I'm a big fan of Andy at Vintage Tube Services too, and have bought from many of the usual suspects. Most tubes that are marketed as NOS are not- they are old tubes, "pulls," that come out of other equipment. Finding true "never used" old tubes is a challenge. Brent is good and will stand behind his product- you should read his page on NOS as well.
@innai see you deleted your post about not liking Brent Jesse. Why?
my vote is for Brent and Andy for NOS. I try to never buy off eBay because anyone can put down test results and even show a picture of the tube tester that is biased wrong to produce good results. If Andy sold via online in a quick fashion that would be great but because of the slow wait I always go to Brent Jesse. Much quicker.
You just have to talk to Brent, either through emails or over the phone before paying. His website might say it is in stock but in fact it may be out of stock. And possibly the other way around. He usually replies to emails within one day, or even in a few hours. Feels honest and reliable.
A word of caution about his musical preferences. First, he states that Telefunken is his overall favourite brand. Then, in his opinion, some military grade Brimar sound as good as any Mullard. No. Not in my VAC. I still decided to keep them just in case as spares but could've returned for 80% refund.
@inna- did you tell Brent what your musical preferences are and what sound you are looking for? He wants to sell you tubes based on YOUR musical preferences, not his - he's got a very large variety on hand - if you've described correctly what you are looking for.
You must have a verified phone number and physical address in order to post in the Audiogon Forums. Please return to Audiogon.com and complete this step. If you have any questions please contact Support.