When were the best tube amps made?

We all know NOS tube is much much better than the current tube, Some one will argue today's technology is much much advanced than the past, but what we get now with the tube? If the technology can cover it, we will ditch all NOS tube.

Same story play with tube or amplifier.

Year 1967 we have original McIntosh C22 (original C22), now we have Mk V

could  anyone tell  me MK V is better or worse? It is the simple example for preamplifier

I love my VAC Renaissance 70/70 Mk II, it's 20 years old and still works great  However I am taking it back to Florida this January to get the latest MKIIIs updates, then it will out live me! Handmade in the USA!

I like the 45 tube tube too.  Are you using it single-ended with 94 db/w speakers?  That would be a bit on the edge.  I had a pushpull 45 amp which I used with 99 db/w speakers, and I had no issues with power, except for large choral works at somewhat high volume, but I did sense that I was at the edge.

I love my VAC Renaissance 70/70 Mk II, it's 20 years old and still works great  However I am taking it back to Florida this January to get the latest MKIIIs updates, then it will out live me! Handmade in the USA!

@fthompson251 I hear that's one of their classic models, definitely a keeper! There are still fans of their 300B sound before they transitioned to beam tetrodes.