Today I came across a website project called American Radio History and it reminded me that the internet is an amazing resource for education and sharing/archiving information. American Radio History is an online depository for endangered antique electronics knowledge captured in the form of hobbyist magazines from the early 20th century (back when tubes were the dominant active device).
The site’s FAQ provides a glimpse into how it came about:
There is so much printed material about radio and television that is becoming harder and harder to find. Libraries are discarding (often to the recycle bin) many titles. Other collections are very limited in access so “the rest of us” can’t find information we want.
The site began over a decade ago when I found I was often being asked questions I could answer from my own library. So I went digital for all to see!
Just one person does most of the work. I have off-site backups at several locations under the custody of well-respected radio historians. I also have several hearing-impaired persons who help with the major flatbed and Atiz Bookscan digitizing projects.
Here’s a short list of some of the dozens of relevant magazines for DIY tube reading:
Audiocraft
It is not difficult to find schematics in our hobby, but it is somewhat more challenging to find schematics accompanied by articles that reveal their inner workings. That is one advantage still held by professional publications like the audio magazines cataloged by American Radio History.
wauwatosa tube factory 
Thank you and the people who are helping you,I sincerely appreciate your work!
Several years ago I was shocked when my cousin had passed away and had stacks of very hard to find Audio and Electronic magazines and books that my excuse my French but Dumbass Uncle had bundled up the majority and threw it all in a recycling bin and another dumb ass used it as a dumpster and threw a bunch of paint in and ruined the majority of the collection along with many other collections of books and magazines! I can’t believe people are like that!!!!!
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