Oh man Earl. I got a couple of guesses. :)
I have bought some tubes from various folks and I know you are looking for someone else other than Upscale but Kevin's always test great and last a long time. (I haven't bought any power tubes from him though.)
I have bought some tubes from various folks and I know you are looking for someone else other than Upscale but Kevin's always test great and last a long time. (I haven't bought any power tubes from him though.)