Why aren't new vacuum tubes as good as old ones?


Why aren't new vacuum tubes as good as or better than old ones? Don't we have purer metals? Precision equipment? Why isn't anyone making the highly regarded 7316s?
pmboyd

Showing 1 response by johnss

"new vacuum tubes are not as good as old ones "
That used to be my line of thinking. NOS tubes were made better, better choice of materials, more consistent, etc.

After trying the latest PSVANE Treasure series, not sure I would agree with that original line of thinking anymore.

The sonic qualities on the T-II PSVANEs are so good, I actually prefer them to many NOS types.

this would include input tubes as well as rectifiers. The VANE 5U4G, is an excellent sounding tube,....