Why are older tubes so much sought after


What is it with old stock tubes?? They were made years ago and surely by now we have must learned something about making them. So why are some people searching for old tubes. I have a Shanling CD player and I actually think the stock tubes are better than the 395a tubes.
128x128blueranger
hi eldartford:

you made a very insightful staemnet when you referred to stereo systems as "musical" rather than "reproducing" instruments.

in fact, all components are imperfect. thus at best, all stereo systems are imperfect reproducing instruments.

doesn't it make sense to select the nature of imperfection rather than settle for whatever accrues from configuring a stereo system in an attempt to create accuracy ?

obviously tube selection may be a way to voice a stereo system to suit one's taste.
Eldartford, FWIW, what was the HiFi enthusiast's goal in those days before the transistor was introduced to audio? All he had to work with was tubes, so I must assume his goal was unobtainable, he just didn't know it?

Now along comes the transistor based equipment and all of the great measurements regarding distortions etc. Now we have a standard, except for one minor thing. It was grain ridden, cold, clinical, and for the most part just unmusical (yeh, I know its gotten a lot better in recent years). And it certainly did facilitate the developement of power hungry speaker designs. Do you not consider the sonic distortions introduced by transistors to be a 'colorization' of the original recorded signal albeit less so in frequency response?

The goal of all audio components is, or IMHO shoud be, to collectively create a system that reminded one of a musical event being replicated in small scale in the home. The key to reaching that goal is a users recall or fantasy of what the music sounded like in the original venue. A very subjective venture, at best.

Of course we tune our systems to accomodate our sensitivities. What other alternative 'actually' exists. None I think. :-)
Newbee...I was around in those days. Our tube equipment hummed, hissed, and produced so much IM distortion that one percent harmonic distortion was not a problem! Our goal was to improve these measurements, and I guess we were successful except for the IM distortion which still runs around one percent in many (most?) tube amps.

By the way, how would you describe "grain" and what would cause it in a ss amp?
There is a simple answer to this arguement.If it sounds good(not impossible with so much of the "better" designs)it IS GOOD!...PERIOD!!

Tube or SS!!!....AND if anyone doesn't buy that,what can I say?

Have fun rationalizing your preferrence!!

I LOVE my own well thought out hybrid system,and have spent many dollars,and years voicing it to my TOTAL satisfaction....BUT....

I have many friends who have ALL tube set-ups,and guess what?

Those systems(very carefuly put together)sound fantastic!!

To me,it is a definite "Skill Set" that many folks have attained,over a few years of exprience(and spending money).It can easily be SS or tubes,but the bottom line is....

I've heard enough "musically convincing" systems to know "either" camp is fine....

We've heard this before..."It's the Magic of the Magician"!!

A "well educated" hobbyist can go in either direction(somehow that sounds a bit odd-:) and get superb results!

That's the bottom line!

Best