Thank you, pucho812. I do have those for both tubes. It's just odd that the distributor has no links to mfg nor any specs what so ever.
I did find this at:
www.thetubestore.com - Northern Electric Audio Tubes
"The original owners, Bell Canada and Western Electric, formed this company to produce telephone and audio equipment including vacuum tubes. Western Electric licensed their designs, processes, and technology to Northern Electric for the first fifty years of their production.
We are now re-introducing this classic brand and bringing to you the highest quality audio tubes possible. We are working together with a small, foreign tube manufacturer to produce exceptional high quality versions of common audio tubes. And while this manufacturer is not well known, they are the “Ferrari” of tube manufacturing and design. The manufacturer’s immaculately clean factory houses state of the art and high precision equipment. All of the design and production is overseen by a
living legend in tube design, Zhe Shen Liu.
Upon arrival in Canada, each tube is rigorously tested in a three-stage process for noise and electrical functionality. Tubes passing this are then printed and packaged for sale with an extended
6-month warranty.
We are excited and pleased to present our new reissue Northern Electric audio tubes." [Emphasis added]
"Upon arrival in Canad": - From where?
The Tube Store's own brand, "
Preferred Series," is noted to be mfg'ed in the Shuguang factory.
From:
Preferred Series 7025 Audio Tubes - www.thetubestore.com
"The Preferred Series 7025 is a high quality 12AX7 tube type. This tube is a reproduction of the highly regarded and sought after Mullards from the 1960s.
This 7025 is a high quality and very rugged custom 12AX7 tube
produced for us in China by the Shuguang factory.
The plates are manufactured out of a premium metal imported from Germany and supported with extra thick mica spacers to insure against microphonics. They are burned in and tested at the factory and then again on our digital high voltage equipment to make sure the tubes selected for you will provide outstanding tone and performance..."
All that aside, their tubes so far are favorable sonically and low noise. So for now I'll have to follow old specs. Though with all the professed and audible improvements I feel like I'm leave money and performance on the table.