There is a tube thread on SS.org that started as a what tubes are you using thread and turned into a Q&A of characteristics.
I posted this there but thought maybe it would be useful to some here as well.
Just a collective of some of the best opinionated characteristics comparisons between different tubes.
Here are some pages that are definitely worth a read IMO.
I will post this one first since it is a worthwhile Power Tube comparison and the rest are mostly pre amp tubes. You may have to use google translate on some of the text but I found it very informative.
http://www.tube-town.net/info/doc/tt-tubemap.pdf
For anyone wanting to get into rolling some of the more rare and vintage tubes. This page is more to be able to identify what you are looking at vs. the characteristics of the sound but one hell of a good page:
http://tube-classics.de/TC/Tubes/AudioTubes.htm
Here are a couple of articles by the tube king. Definitely some of my favorite comparison articles.
Part 1: https://www.ebay.com/gds/The-Tubekings-G ... 1543426676
Part 2: https://www.ebay.com/gds/The-Tubekings-G ... 1527492241
This is a good comparison regarding vintage black plate 12ax7's.
http://oldstockaudio.blogspot.com/2011_ ... e.html?m=1
Here is a good one on current production 12ax7's and 6L6's.
https://www.tubesandmore.com/product...tubes/articles
There are also some general comparisons from other places as well just for example.
You will see a lot of commonalities between these pages but just keep in mind this is all someone's opinion. A more than likely much more experienced opinion but results may always vary.
http://www.shredaholic.com/nostubes.htm ... tcher=true
http://www.worldtubecompany.com/mm5/mer ... creen=TF-2
https://tubedepot.com/tube-comparison-tool
I posted this there but thought maybe it would be useful to some here as well.
Just a collective of some of the best opinionated characteristics comparisons between different tubes.
Here are some pages that are definitely worth a read IMO.
I will post this one first since it is a worthwhile Power Tube comparison and the rest are mostly pre amp tubes. You may have to use google translate on some of the text but I found it very informative.
http://www.tube-town.net/info/doc/tt-tubemap.pdf
For anyone wanting to get into rolling some of the more rare and vintage tubes. This page is more to be able to identify what you are looking at vs. the characteristics of the sound but one hell of a good page:
http://tube-classics.de/TC/Tubes/AudioTubes.htm
Here are a couple of articles by the tube king. Definitely some of my favorite comparison articles.
Part 1: https://www.ebay.com/gds/The-Tubekings-G ... 1543426676
Part 2: https://www.ebay.com/gds/The-Tubekings-G ... 1527492241
This is a good comparison regarding vintage black plate 12ax7's.
http://oldstockaudio.blogspot.com/2011_ ... e.html?m=1
Here is a good one on current production 12ax7's and 6L6's.
https://www.tubesandmore.com/product...tubes/articles
There are also some general comparisons from other places as well just for example.
You will see a lot of commonalities between these pages but just keep in mind this is all someone's opinion. A more than likely much more experienced opinion but results may always vary.
http://www.shredaholic.com/nostubes.htm ... tcher=true
http://www.worldtubecompany.com/mm5/mer ... creen=TF-2
https://tubedepot.com/tube-comparison-tool