Reliable valve suppliers on web

Luna:

I go to Upscale Audio . Kevin has good prices; matches the tubes; and runs them for 72 hours on his Tubezilla. He stands behind his products.

Regards, Rich

It depends, are you looking to puchase NOS tubes or current production tubes?

For NOS, I go to Andy Bouwman of Vintage Tube Services (vintagetubeservices.com, I believe). Nobody tests them more thoroughly than Andy, nor knows more about the old tubes.

I whole heartedly concur with the Upscale Audio recommendation! Kevin has NEVER steered me wrong in his advice and I have purchased at least 12 different sets of tubes from him over the years. First class all the way!