Are all of these NOS tube inventories real? How have we not consumed them already?

I recently bought a small lot on the evil site, mainly for the Sylvania Type 80 (ST enclosure) for the princely sum of $12.94 including tax and shipping.

I’m pretty sure it is NOS, and it is a STUNNING rectifier in my Zen Amp.

What I usually look for is a reliable seller who knows how to test tubes and includes all relevant measurements.

NOS has NOT been consumed.

I'm new to tubes.  Where's a reliable place to find Tungsram PCC88 / 7DJ8's

Also from upscale, I recommend the Matsushita 7DJ8

@dill I concur the Matsushita 7DJ8 is an excellent tube sadly it's increased quite a bit in price from $35 to $50 per tube. My preamp uses 6 so it's now sadly out of my price range, at least these days.