Tube Dealers 2021

Thank you all. Very helpful advices

Another vote for Brent Jesse. I  need an upgrade to vintage tubes for my Jolida phono stage and he was  extremely helpful and made an excellent recommendation, a 1960's matched pair of Telefunkins, and I then also pulled the trigger on upgrading my Jolida Black Ice box and my Rogue Sphinx V3 as well. I obviously wanted to  go with vintage  tubes across the board.

Audiotubes.com Brent Jesse

Vintagetubeservices.com Andy Bowman

I have had good dealing with:

http://www.triodeelectronics.com/tubes.html (Ned)
https://tubeworldexpress.com (Brenden Biever)

You may also want to try:
https://www.tubesandmore.com 
https://vacuumtubesinc.com
https://www.nosvacuumtubes.net
https://www.jacmusic.com (European)

seta45

Brent Jessee Recording is my go-to, for rare, NOS, 6SN7 Octals.    I've gotten some of my very best NOS, nine-pin miniatures (especially, my Siemens), from this seller, in Germany:   https://www.ebay.com/usr/audiotubes_de?_trksid=p2053788.m1543.l2754          I've never been disappointed by either TC Tubes, or Upscale Audio, when it comes to NOS or new production power tubes (6550, KT88, EL34, etc).        https://tctubes.com/          TC Tubes surprised me, when one of an octet of GE 6550s went bad, after almost two full years of service.   I returned the set to them and they ID'd the offender, found one that matched the remainders and gave it to me, gratis.     Hard to beat that kind of customer service.