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This thread is started for others and to maybe get a few more venders for myself to choose from. To start off I do buy a bunch of tubes and sell some NOS from time to time. I can say for sure that dougstubes and kcatubes are both great venders and supply tubes in perfect shape. The problem as many of you know is we buy a supposed new tube and it tests bad or lets just say not 100%. I test all my tubes on my Sencore for shorts and leaks and then test for transconductance and emissions on my TV2. Anything I have bought form doug or bluestrat at kca are top notch and test great. This is a good ideal for guys buying tubes that don't have tube testers to use these guys. I will also mention that I have bought a set of 4 tungsols from Musicians friend and they tested excellent as well. The places I have ordered and not seen the numbers I like are expressparts, eruo tubes, and various ebay tube guys. Tell me your experiences and equipment you use for testing.