Tube blog

[mozz]

Ran across this searching google for some 12ax7 info. Some info is dated but still good info from someone involved in the industry. You have to read the whole thing.
Los Angeles - My City: Current Production 12AX7 Tubes

[J M Fahey]

Well, 12AX7 themselves are dated , aren´t them some 60 y.o. or more?

If anything, I´m amazed at the hot arguments being fought around them even today

[Leo_Gnardo]

Ran across this searching google for some 12ax7 info. Some info is dated but still good info from someone involved in the industry. You have to read the whole thing.
Los Angeles - My City: Current Production 12AX7 Tubes

Yes, definitely good and recommended reading, gets my vote, and thanks mozz for bringing this to our attention. The author is Myles Rose, who was top tech inside Groove Tubes for many years. Without any threat of corporate sanction (like getting fired), he can now tell the truth about what goes on inside the tube biz.

Looks like there's lots more interesting entries on his blog. I'll be reading thru it as time allows in upcoming weeks.