Public domain technical books published before 1964

Summary

tubebooks.org home Technical books online! 4.22 gigabytes and still (slowly) growing! Over 100 titles! Preserving the Knowledge of the Ancients? I've found that most of the technical books published before about 1964 never had their copyrights renewed, so now are in the public domain. So I am endeavoring to digitize and post some selected books relating to the "vacuum tube age" of electronics here. Many - maybe over half now - of these books were scanned by other people and contributed for me to post here. Many, many thanks to all the individuals who have helped out with this endeavor. I find that I do not have much time to scan books these days - the demands of the "day job" have increased much over the past few years - so I'm not doing a lot of scanning myself. If you have material that you would like to contribute, please send me an email. I have checked to the best of my ability to confirm that these works have expired copyrights and are now in the public domain. If you have information to the contrary, please contact me at: For information about copyrights and copyright renewals, look here. Here's a nice, easy copyright renewal search tool. For more details on how (and why) I do this, look lower at the bottom of this page. If you want to post any of these scans on another site, please contact me for permission before you do... I like to know who is doing what with these things! In general I don't have any issues with others posting the scans that I myself have done (it might save some bandwidth), although I do appreciate it if you credit the source of the scan. Beware - some of these files are very big (noted with red warnings). If you're on dialup better start a download and go to bed! The book scans below are in Adobe Acrobat (PDF) format. I recommend that if you don't already have it you download the latest version of Adobe reader. Some files have compressed images that may not work correctly with older versions of Acrobat reader. For books containing primar...