Two more books scanned by Martin Forsberg.
Ok, you say, what's a Trochotron? Read and find out... I ask you to
download and keep these books in your ebook collection as the wider
these scans get spread, the greater is the chance of their survival...
https://www.dropbox.com/s/x9h265x8ok5uequ/Development_of_Trochotrons_Bj%C3%B6rkman_Lindberg-OCR.pdf?dl=0
https://www.dropbox.com/s/6w1ku05wlrasv0a/Theoory_and_Applications_of_Trochotrons_H_Alfv%C3%A9n_1948-OCR.pdf?dl=0
28MB and 9MB respectively.
Grahame
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