Why Can't Modern Tube Manufacturers Make a Proper Tube?

Current tube manufacturers, at least the ones I have tried should be utterly ashamed at their ineptness, apathy, ignorance, or whatever it is that makes them seemingly unable to make a tube properly.

And I never knew what I was missing before I tried reclaimed tubes from the 1950's, an era where people build things instead of ruining things.

The present manufactures are said to have the actual machinery to make tubes for which they have examples in hand and schematics on file, but they just can't do it.

Is this a case of Idiocracy? Are people just stupid today? The world and all creation do follow the 2nd rule of thermodynamics so I guess this is the case.

Listening to Black Plate RCA’s and Mullards in my system, even for a short time made it glaringly obvious that modern manufactures are embarrassingly inadequate. There is absolutely no comparison.

Why can't modern tube manufacturers make a proper tube?

1. lack of IQ?

2. Apathy? 

3. Lack of Materials?

4. Lost knowledge? 



@decooney I am thinking the same about how many people have actually tried several new production tubes before dismissing them as sounding horrible. After some experimentation over the years with both NOS and new, my amp sounds the best it ever has using all new production -Linlia, Psvane, and TungSol.My preamp still uses NOS RCAs which I like very much so I keep some extras stored.But I plan going forward to give some new productions  a chance.

Tony, I believe your thesis is incorrect in regards to my situation. It may be true in regards to others.  I recently (3 years ago) replaced 18 year old Gold Lion KT-88s and ax-7s with the same. Flawless replacements.  I'm positive they were not NOS. I could not be happier. I am not arguing that different tubes may produce a better sound. I am saying these Russian replacements arrived as advertised. 

I'm testing out the durability of the Linlai 6sn7 tubes compared to my kenrad's, the kenrad's don't sound quite as good as the Linlai, but I'm still on the durability stage, the Linlai have only been on a year on 24/7 , the kenrad's were on 24/7 for 3 years and still sounded good. Only time will tell now.


I replaced modern GL AT7s and AXs with old RCA and MULLARD and the difference was night and day.

I currently am using modern GL KT77s and I have no idea what original tubes will sound like.