svetlana tubes (as I was) there is a brief summary at the website of what went wrong during the production period in which "those" tubes were manufactured and it is a must read, IMO. I now have over 100 hours on the Svetlana's and they are excellent in my setup, smooth and "natural" sounding, yet detailed (very musical). Conus carries other tubes as well and Euguene, the owner, has been a pleasure to deal with.