Shuguang 845B or Psvane 845 Hi-Fi series tubes

I'm not sure how the "new" 845 tubes compare to the Shuguangs, but thetubestore.com still has 845Bs if you decide to stick with those. They probably aren't as inexpensive as you found on ebay; however, as you metnion, they are getting tougher to find. I recently bought a spare pair of 845Cs because they are getting tough to find as well. Good luck!

I can't tell you much, but I can tell you that the Psvane 845-T tubes sound much better to me than the 845-B types in my own SET monoblocks. For the price they darn well should :-)

My understanding regarding the Shuguang 845s is that they make them in factory runs and then move on to another tube in the big tube family. Curiously the Psvanes were thought by many on certain other forums to be Shuguang products. I am sorry I can't comment on the sound quality but barring the KR etc. tubes you have little choice. I did see some very real looking NOS RCA 845s recently for $3 or 4K, but you can buy some decent amps for that and I thimk it was a running auction!

How about the Canada-Fuller 845GX. ? One year warranty, 15 day return policy if not fully satisfied from Hanshare-Electronics.

You may want to try the Elrog ER845 from Germany; they are suppose to be the cat's meow.